| Entries |
| Document | Title | Date |
|---|
| 20080205499 | High-data-rate communication link using multiple lower rate modems - A method for communication includes receiving a composite signal, which carries data at a first data rate and includes multiple sub-signals that are interleaved in a time domain and are separated by boundary indicators. The received composite signal is demultiplexed into the sub-signals by automatically detecting the boundary indicators between the sub-signals in the composite signal. The sub-signals are demodulated using multiple respective demodulators operating at second data rates that are lower than the first data rate so as to generate respective output data streams. The output data streams are combined so as to reconstruct the data at the first data rate. | 08-28-2008 |
| 20080219335 | Remote Access Integrated Tester - In conventional testing, the user is using an on-hand computing device to control testing; however, for the present invention the user is at the access point and the computer is remote, e.g. nearby or in the technician's vehicle, and not being used by the user to run the tests. The present invention provides a means to conveniently connect a customer provided network access device, e.g. a USB “dongle” modem, via a wireless link to the remote computer, which is providing the test application. The computer is remote, and the remote module device extends the reach of the commercial dongle modem so it is not necessary to carry the computer to the test access point. | 09-11-2008 |
| 20080240213 | Home Network System - The present invention relates to a home system, and more particularly to a home network system that is able to reduce of electric device by application of a modem that is capable of independently processing data. The present invention comprises a first electric device to transmit data including a home code input by the outside to a second electric device through a predetermined network; and a second electric device that comprises a modem by which it is connected to the first electric device through the network, and makes the modem to receive the data, after the initialization of the modem is finished, and read the home code from the data and establish it as its own home code. | 10-02-2008 |
| 20080240214 | SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING - Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to receive a waveform comprising a plurality of spectrally overlapping carrier signals from at least two of a plurality of remote units, wherein the plurality of spectrally overlapping carrier signals are modulated using an inverse Fourier transform algorithm; a transmitter; a processor coupled to the transmitter, wherein the processor outputs data for transmission to the transmitter, wherein the processor applies an inverse Fourier transform algorithm to the data provided to the transmitter; a controller programmed to instruct the transmitter to transmit a predetermined identifier on at least one of the spectrally overlapping carrier signals, the predetermined identifier identifying to a first remote unit a range of the plurality of spectrally overlapping carrier signals for the first remote unit to receive control information. | 10-02-2008 |
| 20080247446 | Determining a channel matrix by measuring interference - An apparatus includes a transmitter configured to transmit symbols to one or more receivers via a plurality of communication channels of a physical communication link. The transmitter is configured to estimate a phase of one or more off-diagonal elements of a channel matrix for the physical communication link based on values of signal-to-interference-plus-noise ratios at the one or more receivers. | 10-09-2008 |
| 20080247447 | Apparatus and method for transmitting digital data over various communication media - A system is described for transmitting a communication signal between power lines. The system includes: a transmitter which outputs an OFDM or an FM-OFDM signal at a radio frequency greater than 200 MHz; a first power line which receives the OFDM or the FM-OFDM signal from the transmitter and radiates the OFDM or the FM-OFDM signal from a conductor of the first power line; a second power line which wirelessly receives, by a conductor of the second power line, the OFDM or the FM-OFDM signal radiated from the first power line, and a receiver connected to the second power line which receives the OFDM or the FM-OFDM signal from the second power line. | 10-09-2008 |
| 20080253435 | SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING - Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises a receiver configured to receive a waveform comprising a plurality of spectrally overlapping carrier signals from at least two of a plurality of remote units, wherein the plurality of spectrally overlapping carrier signals are modulated using an inverse Fourier transform algorithm; and a processor coupled to the receiver, wherein the processor applies a Fourier transform algorithm to demultiplex upstream data modulated onto the waveform by the at least two of a plurality of remote units | 10-16-2008 |
| 20080260010 | Power Line Communication Methods and Devices - A power line communication method for realizing data communication between at least one first or sending power line communication partner device and at least one second or receiving power line communication partner device. The method checks transmission conditions of a plurality of possible communication channels, thereby generating transmission condition data descriptive for the communication conditions of the respective possible communication channels. Additionally, communication conditions of the plurality of possible communication channels are selected as actual communication conditions based on the transmission condition data. | 10-23-2008 |
| 20080260011 | Fast Modem Reconfiguration - Methods, systems, and computer program products for reconfiguring a modem. In an embodiment, fast reconfiguration of a modem occurs when a first modem determines there is a need for fast reconfiguration. The first modem signals its transition from showtime to fast reconfiguration. The first modem waits for acknowledgement from a second modem before transitioning to showtime. Once transitioned from showtime, the first modem estimates a signal to noise ratio and then exchanges parameters with the second modem. The first and second modems then transition to showtime. | 10-23-2008 |
| 20080273581 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD USING DIGITAL WAVELET MULTI CARRIER TRANSMISSION SYSTEM - In case of disposing a pilot symbol in data transmission which depends on a DWMC transmission system, in a plurality of transmission symbols on a time axis, a pilot symbol, which becomes a signal of a sine wave, is configured, by giving contiguous identical data in a plurality of predetermined symbols. By transmitting a transmission signal with the use of this pilot signal, between a transmitting device and a receiving device, it is possible to carry out channel equalization by complex information which is obtained from a pilot symbol. | 11-06-2008 |
| 20080279265 | Communication Methods and Apparatuses - A system and method for communication provides an adaptation value for at least one communication parameter, the adaptation value describes a variation of the communication parameter to be enabled during that data communication. The communication parameter is determined such that the variation indicated by the adaptation value is possible during data communication without violating a limit for the communication parameter. | 11-13-2008 |
| 20080291986 | LOW POWER PARTIAL FUNCTIONALITY MODEMS - Low power partial functionality modems, receivers, transmitters and transceivers. Some embodiments include a first mode for receiving/transmitting a first data stream over wires, and a second low-power partial-functionality mode for receiving/transmitting a low throughput second bidirectional data stream over a subset of the wires, wherein a bi-functional analog front end supports both modes. | 11-27-2008 |
| 20080298444 | Dsl System - Methods, techniques, computer program products, apparatus, devices, etc., used in connection with DSL Management Interfaces, significantly improve the management capabilities of a DSL network and/or improve testing relating to DSL equipment and services by permitting better control and operation of a DSL system, including implementation of timestamping for more accurate measurement, monitoring and control of a system. Timestamping further allows customized data collection techniques, where a DSL line can be measured or monitored at intervals whose frequency depends on the line's stability. Moreover, data parameter read and control parameter write operations are presented in conjunction with the use of timestamping. Also, control and operation of a DSL system is enhanced by implementing bit-loading that minimizes, eliminates or otherwise mitigates the amount by which the SNR margin per tone exceeds a maximum SNR margin quantity, where such bit-loading can be selected through an appropriate interface. | 12-04-2008 |
| 20080317107 | Method for Selecting an Operating Mode Automatically - Embodiments of the present invention discloses a method for selecting an operating mode including the steps: a first station transmits downlink handshake signals to a second station; the second station acquires the information of the downlink handshake signals and transmits the acquired information to the first station; the first station selects an operating mode according to the received information. The downlink handshake signal includes the border tones in each mode and supported by both the first station and the second station. The present invention reduces the time of selecting an operating mode and further ensures that the xDSL network operating mode according with the requirements of practical services can be selected. | 12-25-2008 |
| 20080317108 | DATA PROCESSING TERMINAL SYSTEM AND TRANSMITTING AND RECEIVING METHOD USING THE SAME - An information processing terminal system includes an information processing terminal ( | 12-25-2008 |
| 20090003421 | TIME-DOMAIN EQUALIZATION FOR DISCRETE MULTI-TONE SYSTEMS - A multiple carrier communication system includes a primary impulse shortening filter that receives an output signal of an analog to digital converter and accepts coefficients. A secondary impulse shortening filter receives the output signal of the analog to digital converter, outputs an output signal, and passes coefficients to the primary impulse shortening filter. A reference signal generator outputs a reference signal. A comparator compares the output signal and the reference signal and outputs a resulting error signal. An adaptive processor computes coefficients for the secondary impulse shortening filter based on the error signal. | 01-01-2009 |
| 20090010318 | Modulation Scheme for Communication Environments - According to an aspect of the present invention, a symbol corresponding to a combination may be determined from a symbol set comprising at least sixteen PAM symbols. A sample such as a pulse may be generated based on the symbol value and a train of such pulses may be transmitted at a rate of at least 10 giga bits per second over a communication medium comprising, for example, a twisted copper cable. The received signal may be demodulated based on the empirically determined reliability values. | 01-08-2009 |
| 20090016419 | BUS MODEM FOR BUILDING AND INDUSTRIAL ELECTRICAL SYSTEMS - A bus modem for building and industrial electrical systems comprises a module ( | 01-15-2009 |
| 20090022214 | Optimized Short Initialization After Low Power Mode for Digital Subscriber Line Communications - A digital subscriber line (DSL) system that provides fast exit from an idle state is disclosed. The system includes a central office (CO) modem for communicating with a customer premises equipment (CPE) modem. Prior to entry into a low-power or idle state for the DSL link between the CO modem and the CPE modem, seamless rate adaptation is performed in order to improve the operating margin from that used in full-on operation, for example by selecting a reduced data rate. Transmission parameters, including data rate, and bits and gains, and corresponding to the improved operating margin are stored at the modems. Upon executing short initialization to return from the idle state, the stored transmission parameters are more likely to be adequate to meet current channel conditions, so the exchange of transmission parameters during short initialization is more likely to be avoided. | 01-22-2009 |
| 20090022215 | MODEM - A modem includes a modulation/demodulation function module, a hub function module, and at least one storage module. The storage module and the modulation/demodulation function module are connected to the hub function module, respectively. By adding one or more storage modules in to the modem, the invention enables mass storage of data to be provided at the modem, and thereby provides convenience to the user. | 01-22-2009 |
| 20090022216 | SPECTRALLY CONSTRAINED IMPULSE SHORTENING FILTER FOR A DISCRETE MULTI-TONE RECEIVER - A channel in a multiple carrier communication system is equalized by computing a target spectral response, shortening the impulse response of the channel so that a significant part of an energy of the impulse response is confined to a region that is shorter than a target length and filtering the signal based on the target spectral response. | 01-22-2009 |
| 20090034592 | Crosstalk Cancellation in Digital Subscriber Line Communications - A digital subscriber line (DSL) modem that has a canceller digital filter for cancelling crosstalk and RF interference in a received DSL signal is disclosed. The modem includes common-mode sense circuitry and also differential-mode sense circuitry. Samples of the common-mode signal are acquired during a “quiet” period of initialization of the DSL modem, and samples of the differential-mode signal are acquired during live transmission of a DSL signal. An estimate of an autocorrelation function is obtained from the common-mode samples, and a cross-correlation of the common-mode samples and differential-mode samples is also estimated. Digital filter coefficients are derived from these estimates, based on the assumption that the common-mode samples acquired during the “quiet” phase represent crosstalk and RF interference present during differential-mode communications. The digital filter coefficients can also be updated during showtime of the DSL link, using an expanded number of samples of the common-mode and differential-mode signals. | 02-05-2009 |
| 20090034593 | Data transmission rate adjustment system and method thereof - A data transmission rate adjustment system and method thereof comprise a driving module and a control module. The driving module performs a predetermined mathematical calculation based on a transmission rate request to generate a divisor. The control module then performs a division that divides a reference frequency by the divisor to generate a first transmission rate so that a data receiving terminal can receive data sent from a data sending terminal through the driving module based on the first transmission rate. The driving module monitors a transmission error rate of the data received by the data receiving terminal. If the transmission error rate exceeds a predetermined value, the divisor is automatically adjusted to generate a second transmission rate. The second transmission rate is also provided to replace the first transmission rate. | 02-05-2009 |
| 20090034594 | Keeping modems online upon N+1 switchover in cable modem termination systems - According to a first aspect, in a time period after a line card switchover, a CMTS router makes each ranging opportunity in a bandwidth allocation map effectively wider by padding mute areas, which no modem can use, before and after a ranging opportunity. This is to keep a ranging packet of one modem from colliding with transmissions from other modems that may have incorrect timing offset after a switchover. According to a second aspect, the CMTS router sends a modem affected by a switchover one or more unsolicited requests to adjust its timing offset in an effort to keep the modem from going offline. | 02-05-2009 |
| 20090034595 | DATA COUPLER - A data coupler includes an antenna substrate that is not electrically connected in a DC arrangement to an electric power line, is arranged adjacent to the electric power line, and is connected to a modem. A resonant circuit including an inductance element and a capacitance element is provided in the antenna substrate. In the resonant circuit, the inductance element is magnetically coupled to the electric power line. The resonant circuit transmits a radio-frequency signal superimposed on the electric power line to the modem. The resonant circuit also transmits a transmission signal from the modem to the electric power line. | 02-05-2009 |
| 20090041103 | METHOD AND DEVICE FOR PERFORMING COMMUNICATION IN DIGITAL SUBSCRIBER LINE - A method and transmitter receiver sets are used to perform communication in digital subscriber line technology. The method includes: acquiring communication performance parameter; the first transmitter receiver set and the second transmitter receiver set using the predetermined communication standard to perform communication when the communication performance parameter is equal to the predetermined value or greater than the predetermined value, the predetermined communication standard is respectively set in the first transmitter receiver set and the second transmitter receiver set. The bit table and the gain table predetermined are respectively stored in the first transmitter receiver set and the second transmitter receiver set. According to the method, a rapid switch to the bit table and the gain table predetermined using simple message or enquiry answer mechanism may be ensured when great wideband noise exists. There is no need of interchanging the bit table and the gain table when using this method. | 02-12-2009 |
| 20090046769 | METHOD AND APPARATUS FOR REDUCING SIGNAL PROCESSING REQUIREMENTS FOR TRANSMITTING PACKET-BASED DATA - A modem and method for operating same. A receiver circuit of the modem is coupled to receive a continuous analog signal from a communication channel. This analog signal includes both packet and idle information. The receiver circuit monitors the analog signal to detect the presence of idle information. Upon detecting idle information, the receiver circuit enters a standby mode in which the processing requirements of the receiver circuit are reduced. A burst mode protocol is also provided, in which packets of digital information are modulated by a transmitter circuit the modem, thereby converting the packets of digital information into analog signal bursts of discrete duration. These analog signal bursts are transmitted from the transmitter circuit to a telephone line. However, the transmitter circuit does not generate any signals between the analog signal bursts. A receiver circuit monitors the telephone line to detect the analog signal bursts. Upon detecting the presence of the analog signal bursts on the telephone line, the receiver circuit demodulates the analog signal bursts using full processing capabilities of the receiver circuit. However, upon detecting the absence of the analog signal bursts on the telephone line, the demodulating function of the receiver circuit is disabled. The burst mode protocol enables multi-drop and multi-cast operation, as well as reducing required DSP resources. | 02-19-2009 |
| 20090046770 | Method and Apparatus for Avoiding False Initialization of XDSL Transceivers - The present invention discloses a method for avoiding false initialization of xDSL transceivers. Prior to the initialization of xDSL transceivers, the method includes: by the transmitting port of a first xDSL transceiver, sending a message about the transmitting port to the corresponding receiving port of a second xDSL transceiver; by the receiving port of the second xDSL transceiver, returning a response message to the transmitting port of the first xDSL transceiver according to the received message; by the first xDSL transceiver, judging the response message received by the transmitting port, and, if the received message has a certain relationship with the message sent by the transmitting port of the first xDSL transceiver, proceeding with the subsequent initialization process; otherwise, quitting the initialization process of the transmitting port. The method of the present invention prevents the xDSL transceiver or its ports from entering the false initialization state. | 02-19-2009 |
| 20090060013 | OPTIMIZING PRECODER SETTINGS USING AVERAGE SINR REPORTS FOR GROUPS OF TONES - Techniques are disclosed for compensating for crosstalk using adaptation of data signals transmitted over respective channels of a communication network. In one example, a method comprises the following steps. Data is transmitted to a communication network device via a communication line during a sequence of periods. For each period of the sequence of periods, a separate value of a measure of crosstalk that was measured at the communication network device is received, each value being an average of measurements at the device of measures of crosstalk for a plurality of communication network signal subcarriers. For each individual signal subcarrier of the plurality, a matrix is updated based on the received values, the matrix being configured to precode data transmissions to the communication network device over the individual signal subcarrier. The communication network may be a DSL system, the signal subcarriers may be DSL tones, and the measure of crosstalk may be a SINR value. | 03-05-2009 |
| 20090074041 | ELECTRONIC SYNCHRONOUS/ASYNCHRONOUS TRANSCEIVER DEVICE FOR POWER LINE COMMUNICATION NETWORKS - An electronic synchronous/asynchronous transceiver device for power line communication networks is integrated into a single chip and operates from a single supply voltage. The transceiver device includes: at least an internal register that is programmable through a synchronous serial interface; at least a line driver for a two-way network communication over power lines implemented by a single ended power amplifier with direct accessible input and output lines that is part of a tunable active filter for the transmission path; and at least a couple of linear regulators for powering with different voltage levels different kind of external controllers linked to the transceiver device. | 03-19-2009 |
| 20090080505 | RANGING AND ROUND TRIP DELAY TIMING ADJUSTMENT IN A MULTI-POINT TO POINT BIDIRECTIONAL COMMUNICATION SYSTEM - Systems and methods for ranging adjustments are provided. In one embodiment, a remote service unit comprises: a transceiver communicatively coupled with a host in a multi-point to point configuration, the transceiver configured to communicate with the host via an OFDM waveform; and a multi-carrier modem coupled to the transceiver and configured to demodulate downstream information data from the OFDM waveform, the multi-carrier modem further configured to modulate upstream information data onto the OFDM waveform. The multi-carrier modem modulates upstream information data onto distinct subcarriers of the OFDM waveform, the multi-carrier modem synchronized with the host so that upstream OFDM signals transmitted by the transceiver and other upstream OFDM signals received at the host unit combine to a unified OFDM waveform. The multi-carrier modem adjusts a round trip path delay between the remote service unit and the host based on a path delay correction received from the host unit. | 03-26-2009 |
| 20090086798 | Low Power State for DSL System and Devices - Embodiments related to a power-saving state in DSL systems and devices are described and depicted. | 04-02-2009 |
| 20090086799 | DUAL-BAND LINE INTERFACE CIRCUIT CAPABLE OF MULTI-BAND COMMUNICATION - In an embodiment, a DSL communication device comprising a line interface circuit is disclosed. The line interface circuit includes a hybrid circuit to interface the communication device to a communication line, a lowpass transmit filter to pass signals in a first frequency band, and a highpass transmit filter to pass signals in a second frequency band, where the second frequency band is higher in frequency than the first frequency band. The outputs of the highpass and lowpass filters are coupled in parallel to the communication line. The lowpass and highpass filters as well as the low and highpass transformers are optimized for their frequency bands. Further, the edges of the low and high frequency bands are sufficiently separated to reduce interference from the other frequency band. These factors, in part, allow a multiple tone communication device to be capable of operating in multiple modes of operation with multiple DSL varieties. | 04-02-2009 |
| 20090086800 | ADAPTIVE FEC CODEWORD MANAGEMENT - Adaptive FEC coding is used to adjust the codeword composition of FEC codewords in a communication system. A codeword composition ratio may be adjusted in response to variance of a measured transmission error value from a target transmission error value in the system. The codeword composition ratio may be any quantity or value that represents the relation between the payload and parity bytes in the applicable FEC coding scheme. Adjustment of the codeword composition ratio may be adjusting parameters such as the N, K and/or R values in ADSL1 systems or the INP and/or maximum interleaving delay values in ADSL2 systems. A controller may be used to monitor, analyze and adjust the various values used in adaptively managing FEC coding. The present invention may be implemented in a transmission system in which a transmitter transmits data to a receiver via a transmission channel, such as a DSL system. | 04-02-2009 |
| 20090103596 | IF INTERFACE - Systems, devices, and methods may be provided for communicating telemetry signals between a satellite modem and transceiver over an IF receive link. In an exemplary embodiment, a communication system comprises a modem, a transceiver, an IF receive communication link coupling the modem and the transceiver and configured to allow IF communication between the modem and the transceiver, and a transceiver interface module and a modem interface module, wherein the modules are configured to allow telemetry communication between the modem and the transceiver over the IF receive communication link. | 04-23-2009 |
| 20090103597 | WIRELESS MODEM SYSTEM AND METHOD FOR CONNECTING TO COMMUNICATION NETWORK USING THE SAME - A wireless modem connection apparatus including a connection unit for connecting a first and second modem and to a portable computer; and a control unit for detecting radio wave reception strength of each of first and second communication networks connected through the first and second modems and setting an operation mode of each of the first and second modems and depending on the radio wave reception strength, whereby a power limit of a USB interface is not exceeded even when both a wireless modem for a CDMA communication network and a wireless modem for a WiBro communication modem are simultaneously connected to a PC. | 04-23-2009 |
| 20090110039 | Bus interface unit for interposing in a two-wire current loop, as well as a transducer, position controller and analog input and output module with such a bus interface unit - A bus interface unit is provided for intermediate switching in a two-wire current loop, wherein the bus interface unit has a transformer for potential-free decoupling of an alternating current signal modulated with digital receive data and/or for coupling in of an alternating current signal to be modulated with digital send data. The alternating current signal is modulated onto a direct current signal of a two-wire current loop. The bus interface unit has a bidirectional modem unit connected on the secondary side to the transformer for output of the receive data on a data bus and for input of the send data from the data bus. The transformer has two primary windings, which are interconnected such that the magnetic fields generated by the two-wire loop current flowing through it cancel each other out. A lowpass and/or a highpass filter for the alternating current signal is connected upstream from the at least one primary winding. | 04-30-2009 |
| 20090122845 | Hybrid circuit without inductors - A hybrid circuit without inductors is provided. Embodiments can be used in high-speed communication devices, including Cable modem and Digital Subscriber Line (DSL) devices. In particular, embodiments can be used in Very High Speed DSL (VDSL) devices. Embodiments provide a cheap and compact solution to the echo rejection problem in high-speed communication devices. Furthermore, embodiments perform at least comparably to conventional solutions with respect to key performance measures. | 05-14-2009 |
| 20090122846 | ENHANCED CHANNEL CHANGING WITHIN MULTI-CHANNEL COMMUNICATION SYSTEMS - Enhanced channel changing within multi-channel communication systems. A CMTS directs channel changing of a CM, sometimes between upstream data bursts. Logical channels, part of a single frequency channel, may be used, and the channel changing may be performed between those logical channels. Multiple upstream burst profiles and/or modulation densities may be used providing high degrees of robustness, fidelity, and throughput and allowing great channel flexibility. A CM may be switched between channels without losing transmitter capability. Even if some throughput rate may be sacrificed during the channel changing, the CM will still be able to continue data throughput. Then, the new channel may then undergo the initialization and ranging processes thereby enabling greater throughput on that new channel. After undergoing the initialization and ranging processes, the new channel will then be a fully equivalent member of the CM communication system. | 05-14-2009 |
| 20090122847 | Antenna Configurations for Compact Device Wireless Communication - A wireless communication device is configured to provide wireless communication to a host device when disposed in a mated position with the host device. The wireless communication device includes a transceiver, a controller in communication with the transceiver, and a modem in communication with the controller. The wireless communication device further includes a printed circuit board (PCB) having a first inductor loop, and an antenna having second inductor loop inductively coupled with the first inductor loop. | 05-14-2009 |
| 20090141784 | CABLE MODEM AND DATA RECEIVING METHOD THEREOF - Disclosed are a cable modem and a data receiving method thereof. The cable modem includes a downlink channel retrieval processing unit to retrieve a downlink channel, receive an entire channel information message through the retrieved downlink channel, and receive a broadcasting supplementary data message when the entire information message is valid; a channel information processing unit to receive broadcasting supplementary data using the broadcasting supplementary data message; an uplink channel retrieval processing unit to retrieve an uplink channel using the entire channel information message; and a channel information managing unit to store and manage main data receiving channels capable of receiving the entire channel information message and the broadcasting supplementary data. | 06-04-2009 |
| 20090154537 | Frequency Selection Cable Reflector - An apparatus for use in a cable system comprises a first port for use in coupling to a portion of a cable network for receiving an upstream signal having a frequency spectrum including a first frequency band; and a reflector for reflecting the received upstream signal back downstream via the first port; wherein the first frequency band is different from those frequency bands used by a head-end of the cable network for Internet communications. | 06-18-2009 |
| 20090154538 | METHOD OF ALLOCATING UPSTREAM BANDWIDTH - A cable modem termination system receives a bandwidth request message, and collects information on the basis of the bandwidth request message. Then, time bandwidth size information is generated on the basis of the bandwidth request message and the collected information, and a bandwidth allocation message is generated on the basis of the collected information and the time bandwidth size information. Accordingly, a cable modem termination system can effectively receive data transmitted from a cable modem. | 06-18-2009 |
| 20090175324 | DYNAMIC INTERFERENCE CONTROL IN A WIRELESS COMMUNICATION NETWORK - A method and apparatus for dynamic interference management is disclosed. A frequency channel is partitioned into a plurality of groups. Two or more groups are assigned weights reflecting degrees of disadvantage of a node. Each group is further partitioned into a plurality of tones. A node experiencing interference determines a group, selects a tone within the group, and transmits a wireless signal using the selected tone. A receiving node receives a plurality of tones including the selected tone, identifies active tones from the received tones, and determines a response based on the weights of the active tones. | 07-09-2009 |
| 20090185605 | SEAMLESS CHANGE OF DEPTH OF A GENERAL CONVOLUTIONAL INTERLEAVER DURING TRANSMISSION WITHOUT LOSS OF DATA - Methods and communication systems are presented, in which impulse noise is monitored on a communication channel, and an interleaver depth is adjusted according to the monitored impulse noise without interrupting communication service. | 07-23-2009 |
| 20090185606 | METHOD AND SYSTEM FOR SELECTING AN OPERATION PROFILE - The invention provides a method and system for selecting an operation profile, which belongs to the field of network communication. In order to solve the problem of the selected operation profile being unsuitable for the broad bandwidth and traffic in the prior art, the invention provides a method for selecting an operation profile, comprising: obtaining channel information of a channel; selecting the operation profile according to the channel information and a predetermined selection rule. The invention also provides a system for selecting an operation profile comprising a channel information obtaining module and a profile selecting module. With the technical solution of the invention, it may select a suitable operation profile self-adaptively according to the actual channel condition. | 07-23-2009 |
| 20090190636 | Method and apparatus for managing XDSL pseudo links - A transceiver having shared and discrete components forming a transmit path and a receive path configured to couple to a subscriber line for establishing a communication channel with a remote transceiver. The transceiver comprises a pseudo link manager coupled between the transmit and receive path components to manage pseudo links on the subscriber line prior to entry into a session with the remote transceiver. The pseudo link manager includes: a line monitor and a disruptor. The line monitor monitors the subscriber line, prior to initiating a session, for a received communication signal indicative of a pre-existing session on the remote transceiver. The disruptor transmits a disruptor signal over the subscriber line to the remote transceiver responsive to the detection by the monitor of the received communication signal; thereby disrupting the remote transmitter's pre-existing session and allowing a new session to be established with the remote transceiver. | 07-30-2009 |
| 20090190637 | DUAL MODE TERMINAL AND METHOD FOR PROCESSING DATA SERVICE THEREOF - A dual mode terminal for simultaneously processing data services using controllers, and a method for processing the data services in the dual mode terminal is provided. The method includes processing a 1st data service in at least one of a 1st controller including an application and a 1st data protocol stack and a 2nd controller including a 2nd data protocol stack, inputting a request for processing a 2nd data service during the processing of the 1st data service, and processing the 2nd data service in another controller comprising at least one of the 1st controller and the 2nd controller, which does not process the 1st data service. | 07-30-2009 |
| 20090190638 | Automatic Downstream Calibration - Embodiments of the invention provide a method for auto calibration with fix and stable power wide band noise at the cable modem input without any need to change input power by using PHY back-off variation at the ADC input. The wide band tuner's IF VGA calibration is accomplished by freezing RF agcs at specific state and back off variation of the ADC input. | 07-30-2009 |
| 20090190639 | Multi-mode I/O circuitry supporting low interference signaling schemes for high speed digital interfaces - A multi-mode I/O circuit or cell ( | 07-30-2009 |
| 20090201976 | SYSTEM AND METHOD FOR IMPROVING DSL PERFORMANCE - A system and method is described for determining a condition of a communication line, such as the absence of a filter device on a digital subscriber line (DSL). A first signal characterized by a high upstream power is activated over the line, and a first set of parameters associated with the communication line is obtained. A second signal characterized by a low upstream power is activated, and a second set of parameters associated with the communication line is obtained. Comparison of first and second sets of parameters is indicative of a condition of the connection and presences or absence of a DSL filter on the communication line. | 08-13-2009 |
| 20090219979 | System and Method for Selectable Mask for LDSL - The present invention overcomes various problems by defining two upstream masks (U | 09-03-2009 |
| 20090238252 | Managing SSL Fixtures Over PLC Networks - Managing solid-state luminary (SSL) fixtures over power line carrier (PLC) networks is described herein. Devices provided in this description include SSL arrays, and converter circuitry coupled to drive the SSL arrays. More specifically, the converter circuitry is adapted to convert input voltage received from a power distribution network into a level suitable for driving the SSL arrays. The devices also include (PLC) modems for coupling to PLC networks, and coupled to the converter circuitry. In particular, the PLC modems interface the converter circuitry to the PLC networks. | 09-24-2009 |
| 20090238253 | System and Method for Communicating Information Using Time-and-Frequency-Bounded Base Functions - Systems and methods for efficiently conveying one or more broadband communication channels over a transmission medium. Communication is effected by transforming an incoming digital bit stream into a Time-and-Frequency-Bounded (TFB) information stream that includes a plurality of TFB packets. This transformation is accomplished through the use of a plurality of TFB basis functions. More particularly, digital bit streams carried on one or more incoming channels are in the form of binary “on” and “off” bits. These digital bits are converted into a plurality of TFB waveform components which together comprise a TFB packet. The conversion process maps each of respective incoming digital bits to a corresponding one of a group of TFB functions, such that a first group of n bits is mapped to a first TFB function, a second group is mapped to a second TFB function etc. in a cyclical fashion. | 09-24-2009 |
| 20090238254 | SYSTEM AND METHOD FOR ESTABLISHING A DIAGNOSTIC TRANSMISSION MODE AND COMMUNICATING OVER THE SAME - Upon detection of a trigger, such as the exceeding of an error threshold or the direction of a user, a diagnostic link system enters a diagnostic information transmission mode. This diagnostic information transmission mode allows for two modems to exchange diagnostic and/or test information that may not otherwise be exchangeable during normal communication. The diagnostic information transmission mode is initiated by transmitting an initiate diagnostic link mode message to a receiving modem accompanied by a cyclic redundancy check (CRC). The receiving modem determines, based on the CRC, if a robust communications channel is present. If a robust communications channel is present, the two modems can initiate exchange of the diagnostic and/or test information. Otherwise, the transmission power of the transmitting modem is increased and the initiate diagnostic link mode message re-transmitted to the receiving modem until the CRC is determined to be correct. | 09-24-2009 |
| 20090245334 | WALL CLOCK TIMER AND SYSTEM FOR GENERIC MODEM - A modem (for example, a modem within a cellular telephone) includes a plurality of Wireless Communication System Modem Sub-Circuits (WCSMSCs). Each WCSMSC receives a control signal generated by a corresponding one of a plurality of programmable timers. Each timer receives the same sequence of count values from a wall clock counter. A processor that controls overall modem operation can program a timer to generate a control pulse at a particular count time of the wall clock counter. The processor can also program a timer to generate a periodic control signal. The control signals output from the timers orchestrate when the various WCSMSCs start operating in the processing of a frame. By virtue of the programmability of the timers, the wall clock timer system is programmable to generate customized control signals such that frames of new and different protocols having arbitrary frame structures can be processed by the same modem/timer system. | 10-01-2009 |
| 20090245335 | SIGNAL PROCESSING SYSTEM, FILTER DEVICE AND SIGNAL PROCESSING METHOD - A multi-channel signal processing system includes a filter unit arranged at a signal transmitting end and a feedback unit arranged at a signal receiving end. The filter unit includes a signal synthesis unit and a filter, where the filter is adapted to filter crosstalk source signals of signals to be transmitted and perform subsequent filtering in accordance with received feedback information; the signal synthesis unit is adapted to receive the signals to be transmitted which are input and the crosstalk source signals filtered by the filter, and synthesize the signals to be transmitted and the crosstalk source signals; and the feedback unit is adapted to make a feedback to the filter in accordance with the received signals to be transmitted. | 10-01-2009 |
| 20090245336 | METHODS AND APPARATUS TO DETERMINE DIGITAL SUBSCRIBER LINE CONFIGURATION PARAMETERS - Example methods and apparatus to determine digital subscriber line (DSL) configuration parameters based on current and historical DSL performance characteristics are disclosed. A disclosed method includes obtaining first data representative of a current performance characteristic for a DSL modem, obtaining second data representative of a historical performance characteristic for the DSL modem, computing, at a maintenance server, a configuration parameter using the first and the second data, and reinitializing the DSL modem with the computed DSL configuration parameter when the computed configuration parameter has a value different from a previous value of the configuration parameter, wherein the DSL configuration parameter is computed prior to the reinitializing of the DSL modem. | 10-01-2009 |
| 20090252207 | METHODS AND APPARATUS TO TEST A CENTRAL OFFICE DIGITAL SUBSCRIBER LINE MODEM - Methods and apparatus to test a central office (CO) digital subscriber line (DSL) modem are disclosed. An example line termination module for a DSL access multiplexer (DSLAM) comprises a printed circuit board, a plurality of DSL terminal unit-central (DTU-C) modems implemented on the printed circuit board, a DSL terminal unit-remote (DTU-R) modem implemented on the printed circuit board to test the DTU-C modems, and a switch implemented on the printed circuit board to selectively couple the DTU-R modem to a tested one of the DTU-C modems or to a subscriber line. | 10-08-2009 |
| 20090252208 | Multi-Unit Power Line Communications System and Method - A power line communications system and method for multi-dwelling unit structures that provides broadband communications for internet access, voice over IP (VoIP), streaming video, audio, and other high speed applications and services is provided. One example embodiment includes a first communication device comprising an upstream port and a downstream port. The embodiment also includes a plurality of second communication devices with each second communication device configured to provide communications to user devices located on a different floors. The second communication devices may each include a low voltage power line port configured to communicate with a plurality of user devices via a low voltage power line and a second port for communicating with the first communication device. The first and second devices may also include router functionality. | 10-08-2009 |
| 20090252209 | Power Line Communication Networks and Methods employing Multiple Widebands - Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or from a communication node at two different frequencies simultaneously. These signals may be exchanged with different nodes and/or include independent data. In some embodiments, some of the wideband frequency ranges are above 30 MHz. | 10-08-2009 |
| 20090262791 | MULTIMODE DSL LINE DRIVER - A multimode DSL (digital subscriber line) line driver circuit is disclosed. The line driver circuit includes a switch network that enables the line driver circuit to be switched between multiple DSL communication configurations. Upon receipt of a mode control signal, the line driver circuit switches from a first DSL communication configuration to a second communication configuration. A DSL communication signal configured according to the second DSL communication configuration is received at the line driver circuit. The received DSL communication signal is amplified and/or filtered by the line driver circuit. The received DSL communication signal is transmitted from the line driver circuit. In one example implementation, the line driver circuit may be switched from an asymmetric digital subscriber line (ADSL) configuration to a very high speed digital subscriber line (VDSL) configuration, and may be switched from the VDSL configuration to the ADSL configuration. | 10-22-2009 |
| 20090268795 | METHOD, ARRANGEMENT AND DEVICE FOR TRANSMITTING INFORMATION BETWEEN A CENTRAL UNIT AND AT LEAST ONE DECENTRALIZED UNIT IN A COMMUNICATION NETWORK - The invention relates to a method, an arrangement and a device for transmitting information between a central unit (DSLAM) and at least one decentralised unit (TN | 10-29-2009 |
| 20090268796 | TRANSCEIVER ARCHITECTURE - A transmitter and a receiver apparatus suitable for a radio modem. According to an embodiment, the receiver apparatus comprises an input stage, an intermediate frequency stage and a demodulation and output stage. The input stage receives a signal from a transducer (e.g. a radio antenna) and generates a receive signal for the intermediate frequency stage. The intermediate frequency stage is configured to at least partially down-convert the receive signal for the demodulation and output stage. The demodulation stage is configured to demodulate the receive signal and generate a corresponding digital receive output signal. According to an embodiment, the transmitter apparatus comprises a transmitter signal modulation stage and a transmitter stage. | 10-29-2009 |
| 20090290625 | THERMAL MANAGEMENT FOR DATA MODULES - A data module operable in a wireless communication system is provided. The data module comprises a plurality of circuit components, one or more temperature sensors, and a thermal management unit. The temperature sensors are configured to determine the temperature of a corresponding circuit component. The thermal management unit is configured to determine one or more thermal characteristics of the data module based on the temperature determinations, and to generate one or more power control point signals indicating whether to adjust corresponding operating characteristics of a target component based on the determined thermal characteristics. | 11-26-2009 |
| 20090296793 | DUOBINARY TRANSCEIVER - The present invention relates to a duobinary transceiver. Specifically, the duobinary transceiver circuit proposed by the invention provides a new circuit configure of a precoder in a typical transceiver and a decoder in a typical receiver, based on a conventional transceiver including a transmitter, a transmission medium, and a receiver. | 12-03-2009 |
| 20090296794 | System and Method for Performing Ranging in a Cable Modem System - The present invention provides a system and method for performing ranging operations in a cable modem system. In accordance with embodiments of the present invention, transmission times, transmission power levels, transmission carrier frequencies, and pre-equalization parameters are adjusted to provide for robust operation of the cable modem system. More particularly, iterative processing steps are used to provide coefficient ordering, scaling, and aligning between the multiple cable modems and the cable modem termination system present in a cable modem system. | 12-03-2009 |
| 20090304055 | MESSENGER STRAND MOUNTED PICO-CELL RADIO - A messenger strand mounted low-power pico-cell radio, having its own environmentally controlled box, mounted on utility messenger strands, connects to the cable using the Internet protocol (IP) for back-haul, and has in-band monitor and control capability. These pico-cell radios also receive power through the same cable connection. The configuration control and monitoring is by independent discretely-managed internal mechanisms that can be remotely addressed. These internal mechanisms include the modem for backhaul, wireless radio transceiver(s), and the system management device for operation, administration, maintenance, and control. Such pico-cell radios help to provide wireless connectivity and coverage efficiently by reducing dark spots in wireless coverage. Distributing these radios in reasonable, close proximity enables wireless coverage in difficult terrains, where current high power systems fail. The radios disclosed herein eliminate the need and cost for additional power lines and IP connection lines, and are therefore easy to install and maintain. | 12-10-2009 |
| 20090304056 | Signal suspension and resumption in DSL systems - A method includes maintaining temporally parallel DSL data communication sessions with DSL modems of a group via a set of lines. The method includes, in response to substantially stopping to receive DSL communications from one of the DSL modems via one of the lines, transmitting a substantially reduced average power to the one of the lines and monitoring the one of the lines to determine whether DSL communications have restarted being received from the one of the DSL modems. The method also includes resuming the maintaining of the temporally parallel DSL communication sessions in response to the monitoring determining that DSL communications have restarted being received from the one of the DSL modems. | 12-10-2009 |
| 20090304057 | SYSTEM AND METHOD OF AN IN-BAND MODEM FOR DATA COMMUNICATIONS OVER DIGITAL WIRELESS COMMUNICATION NETWORKS - A system is provided for transmitting information through a speech codec (in-band) such as found in a wireless communication network. A modulator transforms the data into a spectrally noise-like signal based on the mapping of a shaped pulse to predetermined positions within a modulation frame, and the signal is efficiently encoded by a speech codec. A synchronization sequence provides modulation frame timing at the receiver and is detected based on analysis of a correlation peak pattern. A request/response protocol provides reliable transfer of data using message redundancy, retransmission, and/or robust modulation modes dependent on the communication channel conditions. | 12-10-2009 |
| 20090304058 | SYSTEM AND METHOD OF AN IN-BAND MODEM FOR DATA COMMUNICATIONS OVER DIGITAL WIRELESS COMMUNICATION NETWORKS - A system is provided for transmitting information through a speech codec (in-band) such as found in a wireless communication network. A modulator transforms the data into a spectrally noise-like signal based on the mapping of a shaped pulse to predetermined positions within a modulation frame, and the signal is efficiently encoded by a speech codec. A synchronization sequence provides modulation frame timing at the receiver and is detected based on analysis of a correlation peak pattern. A request/response protocol provides reliable transfer of data using message redundancy, retransmission, and/or robust modulation modes dependent on the communication channel conditions. | 12-10-2009 |
| 20090304059 | CONNECTING CABLE LENGTH DETECTOR - Disclosed are embodiments for determining the length of a connecting cable between a modem and a transceiver by measuring the propagation time of a signal along the connecting cable. A cable length signal is used to adjust the gain of the modem, that ensures that the transceiver circuit operates in the correct power range for both transmitting and receiving signals. | 12-10-2009 |
| 20090310658 | Systems and Methods for Positioning and Messaging of Reserved Tones for Peak-to-Average Ratio (PAR) Reduction in DSL Systems - Systems and methods for reducing the peak-to-average ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal which reduces the magnitude of peaks in the time-domain signal prior to transmission where the time-domain compensation signals use tones that are reserved for the purpose of reducing the PAR. The reservation of these reserved tones for PAR can be implemented by altering the typical startup procedures in a digital subscriber line (xDSL) system. The use of the reserved tones to reduce the PAR can be implemented using a low complexity algorithm or using an adaptive technique. | 12-17-2009 |
| 20090310659 | Adaptive Turbo Peak Mitigation for Peak-to-Average Ratio (PAR) Reduction Using Reserved Tones - Systems and methods for reducing the peak-to-average ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal which reduces the magnitude of peaks in the time-domain signal prior to transmission where the time-domain compensation signals use tones that are reserved for the purpose of reducing the PAR. The reservation of these reserved tones for PAR can be implemented by altering the typical startup procedures in a digital subscriber line (xDSL) system. The use of the reserved tones to reduce the PAR can be implemented using a low complexity algorithm or using an adaptive technique. | 12-17-2009 |
| 20090323787 | Method, Device, and System for Channel Estimation - A method for channel estimation includes: loading a combination of signals sent on other lines over a line of a channel; measuring a signal-to-noise ratio (SNR) of the loaded line; and calculating crosstalk channels of the loaded line according to a coefficient of the combination of signals sent on other lines and the measured SNR. Accordingly, a device and system for channel estimation are provided. The technical solution of the present invention may be used for relevant systems such as an x Digital Subscriber Line (xDSL) system. | 12-31-2009 |
| 20090323788 | SPLITTERLESS MULTICARRIER MODEM - A modem for use in Digital Subscriber Line communications transmits and receives data over the local subscriber loop in common with voice information over the loop, while avoiding the need for voice/data splitters. The modem responds to disruptions associated with “disturbance events” such as on-hook to off-hook transitions and the like by rapidly switching between pre-stored channel parameter control sets defining communications over the loop under varying conditions. In addition to changing parameter control sets responsive to a disturbance event, the modem may also change transmission power levels and other system parameters such as frequency domain equalizer characteristics. Further, provisions are made for reduced bandwidth communications under selected conditions. | 12-31-2009 |
| 20100002755 | Method and apparatus for a multi-tone modem - A multi-tone modem with shared and discrete components forming a transmit path and a receive path configured to couple to a wired communication medium to communicate at least one multi-tone modulated communication channel thereon. The modem includes a multi-tone modulator component and a configurable frequency up converter component. The multi-tone modulator component is configured for multi-tone modulation and demodulation of a transmitted and received communication channel at a base band frequency range. The configurable frequency up converter component is coupled to the multi-tone modulator to selectably up convert the frequency range of the transmitted base band signal from the multi-tone modulator to that of a selected communication band and down convert received signals from the selected communication band to the base band for demodulation by the multi-tone modulator. | 01-07-2010 |
| 20100027599 | Power Line Communications Adapter - A power line communications (PLC) adapter for connecting to a standard wall outlet and providing power to other electrical devices and connectivity to the PLC network. The adapter includes a PLC modem and a noise isolating filter which prevents high frequency noise from an attached electrical device from affecting the PLC modem and the PLC network. | 02-04-2010 |
| 20100027600 | METHOD OF TRANSMITTING DATA AND MODEM - A method, and corresponding modem, of transmitting data. The method including: modulating the data onto a plurality of carriers with different carrier frequencies, resulting in a transmission signal; notching predetermined frequency bands of the transmission signal, which predetermined frequency bands would otherwise disturb external transmissions; and boosting carriers that are adjacent to the predetermined frequency bands and that would be attenuated because of the notching. | 02-04-2010 |
| 20100027601 | Method and Apparatus for Controlling DSL Line Transmission Power - A method for controlling DSL transmission power includes: determining a group to which a line belongs, and selecting a representative line from each group to form a line model; obtaining a crosstalk model of the line model; obtaining Transmit Power Spectrum Density (TxPSD) of each representative line in the line model according to the crosstalk model, and converting the TxPSD into a spectrum control parameter; and enhancing the line rate according to the spectrum control parameter. An apparatus for controlling DSL transmission power is also disclosed. Through the method, the transmission power of the band that incurs serious line crosstalk is restricted, and the line that incurs serious crosstalk can achieve higher transmission rates. Therefore, the adverse impact from the crosstalk between xDSL lines is reduced, and the line works in the optimum state. | 02-04-2010 |
| 20100034245 | Method For Bit-Loading in a Multi-Tone DSL System - A method and processor in a multi-tone based multi-line transmission system such as a digital subscriber line system. The system includes a pre-processor, also referred to as a pre-coder. The processor iteratively determines an integer number of bits to be allocated before pre-processing. The determination is subject to transmit power constraints taking into account power changes on all lines due to the pre-processor and a required bit error rate. | 02-11-2010 |
| 20100040124 | MODEM UNIT AND MOBILE COMMUNICATION UNIT - A modem unit includes a first semiconductor die that includes a power management unit and an embedded flash memory. A mobile communication unit includes a modem unit residing on a first semiconductor die. The first semiconductor die also includes a power management unit and an embedded flash memory. | 02-18-2010 |
| 20100046592 | HIGH IMPEDANCE STATE FOR DIGITAL SUBSCRIBER LINE TRANSCEIVERS ON COPPER TWISTED PAIRS - The invention relates to methods and a high speed communication device that allow one of a plurality of high speed communication devices connected to a transmission line having a normal impedance to effectively receive data. | 02-25-2010 |
| 20100046593 | Methods and Apparatuses for Data Transmission - In an embodiment, a communication device is provided comprising transmit circuitry and crosstalk reduction circuitry. In an embodiment, the crosstalk reduction circuitry is configured to receive crosstalk information indicative of crosstalk between a plurality of communication connections for only a part of communication channels of said communication connections. | 02-25-2010 |
| 20100054314 | INITIALIZATION OF AND MODEM FOR AN OFDM DATA TRANSMISSION - A method and modem are provided for obtaining an optimized efficiency of an Orthogonal Frequency Division Multiplex (OFDM) data transmission, such as for power line communication, for example. The length or duration of a guard interval or cyclic prefix in an OFDM symbol is newly selected at each start-up of a modem while initializing or preparing the OFDM data transmission. The length of the guard interval can be given by the number of samples in a time-discrete representation, and the value of such number of samples that is retained for the subsequent data transmission can be selected from a plurality of pre-determined possibilities based on an evaluation of a channel quality of a communication channel including a physical line to which the modem is connected. Hence, the selected value depends on actual transmission conditions, and the optimization potential offered by a more flexible handling of system parameters is exploited to meet changing conditions on the physical line. | 03-04-2010 |
| 20100054315 | Apparatus and Method for Start-up in Communication System - A transceiver in a communication system and a start-up method thereof are provided. The transceiver comprises an auto-negotiation circuit, a timing recovery circuit, an interference cancellation circuit and an equalizer. The auto-negotiation circuit performs an auto-negotiation procedure to determine whether the transceiver operates as a master or slave transceiver. If the transceiver operates as a slave transceiver, it executes a first stage and a second stage during the start-up process. In the first stage, the transceiver performs channel estimation to generate a channel estimation value, presets the parameters of the equalizer according to the channel estimation value, and trains the timing recovery circuit and the equalizer; in the second stage, the transceiver trains the interference cancellation circuit. | 03-04-2010 |
| 20100061432 | REDUCED COST SAW-LESS CATV RF TUNER CIRCUIT FOR USE IN A CABLE MODEM - A novel reduced cost CATV RF tuner circuit that can serve as a replacement circuit for one based on a surface acoustic wave (SAW) filter. The tuner circuit is particularly suitable for use in cable modem systems adapted to implement the DOCSIS 2.0 specification which specifies single channel video reception. The invention replaces the traditional SAW filter functions of image rejection and channel selection with both analog and digital components and circuits. The image rejection function is performed by a combination of analog multiple filters. Digital filtering is then used to perform the channel selection operation. The analog based image reject filter can be constructed using relatively inexpensive passive components, while the digital channel selection filter can be implemented in software, firmware, gate array (FPGA) or ASIC. | 03-11-2010 |
| 20100061433 | METHOD FOR TRANSMITTING A SIGNAL VIA A POWER LINE NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for transmitting signals over a power line network, wherein within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each channel including a respective feeding port of at least one transmitter and the respective receiving port of the at least one transmitter and transmitter including at least two feeding ports. The method: determines a channel characteristic of each of the channels; applies a feeding port selection criterion based on the channel characteristic; and selects an excluded feeding port among the at least two feeding ports based on the feeding port selection criterion, wherein the excluded feeding port is not used during further communication. A corresponding power line communication modem can implement the method. | 03-11-2010 |
| 20100074312 | HIGH SPEED MULTIPLE USER MULTIPLE LOOP DSL SYSTEM - A high speed multiple user multiple-loop DSL system is described. In one embodiment, it includes a first DSL loop to carry DSL traffic to a first user and a second DSL loop to carry DSL traffic to a second user. A first junction connects the traffic of the first DSL loop to a third DSL loop, and a second junction connects the traffic of the second DSL loop to the third DSL loop. | 03-25-2010 |
| 20100080272 | Platform communication protocol - A host chipset heartbeat may be utilized, in some embodiments, to handle interrupts from external devices on a power efficient basis. The availability of the host chipset heartbeat may be signaled to external devices and those external devices may time their activities to a period of time when not only are resources available, but the assertion of the activity is advantageous because the host chipset is already transitioning from a lower power consumption state. | 04-01-2010 |
| 20100091825 | BURST PROCESSING MODEM - A burst processing modem. Implementations may include a receive side including a channelizer adapted to process a plurality of channels and write a plurality of frames to a receive RAM array. A receive frame state machine may be adapted to generate a timing signal using a burst time plan for the plurality of frames. A demodulator may be coupled with the receive RAM array and adapted to read from the receive RAM array only the one or more bursts from the plurality of frames indicated by the timing signal. A transmit side may include a modulator coupled with a transmit frame state machine, with a transmit RAM array, and a combiner bank. The combiner bank may read the modulated plurality of channels from the transmit RAM array and assemble a plurality of frames using a timing signal generated from a burst time plan by the transmit frame state machine. | 04-15-2010 |
| 20100103995 | Apparatus and method for controlling universal IC card in complex terminal - A complex terminal includes an apparatus for controlling a Universal IC Card (UICC). The apparatus is configured to obtain a control information through a UICC initialization and provide a corresponding communication modem with the control information. A communication modem can request a communication authority based on the control information and obtain the communication authority from a controller. A selector can connect the corresponding communication modem to the UICC while the controller provides the corresponding communication modem with the communication authority. | 04-29-2010 |
| 20100111149 | MULTIMODE MULTICARRIER MODEM SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 05-06-2010 |
| 20100111150 | Wireless Local Area Network (WLAN) Using Universal Frequency Translation Technology Including Multi-Phase Embodiments - Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal generator, a demodulation/modulation facilitation module, and a MAC interface. The WLAN receiver includes at least one universal frequency translation module that frequency down-converts a received EM signal. In embodiments, the UFT based receiver is configured in a multi-phase embodiment to reduce or eliminate re-radiation that is caused by DC offset. The WLAN transmitter includes at least one universal frequency translation module that frequency up-converts a baseband signal in preparation for transmission over the wireless LAN. In embodiments, the UFT based transmitter is configured in a differential and multi-phase embodiment to reduce carrier insertion and spectral growth. | 05-06-2010 |
| 20100124261 | METHOD FOR DETERMINATION OF BRIDGED TAPS ON A TRANSMISSION LINE - The present invention is directed to determining a length of at least one bridged tap on a transmission line. The invention includes estimating an Equivalent Working Length (EWL) associated with the transmission line using an H | 05-20-2010 |
| 20100128767 | Method and Device for Processing Data and Communication System Comprising Such Device - A method and a device for data processing perform the following steps: (i) data is sent from a first network component to an at least one second network component via at least two lines; and (ii) the first network component transmits a measurement tag via at least one line of the at least two lines. | 05-27-2010 |
| 20100142601 | DSL RING SIGNAL COMPATIBILITY - A method of detecting that a condition exists that adversely impacts a digital subscriber line service (DSL) over a telephone line shared by the DSL service and a telephone service. The method includes obtaining information regarding operation of the DSL service over a plurality of different time periods, comparing the information for a first of the plurality of time periods with the information for a second of the plurality of time periods, and determining the condition exists based on the comparison. | 06-10-2010 |
| 20100142602 | SYSTEMS AND METHODS FOR LOOP LENGTH AND BRIDGED TAP LENGTH DETERMINATION OF A TRANSMISSION LINE - Through the use of a least squares minimization concept, the loop length, the number of bridged taps and length of the bridged taps on a transmission line can be determined from readily available modem data. In particular, the loop length, the number of bridge taps and the length of bridged taps can be estimated by comparing a measured frequency domain channel impulse response of the transmission line to a model of a loop that is comprised of multiple sections and multiple bridge taps. | 06-10-2010 |
| 20100158085 | FEEDFORWARD RECEIVER AND METHOD FOR REDUCING INTER-SYMBOL INTERFERENCE BY USING JOINT SOFT VALUES - A feedforward receiver and method are described herein that address inter-symbol interference in received symbols by using an enhanced equalizer to generate joint soft values (joint information of a previous modem bit x′ and a modem bit x) and an enhanced decoder which uses the joint soft values and side information (bias about the previous modem bit x′) to output a more reliable information bit x. | 06-24-2010 |
| 20100158086 | CABLE MODEM AND METHOD OF PERFORMING CHANNEL BONDING USING DIGITAL UPCONVERTER - A cable modem is provided. The cable modem may include: a plurality of modulators to generate a plurality of pieces of digital data corresponding to a plurality of independent channels; a plurality of digital upconverters to up-convert a frequency of each of the plurality of pieces of digital data into a predetermined frequency; and a Radio Frequency (RF) processor to channel-bond outputs of the plurality of digital upconverters into at least one channel, and generate an analog output signal, the outputs having the predetermined frequency. | 06-24-2010 |
| 20100183060 | METHOD AND APPARATUS OF FREQUENCY OFFSET-FREE FRAME SYNCHRONIZATION FOR HIGH ORDER QAM SIGNALS IN MODEM APPARATUS - Provided is a method and apparatus for performing a frequency offset-free frame synchronization with respect to high order quadrature amplitude modulation (QAM) symbols in a modem apparatus. A method of performing a correlation-based frame synchronization using magnitudes of QAM symbols in a modem apparatus, may include: constructing a synchronization pattern using the magnitudes of the QAM symbols; sequentially calculating a magnitude of each of received signals based on a symbol unit to construct a received vector; and obtaining a frame synchronization based on a correlation between the received vector and the synchronization pattern. | 07-22-2010 |
| 20100183061 | Radio Communication Apparatus - There is provided a radio communication apparatus that performs communication in a plurality of different radio communication systems independently of one another and is capable of normally performing data communication with interference in the data communication avoided. The radio communication apparatus includes modems respectively corresponding to DECT communication and GSM communication respectively utilizing close frequency bands for transmitting/receiving data, and is configured so that communication time slots not used for time division multiplex domestic radio communication or for time division multiplex subscriber channel radio communication may be adjusted between the modems by a modern controller | 07-22-2010 |
| 20100183062 | METHOD AND APPARATUS FOR COMMUNICATING DATA OVER A DATA NETWORK - A method of provisioning an interface device ( | 07-22-2010 |
| 20100220773 | INDICATING AND DETECTING THE START OF SIGNAL TRANSMISSION EMPLOYING FREQUENCY DIVISION MULTIPLEXING - A modem for use with a subsea transmission line comprises a digital signal processor responsive to a succession of segments of a data signal to produce a respective set of orthogonal frequency division multiplexed signals and to transmit those signals as a burst on the transmission line, and to prepend the burst with a start signal comprising a cyclically time-varying signal envelope-modulated with a Gaussian waveform. The modem is also arranged to convert signals received from the transmission line into a succession of digital samples and to process those samples to obtain an indication of the peak of the Gaussian waveform whereby to provide a datum for decoding a received burst of OFDM signals. | 09-02-2010 |
| 20100220774 | LOW POWER UWB TRANSMITTER AND RECEIVER IN IMPULSE-BASED UWB COMMUNICATION SYSTEM AND METHOD FOR OPERATING THE SAME - Provided are an ultra wideband (UWB) system and a method for operating the same. The UWB system includes a baseband unit for modulating/demodulating an impulse data signal and generating a power management control signal using burst hopping information, and an RF transmitting/receiving unit for transmitting/receiving a wireless signal and alternating between power-on/off states according to the power management control signal generated from the baseband unit. The UWB system can reduce power consumption by applying power source to the RF transmitting/receiving unit only at a time interval in which an impulse signal having a short time period and constituting transmitting/receiving data exists. | 09-02-2010 |
| 20100220775 | Multicarrier Modulation Messaging for SNR Per Subchannel During Showtime Information - Upon detection of a trigger, such as the exceeding of an error threshold or the direction of a user, a diagnostic link system enters a diagnostic information transmission mode. This diagnostic information transmission mode allows for two modems to exchange diagnostic and/or test information that may not otherwise be exchangeable during normal communication. The diagnostic information transmission mode is initiated by transmitting an initiate diagnostic link mode message to a receiving modem accompanied by a cyclic redundancy check (CRC). The receiving modem determines, based on the CRC, if a robust communications channel is present. If a robust communications channel is present, the two modems can initiate exchange of the diagnostic and/or test information. Otherwise, the transmission power of the transmitting modem is increased and the initiate diagnostic link mode message re-transmitted to the receiving modem until the CRC is determined to be correct. | 09-02-2010 |
| 20100232486 | METHOD AND APPARATUS FOR REDUCING NOISE IN A COMMUNICATION SYSTEM - A system that incorporates teachings of the present disclosure may include, for example, a controller to: determine crosstalk coupling characteristics between a plurality of lines of a Digital Subscriber Line (DSL) system connected to a plurality of modems based on a transition between a full power mode and one or more other modes, and provide the determined crosstalk coupling characteristics to one or more of the plurality of modems for performance of at least one of pre-coding a transmitted signal and processing a received signal along a line of the plurality of lines, where the pre-coding and processing is performed based at least in part on the determined crosstalk coupling characteristics, and where the pre-coding of the transmitted signal and the processing of the received signal reduce effects of fluctuating crosstalk. Other embodiments are disclosed. | 09-16-2010 |
| 20100232487 | BIT RATE MATCHING SYSTEM AND METHOD - This relates to a method for determining a receive bit rate over a data link. The method includes setting a receive bit rate to an initial bit rate. A bit pattern over the data link is detected using the initial bit rate. A determination is made as to whether the detected bit pattern matches one of a plurality of known bit patterns corresponding to fractional bit rates. If the detected bit pattern does not match one of the plurality of known bit patterns, then a determination is made as to whether the received data includes a framing error. If it does, then the receive bit rate is lowered to a low detection bit rate that is lower than the fractional bit rates corresponding to the plurality of known bit patterns. | 09-16-2010 |
| 20100238987 | METHOD AND ARRANGEMENT IN A DIGITAL SUBSCRIBER LINE SYSTEM - The present invention relates to arrangements and methods in a Digital Subscriber Line (DSL) system. | 09-23-2010 |
| 20100238988 | SYSTEM AND METHOD FOR CONTROLLING WIRELESS NETWORK ACCESS INFORMATION IN USING REMOVABLE EXTERNAL MODEM - Disclosed are a system and a method for controlling wireless network access information in using a removable external modem. These relates to a case where a removable external modem among devices for a wireless access server (e.g. WiMAX) is connected with a host customer electronics (CE) device so as to be used. Particularly, in a case where the removable external modem, which has no information for accessing a specific network, e.g. operator Lock, a roaming list, a credential, operator ID, etc., when it is introduced, receives network access information through initial access, registration, and provisioning step, and is connected to other device to be used, the modem can be directly connected to a network of an existing registered network communication provider without a separate supplementary registration or a provisioning step. | 09-23-2010 |
| 20100246648 | External AC-DC Coupling for Communication Interfaces - A power line communication device comprises a plurality of transformers in series. These transformers are used to increase the voltage of a digitally encoded signal in a stepwise fashion prior to being coupled into a power line. While a transmit path includes at least a first transformer and a second transformer in series, a receive path may include only one of these two transformers. For example a receive path may include only the first transformer, or include the first transformer and a third transformer. The net ratio of voltage increase and decrease may be different in the transmit and receive paths. Additionally, the communication interface can be disposed within an AC/DC converter or distributed among an AC/DC converter and an appliance attached thereto. | 09-30-2010 |
| 20100260247 | DIGITAL INTERCOM NETWORK OVER DC-POWERED MICROPHONE CABLE - A digital intercom system provides DC power and multi-channel bidirectional digital communications over existing cabling such as microphone cabling used in analog intercom networks. Three or more conductors in the cabling are used for both transmitting and receiving digital signals and carrying DC power. The digital intercom system includes digital user stations and a digital master station which can be used to retrofit an existing analog intercom network or deployed in a new network. User stations can be connected to the cabling via drop cables which do not use active electronic components. The master station routes digital audio and control data packets in three or more channels based on respective network addresses of the user stations to provide point-to-point, point-to-multi-point, and party line communications among the user stations. Sessions and groups can be configured which define talker and listener user stations. | 10-14-2010 |
| 20100266000 | DISCRETE SPURIOUS LEAKAGE CANCELLATION FOR USE IN A CABLE MODEM - A novel apparatus for and method of discrete spurious frequency leakage cancellation for use in a cable modem. The spurious leakage cancellation mechanism is particularly suitable for use in cable modem systems adapted to implement the DOCSIS 2.0 specification which specifies both downstream and upstream channels. In one embodiment, the spurious emission cancellation mechanism cancels the spurious emissions by first creating a replica of the aggressor clock signal having the same amplitude but 180 degree phase shift as the spurious signal. The phase shifted spurious replica is added to the original spurious signal thus cancelling the spurious signal. In another embodiment, an RF switch is used to couple the upstream path signal to the CATV cable only during transmission bursts. In between transmission bursts, the upstream signal is disconnected from the CATV cable. This embodiment takes advantage of the less stringent spurious requirements in the DOCSIS 2.0 specification for transmission bursts. In between transmission bursts, when stricter spurious requirements apply, the upstream signal is disconnected from the CATV cable. | 10-21-2010 |
| 20100266001 | METHOD FOR TRANSMITTING DATA OVER VOICE CHANNEL - The present invention features a digital data communications system for transmitting a voice or digital data between a terminal mounted in a vehicle and an external server, including a MDOV modem configured to modulate the digital data to include frequency characteristics of vowel and consonant of the voice; and a transceive module configured to transceive the modulated signal through a voice channel. | 10-21-2010 |
| 20100272164 | Method and apparatus for optimizing dynamic range in DMT modems - A digital subscriber line ‘XDSL’ communication system for optimizing dynamic range in digital multi-tone modulated (DMT) modems. The system comprises a digital subscriber line access multiplexer (DSLAM) and at least one modem. The DSLAM distributes a near end crosstalk (NEXT) model of anticipated disturbance from neighboring disturber subscriber lines. The at least one modem has shared and discrete components forming a transmit path and a receive path. The at least one modem couples to the DSLAM and is responsive to the distributed NEXT model there from to adjust a dynamic range of an analog portion of the receive path to accommodate the anticipated disturbance modeled in the distributed NEXT model. | 10-28-2010 |
| 20100272165 | METHODS AND SYSTEMS FOR PROVIDING AN ASYMMETRIC ETHERNET SERVICE - Methods and systems for providing asymmetric Ethernet service are disclosed. An example method to provide asymmetric Ethernet service to a subscriber includes communicating at least a first portion of a subscriber data communication via a first asymmetric Ethernet connection between a first asymmetric Ethernet modem at a point of service and a second asymmetric Ethernet modem at a service provider location, communicating at least a second portion of the subscriber data communication via a second asymmetric Ethernet connection between a third asymmetric Ethernet modem at the point of service and a fourth asymmetric Ethernet modem at the service provider location, wherein the first and second asymmetric Ethernet connections provide a faster aggregated download bandwidth than an aggregated upload bandwidth to provide an asymmetric Ethernet connection between the point of service and the service provider location, and aggregating the first and second portions of the subscriber data communication for transmission to an Ethernet data network. | 10-28-2010 |
| 20100278223 | Multi-Wideband Communications over Power Lines - Systems and methods for communicating over a power line are configured to substantially simultaneously communicate over a plurality of wideband frequency ranges. Signals may be communicated two or from a communication node at two different frequencies simultaneously. These signals may be exchanged with different nodes and/or include independent data. In some embodiments, some of the wideband frequency ranges are above 30 MHz. | 11-04-2010 |
| 20100278224 | WIFI INTERFACE TO DIALUP MODEM - A device and method support dialup modem access over a wireless local area and/or personal area network such as, for example, an IEEE 802.11 a/b/g/n and/or IEEE 802.15.3a network. A representative embodiment permits a user of a conventional Internet web browser application to access a dialup information provider via a switched telephone network, using the wireless network. A terminal adapter comprising a wired network interface and a wireless network interface receives messaging containing dialing information from a user of a personal computer, via the wireless network. The terminal adapter establishes a dialup connection to the information provider, and exchanges information between the personal computer and the information provider via the wired and wireless interfaces. Information used for dialing may be contained within a universal resource locator received by the terminal adapter, or may be received as a result of user input on a webpage type user interface displayed by the browser application using information sent by the terminal adapter. | 11-04-2010 |
| 20100284453 | METHOD AND MODEM FOR SUBSEA POWER LINE COMMUNICATION - In a method and a modem ( | 11-11-2010 |
| 20100290510 | MULTIMODE MULTICARRIER MODEM SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 11-18-2010 |
| 20100296559 | MULTI-CHANNEL TRANSCEIVER MODULE CARD - In one embodiment, a networking device may include a network port and be configured to receive a transceiver module card in the network port. The networking device may detect whether the transceiver module card is a single channel card or a multi-channel card, where the single channel card includes a single transceiver module and the multi-channel card includes multiple transceiver modules. The networking device may transmit data to the transceiver card either as a single channel de-multiplexed over multiple lanes or as multiple independent channels corresponding to the multiple lanes based on whether the transceiver module card is the single channel card or the multi-channel card. The networking device may transmit data over each of the lanes at one data rate regardless whether of the transceiver module card is the single channel card or the multi-channel card. | 11-25-2010 |
| 20100296560 | Station communications over electrical transmission lines - A communication device for use on high voltage power lines provides for broadband communications over such high voltage power lines. The device has an impedance matching circuit configured to connect at one end to a high voltage line arrester of the high voltage power line, as well as a limiter circuit coupled to the other end of the impedance matching circuit to limit a voltage associated with a broadband signal. A noise blanker circuit is coupled at one end to this other end of the impedance matching circuit and is configured to inhibit presentation of a time delayed incoming signal to the broadband modem upon detection of electrical noise. The communication device can further comprise link aggregation and/or a differential circuit for providing non-inverted and inverted broadband signals for both reception and transmission. A corresponding method of communicating broadband information over a high voltage power line is disclosed. | 11-25-2010 |
| 20100296561 | WIRELESS MODEM AND NOISE CANCELLATION METHOD FOR THE SAME - A wireless modem and noise cancellation method for the same for noise cancellation effectively cancels a noise signal induced from a device to which the wireless modem is connected. A primary antenna receives a radio signal that includes a first noise signal coming from a device to which the wireless modem is connected; a secondary antenna receives a second noise signal from the connected device; a noise signal adjuster for adjusting the second noise signal received by the secondary antenna using a correlation parameter between noise signals received by the primary antenna and the secondary antenna; and a noise remover subtracts the noise signal adjusted by the noise signal adjuster from the radio signal received by the primary antenna. | 11-25-2010 |
| 20100303136 | Channel Estimation in a Multi-Channel Communication System Using Pilot Signals Having Quasi-Orthogonal Subpilots - An access node of a communication system comprises a plurality of transmitters adapted for communication with at least one receiver. The access node is operative to transmit pilot signals from respective associated ones of the transmitters, to estimate channel coefficients between the transmitters and the receiver, and to utilize the estimated channel coefficients to control at least one data signal sent by at least one of the transmitters. The pilot signals are partitioned into a plurality of sets of pilot signals such that pilot signals from the same set have respective subpilots that are orthogonal to one another and pilot signals from different sets have respective subpilots that are not orthogonal to one another but are instead quasi-orthogonal to one another. The pilot signals are associated with the respective transmitters based on the partitioning of the pilot signals into sets. | 12-02-2010 |
| 20100303137 | CABLE MODEM AND CONNECTION RETAINING METHOD - A cable modem in communication with a cable modem termination system (CMTS) scans and tries to lock onto a primary channel, tries to receive a media access control domain description (MDD) message includes subsidiary channels from the CMTS if the primary channel is locked, and tries to lock onto the subsidiary channels in the received MDD message. The cable modem further retains the cable modem to work with the DOCSIS 3.0 standard upon the condition that the primary channel and the subsidiary channels are all locked or retains the cable modem to work with the DOCSIS 2.0 standard upon the condition that the MDD message is not received or the subsidiary channels are not successfully locked. | 12-02-2010 |
| 20100309967 | METHOD AND A MULTI-CARRIER TRANSCEIVER SUPPORTING DYNAMIC SWITCHING BETWEEN ACTIVE APPLICTION SETS - A transceiver and method for communicating over a communications channel having a plurality of subchannels are described. In particular, the transceiver is capable of dynamically switching between communicating data for a first active application set and communicating data for a second different active application set. An active application set is defined as the set of one or more active applications for which the transceiver is currently communicating data. As part of communicating data for the first active application set, the transceiver allocates the subchannels to the one or more applications in the first application set. The transmission requirements of the first active application set defines a first communication state of the transceiver. When the transceiver dynamically transitions to communicating data for the second different application set, the transceiver reallocates the subchannels to the one or more applications in the second different application set. The transmission requirements of the second different active application set defines a second communication state of the transceiver. In one embodiment the transceiver modifies the data rates of subchannels in the Bit Allocation Table according to the transmission requirements of the application whose data is being transmitted on the particular subchannel. In another embodiment, the transceiver is capable of dynamically switching from transmitting data for an Internet access application to transmitting data for a voice telephony application in addition to the Internet access application. In a further embodiment, the ABCD voice telephony signaling bits can be transmitted with either the data from the Internet access application or the data from the voice telephony application. | 12-09-2010 |
| 20100316101 | CROSS CONNECT BLOCK - A cross connect block for a telecommunications system, including a plurality of insulation displacement contact slots arranged in two rows along a first side of the block; another plurality of insulation displacement contact slots arranged in two rows along a second side of the block; and a plurality of contacts, each contact of said contacts including a first insulation displacement contact, arranged for engagement with an insulated conductor seated in one of said slots of the first side of the block, in electrical communication with a second insulation displacement contact, arranged for engagement with an insulated conductor seated in a corresponding one of said slots of the second side of the block, wherein contacts arranged in one of said rows of the first side of the block are electrically isolated from corresponding contacts arranged in another of said rows of the first side of the block. | 12-16-2010 |
| 20100316102 | Method and apparatus for clock recovery in XDSL transceivers - A multi-tone transceiver including: a transform component, a tone selector, an error detector, an aggregator and an oscillator. The transform component transforms received communications from the time domain to the frequency domain. The tone selector selects a sub-set of the received tones which exhibit an elevated signal-to-noise ratio (SNR) as a clock recovery tone set (CRTS) and drops and add tones to the CRTS as required by changes in the SNR of the individual tones. The error detector detects phase errors in each received tone of the CRTS. The aggregator calculates an average aggregate phase error from all tones in the CRTS. The oscillator controls clocking of the transceiver. The oscillator is responsive to the average aggregate phase error to adjust a clock phase in a direction which reduces a phase error with a clock on the opposing transceiver. | 12-16-2010 |
| 20100316103 | POWER SAVING IN A COMMUNICATION DEVICE - A communication device includes an application data interface, a first communication layer and a physical media interface. The first communication layer includes a first entity configured to process application data and a second entity configured to process operations, administrations and maintenance data. The communication device further includes a switching device. In a first power mode, the switching device couples the application data interface to the first entity of the first communication layer. In a second power mode, the switching device couples the application data interface to the second entity of the first communication layer. | 12-16-2010 |
| 20100316104 | WIDEBAND CABLE SYSTEM - A wideband cable modem system increases available bandwidth of a single channel by encoding a data stream into wideband packets. The wideband packets are associated with a logical wideband channel that extends over multiple physical downstream cable channels. | 12-16-2010 |
| 20100322296 | SLOC SPOT MONITORING - Systems and methods for controlling transmission of signals are described. A camera-side modem is configured to receive two signals from a video camera and to extract a received passband signal from a transmission line. A detector in the camera-side modem generates an enable signal when the received passband signal is identified. The enable signal is used to control transmission of at least one of the baseband video signal and the passband video signal. The passband signal may be identified by an estimate of mean square error in a quadrature amplitude demodulator, a measurement of reliability provided by a constellation detector, a measurement of reliability based on a sequence of frame synchronizations and/or an estimate of mean square error in an equalizer. The detector may monitor a gain factor in an automatic gain control module of the camera-side modem and/or a magnitude of the received passband signal. | 12-23-2010 |
| 20100322297 | CARRIER PHASE OFFSET CORRECTION FOR A QAM SYSTEM - Systems and methods are described that may be used to detect and correct carrier phase offset in a signal. A phase offset corrector receives an equalized signal representative of a quadrature amplitude modulated signal and derives a phase-corrected signal from the equalized signal. The equalized signal is sliced to obtain real and imaginary sequences and a frame synchronizer performs a correlation of the real and imaginary sequences with corresponding parts of a stored frame-sync pseudo-random sequence. Phase correction is based on the maximum real and imaginary values of the correlation. The signal is typically quadrature amplitude modulated signal is modulated using punctured trellis codes. Quadrature phase shift keying modulation, 16-QAM, 64-QAM and other QAM schemes may be used. | 12-23-2010 |
| 20100329317 | METHOD AND MULTI-CARRIER TRANSCEIVER WITH STORED APPLICATION PROFILES FOR SUPPORTING MULTIPLE APPLICATIONS - A system and method for supporting multiple applications are described. A digital subscriber line system includes two transceivers in communication over a communication channel using multicarrier modulation. Application profiles are defined for characterizing transmission of information over the communication Channel. Each application profile is a parameter set that is associated with a unique set of one or more applications that may become active between the transceivers and specifies the transmission requirements for such applications. Each transceiver stores the application profiles and transmits information over the communication channel according to the one of the stored application profiles. When a change in a number of applications active between the transceivers occurs, a second one of the application profiles is retrieved. The transceivers then transition to transmitting information over the communication channel according to the second application profile. The transitioning can occur without interrupting communication between the transceivers in order to retrain the transceivers. One of the transceivers transmits a message the other transceiver that specifies the second application profile and requests a transition to that second application profile. In one embodiment, the transceiver transmitting the request receives an inverted sync symbol from the other transceiver to synchronize use of the second application profile. | 12-30-2010 |
| 20110002369 | IP TO ANALOG CONVERTER - A device includes an analog front end, a converter processor, and a network port. The analog front end includes a first modem configured to couple to a first line of a modem bank and includes a second modem configured to couple to a second line of the modem bank. The modem bank is configured to couple to a host processor. The first modem is operable independent of the second modem. The converter processor is coupled to the analog front end. The network port is coupled to the converter processor and configured to communicate with a network. The converter processor is configured to execute instructions to exchange data between the network and the modem bank. | 01-06-2011 |
| 20110007786 | MODEM WITH DATA CABLE - A modem connected to a communication terminal to process communication signals, includes a central processing unit (CPU) for modulating/demodulating signals, a primary antenna connected to the CPU for receiving/sending signals, an interface connected to the CPU and a data cable connecting the communication terminal to the interface. The impedances of the data cable and the primary antenna match each other, such that the data cable resonates with the primary antenna and functions as a secondary antenna when the primary antenna works. | 01-13-2011 |
| 20110007787 | Wireless Communication Modem - A wireless communication modem ( | 01-13-2011 |
| 20110007788 | Method for Robust Crosstalk Precoder Training in Channels with Impulse Noise - An apparatus comprising a first transceiver at a central office (CO) coupled to a second transceiver at a customer premise equipment (CPE) via a digital subscriber line (DSL), a crosstalk precoder coupled to the first transceiver at the CO, and a vectoring control entity (VCE) coupled to the transceiver via a feedback channel and to the crosstalk precoder, wherein the second transceiver comprises a noise monitor configured to detect non-crosstalk noise in a downstream signal from the CO to the CPE, and wherein the first transceiver is configured to receive a predefined special feedback signal from the second transceiver that indicates whether non-crosstalk noise is detected in the downstream signal instead of a measured error value. | 01-13-2011 |
| 20110013680 | CABLE MODEM AND METHOD OF ESTABLISHING QUALITY OF SERVICE THEREOF - A cable modem for establishing quality of service (QoS) for a real-time transport protocol (RTP) voice stream. The cable modem receives different packet types from a network, and establishes a BPU for each packet type. After reading one BPU periodically, the cable modem determines whether the BPU has QoS. Accordingly, the cable modem distributes a fixed bandwidth to establish QoS. | 01-20-2011 |
| 20110013681 | GENERATING AND IMPLEMENTING A COMMUNICATION PROTOCOL AND INTERFACE FOR HIGH DATA RATE SIGNAL TRANSFER - A data Interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range “serial” type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices. | 01-20-2011 |
| 20110019725 | DSL METHOD HAVING VARIABLE UPLOAD/DOWNLOAD BIT RATE AND APPLICATION-SPECIFIC DYNAMIC PROFILE SWITCHING - The present invention relates to a DSL method having preferably DMT frequency bands, which, contrary to the known arrangement having permanently associated upload and download channels, according to the invention comprises universal upload/download frequency channels UUDS (Universal Upload Download Channel) for the optional usage in each traffic direction. The selection and use of the channels for a traffic direction is carried out dynamically during the operation and preferably automatically according to the respectively pending transmission load with application-specific bandwidth adaptation, for example for download and upload applications, voice transmission, video conference, IP-TV and so forth. A particularly advantageous variant (DLC-ADSL, Dynamic Reverse Profile ADSL) is based on the known ADSL standardization with HDP profile (High Download Profile; fast download, slow upload) and an additional inverse profile with switched traffic direction of the transmission channels HUP (High Upload Profile; fast upload, slow download), wherein a switch can be easily carried out between them with a simple command sequence. A symmetrical profile, for example voice, image telephone, peer-to-peer computer coupling and the like, can be a further useful addition. | 01-27-2011 |
| 20110026569 | SYSTEMS AND METHODS FOR LOOP LENGTH AND BRIDGED TAP LENGTH DETERMINATION OF A TRANSMISSION LINE - Through the use of a least squares minimization concept, the loop length, the number of bridged taps and length of the bridged taps on a transmission line can be determined from readily available modem data. In particular, the loop length, the number of bridge taps and the length of bridged taps can be estimated by comparing a measured frequency domain channel impulse response of the transmission line to a model of a loop that is comprised of multiple sections and multiple bridge taps. | 02-03-2011 |
| 20110038401 | Core Modem Assembly for Mobile Communication Device - The invention described herein provides a core modem assembly for a communication circuit that is well suited for mobile communication devices such as cellular phones, personal digital assistants, laptop computers, and hand-held computers. The core modem assembly comprises a baseband module, an RF module, and a socket connector that provides electrical isolation between the baseband module and RF module. The core modem assembly achieves a very small form factor and provides shielding between the baseband module and RF module. Further, the core modem assembly uses a “plug and play” design allowing late customization and interchangeability of the modules. | 02-17-2011 |
| 20110038402 | METHOD AND APPARATUS FOR AN IMPROVED WIRELESS COMMUNICATION RECEIVER - As disclosed herein, a “super receiver” structure enriches the information provided for decoding modem bits included in a received sequence of symbols. In particular, an equalizer circuit provides joint metrics to a decoder circuit, where the joint metrics advantageously reflect joint bit probabilities. However, the metrics are computed without need for complex joint probability calculations. The decoder circuit “fuses” the joint metrics with corresponding side information, which indicates the likelihood that one or more bits represented by the joint metric take on a particular value. Such fusing biases the soft value estimation for the other bits represented by the joint metric, thus enabling the decoder to operate on refined soft values in its bit decoding operations. | 02-17-2011 |
| 20110038403 | ORTHOGONAL FREQUENCY DIVISION MULTIPLEX MODEM CIRCUIT - To provide an orthogonal frequency division multiplex modem circuit which can multiplex signals, whose bit rates and QoS are different from one another, and can transmit the signals via one OFDM line. A serial/parallel converter converts input signals into a complex parallel signal respectively, and a sub carrier and a modulation system are assigned every communication channel. A randomizer changes the alignment sequence of the signal, a discrete inverse Fourier transformer processes the signal, a parallel/serial converter converts the signal into a serial signal, and a transmitter performs the orthogonal modulation of the signal to output the signal from an antenna. A receiver performs orthogonal demodulation of the signal received with an antenna, a serial/parallel converter converts the signal into a parallel signal, and a discrete Fourier transformer processes the parallel signal. In addition, a de-randomizer restores the alignment sequence of the subcarriers into the original condition, and a parallel/serial converter decodes and outputs the signal. | 02-17-2011 |
| 20110051786 | POWER LINE COMMUNICATION METHODS AND DEVICES - A power line communication method for realizing data communication between at least one first or sending power line communication partner device and at least one second or receiving power line communication partner device. The method checks transmission conditions of a plurality of possible communication channels, thereby generating transmission condition data descriptive for the communication conditions of the respective possible communication channels. Additionally, communication conditions of the plurality of possible communication channels are selected as actual communication conditions based on the transmission condition data. | 03-03-2011 |
| 20110058594 | COMMUNICATION METHOD AND POWER LINE COMMUNICATION TERMINAL - In power line communication using a power line as a transmission path, a transmitter terminal transmits a communication signal while changing a phase parameter of the communication signal transmitted, in the continuous communication signal, according to an impedance variation amount on the transmission path. In this communication method, the communication signal is received stably with no variation in the phase parameter of the communication signal in response to the impedance variation amount on the transmission path, permitting high-speed data communication with reduced communication error. | 03-10-2011 |
| 20110064126 | COMMUNICATION APPARATUS, COMMUNICATION SYSTEM, WIRE HARNESS AND COMMUNICATION METHOD - Plural ECUs are connected to each other by an electric power line that is for supplying electric power. Each ECU sends information with a carrier wave having a first frequency lower than a dip frequency estimated by the physical condition and the circuit structure of electric power line, or having a second frequency lower than the first frequency. Or, the physical condition and the circuit structure of electric power line are determined, on the contrary, to make the dip frequency become higher than the frequency of utilized carrier wave. The frequency utilized for sending information may be selected in accordance with the contents of information. | 03-17-2011 |
| 20110075716 | CABLE MODEM - A cable modem includes a subscriber line interface circuit (SLIC) that is connected to a telephone. The cable modem can send a signal to the telephone through the SLIC, and detect signal reflection of the telephone in the SLIC. The cable modem measures frequencies of the signal reflection and the output of the telephone. The cable modem also compares the measured frequencies with corresponding thresholds and self-determines to be qualified or unqualified, based upon the comparisons. | 03-31-2011 |
| 20110075717 | MULTIMODE MULTICARRIER MODEM SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 03-31-2011 |
| 20110080938 | VECTORED DSL CROSSTALK CANCELLATION - A vector DSL system includes a plurality of modems, which may be multi-port devices. Unprocessed user data is extracted from the modems and passed through a private vectoring data routing apparatus to one or more vectoring modules, such as vectoring cards. Each vectoring module includes one or more vector processors that include processing units configured to process the unprocessed user data on the basis of all modems' data for a given DSL tone grouping. Processing of the unprocessed user data removes the effects of FEXT from upstream and downstream user data and returns the processed user data to the modems using the vectoring data routing apparatus, which can be a specialized data transmission network utilizing one or more vector routers. | 04-07-2011 |
| 20110103441 | CABLE MODEM - A cable modem includes an amplifier, a power module, a switch circuit, a monitor signal, a duplexer and a RF matching circuit. The switch includes a PMOS transistor and a first electronic switch. The RF matching circuit included a second electronic switch and an electronic matching device. The monitoring signal source is configured for outputting a control signal. When the monitoring signal source stops outputting the control signal, both the first electronic switch and the PMOS transistor are turned off to cut off the power to the amplifier, the second electronic switch is turned on, and conducts the RF signal received by the signal receiving/transmitting circuit to the duplexer which further conducts the RF signal to the radio frequency matching circuit. | 05-05-2011 |
| 20110103442 | MOBILE TERMINAL, METHOD OF CONTROLLING MOBILE TERMINAL AND CONTROL APPARATUS - A mobile terminal has a communication unit for performing wireless communication, a plurality of modem units for performing modulation and demodulation in different communication methods, respectively, and a control unit for obtaining time information indicating a suspension of a wireless communication from a main modem unit in the plurality of modem units, for suspending the main modem unit from performing wireless communication via the communication unit, and for enabling the main modem unit to perform wireless communication via the communication unit on the basis of the time information, wherein, while the main modem unit suspending wireless communication, the control unit enables a sub modem unit in the plurality of modem units to measure a reception level via the communication unit in accordance with the obtained time information. | 05-05-2011 |
| 20110103443 | SYSTEMS AND METHODS FOR ESTABLISHING A DIAGNOSTIC TRANSMISSION MODE AND COMMUNICATING OVER THE SAME - Upon detection of a trigger, such as the exceeding of an error threshold or the direction of a user, a diagnostic link system enters a diagnostic information transmission mode. This diagnostic information transmission mode allows for two modems to exchange diagnostic and/or test information that may not otherwise be exchangeable during normal communication. The diagnostic information transmission mode is initiated by transmitting an initiate diagnostic link mode message to a receiving modem accompanied by a cyclic redundancy check (CRC). The receiving modem determines, based on the CRC, if a robust communications channel is present. If a robust communications channel is present, the two modems can initiate exchange of the diagnostic and/or test information. Otherwise, the transmission power of the transmitting modem is increased and the initiate diagnostic link mode message re-transmitted to the receiving modem until the CRC is determined to be correct. | 05-05-2011 |
| 20110110406 | SYSTEM AND METHOD FOR CELLULAR COMMUNICATIONS - A system for allocating subcarriers to subscribers, comprising a subcarriers allocation controller, connected to a subcarrier modulation unit in a transmitter and to a subcarrier demodulation unit in a receiver for setting a group of subcarriers to be used therein. The transmitter and the receiver are part of the transceiver and subcarriers allocation is made according to a Reed-Solomon code. In a multicarrier system, a method for allocating subcarriers to subscribers, comprising: A. keep a table of R-S codes for frequency group allocation to base stations; B. assign one set of subcarriers based on R-S codes to a base station; C. assign other sets of subcarriers based on R-S codes to other base stations in such a way that adjacent base stations have different R-S codes. | 05-12-2011 |
| 20110110407 | POWER SOURCE CIRCUIT FOR USE IN DIGITAL SUBSCRIBER LINE MODEM - A power source circuit is connected to a power source and a digital subscriber line (DSL) modem. The power source circuit includes a boosting transformer, a storage capacitor, a voltage converter, a first switch, a second switch, and a trigger. The boosting transformer boosts an input voltage of the power source. The storage capacitor charges by the boosted voltage. The voltage converter converts the input voltage of the power source into a rated working voltage of the DSL modem. The trigger triggers the first switch to electrically connect the storage capacitor to the voltage converter and the second switch to electrically connect the power source to the voltage converter. | 05-12-2011 |
| 20110110408 | POWER LINE COMMUNICATION METHODS AND DEVICES - A power line communication method for realizing data communication between at least one first or sending power line communication partner device and at least one second or receiving power line communication partner device. The method checks transmission conditions of a plurality of possible communication channels, thereby generating transmission condition data descriptive for the communication conditions of the respective possible communication channels. Additionally, communication conditions of the plurality of possible communication channels are selected as actual communication conditions based on the transmission condition data. | 05-12-2011 |
| 20110110409 | REDUCED MEMORY VECTORED DSL - A reduced-memory vectored DSL system includes methods and apparatus for reducing the bandwidth and memory storage demands on a vectored DSL system in which FEXT data is transmitted and stored. An upstream-end device such as a DSLAM communicates with a plurality of downstream-end devices such as CPE modems. When test signal data, such as training and/or tracking data, is sent to determine FEXT characteristics of the DSL system, error signals are available for all or substantially all of the upstream and/or downstream frequency band DSL tones used in the system. Dividing a frequency band into sub-bands, only a subset of tones in each sub-band is used for deriving FEXT data, such as a FEXT channel response, FEXT channel coefficients and/or FEXT cancellation coefficients. For tones in the sub-band subsets, full-precision FEXT data values can be derived. For other tones, approximations of the FEXT data can be derived. Alternatively, FEXT data can be defined as a base point and associated differential/incremental values that define full-precision and/or approximation FEXT data with fewer bits by utilizing a Δ value relative to either a sub-band base point or relative to another tone's value. Memory is reduced in both the transmission of such FEXT data (between upstream and downstream ends of the DSL system) as well as within an upstream-end device such as a DSLAM that performs vectoring using a separate or internal vectoring processing apparatus. Memory also is reduced in the storage of such FEXT data in or off of the DSLAM or other upstream-end device. | 05-12-2011 |
| 20110129005 | NEAR-END CROSSTALK NOISE MINIMIZATION AND POWER REDUCTION FOR DIGITAL SUBSCRIBER LOOPS - To optimize the performance of DSL modems in the same cable bundle, the size and position of the group of subcarriers used for transmission is intelligently selected when the bit rate necessary for making the transmission is less than the total available bandwidth provided by all subcarriers. By intelligently selecting a minimum number of subcarriers for Digital Multi-tone (DMT) signal transmission, a reduction in line driver power consumption is effectuated. Additionally, by intelligently selecting the position of the groups of subcarriers within the total available subcarriers, near-end crosstalk (NEXT) noise within the cable bundle may be minimized. | 06-02-2011 |
| 20110134976 | POWER LINE COMMUNICATION SYSTEM WITH DC POWER BUS - A power line communication system with DC power bus includes a power supply source, a capacitive smoothing means for smoothing the electrical voltage delivered by the source to the bus, at least one distribution box supplied by the bus and dedicated to at least one item of equipment, and an electrical current coupler of high-frequency data-carrying signals and a data modem, which are attached to the distribution box and to at least one supply line of an item of equipment. | 06-09-2011 |
| 20110134977 | Method and Apparatus for Automatic Selection and Operation of a Subscriber Line Spectrum Class Technology - Systems and methods for selecting an operating mode for a communication device are disclosed. The operating mode is compatible with one or more spectrum management classes. One such method includes measuring subscriber loop characteristics and identifying a first allowable class corresponding to the measured subscriber loop characteristics. The allowable class is chosen from a group of spectrum management classes. The method further includes selecting an operating mode from a group of possible operating modes. The selected operating mode is compatible with the first allowable class. | 06-09-2011 |
| 20110142110 | METHOD FOR DETECTING AN INGRESS OF A SHORT-WAVE RADIO SIGNAL IN A POWER LINE COMMUNICATION SYSTEM AND POWER LINE COMMUNICATION MODEM - A method for detecting an ingress of a short wave radio signal in a power line communication system which determines a strength of a common mode signal at a frequency of the power line communication system during a time period when no communication in the power line communication system at this frequency takes place and an ingress is detected if the strength of the common mode signal is above a determined threshold. A corresponding power line communication modem can implement such a method. | 06-16-2011 |
| 20110142111 | ALIEN INTERFERENCE REMOVAL IN VECTORED DSL - A vectored DSL system reduces or eliminates correlated alien interference in active DSL lines in the vectored system by collecting pseudo signals from inactive lines that do not carry upstream DSL transmissions and/or from common-mode voltage signals from active lines. The collected pseudo signals contain in-domain interference, such as FEXT interference from the active DSL lines in the vectored system, and correlated alien interference. After removing the in-domain interference from the pseudo signals, the remaining alien interference data can be used to generate FEXT cancellation coefficients or the like that are used in DSL vectoring to remove the correlated alien interference from upstream DSL user signals from the active DSL lines. The generated FEXT cancellation coefficients are used in a manner analogous to in-domain FEXT data collected from the active lines during training, tracking, etc. The vectored DSL system can include modems coupled to a private vectoring data routing apparatus to one or more vectoring modules The vectoring modules can employ vector processors that include processing units configured to process collected user data on the basis of all modems' data for a given DSL tone grouping, thus removing FEXT effects from the user data and returning vectored user data to the modems using the routing apparatus, which can be a specialized data transmission network utilizing one or more vector routers. | 06-16-2011 |
| 20110150057 | Monitoring Non-Managed Wire Pairs to Improve Dynamic Spectrum Management Performance - A digital subscriber line (DSL) network provides enhanced dynamic spectrum management (DSM) based on estimated foreign interference obtained from monitoring unmanaged wire pairs in a cable. A DSL access multiplexer (DSLAM) or other line terminal provides vectored DSL signaling to a plurality of subscribers via a first set of wire pairs of the cable. The DSLAM monitors a second set of one or more wire pairs of the cable that are not connected to the vectored group associated with the first set of wire pairs to estimate foreign interference introduced to the first set of wire pairs. The DSLAM then modifies the vectored DSL transmitted signaling responsive to the estimated foreign interference so as to pre-cancel or otherwise compensate for the foreign interference introduced into the managed wire pairs. | 06-23-2011 |
| 20110150058 | CABLE MODEM CONTROL METHOD BASED ON CHANNEL STATES - Provided is a cable modem control method. The cable modem control method checks upstream parameters which are received by a cable modem termination system to check a status of an upstream channel. The cable modem control method determines whether the upstream channel is good or whether to allow an upstream data transmission of a cable modem on the basis of a result of the check. The cable modem control method suspends the upstream data transmission of the cable modem and performs ranging when the upstream channel is not good as a result of the determination. The cable modem control method postpones bandwidth allocation to a channel of the cable modem and allocates a bandwidth to another usable upstream channel. The cable modem control method returns to a normal status when the ranging is successfully ended. | 06-23-2011 |
| 20110158301 | MODEM ARCHITECTURE - A modem device for use in a wireless communications terminal comprises a plurality of functional units to perform signal processing tasks which are connected in a ring structure. Each of the functional units comprises a local processor, a plurality of hardware accelerators and a switching matrix connected between a data input of the respective functional unit and each of the sub-components. The local processor receives task instructions from a controller of the modem device over a first bus system that uses a first protocol which includes addressing, and in response to the task instructions configures the hardware accelerators and switches the switching matrix to selectively produce connections between the data input and the hardware accelerators in a manner to perform the intended task. Data flow occurs in a ring structure between said functional units and through each of the functional units using a second protocol without addressing. | 06-30-2011 |
| 20110164665 | TRANSMITTER WITH INTERNAL COMPENSATION FOR VARIANCE IN DIFFERENTIAL DATA LINE IMPEDANCE - In at least some embodiments, an electronic device includes a first data endpoint and differential data transceiver coupled to the first data endpoint. The differential transceiver provides a communication interface between the first data endpoint and a second data endpoint. The differential transceiver compensates for variations in a series impedance and/or a parallel impedance for a differential data line between the differential transceiver and the second data endpoint. | 07-07-2011 |
| 20110170579 | METHOD AND APPARATUS FOR UNIVERSAL xDSL DEMARCATION INTERFACE WITH MULTI-FUNCTIONAL CAPABILITY AND SIGNAL PERFORMANCE ENHANCEMENT - Provided is an apparatus for splitting an input signal, the apparatus including a xDSL profile filter for filtering a first sub-signal from the input signal, the first sub-signal according to a xDSL profile, and outputting a xDSL profile output signal; a voice-band filter for filtering a second sub-signal from the input signal, the second sub-signal according to a voice frequency band, and outputting a voice-band output signal; and a user interface for selecting a xDSL profile mode, wherein the xDSL profile mode is consistent with one of a plurality of xDSL profiles, and wherein the xDSL profile filter filters the first sub-signal according to the xDSL profile mode. | 07-14-2011 |
| 20110170580 | SIGNAL PROCESSING UNIT AND METHOD, AND CORRESPONDING TRANSCEIVER - A signal processing unit and a method for using the signal processing unit. The signal processing unit comprising at least two Digital Signal Processors (DSPs) and at least one memory for storing data. The DSP is adapted for signal processing and is capable of accessing the at least one memory. According to an embodiment, the signal processing unit is an Orthogonal Frequency-Division Multiplexing (OFDM) transceiver. The OFDM transceiver is adapted to receive and transmit signals. | 07-14-2011 |
| 20110170581 | DISTRIBUTED DIGITAL SUBSCRIBER LINE ACCESS MULTIPLEXER - A distributed DSLAM, which comprises a head end subsystem located within a switching facility and a remote subsystem located outside of the switching facility. The head end subsystem is operative for routing streams of data from a data network to the remote subsystem over a communication link, while the remote subsystem is operative for transmitting over a set of local loops analog signals comprising digitally modulated versions of the data. Separating the routing and modem functionality between inside and outside plant facilities reduces heat dissipation in the outside plant, leading to increased reliability. Flow control can be performed in the upstream and downstream directions by transmitting portions of individual packets and withholding other portions of individual packets. This is done instead of withholding the transmission of entire packets. As a result, the perceived impact on video quality, for example, is lessened. | 07-14-2011 |
| 20110176588 | METHOD AND DEVICE FOR DATA PROCESSING AND COMMUNICATION SYSTEM COMPRISING SUCH DEVICE - A method and a device for data processing are provided, wherein a first network element conveys data towards a second network element at least one frequency at, e.g., a precalculated reduced transmission power to feign signal-to-noise ratio. Furthermore, a communication system is suggested comprising said device. | 07-21-2011 |
| 20110182334 | Method And System For Communicating Over Neutral Power Lines - A method and system for communicating over neutral power lines is provided wherein the neutral power line is isolated from the ground line and other connections, such as with transformers, by using a plurality of ferrites. The ferrites are positioned between the connections to the neutral line and the outputs of a BPL modem. | 07-28-2011 |
| 20110188554 | METHOD AND DEVICE FOR REDUCING THE TRANSMISSION POWER ON A DIGITAL SUBSCRIBER LINE - A method and a device for data processing are provided, said method comprising the steps of (a) at least one bit of the data is manipulated ( | 08-04-2011 |
| 20110200078 | COMMUNICATION APPARATUS, COMMUNICATION METHOD, AND PROGRAM PRODUCT - Disclosed is a communication apparatus, comprising: a connector which can be connected with modems that have different communication-related characteristics and achieve wireless communication with an external network; a selector for selecting one of the modems that are connected with the connector in a communicable manner, in accordance with a preset communication condition, for communication with the external network in a new session; and a communicator for achieving wireless communication with the external network in the new session by using the selected modem. | 08-18-2011 |
| 20110200079 | MULTIMODE MULTICARRIER MODEM SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 08-18-2011 |
| 20110200080 | METHOD, SYSTEM, AND DEVICE FOR POWER ADJUSTMENT - A method, a system, and a device for power adjustment are provided. The method includes: determining whether transmission power of a line needs adjustment according to feedback errors during a training procedure of a Vectored-Digital Subscriber Line (Vectored-DSL) filter; and adjusting the transmission power when the transmission power of the line needs adjustment. By automatically determining whether the transmission power needs adjustment during a training procedure of a precoder or canceller, and adjusting the transmission power automatically when the transmission power needs adjustment, interference to other subscribers caused by the precoder or canceller during the training procedure is reduced, and call drops of the other subscribers are prevented. | 08-18-2011 |
| 20110206101 | TECHNIQUE FOR NOISE MITIGATION IN XDSL LINES - A practical technique for noise mitigation, based on the conventional DPBO, UPBO and VN technologies and enabling dynamic, more accurate determination of parameters required for management of transmission in xDSL channels. The technique combines the conventional noise mitigation techniques with systematic determining of crosstalk readings at each and every line of the xDSL binder, in particular with the DSM (Dynamic Spectrum Management) mechanism. | 08-25-2011 |
| 20110206102 | METHOD, SYSTEM, AND DEVICE FOR RAPIDLY EXITING TRAINING - A method, a system, and a device for rapidly exiting training are provided. The method includes: in a training procedure of a Vectored-Digital Subscriber Line (DSL) filter, comparing a feedback error value of the filter and/or a swing range of a filter coefficient with a preset threshold, and determining whether the filter meets a convergence condition according to a comparison result; and exiting the training procedure of the filter when the filter meets the convergence condition. The method, system, and device are applicable to a training procedure of a Vectored-DSL precoder or canceller, so as to rapidly exit the training procedure. | 08-25-2011 |
| 20110206103 | SYSTEMS AND METHODS FOR INCREASING CABLE MODEM SYSTEM BANDWIDTH EFFICIENCY - A cable modem termination system measures signal qualities of upstream transmissions associated with one or more cable modems. The system monitors the measured upstream signal qualities, and selectively commands at least one of the one or more cable modems to switch between upstream channels based on the signal quality monitoring. | 08-25-2011 |
| 20110206104 | Reduced-Complexity Common-Mode Noise Cancellation System For DSL - A noise cancellation system has a first transformer with an input side and an output side, the input side having first and second taps coupled to a signal provider, and a center tap providing a first common-mode voltage signal. A first digital subscriber line (xDSL) modem has an input coupled to the output side of the first transformer and an output coupled to customer premises equipment (CPE) for providing an xDSL signal to the CPE. A second transformer has an input side and an output side, the input side having first and second taps coupled to a signal provider, and a center tap providing a second common-mode voltage signal. A second xDSL modem is coupled to the output side of the second transformer. The difference between the first and second common-mode voltage signals is provided to at least one of the first and second xDSL modems to flier out noise from the xDSL signal provided by that modem. | 08-25-2011 |
| 20110211623 | METHOD AND SYSTEM FOR APPLYING DYNAMIC SPECTRAL SHAPING TO DIGITAL SUBSCRIBER LOOP COMMUNICATION SYSTEMS - Mitigation of spectral interference in communications systems such as Digital Subscriber Loop (DSL) systems, and in particular mitigation of spectral interference using dynamic spectral shaping (DSS) in DSL systems, and in particular Single-pair High-speed DSL (SHDSL) systems. | 09-01-2011 |
| 20110211624 | Digital Subscriber Line Noise Mitigation Techniques, and Applications Thereof - The present invention provides digital subscriber line noise mitigation techniques, and applications thereof. In an embodiment, the present invention provides a toolbox of methods and techniques for mitigating the effects of noise in xDSL systems. These methods and techniques are controllable and locatable at one or both ends of a DSL communication link (e.g., within a central office transceiver unit or a remote transceiver unit). These novel methods and techniques include: (1) per tone noise margin modification, (2) data framer constraints modification, (3) improved noise measurements; (4) more robust on-line reconfiguration processes, (5) worst case noise monitoring, (6) induced bit rate limitations, and (7) distortion noise mitigation. These methods and techniques are particularly useful for mitigating the effects of time-varying noise and impulse noise. | 09-01-2011 |
| 20110211625 | WIRELESS IN-BAND SIGNALING WITH IN-VEHICLE SYSTEMS - This invention pertains to methods and apparatus for data communications from vehicles, to obtain emergency, concierge and other services, using a voice channel of a digital wireless telecommunications network. Signaling is described for commencing data sessions after establishing a voice channel call. The call may be initiated from the vehicle automatically, and the call taker location may be unattended. Signaling methods are selected for traversing both newer and legacy vocoders for ubiquitous operation. | 09-01-2011 |
| 20110216816 | MULTI-CARRIER CLOCK TRANSPORT AND SYNCHRONIZATION - At least one implementation generates at least one time-domain sample in a multicarrier apparatus, and links a first timestamp to the at least one time-domain sample. The at least one time-domain sample may be associated with a Discrete Multi-Tone (DMT) symbol and transmitted to a receiving multicarrier apparatus. The receiving multicarrier apparatus may generate a second timestamp upon receiving the at least one time-domain sample. | 09-08-2011 |
| 20110235692 | METHOD AND SYSTEM FOR ROBUST DIGITAL SUBSCRIBER LOOP COMMUNICATION - A DSL communication system and a method for configuring a DSL communication system. The method includes training at least one anchor DSL modem transmitter to transmit information over at least one anchor line at an anchor bit rate that is determined based on an allowable tolerable noise level and a minimum allowable signal-to-noise ratio (SNR) margin; training one or more other DSL modem transmitter to transmit information over one or more other line at a bit rate that is determined by a current noise level and a target SNR margin, wherein the target SNR margin is higher than the minimum allowable SNR margin; and transmitting information by at least one trained DSL modem transmitter to at least one DSL modem receiver. | 09-29-2011 |
| 20110249714 | MODEM SIGNALING USING A MULTITONE PREFIX OVER A VOICE CHANNEL OF A WIRELESS COMMUNICATION SYSTEM - A system and method of communicating data between a vehicle and call center via a voice channel of a wireless communication system. The method carried out by the system includes the steps of: establishing a voice channel connection between a vehicle telematics unit and call center via a wireless cellular network; generating a modem signaling carrier comprising a prefix followed by a single frequency tone; sending the modem signaling carrier over the voice channel connection using an EVRC-B vocoder; establishing a data communication session over the voice channel connection in response to the modem signaling carrier; and thereafter carrying out data communications between the vehicle telematics unit and call center during the data communication session. | 10-13-2011 |
| 20110249715 | APPARATUS AND METHOD FOR SAVING POWER CONSUMPTION IN BROADBAND WIRELESS COMMUNICATION SYSTEM - An apparatus and method reduce power consumption in a broadband wireless communication system. A transmitting end apparatus that includes a plurality of transmit (Tx) antennas includes a control block, a Processor (DSP) block, a modem block, and at least one power controller. The control block determines a traffic amount based on an amount of used resources. The Digital Signal Processor (DSP) block performs scheduling by using a subset of Tx antennas and a subset of resources on a frequency axis if the traffic amount is less than a threshold. The modem block applies boosting to a signal transmitted using the subset of resources. And at least one controller turns off an operation of at least one power amplifier that corresponds to at least one Tx antenna that is not included in the subset of Tx antennas. | 10-13-2011 |
| 20110255581 | Pre-Distorting A Transmitted Signal For Offset Cancellation - In one embodiment, the present invention includes a pre-driver to receive data of a first clock phase and to pre-drive the data, a driver coupled to the pre-driver to drive the data onto a link operable to be coupled to a receiver, and an offset driver to drive an offset value associated with the first clock phase onto the link with the data. Other embodiments are described and claimed. | 10-20-2011 |
| 20110268165 | CABLE MODEM AND METHOD OF SUPPORTING VARIOUS PACKET CABLE PROTOCOLS - A cable modem communicates with a plurality of packet cable dynamic host configuration protocol (DHCP) servers and a terminal DHCP server. Each packet cable DHCP server corresponds to one packet cable protocol. The cable modem broadcasts a DHCP discover packet with one packet cable protocol to the packet cable DHCP servers and the terminal DHCP server, and receives a DHCP offer packet from one of the packet cable DHCP servers and the terminal DHCP server. The cable modem changes the one packet cable protocol to another packet cable protocol to make the communication module receive a compliant DHCP offer packet upon the condition that the received DHCP offer packet is incompliant with the one packet cable protocol. | 11-03-2011 |
| 20110274148 | Managing Upstream Transmission in a Network - A bandwidth allocation and monitoring method may divide available bandwidth on a shared communication medium into a plurality of discrete tones that can be individually allocated to modems on an as-needed basis. The effective modulation rate that a particular modem can use for each discrete tone can be monitored over time using a schedule of pilot tones transmitted from the modems on different tones at different times. The schedule may define representative pilot tones, in which case effective modulation rates for neighboring tones may be inferred from a determined effective modulation rate of a pilot tone. | 11-10-2011 |
| 20110274149 | METHOD, APPARATUS, AND SYSTEM FOR TIME SYNCHRONIZATION OF XDSL - The present invention provides a method, an apparatus, and a system for time synchronization of an xDigital Subscriber Line (xDSL). The method includes: transmitting, by a customer premises equipment (CPE), a first symbol to a central office (CO) equipment, and obtaining time Ts | 11-10-2011 |
| 20110280292 | VSAT MODEM SHELF - A modem configuration system having at least one modem configured to receive a configuration signal; and at least one media at least one media support surface positioned in a media rack, wherein the modem is selectively positioned on and connected to at least one auto-configuration server through at least one media line fixed to the media support surface and operable to provide a signal. | 11-17-2011 |
| 20110286504 | WIRELESS MODEM DEVICE, WIRELESS MODEM SYSTEM, WIRELESS MODEM DEVICE SLEEP/WAKE-UP METHOD, AND TERMINAL - A wireless modem device, a wireless modem system, a wireless modem device sleep/wake-up method, and a terminal are provided. The wireless modem device includes: a universal serial bus (USB) port, connected to the terminal through a serial bus to obtain an action signal from the terminal; and a sleep/wake-up circuit unit, connected to the USB port and configured to send a notification signal to a central processing unit (CPU) of the wireless modem device according to the received action signal to enable the wireless modem device to sleep or wake up. The terminal includes a USB port and a modem drive unit. | 11-24-2011 |
| 20110292979 | METHOD AND APPARATUS FOR CONTROLLING SUSPEND MODE IN DUAL MODEM DEVICE - A dual modem device is provided. The dual modem device includes a first processor for communicating with a first network and a second processor for communicating with a second network and the second processor includes a host module for controlling the first processor. The first processor includes a first processor side IPC (Inter-Processor Communication) for transceiving signals with the second processor and the second processor further includes a second processor side IPC for transceiving signals with the first processor. The second processor transfers a suspend message to the first processor for shifting to a suspend mode and configures the second processor side IPC to not work. The first processor receives the operating suspend message, transfers a suspend response message to the second processor and configures the first processor side IPC to not work. | 12-01-2011 |
| 20110292980 | DETECTING FAULTS AFFECTING COMMUNICATIONS LINKS - A modem or associated computing or testing device is configured to detect the presence of one or more faults that affect DSL communications, and upon their detection, generate, for example, an indication, communication or message that recommends corrective action. In this context, a fault is generally caused by one or more unfiltered devices, impulsive noises, malfunctioning modems, or other factor that does not affect measured attenuation or measured noise, but does affect the signal-to-noise ratio (SNR) of the link. In addition to being able to generate a message guiding a user through corrective action, the system can estimate the rate impact of the detected fault. | 12-01-2011 |
| 20110299578 | DATA TRANSMITTING AND RECEIVING METHOD AND DEVICE FOR COMMUNICATION AND SYSTEM THEREOF - A data transmitting and receiving device and method are used for saving powers and maintaining the connection quality, stability and continuous link. The method includes the step of gradually adjusting the de-emphasis of the signal transmitted from the data transmitting and receiving device according to the setting value thereof. The method also includes the steps of transmitting training sequence signal with an amplitude and the default de-emphasis by the data transmitting and receiving device to the remote device, receiving the training sequence signal from the remote device, thereby the channel attenuation is estimated using the method, and a better de-emphasis is set up. Then, the data transmitting and receiving device gradually increases the amplitude of the training sequence signal and re-transmits it until the remote device receives the training sequence signal transmitted therefrom. | 12-08-2011 |
| 20110299579 | DSL SYSTEM - Methods, techniques, computer program products, apparatus, devices, etc., used in connection with DSL Management Interfaces, significantly improve the management capabilities of a DSL network and/or improve testing relating to DSL equipment and services by permitting better control and operation of a DSL system, including implementation of timestamping for more accurate measurement, monitoring and control of a system. Timestamping further allows customized data collection techniques, where a DSL line can be measured or monitored at intervals whose frequency depends on the line's stability. Moreover, data parameter read and control parameter write operations are presented in conjunction with the use of timestamping. Also, control and operation of a DSL system is enhanced by implementing bit-loading that minimizes, eliminates or otherwise mitigates the amount by which the SNR margin per tone exceeds a maximum SNR margin quantity, where such bit-loading can be selected through an appropriate interface. | 12-08-2011 |
| 20110310943 | POWERLINE COMMUNICATOR (PLC) MODEM EMPLOYING AN ANALOG MAGNETIC TRANSDUCER - A PLC cable modem is provided which includes an analog electromagnetic field transducer for generating an electromagnetic field based on an analog electrical signal and also for generating an analog electrical signal based on an electromagnetic field. The PLC cable modem also includes an analog signal processing unit operatively coupled to the analog electromagnetic field transducer and a digital signal processing unit for processing signals received from (or to be sent to) the analog signal processing unit. An interface port is provided for communicating digital signals to and from a data transmission or receiving device. | 12-22-2011 |
| 20120002709 | SPLITTERLESS MULTICARRIER MODEM - A modem for use in Digital Subscriber Line communications transmits and receives data over the local subscriber loop in common with voice information over the loop, while avoiding the need for voice/data splitters. The modem responds to disruptions associated with “disturbance events” such as on-hook to off-hook transitions and the like by rapidly switching between pre-stored channel parameter control sets defining communications over the loop under varying conditions. In addition to changing parameter control sets responsive to a disturbance event, the modem may also change transmission power levels and other system parameters such as frequency domain equalizer characteristics. Further, provisions are made for reduced bandwidth communications under selected conditions. | 01-05-2012 |
| 20120008668 | Wireless Digital Subscriber Line Device having Reduced RF Interference - A system and method for wireless DSL routing without signal interference is disclosed herein. The system includes a DSL interface, a WLAN interface, and a power system. The WLAN interface is isolated from the rest of the system by various isolation and signal interference reduction techniques. The system can be implemented in a single printed circuit board. | 01-12-2012 |
| 20120014422 | COMPRESSION OF BASEBAND SIGNALS IN BASE TRANSCEIVER SYSTEM RADIO UNITS - A signal compression method and apparatus for a base transceiver system (BTS) in a wireless communication network provides efficient transfer of compressed signal samples over serial data links in the system. For the uplink, an RF unit of the BTS compresses baseband signal samples resulting from analog to digital conversion of a received analog signal followed by digital downconversion. The compressed signal samples are transferred over the serial data link to the baseband processor then decompressed prior to normal signal processing. For the downlink, the baseband processor compresses baseband signal samples and transfers the compressed signal samples to the RF unit. The RF unit decompresses the compressed samples prior to digital upconversion and digital to analog conversion to form an analog signal for transmission over an antenna. Compression and decompression can be incorporated into operations of conventional base stations and distributed antenna systems, including OBSAI or CPRI compliant systems. | 01-19-2012 |
| 20120020393 | USER DEVICE DORMANCY - In a particular embodiment, a method includes sending a message from a communication device to a radio network controller. The message indicates that a data session has ended. The data session is supported by a wireless channel between the communication device and the radio network controller. After a time period following the sending of the message, a second message is selectively sent to the radio network controller. The second message indicates that the data session has ended. The second message is selectively sent based at least in part on whether a measurement indicates that data was communicated via the wireless channel during the time period. | 01-26-2012 |
| 20120020394 | APPLICATION PROCESSOR, MODEM AND METHOD FOR COMMUNICATING THEREBETWEEN - The invention discloses a method for communicating an application processor and a modem. A physical link is provided between the application processor and the modem and corresponds to multiple virtual channels. The modem is embedded in a user equipment, and the user equipment is adapted for multiple user identification module cards. The method comprises: establishing, by the application processor, a relation of combining virtual channels to the user identification module card for receiving the service requests when service requests are sent to at least a user identification module card of the user equipment; and transferring the service requests to the user identification module card through the virtual channels which have the relation of combining to the user identification module card. The virtual channels which have the relation of combining to the user identification module card transfer the service requests so as to combine each user identification module card in a multi-card multi-standby mobile phone to a corresponding channel, avoiding the situation that when the intelligent phone transfers the service request, it is uncertain which channel is identified to transfer the service request and which user identification module card receives the transferred service request. | 01-26-2012 |
| 20120020395 | SYSTEM AND METHOD FOR DIGITAL SUBSCRIBER LOOP CROSSTALK CANCELLATION - A system and a method for crosstalk cancellation, the method includes: (i) generating estimated crosstalk cancellation matrices for each frequency bin of a group of adjacent frequency bins, wherein each estimated crosstalk cancellation matrix provides an estimation of a crosstalk cancellation that is expected to mitigate crosstalk that is generated at a single frequency bin by an array of transmitters that transmit information over different copper pairs that form a bonded digital subscriber line link; (ii) generating a group crosstalk cancellation matrix based on the estimated crosstalk cancellation matrices, wherein a size of the group crosstalk cancellation matrix is smaller that an aggregate size of the estimated crosstalk cancellation matrices; and (iii) cancelling crosstalk for each frequency bin of the group by utilizing the group crosstalk cancellation matrix. | 01-26-2012 |
| 20120027059 | COORDINATING DATA CALLS ON A MOBILE DEVICE WITH MULTIPLE MODEMS - A method for inter-modem coordination is described. A first data connection to a network in a first network coverage area using a first air interface provided by a first modem is established. The method also includes detecting a second network coverage area with a second air interface provided by a second modem. A data call state of the second modem is determined by the first modem. The first data connection to the network by the first modem is terminated when the data call state of the second modem is no data call. A data call state of the first modem is determined by the second modem. A second data connection to the network using the second air interface provided by the second modem is initiated when the data call state of the first modem is no data call. | 02-02-2012 |
| 20120027060 | UPBO FOR VECTORED DSL - Residual FEXT resulting from intended and/or inherent partial cancellation of crosstalk in vectored DSL systems impairs upstream power back-off (UPBO) as traditionally implemented. By considering and taking into account the effects of residual crosstalk on vectored DSL system performance and operation, improved data rates and/or other vectored DSL system performance are realized through the use of UPBO parameters generated for a given residual FEXT environment. | 02-02-2012 |
| 20120027061 | WIRELESS MODEM DEVICE, WIRELESS MODEM SYSTEM, WIRELESS MODEM DEVICE SLEEP/WAKE-UP METHOD, AND TERMINAL - A wireless modem device, a wireless modem system, a wireless modem device sleep/wake-up method, and a terminal are provided. The wireless modem device includes: a universal serial bus (USB) port, connected to the terminal through a serial bus to obtain an action signal from the terminal; and a sleep/wake-up circuit unit, connected to the USB port and configured to send a notification signal to a central processing unit (CPU) of the wireless modem device according to the received action signal to enable the wireless modem device to sleep or wake up. The terminal includes a USB port and a modem drive unit. | 02-02-2012 |
| 20120033718 | RECONFIGURABLE WIRELESS MODEM ADAPTER INCLUDING DIVERSITY/MIMO MODEMS - A reconfigurable wireless modem adapter is provided. The reconfigurable wireless modem adapter includes a control board and a radio frequency switch. The control board includes at least two user-data interfaces for respective at least two modems, the modems including at least one diversity/multiple-input-multiple-output (MIMO) modem. The control board is configured to communicatively couple to at least one onboard system in a vehicle and to activate one of the at least one diversity/MIMO modem interfaced to one of the at least two user-data interfaces. The radio frequency switch is communicatively coupled to the control board via a modem-select interface and the selected one of the at least one diversity/MIMO modem. The radio frequency switch communicatively couples one of at least one diversity/MIMO antenna on the vehicle to the selected one of the at least one diversity/MIMO modem based on a control signal. | 02-09-2012 |
| 20120039373 | DEVICE AND METHOD AT THE DEVICE FOR OPTIMIZING NETWORK PARAMETERS - The present invention concerns a digital subscriber line modem and a method at the modem for optimizing network parameters used for data transmission between a Digital Subscriber Line modem and a Digital Subscriber Line Access Multiplexer, comprising the steps of receiving at least one physical transmission control parameter from the Digital Subscriber Line Access Multiplexer, getting local parameters entered at the modem, the local parameters indicating the type of service transmitted between the Digital Subscriber Line modem and a Digital Subscriber Line Access Multiplexer, obtaining minimum Target Service Bit Rate based on the local parameters and optimizing the Impulse Noise Protection value and the interleaving Delay value according to the minimum Target Service Bit Rate, based on the local parameters and the at least one physical transmission control parameter. | 02-16-2012 |
| 20120044979 | SYSTEM AND METHOD FOR COMMUNICATING INFORMATION USING TIME-AND-FREQUENCY-BOUNDED BASE FUNCTIONS - Disclosed is a system and method for transmitting and receiving digital data, wherein (1) a receiving mechanism is configured to receive an incoming stream of digital information carried on at least one incoming line; (2) a weighing mechanism is configured to generate respective weighing factors using the digital information; (3) a signal generation mechanism is configured to generate a plurality of smooth Time-and-Frequency-Bounded functions; and (4) a mapping mechanism is coupled to the signal generation mechanism, wherein the mapping mechanism is configured to apply weighing factors generated by the weighing mechanism to a corresponding Time-and-Frequency-Bounded function, and subsequently summing the weighted Time-and-Frequency-Bounded functions to thereby generate a corresponding plurality of Time-and-Frequency-Bounded packets, the plurality of Time-and-Frequency-Bounded packets comprising a Time-and-Frequency-Bounded information stream, and a transmission mechanism transmits the plurality of Time-and-Frequency-Bounded packets over the transmission medium. | 02-23-2012 |
| 20120044980 | MULTI-MODE HIGH EFFICIENCY LINEAR POWER AMPLIFIER - A power amplifier includes a plurality of amplification paths in which at least one amplification path is selectively enabled and disabled, wherein each amplification path includes an output impedance modification element and an output phase shift element that is operable independently from the output impedance modification element, and wherein the output impedance modification element in each amplification path provides selective impedance for each amplification path. | 02-23-2012 |
| 20120063497 | Systems And Methods for Implementing Application Profiles and Device Classes in Power Line Communication (PLC) Environments - Systems and methods for application profiles and device classes in power line communications (PLCs) are described. In some embodiments, a PLC device may include a processor and a memory coupled to the processor. The memory may be configured to store program instructions, which may be executable by the processor to cause the PLC device to communicate with a higher-level PLC apparatus over a power line using a frequency band. The frequency band may be selected based upon an application profile and/or a device class associated with the PLC device. In some implementations, the higher-level PLC apparatus may include a PLC gateway or a data concentrator, and the PLC device may include a PLC modem or the like. Examples of application profiles include access communications, in-premises connectivity, AC charging, and/or DC charging. Device classes may represent a minimum communication data rate and/or an operating frequency band restriction of the PLC device. | 03-15-2012 |
| 20120063498 | HIGHLY FLEXIBLE AND EFFICIENT MAC TO PHY INTERFACE - A plurality of media access controllers (MACs) are time division multiplexed with one or more serializer/deserializer (SerDes) devices, wherein there are more MACs than SerDes devices and/or a single multi-rate Ethernet MAC is able to communicate with a multi-rate PHY spanning speeds from 10 megabits per second to 10 gigabits per second using the same framing mechanism and structure. | 03-15-2012 |
| 20120069881 | BROADBAND POWER AMPLIFIER - The present invention relates to a power amplifier unit ( | 03-22-2012 |
| 20120069882 | MESSENGER STRAND MOUNTED PICO-CELL RADIO - A messenger strand mounted low-power pico-cell radio, having its own environmentally controlled box, mounted on utility messenger strands, connects to the cable using the Internet protocol (IP) for back-haul, and has in-band monitor and control capability. These pico-cell radios also receive power through the same cable connection. The configuration control and monitoring is by independent discretely-managed internal mechanisms that can be remotely addressed. These internal mechanisms include the modem for backhaul, wireless radio transceiver(s), and the system management device for operation, administration, maintenance, and control. Such pico-cell radios help to provide wireless connectivity and coverage efficiently by reducing dark spots in wireless coverage. Distributing these radios in reasonable, close proximity enables wireless coverage in difficult terrains, where current high power systems fail. The radios disclosed herein eliminate the need and cost for additional power lines and IP connection lines, and are therefore easy to install and maintain. | 03-22-2012 |
| 20120069883 | Passive Selt - The present invention relates to a method for estimating properties of a transmission line by means of features of a noise spectrum generated by noise entering said transmission line at an intermediate location between the ends of the line. The invention provides possibility to estimate a number of properties, e.g. length of a portion of the transmission line, line attenuation of said Sine portion and even line termination. | 03-22-2012 |
| 20120076184 | MULTIBAND ANTENNA FOR A MOBILE DEVICE - A multiband antenna for a mobile device is disclosed. The mobile device includes a multiband antenna configured to communicate with a base station. The multiband antenna includes a ground plane, a ground plane extension, and a plurality of antenna arms. The ground plane, the ground plane extension, and the plurality of antenna arms are configured to communicate signals in multiple frequency bands, where the ground plane and the ground plane extension have a length proportional to approximately a quarter wavelength of a frequency in the multiple frequency bands. The mobile device further includes a modulator and demodulator configured to modulate signal for transmission and demodulate signal received from the base station, and a controller configured to control communication of signals using the multiband antenna and the modem. | 03-29-2012 |
| 20120076185 | APPARATUS AND METHOD FOR COMPENSATING TRANSMISSION POWER IN WIRELESS COMMUNICATION TERMINAL - Provided are an apparatus and method for compensating transmission power of a signal transmitted through a slave modem (e.g., a WiMAX modem) in a wireless communication terminal including a dual modem. A slave modem receives a digital code value corresponding to a periodically measured battery voltage value from a host modem through a General Purpose Input Output (GPIO) port. The slave modem determines a transmission power compensation value corresponding to the received digital code value from a predefined table. | 03-29-2012 |
| 20120076186 | COMMUNICATION SYSTEM AND COMMUNICATION APPARATUS - Disclosed herein is a communication system including: at least one power line communication apparatus connected via a general power line for supplying a commercial alternate current power; a communication terminal having a modem for power line communication, and a plurality of first coils having different directivities; and a coupling apparatus, connected to a power line, having a filter for attenuating an alternate current component of the power line, and a second coil arranged after the filter; wherein the communication terminal executes mutual communication with any of the power line communication apparatus connected via the general power line through proximity communication based on an electromagnetic coupling action that is generated between the plurality of first coils and the second coil when the communication terminal is brought to the proximity of a coupling surface of the coupling apparatus. | 03-29-2012 |
| 20120082196 | POWERLINE MODEM DEVICE - A broadband powerline communications device includes a plug for connection to mains electrical wiring, a broadband powerline medium interface circuit for communicating broadband data over the mains electrical wiring, at least one electrical socket for providing mains electrical power from the mains electrical wiring to a further device plugged thereto, and energy consumption monitoring circuitry for monitoring the energy consumption of the further device. These components are formed in a housing with the plug is integrally formed with the housing or separated from the housing by a length of power cable. The device may also include a communications socket for wired communications and/or a wireless router for servicing wireless communications. The device may further include a mains filter with one or more components of the mains filter used in determining the instantaneous level of the voltage and/or current supplied to the further device. | 04-05-2012 |
| 20120093204 | PROCESSOR, MODEM AND METHOD FOR CANCELLING ALIEN NOISE IN COORDINATED DIGITAL SUBSCRIBER LINES - A method of cancelling alien noise in coordinated DSL lines, a method of smoothing an alien noise covariance estimate, and a processor and modem for cancelling alien noise in coordinated DSL lines. In one embodiment, the method of cancelling alien noise includes: (1) estimating alien noise vectors for at least some training symbols, (2) arranging the alien noise vectors in a matrix dimensioned for a number of coordinated DSL lines, (3) orthonormally transforming the matrix into a lower-triangular matrix and (4) computing alien noise prediction filters from the lower-triangular matrix. | 04-19-2012 |
| 20120093205 | ELECTRONIC DEVICE WITH REMOVABLE ACCESSORY - An electronic device is arranged to receive a removable wireless remote data transmission accessory, in particular of the 3G “stick modem” or Wifi type, the accessory including an accessory body, at least one radio antenna, an accessory connection element linked to the accessory body, the device including a device connection element, arranged to connect with the removable accessory and to be coupled with the accessory connection element, characterized in that the device is arranged to receive the removable accessory in a slot, the device being structured so as to allow the radio antenna to transmit data remotely when the accessory body and/or the radio antenna is at least partially inserted in the slot, in an active data transmission position of the accessory. The invention relates in particular to devices receiving removable accessories of the “3G modem” or “Wifi” type. | 04-19-2012 |
| 20120093206 | RADIO DATA SYSTEM MONOPHONIC DEMODULATION - A method of switching between Coherent and Non-Coherent demodulation based on computed metrics, in cases where stereo FM broadcasting stations do not adhere to RDS broadcast specifications. Re-utilizes existing hardware to demodulate RDS data in mono. The residual frequency offset is resolved using a Non Coherent demodulator and a time tracking algorithm. RDS data relies on the 57 kHz sub-carrier that is generated using 19 kHz pilot tone. In Mono broadcasting pilot tone is not present. A local 57 kHz free running signal is generated, and this is then used to demodulate the RDS data in Non-Coherent mode. | 04-19-2012 |
| 20120093207 | Manufacturing Process - The invention provides a method of manufacturing a user equipment comprising a wireless modem, a method of activating a user equipment as a wireless modem, and a corresponding server and user equipment. A processor is produced for executing wireless modem code to operate the processor as a wireless modem, the processor having a writeable, non-volatile memory for storing the wireless modem code but being produced with at least a substantive portion of said wireless modem code not installed on said memory or otherwise, thus rendering the processor inoperative as a wireless modem. The processor is assembled into a user equipment and supplied to an end-user still without the substantive portion of wireless modem code installed. In response to an indication from the end-user requesting activation of the user equipment as a wireless modem, at least said substantive portion of wireless modem code is then distributed to the end-user for installation on the memory the user equipment's processor. | 04-19-2012 |
| 20120099627 | INTERFERENCE MITIGATION FOR BROADBAND OVER POWER LINE - Systems and methods to exchange data between a vehicle and a remote computer system, are disclosed. In one embodiment, a system to exchange data between a vehicle and a remote computer system comprises at least one power line adapted to couple to the vehicle, a local area network, a modem coupled to the local area network and the at least one power line, and a power line interference server comprising logic to allocate communication channels within a specified frequency range on the power line. Other embodiments may be described. | 04-26-2012 |
| 20120099628 | Symbol-Level Repetition Coding in Power Line Communications - Systems and methods for implementing symbol-level repetition coding in power line communications (PLC) are described. In some embodiments, these systems and methods may provide reliable communication in severe channel environments of PLC networks, at least in part, by changing the forward error correction (FEC) used by various devices operating within current PLC systems. For example, a method may include receiving a PLC signal and applying convolutional encoding to the received signal, the convolutional encoding producing an encoded signal. The method may also include performing a subcarrier modulation operation upon the encoded signal, the subcarrier modulation operation producing a modulated signal. The method may further include applying symbol-level repetition coding to the modulated signal, the symbol-level repetition coding producing a repetitious signal. In some cases, one or more distinct repetition patterns may be applied to different symbols or portions thereof. The repetitious signal may then be transmitted over a power line. | 04-26-2012 |
| 20120099629 | Communications Wiring Noise Level Monitor and Alarm Indicator - In an apparatus and method of testing the capacity of a network to support DSL services, a test device is coupled to a pair of wires (e.g., Tip-Ring) that support DSL services between ATU-C and ATU-R modems. In operation, the test device: samples for a DC line feed or potential on the wires when the ATU-R and ATU-C modems are operatively connected via the wires; samples for AC noise present on the wires when the ATU-R modem is electrically isolated from the ATU-C modem which is operatively coupled to the wires; samples for DSL signals output by the ATU-R modem when the ATU-C modem is electrically isolated from the ATU-R modem; and samples for DSL signals on the wires when the ATU-R modem is operatively coupled to the ATU-C modem via the wires. Based on these samples, the test device determines the capacity of the network to support DSL services. | 04-26-2012 |
| 20120106605 | Detection and Correction of Impulse Noise in Communication Channel Crosstalk Estimates - An access node of a communication system is configured to control crosstalk between channels of the system. A set of L distinct and linearly independent pilot signals is generated, with each pilot signal having length n, where n>L such that L−n linearly independent n-tuples are available for use in detection and correction of impulse noise. In an illustrative embodiment, the L pilot signals are mutually orthogonal. The L pilot signals are transmitted over respective ones of the channels, and one or more of the pilot signals as received over their respective channels are processed to detect the presence of impulse noise. A crosstalk estimate corrected for the detected impulse noise is generated and utilized to control crosstalk between two or more of the channels. | 05-03-2012 |
| 20120106606 | METHOD AND DEVICE FOR REDUCING INTERFERENCE BETWEEN A POWER LINE CARRIER SIGNAL AND A VDSL TYPE SIGNAL - The present invention concerns a method of reducing interference between a carrier current signal (S | 05-03-2012 |
| 20120114027 | DATA PROCESSING TERMINAL SYSTEM AND TRANSMITTING AND RECEIVING METHOD USING THE SAME - An information processing terminal system includes an information processing terminal ( | 05-10-2012 |
| 20120120993 | Resynchronization Method for Recovering from Sleep Mode and Apparatuses Using the Same - A wireless communications device connected to a service network with a synchronized timing pattern therebetween is provided. In the wireless communications device, a wireless modem is configured to enable wireless signal transceiving from and to the service network in a non-sleep mode and disable wireless signal transceiving from and to the service network in a sleep mode. Also in the wireless communications device, a synchronization module is configured to initialize a first counter with a current time in the synchronized timing pattern in response to a first signal triggering the wireless modem to enter the sleep mode from the non-sleep mode, and enable counting of the first counter in a low-rate clock for the sleep mode. The synchronization module further provides the counted value of the first counter to the wireless modem to resynchronize with the service network in response to a second signal triggering the wireless modem to recover from the sleep mode to the non-sleep mode. | 05-17-2012 |
| 20120120994 | AUTOMATED APPLIANCE REGISTRATION - A system for automatically registering an appliance, including a storage housed within an electrical appliance for storing identifying information about the electrical appliance and its purchase, and a communication card including a controller, an interface connector for connecting the communication card to the electrical appliance, a wireless cellular modem for transmitting data, and a card memory for storing program code, wherein when the communication card is connected to the electrical appliance via the interface connector, the program code automatically instructs the controller to collect the identifying information about the electrical appliance and its purchase, to collect owner information and to transmit at least a portion of the collected information to at least one remote recipient using the cellular modem. A method is also described and claimed. | 05-17-2012 |
| 20120120995 | Modem Unit and Mobile Communication Unit - A modem unit includes a first semiconductor die that includes a power management unit and an embedded flash memory. A mobile communication unit includes a modem unit residing on a first semiconductor die. The first semiconductor die also includes a power management unit and an embedded flash memory. | 05-17-2012 |
| 20120128045 | METHODS AND APPARATUS FOR INTELLIGENT POWER REDUCTION IN COMMUNICATIONS SYSTEMS - Methods and apparatus for power control in a communications device are described. Bonding of channels in a modem may be dynamically adjusted responsive to user activity or demand for bandwidth. Bonded channel configurations may be adjusted to single channel configurations for low power operation. Modem configuration may be dynamically adjusted so as to maintain only required synchronization and system information to facilitate rapid data transfer resumption upon demand. | 05-24-2012 |
| 20120128046 | RADIO COMMUNICATION TERMINAL DEVICE AND RADIO COMMUNICATION METHOD - A radio communication terminal device includes a storage unit that stores group information indicating a group of frequencies belonging to the same communication carrier, a communication-carrier searching unit that selects one of to-be-selected frequencies, the to-be-selected frequencies being frequencies at which radio waves arrive, and that searches for a communication carrier using the selected frequency on a basis of identification information received at the selected frequency, and a search-execution controlling unit that excludes, from the to-be-selected frequencies, another frequency that belongs to the group information including the selected frequency and that is other than the selected frequency. | 05-24-2012 |
| 20120128047 | BURST PROCESSING MODEM - A burst processing modem. Implementations may include a receive side including a channelizer adapted to process a plurality of channels and write a plurality of frames to a receive RAM array. A receive frame state machine may be adapted to generate a timing signal using a burst time plan for the plurality of frames. A demodulator may be coupled with the receive RAM array and adapted to read from the receive RAM array only the one or more bursts from the plurality of frames indicated by the timing signal. A transmit side may include a modulator coupled with a transmit frame state machine, with a transmit RAM array, and a combiner bank. The combiner bank may read the modulated plurality of channels from the transmit RAM array and assemble a plurality of frames using a timing signal generated from a burst time plan by the transmit frame state machine. | 05-24-2012 |
| 20120134396 | MULTIMODE MULTICARRIER MODE SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 05-31-2012 |
| 20120134397 | METHOD AND APPARATUS FOR DSL PERFORMANCE ENHANCEMENT IN A DSL NETWORK - A Digital Subscriber Line (DSL) Management Center (DMC) coupled to a DSL network includes a data collection module that receives information regarding the DSL network from a plurality of sources. An analysis module is coupled to the data collection module to analyze the received information and issue a command for one or more of a plurality of DSL performance enhancement devices to optimize their operation. A command signal generation module is coupled to the analysis module to receive the issued command from the analysis module and generate a corresponding command signal for transmission to one or more of the DSL performance enhancement devices. | 05-31-2012 |
| 20120140803 | METHODS, APPARATUS AND ARTICLES OF MANUFACTURE TO ALLOCATE PORTS TO VECTORED DIGITAL SUBSCRIBER LINE (DSL) GROUPS - Example methods, apparatus and articles of manufacture to allocate ports to vectored digital subscriber line (DSL) groups are disclosed. A disclosed example method includes obtaining data representative of a statistical distribution of service penetration for a non-vectored DSL service, estimating an expected vectored DSL group size from the data, and configuring a DSL access multiplexer (DSLAM) to reserve a number of ports of the DSLAM for a vectored DSL group based on the expected vectored DSL group size. | 06-07-2012 |
| 20120147936 | UNIVERSAL REAL-TIME INTERFACE FOR WIRELESS MODEMS - The apparatus and methods described herein are used to provide data between an application and a modem. One method includes providing data in application data units from the application to the modem, transmitting the data from the modem to a receiver, and reporting by the modem to the application, whether each application data unit has been successfully transmitted from the modem to the receiver. | 06-14-2012 |
| 20120147937 | METHODS, APPARATUS, AND SYSTEMS FOR SECURE DEMAND PAGING AND OTHER PAGING OPERATIONS FOR PROCESSOR DEVICES - A secure demand paging (SDP) system includes a dynamic random access memory (DRAM), a microprocessor having a secure internal memory and coupled to said DRAM, and a non-volatile memory storing a representation of operations accessible by the microprocessor. The stored representation of operations includes a coded physical representation of operations to configure an SDP space in the DRAM, to organize the SDP space into virtual machine contexts, to organize at least one of the virtual machine contexts into block book keeping blocks and book keeping spaces in the block book keeping blocks, and to execute a secure demand paging process between said secure internal memory and said DRAM. | 06-14-2012 |
| 20120147938 | COMMUNICATIONS SYSTEM USING ADAPTIVE FREQUENCY NOTCHING - A communications system includes a receiver unit connected with a transmission channel. The receiver unit determines a signal power of a first communications signal received over the transmission channel. A transmitter unit is connected with the transmission channel and transmits a second communications signal, wherein a gain of the communications signal being output by the transmitter unit is controllable. A control unit controls the gain of the transmitter unit in response to the determined signal power. At the receiver unit, detection of broadcast signal ingress during data communication is improved and methods for avoiding disturbances between coexisting communications systems may become more reliable. Different distances between successive training symbols suitable for channel estimation may be provided to enhance the noise measurement. | 06-14-2012 |
| 20120155521 | COMMUNICATION APPARATUS, INTEGRATED CIRCUIT, AND COMMUNICATION METHOD - In communication method for communicating via a transmission channel to which first communication apparatuses communicating based on a first communication system, second communication apparatuses communicating based on a second communication system, and third communication apparatuses communicating based on a third communication system are connected, a data transmission domain and a notification domain for notifying a data transmission within the data transmission domain are allocated to the first communication apparatuses, the second communication apparatuses, and the third communication apparatuses, respectively. In the communication method, notices of the data transmission for each of the first communication apparatuses, the second communication apparatuses and the third communication apparatuses are transmitted within the notification domain, and the data transmission domain is reallocated in accordance with the notices transmitted from the first, second and third communication apparatuses. | 06-21-2012 |
| 20120163434 | DIGITAL RECEIVER FOR MOBILE COMMUNICATION AND OPERATING METHOD - This invention is regarding mobile communication digital receiver and operating methods of a digital front end, which uses a digital mixer to change the center frequency to DC; a digital mixer allows the user to evade I/Q mismatch challenges; an Analog-to-Digital Converter (ADC) converts a Radio Frequency analog signal to a digital signal; a digital mixer converts the ADC's output signal's center frequency to DC; a digital front end has an automatic gain control over multiple frequency bands and contains a noise filter; a modem receives the digital front end's output and demodulates the signal. | 06-28-2012 |
| 20120163435 | POWER LINE COMMUNICATIONS METHOD AND APPARATUS - Apparatus, for transmitting and receiving signals over residential electrical cables, includes a processor, at least one transmitter and at least one receiver. The transmitter and the receiver are coupled with the processor, for respectively transmitting and receiving the signals. The apparatus is coupled with an electrical cable including at least one active wire, one neutral wire and one ground wire. At least two of the wires form receive wire pairs wherein at least two of the wires form at least one transmit wire pair. The processor enables the at least one receiver to be coupled with the receive wire pairs and wherein the processor dynamically switches a coupling of the at least one receiver to another one of the plurality of receive wire pairs. | 06-28-2012 |
| 20120163436 | METHOD FOR TRANSMITTING A SIGNAL VIA A POWER LINE NETWORK, TRANSMITTER, RECEIVER, POWER LINE COMMUNICATION MODEM AND POWER LINE COMMUNICATION SYSTEM - A method for receiving signals over a power line network, within the power line network at least one transmitter and at least one receiver communicate via at least two channels, each of the channels having a respective feeding port of the at least one transmitter and a respective receiving port of the at least one receiver, and the receiver having at least two receiving ports. The method determines a channel characteristic of each of the channels, applies a receiving port selection criterion based on the channel characteristic, and selects an excluded receiving port among the at least two receiving ports based on the receiving port selection criterion, the excluded receiving port is not used during further communication. | 06-28-2012 |
| 20120177093 | METHOD FOR REDUCING INTERFERENCES BETWEEN A FIRST CARRIER CURRENT SIGNAL TRANSMITTED BETWEEN MODEMS OF A POWER GRID AND A SECOND SIGNAL TRANSMITTED BETWEEN MODEMS OF ANOTHER GRID - The present invention concerns a method and device for reducing interference between a first signal of the carrier current type (Se) transmitted between modems (M | 07-12-2012 |
| 20120183025 | Optimal signal processing for twisted pair transceivers - A receiver that easily receives signals from transmission channels having long cable lengths is presented. The receiver includes an analog pre-filter that removes distortions and intersymbol interference from a predetermined transmission channel. The analog pre-filter is coupled with a digital receiver that provides digital equalization. The combination of analog equalization with digital equalization allows for simplified digital equalization while retaining the versatility of digital signal processing. | 07-19-2012 |
| 20120183026 | Crosstalk Limitation between Modems - A device for providing access to a data communication network for modems is connected to the modems via a set of communication lines. The modems include a first group supporting vectoring and a second group not supporting vectoring. The device investigates the expected value of an element in a synchronization interval to be received by a modem in the second group, investigates the value of an element of at least one data sequence assigned to the communication line of this modem, compares the values, selects the element of the investigated data sequence for transmission if the element value corresponds to the expected value and transmits the selected element and corresponding elements of a number of pilot sequences assigned to the first group of modems via the set of communication lines. | 07-19-2012 |
| 20120183027 | Dual digital to analog converters (DACs) with codeword parsing - Dual digital to analog converters (DACs) with codeword parsing. With respect to a codeword that is provided to a DAC, a processing module (e.g., a rollover processor) operates to divide, partition, etc. the codeword into different respective sub-codewords as may be provided to two or more DAC's. Adaptation with respect to differently generated sub-codewords with respect to different respective codewords may be made in terms of any one or more of a variety of characteristics, including sub-codeword width (e.g., the number of bits included within a sub-codeword), quantization steps, etc. Moreover, such adaptation may be in consideration of any one or more local and/or remote operating characteristics of one or more devices, communication links, etc. within a communication system or network. Different respective sub-codewords undergo processing by different respective DAC's in generating respective analog signals for combination in generating a final or output analog signal. | 07-19-2012 |
| 20120183028 | APPARATUS AND METHOD FOR RANGING IN DISTRIBUTED ANTENNA SYSTEM - An apparatus and a method for ranging in a distributed antenna system are provided. A method for an operation of a Mobile Station (MS) in a distributed antenna system includes obtaining per-group ranging code configuration information indicating a ranging code allocation for each antenna port group, determining an antenna port group that the MS belongs to, and performing a ranging procedure by one of a plurality of ranging codes allocated to the antenna port group that the MS belongs to. | 07-19-2012 |
| 20120183029 | CELLULAR MODEM PROCESSING - A cellular mobile station including a modem processor and memory. The memory includes instructions for the modem processor to perform layer | 07-19-2012 |
| 20120189042 | Building, Transmitting, and Receiving Robust Protocol Data Units in Power Line Communications - Systems and methods for building, transmitting, and receiving robust protocol data units (PDUs) in power line communications (PLC) are described. In some embodiments, a method may include receiving a PDU, applying bit-level repetition to at least a portion of the PDU to create a repeated portion, block interleaving two or more symbols corresponding to the repeated portion to create a block interleaved portion, inserting pilot tones in the block interleaved portion, and modulating each tone in the block interleaved portion with respect to a nearest one of the inserted pilot tones to create a robust PDU. In some implementations, the robust PDU may include a first header portion carrying information encoded using a first version of a PLC protocol (e.g., a legacy standard) and a second header portion carrying information encoded using a second version of the PLC protocol (e.g., a newer version of the same standard). | 07-26-2012 |
| 20120195355 | Power Distribution Device Communications Platform - A communications system is provided for direct communications between powered elements. A controller hub injects a first message via a modulated communication signal onto a branch circuit using a hub-side power line communication (PLC) coupler. An element-side PLC coupler associated with a powered element in a set of powered elements detects the first message and sends an interrupt to a mini-controller in the powered element. The mini-controller receives the interrupt from the element-side PLC coupler, extracts the first message using the element-side PLC coupler; reads a destination identifier in the first message; compares the destination identifier in the first message to a mini-controller identifier in the mini-controller; sends an acknowledgement message back to the controller hub in response to the destination identifier in the first message matching the mini-controller identifier, and forwards the first message to the powered element. The powered element performs a command identified in the first message. | 08-02-2012 |
| 20120213258 | CABLE MODEM AND RANGING METHOD - A cable modem executes periodic ranging with a cable modem terminal system and records a time point at which the periodic ranging is completed. The cable modem obtains an un-ranging time interval during which the cable modem terminal system permits the cable modem not to execute periodic ranging with the cable modem terminal system, and sets a sleep time interval during which the cable modem does not execute periodic ranging with the cable modem terminal system according to the un-ranging time interval. Then, the cable modem shuts off a power amplifier in the cable modem in the sleep time interval if the cable modem does not transmit packets during the preset time interval before the recorded time point. | 08-23-2012 |
| 20120213259 | CABLE MODEM FOR NETWORK MEASUREMENTS - The invention relates to measurement-capable cable modems for cable networks. Idle receivers and transmitters of a cable modem are used to perform upstream and downstream measurements on DOCSIS and non-DOCSIS digital and analog TV channels without disrupting customer services. A currently idle receiver is tuned to a target downstream channel under directions of a modem measurement controller, and is queried by the measurement controller to perform a measurement as specified by a measurement plan. A currently idle transmitter is tuned to a target upstream channel to transmit a test signal that is received by an upstream measurement system. Measurements are communicated to a central measurement controller, for example located at the headend, which collects measurements from a plurality of cable modems and the upstream measurement system. The resulting monitoring system performs cable network wide monitoring using existing cable modems without requiring additional monitoring devices. | 08-23-2012 |
| 20120213260 | Discrete Spurious Leakage Cancellation for Use in a Cable Modem - In a novel apparatus for and method of discrete spurious frequency leakage cancellation a radio frequency RF switch is used to couple the upstream path signal to the CATV cable only during transmission bursts. In between transmission bursts, the upstream signal is disconnected from the CATV cable. In a circuit for canceling frequency spurs from a victim signal, a radio frequency (RF) switch is operative to connect and disconnect the victim signal to/from the output in accordance with a switch control signal which is generated by a switch control module. The victim signal is coupled to said RF switch output during transmission bursts only. | 08-23-2012 |
| 20120219046 | MULTIMODE MULTICARRIER MODEM SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 08-30-2012 |
| 20120219047 | SYSTEMS AND METHODS FOR A MULTICARRIER MODULATION SYSTEM WITH A VARIABLE MARGIN - A multicarrier modem has a plurality of carriers over which data is transmitted. By assigning, foe example, one or more different margins to the individual carriers the data rate and impairment immunity can be increased. | 08-30-2012 |
| 20120224617 | Detection, communication and control in multimode cellular, TDMA, GSM, spread spectrum, CDMA, OFDM WiLAN and WiFi systems - Detection device for detection and generation of detection device generated signal, processed with remote control device generated remote control signal, with location finder or location tracker or navigation signal and with Modulation Demodulation (Modem) Format Selectable (MFS) communication signal. Processor for processing a digital signal into cross-correlated in-phase and quadrature-phase filtered signal and for processing a voice signal into Orthogonal Frequency Division Multiplexed (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) signal. Detection device generated signal and location finder signal, with OFDM or OFDMA processed voice signal is used in a Wireless Local Area Network (WLAN) and in Voice over Internet Protocol (VoIP) network. Detection device generated signal and location finder signal with Time Division Multiple Access (TDMA), Global Mobile System (GSM) and spread spectrum Code Division Multiple Access (CDMA) signal is used in a cellular network. Polar and quadrature modulator and two antenna transmitter for transmission of provided processed signal. Transmitter with two amplifiers operated in separate radio frequency (RF) bands. One transmitter is operated as a Non-Linearly Amplified (NLA) transmitter and the other transmitter is operated as a linearly amplified or linearized amplifier transmitter. Two antenna receiver and demodulator. Diversity receiver and demodulator. | 09-06-2012 |
| 20120230377 | Multiband Antenna for a Mobile Device - A multiband antenna for a mobile device is disclosed. The multiband antenna includes a plurality of flexible antenna arms configured to communicate signals in multiple frequency bands, a flexible antenna counterpoise, a battery configured to provide power to the multiband antenna, and control logic configured to control communication of signals of the multiband antenna, where the plurality of flexible antenna arms, the flexible antenna counterpoise, the battery, and the control logic are bonded to a flexible insulation material. The multiband antenna further includes at least a portion of circuit schematics that connect the plurality of flexible antenna arms, the flexible antenna counterpoise, the battery and the control logic are placed and routed on the flexible insulation material. | 09-13-2012 |
| 20120230378 | MODEM FOR NETWORK SYSTEM AND OPERATING METHOD THEREOF - A modem for network system which is mounted in an electric home appliance to communicate with an external service device, to which an additional modem may be connected, and to which one or more electric home appliances may be connected and an operating method thereof. The modem has a plurality of input/output ports, functions of which are changed using a switch so that an additional modem or an electric home appliance is connected to the modem. When two modems using the same interface are connected to an electric home appliance, connection of the modems to the electric home appliance is easily achieved via the existing ports without adding a new input/output interface to the electric home appliance. Also, when one or more electric home appliances jointly use a modem, additional connection of the electric home appliances is achieved using a switch without using an additional distributor. | 09-13-2012 |
| 20120236913 | System and Method for Dynamic Allocation of Spectrum - Embodiments of a communication device and a communication system are provided to allow transmitting video, audio, and data content between two or more nodes of a communications network comprised party of twisted pair links. Also provided, is an embodiment of a telecommunication system for transmitting spectrum, comprising transmission bandwidths that carry signals such as, video, audio, data and other services, over twisted pairs of telephone wires. Such a system being adapted for dynamic assignment and management of frequency bands of spectrum over twisted pair links. | 09-20-2012 |
| 20120236914 | In-Band Modem Signals for Use on a Cellular Telephone Voice Channel - Methods and systems for communicating data on a cellular telephone voice channel are disclosed. The method includes segmenting a data stream into one or more n-bit symbols; identifying a human vocal sound corresponding to each n-bit symbol according to a predetermined assignment of each n-bit symbol to a human vocal sound; and retrieving data representing the human vocal sound, wherein data representing the human vocal sound is configured to be passed through a vocoder. | 09-20-2012 |
| 20120243589 | Systems and Methods for Flow Control of a Remote Transmitter - Systems and methods are provided to enable a near-end receiver to control the far-end transmitter's data transmission such that the near-end receiver's TC data buffers do not overflow. In an embodiment, a high waterline and low waterline implemented into a near-end receiver are used to determine when the near-end receiver's TC data buffers are near maximum capacity. In an embodiment, the near-end receiver transmits a Packet Transfer Mode (PTM) All Idle Out Of Sync (AIOOS) codeword to the far-end transmitter when the high waterline is reached, and the near-end receiver stops transmitting the AIOOS codeword when the low waterline is reached. | 09-27-2012 |
| 20120243590 | DEVICE FOR USE IN A POWER LINE COMMUNICATION SYSTEM, POWER LINE COMMUNICATION SYSTEMS AND POWER LINE COMMUNICATION METHOD - A device including a power input supplying external AC power to the device via a power cord, a filter filtering noise from outside of the supplied external AC power and thereby generating a filtered AC power, at least one power socket supplying the filtered AC power to at least one other device, and a PLC modem configured to be connected to the at least one power socket and to transmit data to or receive data from the at least one other device via power line communication using the filtered AC power. The device may be used in power line communication systems. A power line communication method uses the device for isolating a power line communication network from a mains grid. | 09-27-2012 |
| 20120250744 | METHOD AND APPARATUS FOR OPERATING A DIGITAL SUBSCRIBER LINE ARRANGEMENT - A digital subscriber line arrangement includes a downstream modem, an upstream modem and a copper pair connection between the modems. Each modem includes electrical length estimation function code means which causes the respective modem to measure the attenuation of signals transmitted by the other modem at a plurality of different frequencies, and to combine these measurements, or functions thereof, together to form a combined attenuation measure and to use this combined measure to form an electrical length estimation, KL0bis. The downstream modem is operable to transmit its electrical length estimation to the upstream modem, and the upstream modem is operable to generate a definitive electrical length estimation in dependence upon both the received estimation from the downstream modem and the estimation made by the upstream modem. Having generated a definitive electrical length estimation, the upstream modem is operable to transmit this to the downstream modem. Finally, the downstream modem includes Upstream Power Back Off mask generation function code means which causes the downstream modem to use the received definitive electrical length estimation to generate an upstream power back off mask for use in controlling the amount of power used when transmitting upstream signals over the copper pair connection to the upstream modem in one or more upstream transmission bands. | 10-04-2012 |
| 20120250745 | SYSTEM AND METHOD FOR RF INTERFERENCE MITIGATION THROUGH MEMORY CLOCK FREQUENCY CONTROL - Systems and methods are provided to prevent or mitigate noise interference resulting from the operation of a memory device, such as a microSD card that is operating in proximity to a radio of a communications device. Noise interference is managed by shifting the rate at which the microSD card is accessed so that the resulting noise does not match or interfere with the particular radio channel(s) being utilized by radio at the time of the microSD card access. That is, a determination/knowledge of the radio receive channels being utilized can be leveraged to intelligently control the clock frequency of the microSD card, such that the harmonics of the microSD card clock do not result in interfering noise at the particular radio receive frequencies. | 10-04-2012 |
| 20120257657 | DYNAMIC ELECTROMAGNETIC RADIATION EMISSION CONTROL IN WIRELESS COMMUNICATION DEVICES - Methods and apparatus for active and passive dynamic electromagnetic radiation emission control in wireless devices by limiting transmit power in individual devices is disclosed. In various embodiments, electromagnetic radiation emissions from wireless devices are dynamically controlled using variable transmit power limits acquired through the use of RF ID/NFC tags that indicate transmit power limits, where such power limiting tags are embedded in clothing, furniture, etc., communication of transmit power limits over Bluetooth or other short range technologies, location-based transmit power limits, user input transmit power limits. Controlling the transmit power of mobiles as well as femtocells/access points for the purpose of minimizing SAR using variable transmit power limits is detailed. | 10-11-2012 |
| 20120257658 | COMMUNICATION DEVICE AND METHOD FOR PROCESSING UNSOLICITED RESULT CODE - In a method for processing unsolicited result codes (URCs) of a communication device, keywords of a URC are extracted when the URC is sent from a modem of the communication device to an operating system of the communication device. A digital code of the keywords is obtained by encoding the extracted keywords. A function of the communication device is executed to process the received URC according to the digital code of the keywords. | 10-11-2012 |
| 20120257659 | MASTER UNIT, REMOTE UNIT AND MULTIBAND TRANSMISSION SYSTEM - A master unit and a remote unit is provided for a multiband transmission system for distributing and combining signals of at least one wireless communication network and at least one digital network. A reference frequency generator is arranged in the master unit, the reference frequency generator being designed to clock a master modem for converting the signals of the at least one digital network. The reference frequency signal emitted by the reference frequency signal is restored via a reference frequency receiver and is used for closing a remote modem that is located there for demodulation. | 10-11-2012 |
| 20120263216 | SYSTEMS AND METHODS FOR CHARACTERIZING TRANSMISSION LINES USING BROADBAND SIGNALS IN A MULTI-CARRIER DSL ENVIRONMENT - Using DSL modems as data collectors, the modems processes the data to, for example, allow easier interpretation of the line characteristics. In particular, the modems postprocess the data including calibration, filter compensation, determination of the SNR medley from the bits and gains tables and rate conversion. The interpretation process uses the postprocessed data and determines loop characterization, interferer detection, a data reduction estimation and a data rate estimation. The outputs of these determinations least allow for the characterization of the line conditions between the two modems. | 10-18-2012 |
| 20120269242 | Frequency Spectrum and Modulation Scheme Allocation for High Speed Data Networks - Embodiments provide solutions to reduce power utilization (either at individual cable modems or in the overall network) in future cable modem networks. Particularly, embodiments seek to reduce power utilization at individual cable modems and in the overall network, by allocating upstream frequency bands and/or transmission modulation schemes among cable modems while accounting for cable loss experienced by individual upstream cable modem transmissions. According to embodiments, frequency spectrum and modulation scheme allocation techniques are provided to optimize power utilization and enable lower upstream transmission power by cable modems while maintaining similar signal strength of received signals or lower signal strength with reduced SNR requirements using lower capacity modulation at the headend. | 10-25-2012 |
| 20120281743 | METHOD AND SYSTEM FOR REHOMING A DIGITAL SUBSCRIBER LINE ACCESS MULTIPLEXER - Rehoming a DLSAM between ports residing on a first switch includes establishing a physical loop-back circuit between a second port and a temporary input port of the first switch; establishing an ePVC between the input port and a first port, the first port coupled to a first connection; removing a PVC and establishing a new PVC; routing data between the second switch and the DSLAM via the new PVC, the circuit, the ePVC, and the first connection between the first switch and the DSLAM; removing the circuit from the second port; establishing a second connection between the second port and the DSLAM; routing data between the second switch and the DSLAM via the new PVC and the second connection; removing the ePVC between the first port and the temporary input port; and disconnecting the first connection between the first port of the first switch and the DSLAM. | 11-08-2012 |
| 20120287976 | NETWORK DEVICE RELATING TO DIGITAL SUBSCRIBER LINE - A network device relating to a digital subscriber line (DSL) such as an asymmetrical DSL (ADSL) or a very high bit rate DSL (VDSL) is provided. In the present invention, the capacitors equipped into the network device are separated and grouped into two independent groups. When the network device runs out of power, the energy of one of the two independent groups is provided for generating the dying gasp signal, and the energy of the other of the two independent groups is provided for amplifying and transmitting the dying gasp signal to a Central Office (CO). Accordingly, the CO can be accurately known whether the network device runs out of power or not, and the respective capacitances of the two independent groups can be significantly reduced so as to reduce the cost of the network device. | 11-15-2012 |
| 20120287977 | CLOCK DISTRIBUTION ARCHITECTURE FOR DUAL INTEGRATED CORE ENGINE TRANSCEIVER FOR USE IN RADIO SYSTEM - A method and apparatus of minimizing corruption of a reference clock to a RF circuitry in a radio system is disclosed. A DICE-T receives a reference clock in a Low Voltage Differential Signal (LVDS) format from a GVA. The DICE-T personality card converts the reference clock signal into an analog signal. The analog signal is supplied to the Core Engine RF card and the LVDS format signal is supplied to the Core Engine modem for local clocking. The Core Engine RF feeds the analog signal into a programmable phase locked loop chip to generate all the clocks required for RF processing. The analog signal is also used to provide the clocks to the ADC and DAC of core engine modem. By routing the reference clock directly to the RF card then deriving the modem clocks, the phase noise of the reference clock is reduced. | 11-15-2012 |
| 20120287978 | COMMUNICATION UNIT, INTEGRATED CIRCUIT AND METHOD OF DIVERSE POLARIZATION - A method for processing at least one polarization type of at least one wireless signal by a communication unit operably couplable to an antenna arrangement that comprises at least two orthogonally polarized antenna elements. The method comprises processing at least one signal radiated by at least one first antenna element of the antenna arrangement; and processing the at least one signal where processing comprises at least applying at least one digital complex scaling operation on the at least one signal radiated by at least one second antenna element of orthogonal polarization to the at least one first antenna element of the antenna arrangement thereby radiating at least one wireless signal of at least one non-native polarization type. | 11-15-2012 |
| 20120294341 | HYBRID CIRCUIT FOR VERY-HIGH-SPEED DIGITAL SUBSCRIBER LINE - A hybrid circuit for a Very-High-Speed Digital Subscriber Line (VDSL) blocks noise and includes a transceiving unit, a voltage transformation module, a direct current (DC) blocking capacitor, a receiving unit, and a transmitting unit. The voltage transformation module blocks noise generated as a result of transmission of an upstream signal and a downstream signal at the transceiving unit, and includes a first voltage transformation unit and a second voltage transformation unit. The DC blocking capacitor is series-connected between primary coils of the first and second voltage transformation units for preventing the direct current in the VDSL from affecting the transmission of the upstream signal and the downstream signal. Accordingly, the hybrid circuit simplifies the circuit design of the VDSL, cuts costs incurred by electronic components, and reduces the area required for circuit layout. | 11-22-2012 |
| 20120294342 | POWER LINE COMMUNICATION MODEM, POWER LINE COMMUNICATION SYSTEM, POWER LINE COMMUNICATION METHOD - A power line communication modem is provided, including a connection element configured to connect the power line communication modem to at least three wires of a power line network; a transmitter configured to transmit a first signal via a first combination of at least two wires of the at least three wires and to transmit a second signal via a second combination of at least two wires of the at least three wires; a controller adapted to individually control a transmit power of the first signal and the second signal. A corresponding power line communication system and a power line communication method are provided as well. | 11-22-2012 |
| 20120300819 | SELECTIVELY DISABLING OR ENABLING MULTIPLE TRANSMIT CHANNEL MODE OPERATIONS FOR CABLE MODEMS CAPABLE THEREOF - Methods and apparatuses for enabling or disabling MTC mode operations for a plurality of CPE devices in a MAC domain are provided. A system operator can control enabling MTC mode operations for certain CPE devices capable of MTC mode operations in a MAC domain by setting a control attribute in a CMTS enabled for MTC mode operations for the MAC domain. | 11-29-2012 |
| 20120300820 | HIGH PERFORMANCE PLC CLUSTER SYSTEM - A device comprises a power input for supplying an external AC power to the device via a power cord, a filter for filtering noise from the outside out of the supplied external AC power and for thereby generating a filtered AC power, at least one power socket for supplying the filtered AC power to at least one other device, a PLC modem configured to be connected to the at least one power socket and to transmit data to or receive data from the at least one other device via power line communication using the filtered AC power, and a managing means configured to establish a data connection with the at least one other device and to detect whether the at least one other device is capable of PLC functionality. A respective power line communication system and a respective power line communication method are also proposed. | 11-29-2012 |
| 20120314744 | PHY PAYLOAD OVER MULTIPLE TONE MASKS USING SINGLE TONE MASK PHY HEADER INFORMATION - A method of powerline communications (PLC) includes compiling a data frame for physical layer (PHY) by a first communications device at a first communications node on a powerline of a PLC network. The data frame includes a single tone PHY header portion and a data payload portion in a set of tones including at least one tone having a frequency different from a frequency of the single tone. The PHY header portion includes tone mask identification information identifying the set of tones. The first communications device transmits the data frame over the powerline to a second communications device at a second communications node on the powerline. The second communications device receives the data frame, and decodes the data payload using the tone mask identification information in the PHY header portion. | 12-13-2012 |
| 20120320958 | METHOD FOR TRANSMITTING A SIGNAL OVER A POWER LINE CHANNEL AND POWER LINE COMMUNICATION MODEM - A power line communication modem includes a receiver that receives a noise signal over a power line channel. The signal is OFDM-modulated on a set of sub-carriers, the sub-carriers being separated by a frequency separation. The power line communication modem also includes a processor that identifies a presence of a radio service within one or more fine frequency bands with a first resolution bandwidth by analyzing a plurality of fine frequency bands. The first resolution bandwidth is smaller than the frequency separation. The power line communication modem additionally includes a transmitter that excludes a signal in at least one of the plurality of fine frequency bands, in which the presence of the radio service has been identified, before transmitting the excluded signal. | 12-20-2012 |
| 20120327986 | CROSSTALK MITIGATION IN TRANSMISSION SYSTEM - Representative implementations of devices and techniques communication circuitry configured to communicate via a plurality of transmission channels, the communication circuitry includes crosstalk reduction circuitry to reduce crosstalk for a part of the plurality of transmission channels, the part of the plurality of transmission channels is selected from the plurality of transmission channels depending on an error threshold value. | 12-27-2012 |
| 20120327987 | EXTENDED DURATION PHY HEADER FOR PLC - A method of powerline communications (PLC) over a PLC channel including a first node and at least a second node utilizes an algorithm that compiles frames having extended duration physical layer (PHY) headers. A duration or estimated duration of a null of the PLC channel is provided. An extended duration PHY header is compiled including a plurality of symbols and bits having a time duration of the PHY header of at least fifty percent (50%) more than the duration or estimated duration of the null. The compiling includes symbol repetition of at least a portion of the plurality of symbols or bit repetition of at least a portion of the plurality of bits. The first node transmits a frame including a preamble and the extended duration PHY header over the PLC channel to at least the second node. | 12-27-2012 |
| 20120327988 | INGRESS NOISE LOCALIZATION IN A CABLE NETWORK - Ingress noise labeling tags are coupled into the signal path at various nodes of a cable network. The tags imprint a unique electric signature into a local ingress noise, making the noise identifiable at the headend of the network. In one embodiment, tags do not require external control signals to operate, the electrical response of the tags being determined by present and/or past magnitudes of the return path signal. Advantageously, such tags can be made entirely passive, not requiring a control signal or an external source of electrical power. | 12-27-2012 |
| 20130003797 | UNIVERSAL MODEM SYSTEM AND THE MANUFACTURING METHOD THEREOF - According to one exemplary embodiment of a universal modem system, multiple digital signal processors (DSPs) are configured to perform at least one streaming-based task, or at least one block-based task, or both of the tasks. At least one concatenate memory is configured to store data for the at least one streaming-based task At least one concatenate bus connects at least one concatenate memory and the plurality of DSPs serially for performing the at least one streaming-based task. At least one concatenate memory is configured to store the data for the at least one streaming-based task. At least one public bus connects the plurality of DSPs and the at least one shared memory for performing the at least one block-based tasks. | 01-03-2013 |
| 20130003798 | DEVICE ABSTRACTION PROXY - Described are systems and methods for implementing and operating a Device Abstraction Proxy (DAP). In one embodiment, the DAP includes a communications interface to connect the DAP to one or more access aggregation devices, each having a plurality of physical ports to provide Digital Subscriber Line (DSL) communication services to a plurality of remote DSL terminals via the plurality of physical ports. The DAP may further include a memory and processor to execute a virtual access aggregation device, in which a subset of the plurality of physical ports are allocated and linked to corresponding logical ports. The DAP may further include a global rule-set module to define operational constraints for the DSL communication services, and a management interface to allow at least one broadband access management system to manage the subset of physical ports allocated to the virtual access aggregation device subject to the operational constraints. | 01-03-2013 |
| 20130022094 | N+N PROTECTION SWITCHING - A communication system comprises a plurality of DSL links comprising a first group and second group of DSL links, each group comprising more than one DSL link. The communication system also comprises a first node and a second node each having at least one application port and a plurality of DSL ports. Each DSL port is coupled to a respective one of the DSL links such that the first and second nodes are communicatively coupled via the DSL links. Each of the first and second nodes is configured to interleave a first copy of data received over the respective application port across the first group and to interleave a second copy of the data across the second group. When a failure is detected on a DSL link in the first group, each of the first and second nodes is configured to switch from the first group to the second group. | 01-24-2013 |
| 20130022095 | Systems, Methods, and Apparatuses for Modem Coordination - Methods, apparatuses, and systems are provided for modem coordination. A method may include establishing a coordinated communication session with a base station on a first communication channel. The method may further include causing transmission, to the base station, of an indication of an occurrence of an irregular transmission of data on a second communication channel. The second communication channel may be with a station logically separated from the base station. The base station maybe configured to respond to the indication of the occurrence of the irregular transmission by modifying transmission on the first communication channel to avoid interfering with the irregular transmission. The method may additionally include causing transmission, to the base station, of an indication of completion of the irregular transmission to allow the base station to resume normal transmission on the first communication channel. Corresponding apparatuses and systems are also provided. | 01-24-2013 |
| 20130034137 | DISTRIBUTED MODEM ARCHITECTURES FOR POWER LINE COMMUNICATION SYSTEMS AND OTHER WIRED COMMUNICATION SYSTEMS - A master modem is configured to generate a carrier signal for transmission over a wired connection. A slave modem is configured to change an impedance of the wired connection to alter generation of the carrier signal by the master modem. The impedance of the wired connection is changed based on data to be provided by the slave modem. The master modem can demodulate its own carrier signal to obtain the data provided by the slave modem. The impedance of the wired connection could be changed by changing an impedance of a transformer winding or inductor of the slave modem, where the transformer winding or inductor is coupled to the wired connection. The impedance of the wired connection could also be changed by changing a reactance of a circuit coupled to the wired connection. | 02-07-2013 |
| 20130039401 | METHOD AND APARATUS FOR MIXED ANALOG/DIGITAL BEAMFORMING - A method provides mixed analog/digital beamforming by a transmitter in a mobile communication system. The method includes converting a modulation symbol into a parallel symbol stream, performing digital beamforming on the parallel symbol stream, performing an IFFT operation on the digital-beamformed parallel symbol stream to generate a time-domain symbol, converting the IFFT-operated time-domain symbol into a serial time-domain symbol, inserting a CP into the serial time-domain symbol, performing a DAC operation on the CP-inserted symbol to generate an analog signal, and performing analog beamforming by multiplying the analog signal by the analog beamforming precoder optimized for the first subcarrier transmitted through at least one RF channel. | 02-14-2013 |
| 20130039402 | METHOD TO GET A FREQUENCY REFERENCE TO A BASE STATION - The present solution relates to a method in a base station ( | 02-14-2013 |
| 20130044795 | SYSTEM AND METHOD FOR AUTOMATIC BAUD RATE SELECTION FOR FACSIMILE TRANSMIT AND RECEIVE - A system for automatic data rate selection. A transmit rate control selects a transmit baud rate and a transmit modulation protocol and modifies the transmit baud rate and the transmit modulation protocol in response to communication errors. A receive rate control selects a receive baud rate and a receive modulation protocol and modifies the receive baud rate and the receive modulation protocol in response to communication errors. The transmit baud rate can be modified independent of the transmit modulation protocol, the receive baud rate can be modified independent of the receive modulation protocol, the transmit baud rate can be different from the receive baud rate, and the transmit modulation protocol can be different from the receive modulation protocol. | 02-21-2013 |
| 20130051442 | METHOD AND APPARATUS FOR UPDATING EQUALIZATION COEFFICIENTS OF ADAPTIVE PRE-EQUALIZERS - A method and apparatus for updating equalization coefficients of an adaptive pre-equalizer of a network element are provided. The method includes monitoring a communications channel to measure distortion of a communications signal received from the network element and detecting whether a transient impairment is present in the communication signal. When a transient impairment is not detected to be present, a pre-equalization coefficient update is transmitted to the network element. However, when a transient impairment is detected to be present, at least selected ones of the pre-equalization coefficients are scaled before the update is transmitted to the network element or the update is withheld from being transmitted to the network element. An apparatus is also disclosed. | 02-28-2013 |
| 20130058387 | WIRELESS COMMUNICATIONS DEVICE WITH PERFORMANCE MONITORING AND ASSOCIATED METHODS - A mobile wireless communications device includes a transceiver comprising a transmitter and a receiver, an auxiliary receiver, and a controller. The transmitter is configured to upconvert a transmit baseband modulated signal and generate an RF modulated signal having a transmit impairment. The auxiliary receiver is configured to downconvert the RF modulated signal and generate a receive baseband modulated signal having the transmit impairment. The auxiliary receiver is selectively configured to operate based on a control signal in a single-mixer mode when the transmitter is selectively configured to operate in a dual-mixer mode, and in the dual-mixer mode when the transmitter is selectively configured to operate in the single-mixer mode. The controller is configured to compare the transmit baseband modulated signal to the transmit impairment to determine an error difference therebetween, and generate the control signal based on the error difference. | 03-07-2013 |
| 20130058388 | WIRELESS COMMUNICATIONS DEVICE WITH IMPAIRMENT COMPENSATION AND ASSOCIATED METHODS - A mobile wireless communications device includes a transceiver, an auxiliary receiver and a controller. The transceiver includes a transmitter and a receiver. The transmitter upconverts a transmit baseband modulated signal and generates an RF modulated signal having a transmit impairment. The auxiliary receiver is coupled to the transmitter and downconverts the RF modulated signal and generates a receive baseband modulated signal having a receive impairment therein spectrally separated from the transmit impairment. The controller is coupled to the transmitter and the auxiliary receiver and estimates the transmit impairment while ignoring the receive impairment based on comparing the transmit baseband modulated signal with the receive baseband modulated signal. The controller generates an impairment compensation signal based upon the estimated transmit impairment. | 03-07-2013 |
| 20130070824 | RADIO COMMUNICATION ANTENNA AND RADIO COMMUNICATION DEVICE - Disclosed is a radio communication antenna which includes a first conductive line surrounding a closed region on a substrate; and a second conductive line provided within the closed region and directly connected with the first conductive line to be protruded into the closed region. The radio communication antenna has a first communication frequency band and a second communication frequency band different from the first communication frequency band. | 03-21-2013 |
| 20130070825 | GENERIC CONTROL PROTOCOL - Techniques are provided for controlling downstream Converged Cable Access Platform (CCAP) access points or other devices using a Generic Control Protocol (GCP). At the CCAP access point having a network interface and a coaxial interface, GCP control plane information is received from a Cable Modem Termination System (CMTS) via the network interface, where the control plane information is designed to configure the CCAP access point to enable communication over the network interface and the coaxial interface. GCP can be used to send data structures and register control messages across a network to embedded devices. | 03-21-2013 |
| 20130070826 | CABLE COMMUNICATION SYSTEMS AND METHODS EMPLOYING 256-QAM UPSTREAM CHANNELS AND HAVING INCREASED UPSTREAM CAPACITY FOR SUPPORTING VOICE AND/OR DATA SERVICES - Cable communication systems and methods to provide voice and/or data services to subscriber premises via a cable plant that conveys upstream information over an upstream path bandwidth, and a cable modem system including one or more demodulation tuners to receive and demodulate one or more upstream radio frequency (RF) signals. An RF signal includes an encoded carrier wave having a carrier frequency of between approximately 5 MHz and at least approximately 42 MHz that is modulated using quadrature amplitude modulation (QAM) with voice and/or data information constituting at least some of the upstream information. A modulation order of the QAM for the first upstream RF signal is at least 256, and at least one demodulation tuner of the cable modem system is configured to receive and demodulate the first upstream RF signal. | 03-21-2013 |
| 20130077664 | METHOD AND SYSTEM FOR ASSOCIATION BETWEEN CONTROLLER AND DEVICE IN HOME NETWORK - A system and method for associating a controller and a device in a home network. The method includes using a master modem for: (a) registering unique information of a specific device when a controller requests a registration of the specific device; (b) receiving information including unique information of a household device from a slave modem using the home network; (c) determining whether the unique information of the household device exists on the registered information; (d) if it is determined that the unique information of the household device does not exist, requesting an exclusion of the household device requesting the association and excluding the household device from the home network association; and (e) if it is determined that the unique information of the household device exists, performing the home network association by transmitting the unique information of the household device, which is received from the slave modem, to the controller. | 03-28-2013 |
| 20130077665 | WIRELESS TRANSMISSION APPARATUS AND SELF-CHECKING METHOD OF WIRELESS TRANSMISSION APPARATUS - A wireless transmission apparatus includes a service processing unit, a duplexer, a radio frequency receiving unit, a frequency synthesizer, and a controller. The controller controls, according to a reduced TR interval, the frequency synthesizer to adjust a frequency of a local oscillation signal which is output by the frequency synthesizer to the radio frequency receiving unit. The service processing unit continues to send a service signal as a self-checking signal, and a part of the self-checking signal leaks into the radio frequency receiving unit through the duplexer. After the radio frequency receiving unit mixes a received signal with the local oscillation signal, a frequency of the self-checking signal included in an output signal falls within a pass-band range of an intermediate frequency receiving unit, which ensures that the self-checking signal can be looped back to the service processing unit, thereby determines whether a fault occurs in its own transmission channel. | 03-28-2013 |
| 20130083830 | Systems and Methods for Equalizing Retransmission Delays for Data Retransmission Over Bonded Modems - Embodiments of the present invention provide systems for incorporating bonding processors while avoiding bonding processor buffer overflow by initiating retransmission requests on all data lines whenever corrupted data is encountered on one data line. Initiating these “extra” retransmission requests equalizes retransmissions delays over all transmission lines, preventing the bonding processor from receiving excess data that cannot be reassembled until the retransmission request is processed. | 04-04-2013 |
| 20130089124 | ADAPTIVE TONE POWER CONTROL IN PLC NETWORKS - In a powerline communications (PLC) network having a first node and at least a second node on a PLC channel utilizing a band including a plurality of tones, based on at least one channel quality indicator (CQI), the first node allocates for a tone map response payload only a single (1) power control bit for each of a plurality of subbands having two or more tones. The power control bit indicates a first power state or a second power state. The first node transmits a frame including the tone map response payload to the second node. The second node transmits a frame having boosted signal power for the tones in the subbands which have the first power state compared to a lower signal power for the tones in the subbands which have the second power state. | 04-11-2013 |
| 20130089125 | CABLE MODEM DEVICE OF COAXIAL CABLE NETWORK USING USB INTERFACE, METHOD USING IT AND COAXIAL CABLE NETWORK SYSTEM - A cable modem device using a USB (universal serial bus) interface according to the embodiment includes a modem for converting network data received from a coaxial cable network through a coaxial cable, a USB interface converter for converting a format of the network data into a USB interface format to output the network data to an external device through the USB interface, and a power supply for supplying a power. The power supply receives the power from the external device through the USB interface and provides the power to the modem and the USB interface converter. | 04-11-2013 |
| 20130094549 | MULTI GIGABIT MODEM FOR MMWAVE POINT TO POINT LINKS - A millimeter wave modem assembly, which includes an input/output interface module configured to receive and transmit standardized data streams in accordance with dedicated interface specifications, and includes an encoder module configured to encode the standardized data streams to form coded digital bits, and also includes a physical layer module configured to convert the coded digital bits into digital symbols and into digital samples, and to convert the digital samples into the digital symbols and then into the coded digital bits; and further includes a data conversion module configured to perform a high rate conversion of the digital samples to form an analog signal suitable for wireless transmission over a link in accordance with the dedicated interface specifications. | 04-18-2013 |
| 20130094550 | SHARED FEEDBACK FOR ADAPTIVE TRANSMITTER PRE-DISTORTION - A modem is described. The modem includes a transmitter. The transmitter includes a digital pre-distortion module and a power amplifier. The modem also includes one or more selected shared receivers. The one or more selected shared receivers generate a feedback signal for the digital pre-distortion module. The modem further includes a feedback switch. The feedback switch selectively couples the one or more selected shared receivers to an output of the transmitter. | 04-18-2013 |
| 20130094551 | Method and System for a Low-Power Client in a Wide Area Network - A network device may be operable to receive an indication from a cable modem termination system (CMTS) that media access control (MAC) management messages will be transmitted by the CMTS at fixed intervals. Subsequent to receiving the indication, the network device may be operable to power down one or more components of the network device and set a sleep timer to a value equal to an integer multiple of the fixed interval minus a transition period. The network device may power up the one or more components of the network device upon expiration of the sleep timer. The network device may power up the one or more components of the network device upon an amount of traffic in a buffer of the network device reaching a threshold. | 04-18-2013 |
| 20130094552 | Communication on a Pilot Wire - Systems and methods are disclosed for communicating on a pilot wire between Electric Vehicle Service Equipment (EVSE) and an Electric Vehicle (EV). In an example embodiment, a modem is coupled to the pilot wire that couples the EVSE and the EV. The modem transmits both pulse width modulation (PWM) command signals and power line communication (PLC) signals to a remote device via the pilot wire. The modem interleaves the PWM and PLC signals on the pilot wire so that latency requirements for the PWM signals are maintained. The modem supports parallel protocol stacks in which PLC signals are processed in a first path and PWM signals are processed in a second path that bypasses the first path and provides the PWM signals directly to a MAC layer. The modem may create a modified frame for the PLC signals to maintain the latency requirements. | 04-18-2013 |
| 20130094553 | APPARATUS AND METHOD FOR CALIBRATION OF SUPPLY MODULATION IN TRANSMITTER - A transmit apparatus having a supply modulator is provided. The apparatus includes a detector and the supply modulator. In the method, the detector detects an output signal of the supply modulator. Also, the supply modulator receives the detected output signal of the supply modulator from the detector and calibrates a modulation characteristic of the supply modulator. The transmit apparatus having a supply modulator includes a modulator/demodulator (modem) and the supply modulator. The modem provides a calibration signal for calibrating a modulation characteristic of the supply modulator, to the supply modulator. The supply modulator outputs a modulated signal in accordance with the calibrated modulation characteristic of the supply modulator based on the calibration signal from the modem. | 04-18-2013 |
| 20130094554 | Systems and Methods for Signal Frequency Division in Wireless Communication Systems - An exemplary system comprises at least one antenna, first and second signal paths, and an N-plexer. The antenna may be configured to receive first and second diversity receive signals. The antenna is further configured to transmit first and second diversity transmit signals. The first signal path may have a frequency converter configured to downconvert the first diversity receive signal to an intermediate frequency and to upconvert the first diversity transmit signal to a radio frequency. The second signal path may have a frequency converter configured to downconvert the second diversity receive signal to an intermediate frequency and to upconvert the second diversity transmit signal to the radio frequency. The N-plexer may be configured to provide the first and second diversity receive signals to a cable and to provide from the cable the first and second diversity transmit signals to the first signal path and the second signal path, respectively. | 04-18-2013 |
| 20130094555 | Method and Apparatus for Optimizing Dynamic Range in DMT Modems - A digital subscriber line XDSL communication system for optimizing dynamic range in digital multi-tone modulated (DMT) modems. The system comprises a digital subscriber line access multiplexer (DSLAM) and at least one modem. The DSLAM distributes a near end crosstalk (NEXT) model of anticipated disturbance from neighboring disturber subscriber lines. The at least one modem has a transmit path and a receive path. The at least one modem couples to the DSLAM and is responsive to the distributed NEXT model to adjust a dynamic range of an analog portion of the receive path to accommodate the anticipated disturbance modeled in the distributed NEXT model. | 04-18-2013 |
| 20130101000 | METHOD AND APPARATUS FOR PERFORMING SPECULATIVE DECISION FEEDBACK EQUALIZATION - A method for equalizing a received signal is provided. The signal is filtered and transmitted over a channel using an encoding scheme, where the encoding scheme has transmit symbols. This transmitted signal is then shaped such that the filtering and equalization adjust a set of taps in an equalization window so that the taps from the set are substantially equal to one another. Inter-symbol interference is then compensated for in the equalized signal using a speculative DFE with significantly reduced comparator levels. | 04-25-2013 |
| 20130101001 | MODEM DEVICE AND AMPLITUDE ADJUSTMENT METHOD - A modem device includes a modulation unit | 04-25-2013 |
| 20130107921 | Adaptive Tilt Compensation of Upstream Channel in High Speed Data Networks | 05-02-2013 |
| 20130107922 | CONSTELLATION DETECTION IN A MULTI-MODE QAM COMMUNICATIONS SYSTEM | 05-02-2013 |
| 20130107923 | METHODS CIRCUITS APPARATUS AND SYSTEMS FOR WIRELESS DATA COMMUNICATION | 05-02-2013 |
| 20130121390 | LIGHT BULB HOLDER MODULE WITH FUNCTION OF SHARING WIRELESS NETWORK - A light bulb holder module with a function of sharing wireless network is disclosed. The light bulb holder module is embedded into a light bulb slot and is externally connected to a light bulb. The light bulb holder module includes a light bulb holder, an electronic switch, a control unit, a network input port, a wireless transmission chip, and an antenna unit. The network input port is connected to a modem via a network wire to receive network services. The wireless transmission chip receives and converts network signals and then transmits the network signals out via the antenna unit. The wireless transmission chip is electrically connected to the control unit so that external control signals are received by the wireless transmission chip and controlled by the control unit to control the electronic switch to be turned on or turned off, thus lightening or extinguishing the light bulb. | 05-16-2013 |
| 20130128935 | FULL SPATIAL DIMENSION EXTRACTION FOR IMPLICIT BEAMFORMING - Techniques are provided to compute downlink beamforming weights for beamforming multiple spatial streams to a wireless device when that wireless device does not transmit with a maximum number of spatial streams, and thus when the full dimensional knowledge of the wireless channel to that wireless device needs to be implicitly derived. Uplink signals are received at a plurality of antennas of a first wireless device that are transmitted via a plurality of antennas of a second wireless device. The first wireless device derives values at a plurality of subcarriers of the received signals across the plurality of antennas of the first wireless device. Downlink beamforming weights are computed from values of consecutive subcarriers across the plurality of antennas of the first wireless device. The first wireless device applies the downlink beamforming weights at respective subcarriers to a number of spatial streams to be transmitted to the second wireless device. | 05-23-2013 |
| 20130128936 | Systems and Methods for Improved High Capacity in Wireless Communication Systems - An exemplary system comprises at least one antenna, first and second signal paths, and an N-plexer. The first antenna may be configured to receive first and second diversity received signals. The first signal path may have a first converter configured to convert the first diversity received signal to first carrier group. The second signal path may have a second converter configured to convert the second diversity received signal to a second carrier group. The N-plexer may be configured to provide the first and second diversity received signals to a first cable in communication with a first modem. | 05-23-2013 |
| 20130142231 | METHOD FOR OPERATING A PLC SYSTEM, PLC MODEM DEVICE AND PLC SYSTEM - A method for operating a PLC system including at least one PLC modem device, in which interferences on transmission signals of the PLC system and/or on a transmission spectrum of the PLC system are detected, the interferences are caused by influences of an impedance modulating device connected to a mains used by the PLC system for communication, and, in a case such interferences are detected, frequencies on which the impedance modulating device causes interferences are selected to be notched from power line communication and/or time periods when the impedance modulating device is in a switching mode are selected to be avoided for transmitting PLC signals. A PLC modem device and a PLC system can implement the method. | 06-06-2013 |
| 20130142232 | APPARATUS AND METHOD FOR PROVIDING INTERFACE BETWEEN MODEM AND RF CHIP - An Analog-Digital Converter (ADC) is provided. The ADC includes a plurality of sigma-delta modulators, a plurality of decimators, a plurality of differentiators, and a plurality of XOR operators. The plurality of sigma-delta modulators respectively convert analog signals to digital pulses. The plurality of decimators respectively convert a first sampling rate of a corresponding digital pulse to a second sampling rate which is lower than the first sampling. The plurality of differentiators respectively differentiate signals converted at the second sampling rate to perform delta modulation. The plurality of XOR operators extract a signal component changing with respect to the delta-modulated signals. Therefore, the number of interface pins between a modem and an RFIC can be reduced. | 06-06-2013 |
| 20130142233 | DEVICE FOR DETERMINING A COMMON-MODE SIGNAL IN A POWER LINE COMMUNICATION NETWORK - A device for determining a common-mode signal in a power line communication network. The device includes a first line, a second line, and a third line that are connected to a first terminal, to a second terminal, and to a third terminal, respectively. The first, the second, and the third terminal are configured to be connected to a phase line, a neutral line, and a protective ground line of the power line communication network, respectively. The device further includes a common-mode choke configured to couple out the common signal from the first, second, and third line, and the common-mode choke is connected to a termination impedance which is higher than an impedance of the power line communication network. | 06-06-2013 |
| 20130142234 | REMOTE TRANSMISSION SYSTEM - A transmission apparatus includes a plurality of modems, which are configured to communicate via respective wireless communication channels and includes at least first and second modems configured to communicate respectively over separate first and second wireless communication networks. The transmission apparatus also includes a stream processor, which is configured to receive and process an incoming media stream so as to provide multiple upload streams for transmission by different ones of the modems, including first and second upload streams for transmission by the first and second modems, respectively. | 06-06-2013 |
| 20130148707 | DYNAMIC CHANNEL BONDING PARTIAL SERVICE TRIGGERING - A method and computing device for transitioning into and out of partial service mode to make bandwidth available for other resources. A trigger value is set for a channel, where a first and second cable modem have registered to use the channel, and where the first cable modem is a bonded channel modem that utilizes a bonding group that includes the channel and at least one other channel. A modulation mode for the channel is monitored. The channel is transitioned from full service mode to partial service mode when the channel is in full service mode and monitoring detects that the modulation mode is less than or equal to the trigger value. The channel is transitioned from partial service mode to full service mode when the channel is in partial service mode and the modulation mode for the channel is greater than the trigger value. | 06-13-2013 |
| 20130148708 | SYSTEMS AND METHODS FOR A MULTICARRIER MODULATION SYSTEM WITH A VARIABLE MARGIN - A multicarrier modem has a plurality of carriers over which data is transmitted. By assigning, for example, one or more different margins to the individual carriers the data rate and impairment immunity can be increased. | 06-13-2013 |
| 20130156080 | ANTENNA DEPLOYMENT SWITCHING FOR DATA COMMUNICATION OF A USER DEVICE - Methods and systems for selecting one of a plurality of antennas to be used as a transmit antenna based on an orientation of a user device are described. A user device determines an orientation of the user device, and selects one of multiple antennas to use as a first transmit antenna based on the orientation of the user device. The user device transmits information using the first transmit antenna. | 06-20-2013 |
| 20130156081 | MODEM AND METHOD OF OPERATING A WIRELESS DEVICE - A modem is provided for a wireless device that is capable of providing service for at least two SIMs. The modem has at least a first set of modem components and a second set of modem components. The modem selectively reconfigures the arrangement of the plural sets of modem components. In a first configuration, the first set of modem components provides wireless connection service for a first SIM of the wireless device and the second set of modem components provides wireless connection service for a second SIM of the wireless device. This allows active wireless connections to be made on behalf of both SIMs simultaneously by the sets of modem components. In a second configuration, the first set of modem components and the second set of modem components provide wireless connection service for the first SIM. | 06-20-2013 |
| 20130163651 | Electronic Circuit and Method for Recovering Desired Signals from Carrier Signals by Demodulation as well as a Modem - An electronic circuit comprising a rectifier which passes only one polarity of a carrier signal; at least one filter, subsequent to the rectifier, for the suppression of at least one frequency range of the carrier signal; a voltage matching network, subsequent to the filter, which is embodied so that it matches the voltage of the desired signal, and leads to one of the two inputs of a comparator, wherein an output of the comparator is switched, depending on the difference between the two inputs, and a feedback network connected in parallel with the comparator, wherein the feedback network connects one of the two inputs of the comparator with the output of the comparator, the feedback network comprises a high-pass characteristic. The invention furthermore comprises a method for the recovering of desired signals from a carrier signal by demodulation and a modem. | 06-27-2013 |
| 20130170528 | Convergence Layer Bonding Over Multiple Carriers - A cable modem termination system (CMTS) is disclosed that allocates one or more minislots of a super-frame arrangement to cable modems for upstream transmission. The super-frame arrangement includes multiple minislots that correspond to multiple communication channels of one or more super-frames. The CMTS receives requests for upstream bandwidth from the cable modems. The CMTS continuously allocates the minislots of the super-frame to provide upstream bandwidth grants to accommodate these requests. The CMTS communicates the upstream bandwidth grants as a single upstream bandwidth allocation map (MAP) to the cable modems. | 07-04-2013 |
| 20130177052 | METHOD AND ARRANGEMENT IN A DIGITAL SUBSCRIBER LINE SYSTEM - Transmitting and receiving arrangements and methods in a Digital Subscriber Line (DSL) system having a plurality of modems and vectored transmission capability. A first part of an available frequency band is reserved exclusively for vectored DSL transmission and reception using modems operating in the first part of the frequency band. The remaining, second, part of the available frequency band is configured for standard non-vectored transmission using modems operating in the second part of the frequency band. In this way, the DSL system obtains the full benefit of vectored transmission in the first part of the frequency band, even if the DSL vector system cannot handle all DSL modems. | 07-11-2013 |
| 20130177053 | METHOD, MODEM, AND SYSTEM FOR CANCELING ADJACENT CHANNEL INTERFERENCE - A method for canceling adjacent channel interference includes: receiving signal of a first channel, where an interference signal of a second channel remains in the signal of the first channel, and the second channel and the first channel are adjacent channels; receiving a cancellation signal provided by the second channel for canceling the interference signal; filtering the received cancellation signal; adjusting a frequency of the filtered cancellation signal; multiplying the cancellation signal with the adjusted frequency by a gain factor to obtain a signal to be cancelled; and subtracting the signal to be cancelled from the signal of the first channel, and canceling the interference signal to obtain a signal to be decoded. According to the technical solutions provided in the embodiments of the present invention, interference signals of adjacent channels are cancelled, and the signal to noise ratio is improved. | 07-11-2013 |
| 20130177054 | SYSTEM AND METHOD FOR CONFIGURATION ACCESS VIA CONNECTED DEVICES - Systems and methods are shown for configuring a cable modem using a dedicated user device that include providing a dedicated port on a cable modem for connecting to a user service device, initiating a configuration connection between the user service device and a cable modem that bypasses the cable modem's authentication process, and changing settings on the cable modem in accordance with input from the user service device. | 07-11-2013 |
| 20130182752 | System and Method for Detecting Burst Noise During Quadrature Amplitude Modulation Communications - A system and method for detecting burst noise during quadrature amplitude modulation (QAM) communications are provided. A QAM signal is acquired at a receiver in communication with a network. The QAM signal is demodulated at the receiver to identify a plurality of symbols. Amplitudes for each of the plurality of symbols are determined, and are compared to a predetermined threshold. For each amplitude that is greater than the predetermined threshold, information is recorded at the receiver relating to a burst noise event. The magnitude of the burst noise can be determined by measuring a difference between a received constellation point and a perimeter constellation point closest to the received constellation point. The information about the burst noise event can be transmitted to an error correction module for reducing future burst noise in the network. Equalizer coefficients and tracking loop performance can be adjusted/enhanced using the burst noise information. | 07-18-2013 |
| 20130195159 | DATA REPRODUCTION CIRCUIT AND DATA TRANSMISSION DEVICE - Disclosed herein is a data reproduction circuit including: a comparator configured to compare input data resulting from capacitive coupling with a comparison voltage as a threshold voltage and output a comparison result; and a comparison voltage variable section configured to change the comparison voltage along a mark rate of the input data and supply the changed comparison voltage to the comparator. | 08-01-2013 |
| 20130202018 | POWER LINE COMMUNCATION METHOD AND POWER LINE COMMUNICATION SYSTEM - A power line communication (PLC) method includes the steps of: programming a registration code into a micro inverter; enabling a data collector to execute a register step, which includes an operation of registering and saving the registration code to a server, through internet; enabling the data collector to send a message to the server through the internet; enabling the server to deliver an authentication code, which is relative to the registration code, to the data collector through the internet according to the message; and enabling the data collector and the micro inverter to identify each other via a power line based on the authentication code. | 08-08-2013 |
| 20130215939 | METHOD, APPARATUS AND SYSTEM FOR SETTING A SIZE OF AN EVENT CORRELATION TIME WINDOW - Transmitting and receiving arrangements and methods in a Digital Subscriber Line (DSL) system having a plurality of modems and vectored transmission capability. A first part of an available frequency band is reserved for vectored DSL transmission and reception using modems operating in the first part of the frequency band. The remaining, second, part of the available frequency band is reserved for both vectored and non-vectored transmission using modems operating in the second part of the frequency band. | 08-22-2013 |
| 20130215940 | Method for Robust Crosstalk Precoder Training in Channels with Impulse Noise - An apparatus comprising a first transceiver at a central office (CO) coupled to a second transceiver at a customer premise equipment (CPE) via a digital subscriber line (DSL), a crosstalk precoder coupled to the first transceiver at the CO, and a vectoring control entity (VCE) coupled to the transceiver via a feedback channel and to the crosstalk precoder, wherein the second transceiver comprises a noise monitor configured to detect non-crosstalk noise in a downstream signal from the CO to the CPE, and wherein the first transceiver is configured to receive a predefined special feedback signal from the second transceiver that indicates whether non-crosstalk noise is detected in the downstream signal instead of a measured error value. | 08-22-2013 |
| 20130215941 | BUFFER MANAGEMENT DEVICE AND METHOD FOR HYBRID AUTOMATIC REPEAT REQUESTS IN A WIRELESS COMMUNICATION SYSTEM - Effective management of a Hybrid-Automatic Repeat reQuest (HARQ) buffer in a wireless communication system is provided. A receiving terminal includes a first memory for storing Log Likelihood Ratio (LLR) values of at least one data block comprised in a received HARQ burst in a first memory, a channel decoder for decoding the at least one data block by using the LLR values, an error detection unit for detecting whether there are errors in the decoded at least one data block, and a second memory for storing at least one error-free data block in a decoded state among the data blocks in a second memory. | 08-22-2013 |
| 20130223490 | Opportunistic Modem - An opportunistic modem (OM) system receives user data at an input port and transmits a modem output signal at an output port. In one aspect the data is initially transmitted over a first carrier in the modem output signal having a first frequency and bandwidth. Subsequently a second carrier having a second frequency and bandwidth is established, initially used to transmit pilot data, and then the user data is divided between the first and second carriers in the modem output signal. In another aspect the data is initially transmitted over a first and a second carrier in the modem output signal having respective first and second frequencies and bandwidths. Subsequently the second carrier is used to transmit pilot data for a period time. After the period of time the second carrier is de-established. In another aspect establishment and de-establishment of carriers is performed in response to detected interference. | 08-29-2013 |
| 20130223491 | Methods, Systems and Products for Providing Modem Functions - A network interface to a data network has a modulator-demodulator. The modulator-demodulator receives a modulated carrier signal from an input connection. A power circuit connected to the input connection receives electrical power from a loop plant and provides the electrical power to the modulator-demodulator. | 08-29-2013 |
| 20130230084 | METHOD AND APPARATUS FOR ANALYZING AND MITIGATING NOISE IN A DIGITAL SUBSCRIBER LINE - Data indicative of a level of stability of a DSL link is received. Based on the received data, it is determined whether the data indicates a level of stability of the DSL link that is above or below a minimum threshold. If the level of stability of the DSL link is below the minimum threshold, die noise associated with the DSL link before the time of failure is compared with the noise associated with the DSL link after the time of failure. If the difference between the noise before and after the time of failure exceeds a threshold, then the difference in noise is characterized as a stationary noise associated with the DSL link. However, if the difference between the noise before and after the time of failure is below the threshold, a determination is made whether the failure is associated with a loss of power to the DSL link or a severe impulse noise event—the difference in noise is characterized accordingly. Finally, the characterization of the noise associated with the DSL link is preserved for subsequent possible reconfiguration of the DSL link to improve link stability. | 09-05-2013 |
| 20130235915 | METHOD AND APPARATUS FOR GROUPING LINE PAIRS, AND SYSTEM - Embodiments of the present invention relate to the field of communications and disclose a method and an apparatus for grouping line pairs, and a system, to solve a problem that obtaining a crosstalk cancellation coefficient matrix through channel training imposes a very high requirement on a system capability such as a computing capability and a storage capability and even affects user experience due to the relatively large number of line pairs in a large scale Vectored-DSL system. A technical solution provided in the present invention includes: acquiring crosstalk impact data between line pairs in a vectored-digital subscriber line Vectored-DSL system; and grouping line pairs, between which a crosstalk impact cannot be ignored, into one vector group according to a set threshold and the crosstalk impact data between the line pairs. The method and apparatus provided in the embodiments of the present invention are applicable to a large scale Vectored-DSL. | 09-12-2013 |
| 20130243054 | AUTOMATED SATELLITE INTERFERENCE MITIGATION - An automated process to periodically check and ensure that earth terminal settings provide compliant EIRPSD. For example, one embodiment of the present invention provides an apparatus which queries the modem for its transmit symbol rate and the Block Up-Converter (BUC) for its RF output power. Using these two values and preprogrammed values for connection loss between the BUC and antenna, the current input power spectral density being transferred to the antenna is computed by the apparatus and compared to the preprogrammed regulatory limit for the specific antenna. If the limit is being exceeded, the apparatus sets BUC attenuation to compensate for the excess. | 09-19-2013 |
| 20130243055 | SOFTWARE-DEFINED RADIO TERMINAL DEVICE AND METHOD FOR DISTRIBUTING AND INSTALLING RADIO APPLICATION - Disclosed is a software-defined radio terminal device of the present invention. The software-defined radio terminal device of the present invention is a software-defined radio terminal device configured adaptively according to a radio application, and comprises: a storage unit, a micro processor, and a baseband accelerator, wherein the micro processor delivers from the upper layer to the baseband accelerator a control command for controlling the baseband accelerator and information to be transmitted, reads from the storage unit a code including a radio controller layer delivering the information received from the baseband accelerator to the upper layer, and a baseband driver layer that enables the interface between the radio controller layer and the baseband accelerator and implements the code thereby, and is configured to load from the storage unit to the baseband accelerator at least one function block needed for implementing the radio application, and the function block loaded to the baseband accelerator is configured to include a baseband control function block that controls in real-time the baseband accelerator. | 09-19-2013 |
| 20130251010 | METHOD AND APPARATUS FOR COMPENSATING FOR PHASE SHIFT IN A COMMUNICATION DEVICE - A method and apparatus for compensating is described, in which a tuning network is electrically coupled to an antenna and to a phase shift network. A controller communicatively linked to the tuning network and to the phase shift network receives data regarding the state of a communication system. The controller changes the impedance of the tuning network, and changes the phase shift of the phase shift network based on the received data. The received data may include information regarding the channel, band, or sub-band on which a communication device is communicating; information regarding on the application state of the device; and the modem state of the device. | 09-26-2013 |
| 20130251011 | Data Processing - Measures for use in processing data in a user equipment radio receiver, the radio receiver comprising a modem adapted for wireless communication with a telecommunications network. Data associated with wireless communication conducted via the modem is received, the received data being defined in a first domain. The received data is transformed from the first domain into a second domain using a transform function to generate transformed data in the second domain. The transformed data is compressed in the second domain to produce compressed data in the second domain. The compressed data is stored in memory in the user equipment radio receiver. | 09-26-2013 |
| 20130266049 | INTELLIGENT NODE FOR IMPROVING SIGNAL QUALITY IN A CABLE MODEM NETWORK - Systems and methods are provided for improving the signal quality and performance in a cable operator's Hybrid Fiber Coax (HFC) plant by adding DOCSIS intelligence to components within the HFC plant. These intelligent DOCSIS devices, referred to here as DOCSIS Intelligent Nodes (DINs), intercept the upstream signal from cable modems and set top boxes, and perform various types of signal processing on the signals based upon knowledge of the signal characteristics obtained from CMTS control structures such as MAPs and Upstream Channel Descriptors (UCDs). The DIN functionality can be integrated into any type of device found in HFC networks such as RF amplifiers and fiber nodes. | 10-10-2013 |
| 20130266050 | INTELLIGENT DEVICE SYSTEM AND METHOD FOR DISTRIBUTION OF DIGITAL SIGNALS ON A WIDEBAND SIGNAL DISTRIBUTION SYSTEM - A plurality of intelligent device systems for use with a wideband signal distribution network, and methods for transmitting digital information and receiving digital and non-digital information onto and off of an RF carrier through a wideband signal distribution network, are disclosed. The intelligent device systems provide networks of intelligent devices that modulate and demodulate digital video, IP video/data/voice and digital wireless onto, and off of, a wideband signal distribution system, such as an analog carrier system, using existing EIA/TIA 568 standard wiring infrastructure. The methods modulate and demodulate digital video, IP video/data/voice and digital wireless onto, and off of, a wideband distribution system, such as an analog carrier system, and separate IP portions from non-IP portions. | 10-10-2013 |
| 20130272353 | SYSTEM AND METHOD FOR DYNAMIC PROFILE MANAGEMENT IN CABLE MODEM SYSTEMS - A system and method for dynamic profile management in a cable modem termination system (CMTS) is provided. A CMTS receiver is in communications with a plurality of cable modems, and a dynamic profile management module is in communication with the CMTS receiver. The dynamic profile management module establishes a communications profile for an upstream channel used by the CMTS receiver and at least one of the plurality of cable modems (the communications profile including a plurality of parameters associated with the upstream channel), continuously monitors performance metrics associated with communications across the upstream channel, and automatically adjusts the plurality of parameters of the communications profile in response to the monitored performance metrics. | 10-17-2013 |
| 20130272354 | MULTIMODE MULTICARRIER MODEM SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 10-17-2013 |
| 20130272355 | IMPULSE NOISE MANAGEMENT - Evaluation of the impact of impulse noise on a communication system can be utilized to determine how the system should be configured to adapt to impulse noise events. Moreover, the system allows for information regarding impulse noise events, such as length of the event, repetition period of the event and timing of the event, to be collected and forwarded to a destination. The adaptation can be performed during one or more of Showtime and initialization, and can be initiated and determined at either one or more of a transmitter and a receiver. | 10-17-2013 |
| 20130272356 | Configurable Encoder for Cyclic Error Correction Codes - Apparatus for encoding includes a first processing stage, which is configured to filter input data with a first set of coefficients belonging to a first generator polynomial representing a first ECC, to produce a first output. A second processing stage is configured to filter the first output using a second set of coefficients belonging to a quotient polynomial, which is defined as a quotient of a second generator polynomial, representing a second ECC, divided by the first generator polynomial, to produce a second output. Ancillary circuitry has first and second operational modes and is coupled to the first and second processing stages so as to generate a first redundancy output corresponding to the first ECC based on the first output when operating in the first mode, and to generate a second redundancy output corresponding to the second ECC based on the second output when operating in the second mode. | 10-17-2013 |
| 20130272357 | METHOD, APPARATUS AND SYSTEM OF TRANSFERRING DATA BETWEEN ELEMENTS OF A CABLE COMMUNICATION DEVICE - Some demonstrative embodiments include devices, systems and methods of transferring information between elements of a communication device. For example, a device may include a front-end to receive an analog downstream input including a plurality of downstream data channels, and to provide a digital serial downstream output including at least one continuous stream of constant-size downstream frames including a plurality of constant-size downstream data frames, which include downstream sample data of the plurality of downstream data channels; a serial interface including at least one serial lane to transfer the at least on stream of the digital serial downstream output; and a processor to receive the digital serial downstream over the serial interface, and to process the downstream data frames. | 10-17-2013 |
| 20130287077 | COMBINING MULTIPLE DESIRED SIGNALS INTO A SINGLE BASEBAND SIGNAL - A transceiver for receiving multiple desired signals is described. The transceiver includes a first downconverter that receives a first received signal. The transceiver also includes a second downconverter that receives the first received signal. The transceiver further includes a first adder that receives an output of the first downconverter and a second received signal. The transceiver also includes a second adder that receives an output of the second downconverter. | 10-31-2013 |
| 20130294489 | Ensure Upstream Channel Quality Measurement Stability In An Upstream Channel Bonding System Using T4 Timeout Multiplier - A method and computing device for maintaining the stability of the upstream channel quality measurements in an upstream channel bonded system. The method configures a cable modem, that communicates using bonded channels, to periodically exchange ranging messages on the bonded channels, where a bonded channel ranging interval determines a period for the exchange. The method also monitors a signal quality metric for a monitored channel of the bonded channels by periodically retrieving a quality measurement for the monitored channel, a period between each retrieval determined by a channel quality monitoring interval. The method sends an invite ranging message to the cable modem before retrieval of the quality measurement for the monitored channel, and retrieves the quality measurement for the monitored channel. The method bases the signal quality metric for the monitored channel on the quality measurement. | 11-07-2013 |
| 20130301692 | METHOD FOR RANGING WITHOUT DOCSIS CHIPSET - A method and test instrument for performing a ranging measurement in a DOCSIS network, uses low cost and general purpose electronics instead of a DOCSIS chipset. A downstream CATV receiver, including a CATV tuner and QAM demodulator, accepts the downstream signals from a CMTS. The output of the demodulator is an MPEG transport stream containing DOCSIS signaling messages and data packets. Software algorithms running inside a suitable general purpose processor decode the MPEG transport stream to isolate signaling messages from the data packets. The signaling messages are used to determine the appropriate format and timing of ranging request messages for the CMTS. A burst generator generates the RF return path messages to be sent to the CMTS, using previously computed waveforms. | 11-14-2013 |
| 20130308690 | SYSTEMS, METHODS, AND APPARATUS FOR REDUCING MOBILE DEVICE POWER CONSUMPTION RELATIVE TO PERIODIC DATA PACKET TRANSFERS - This disclosure describes systems, methods, and apparatus for aligning data packet transmission calls to a modem processor | 11-21-2013 |
| 20130308691 | Split Microwave Backhaul Architecture Allowing for Bandwidth Changes Between an Indoor and Outdoor Unit - A microwave backhaul architecture for remodulating data to increase a capacity of a corresponding wireless link is provided. The microwave backhaul architecture includes an indoor communication unit (IDU) configured to perform modulation and/or demodulation of the data and to perform a conversion of the data. The data is configured to have a modulation and baud rate dictated by performance capabilities of the IDU. The microwave backhaul architecture also includes an outdoor communication unit (ODU) configured to adjust at least one of the modulation and baud rate of the data in accordance with communication constraints to produce remodulated data. The ODU is configured to adjust the modulation and baud rate of the data such that the remodulated data has a higher-order modulation and lower baud rate when communicated over the wireless link than the modulation and baud rate of the data when communicated between the IDU and the ODU. | 11-21-2013 |
| 20130322502 | METHOD, EQUIPMENT, SYSTEM, AND PROGRAM PRODUCT FOR ACTIVATING DSL - Embodiments of the present invention provide a method for activating a DSL. The method includes: sending, by a central office equipment, a sync frame period indication message to a customer premises equipment, where a sync frame period indicated by the sync frame period indication message is smaller than a specified sync frame period threshold; receiving a reply message sent by the customer premises equipment in response to the sync frame period indication message, where the reply message indicates whether the customer premises equipment accepts the sync frame period indicated by the sync frame period indication message; and if the reply message indicates that the customer premises equipment accepts the sync frame period, performing, by the central office equipment, vectoring training by using a corresponding sync frame within the sync frame period. The embodiments of the present invention further provide corresponding equipments, a system, and a program product. | 12-05-2013 |
| 20130336374 | SYSTEM SELECTION AND DETERMINATION THROUGH A SMART STORAGE DEVICE - A method, an apparatus, and a computer program product for wireless communication are provided in which system selection and system determination algorithms maintained in a smart storage device are used by a modem of a mobile wireless terminal. The smart storage device may provide configuration data and algorithms to be used by the modem and functions ordinarily performed by the modem may be performed by a processor of the smart storage device. The functions may include system determination, system configuration and system selection functions. The smart storage device may receive network information from the modem for use in performing the functions. The smart storage device permits preferences and policies set by a home network operator to override preferences and policies set by an operator of a network to which the wireless terminal is currently connected. | 12-19-2013 |
| 20140010269 | METHOD AND SYSTEM FOR DETECTING AND MITIGATING INTERFERENCE IN A CABLE NETWORK SYSTEM - A cable modem (CM) device captures signals over a wide spectrum including one or more cable frequency bands and sub-bands, and extracts one or more cable channels from the captured signals. The CM device is operable to analyze the extracted one or more cable channels and assigns a portion of the extracted one or more cable channels for upstream and/or downstream communication based on the analysis. The CM device may recapture one or more previously unused cable channels to be utilized for the upstream and/or downstream communication based on the analysis. The CM device may determine noise, interference and/or blocker information corresponding to the extracted one or more cable channels based on the analysis. Based on the determined noise, interference and/or blocker information, the cable modem termination system (CMTS) may assign or block usage of one or more cable channels for the upstream and/or downstream communication. | 01-09-2014 |
| 20140010270 | METHOD, APPARATUS, AND SYSTEM FOR DIGITAL SUBSCRIBER LINE SIGNAL PROCESSING - Embodiments of the present invention relate to a method, an apparatus, and a system for digital subscriber line processing. The signal processing method includes: using a symbol in a frame to be sent to bear data to be sent; acquiring the number of remaining symbols that do not bear the data to be sent in the frame to be sent that bears the data to be sent; and adding information about the number of the remaining symbols in the frame to be sent that bears the data to be sent, and sending the frame that bears the data to be sent and is added with the information about the number of the remaining symbols. | 01-09-2014 |
| 20140023126 | UNIVERSAL NETWORK INTERFACE DEVICE - An universal network interface device with an enclosure, an access module, a modem module, a switching power supply and a battery pack. | 01-23-2014 |
| 20140029654 | METHOD AND APPARATUS FOR CHARACTERIZING IMPULSE NOISEAND OPTIMIZING DATA LINK EFFICIENCY - Method and apparatus for characterizing an impulse noise impairment impacting communications over data links of a network are provided. A test signal comprising a bit stream of a predetermined bit sequence and packet size is configured and transmitted over the data links. The test signal is received, and the bit stream of the test signal as transmitted is compared to a bit stream of the test signal as received to identify differences in bit sequence. Thereafter, characteristics of the impulse noise impairment impacting communications between the data links are estimated based on the detected differences in bit sequence. | 01-30-2014 |
| 20140036974 | ADAPTIVE FILTER AND METHOD OF ADAPTIVE FILTERING - The present invention relates to an adaptive filter, which includes an analog filter; an analog-digital converter; a modem; a control unit connected to the modem to detect an adjacent interference signal adjacent to an interested channel signal; and a filter control signal generating unit connected to the control unit to generate a filter control signal for controlling a capacity of a variable capacitor, and a method of adaptive filtering and can control a filter passband adaptively to the adjacent interference signal. | 02-06-2014 |
| 20140064344 | SOFTWARE-DEFINED RADIO TERMINAL APPARATUS, AND METHOD FOR DISTRIBUTING AND INSTALLING RADIO APPLICATIONS - According to the present invention, a software-defined radio terminal apparatus is a software-defined radio terminal apparatus which is adaptively constituted based on radio applications, and may comprise a storage unit, a microprocessor, and a baseband accelerator. The microprocessor reads, from the storage unit, a code, including a radio controller layer and a baseband driver layer, and executes the code, wherein the radio controller layer delivers a control command for controlling the baseband accelerator and information to be transmitted, from an upper layer to the baseband accelerator, and delivers the information received from the baseband accelerator to the upper layer, wherein the baseband driver layer provides interface between the radio controller layer and the baseband accelerator. In addition, the microprocessor is configured to load at least one functional block required for the implementation of a radio application from the storage unit to the baseband accelerator, and the functional block loaded to the baseband accelerator includes a baseband control functional block for controlling the baseband accelerator in real time. | 03-06-2014 |
| 20140079102 | Physical Layer (PHY) Link Signaling for Cable Networks - Embodiments include systems and methods for enabling a physical layer (PHY) link signaling channel between a network termination modem and a cable modem in a cable network. The PHY link signaling channel is embedded within the same multi-carrier channel as the data and enables PHY link up between the network termination modem and cable modem without involvement of higher layers (e.g., MAC). The PHY link signaling channel can be implemented in the downstream (from the network termination modem to the cable modem(s)) or in the upstream from a cable modem to the network termination modem. Embodiments are applicable to any known cable network, and particularly to cable networks implementing the DOCSiS and EPoC standards. | 03-20-2014 |
| 20140079103 | Interference cancellation within OFDM communications - Many communication systems operate based on orthogonal frequency division multiplexing (OFDM) signaling and/or orthogonal frequency division multiple access (OFDMA) signaling. Within such systems, narrowband interference, which may alternatively be referred to as narrowband ingress, narrowband ingress interference, narrowband noise, etc., may adversely affect one or more subcarriers or tones causing a reduction in performance or even link failure. Such narrowband interference may affect only one or a relatively few tones employed within such communications. When the narrowband interference is identified, a transmission may then be made including one or more information-free tones. A device that receives such a transmission then uses those information-free tones to reduce or cancel the narrowband interference. Such processing may be performed in the frequency-domain, the time domain, or both. | 03-20-2014 |
| 20140079104 | METHOD, APPARATUS, AND SYSTEM FOR REDUCING POWER CONSUMPTION ON XDSL SUBSCRIBER BOARD - A method for reducing power consumption on an xDSL subscriber board, includes: obtaining a maximum downlink service bandwidth, a downlink signal-to-noise ratio margin in line connection parameters of the user port, and transmission mode information in a line template bound to the user port; determining whether the downlink signal-to-noise ratio margin is larger than a preset value, if yes, reducing a maximum downlink nominal total transmission power; otherwise, configuring the maximum downlink nominal total transmission power as a downlink transmit power in line connection parameters of the current port; calculating a minimum undistorted power supply voltage required by a corresponding line driver of each registered user port under the current configuration of the bound template, comparing minimum undistorted power supply voltage values, to find the largest value; and controlling an output voltage of a power module of a line driver equaling to the largest value. | 03-20-2014 |
| 20140079105 | VECTORED-DSL METHOD AND SYSTEM, BOARD, AND DSLAM DEVICE - A vectored-DSL method and system and a board relate to the field of digital subscriber line DSL data processing, so as to increase user capacity of a vectored-DSL system. The vectored-DSL method includes: receiving, by at least one board, and pre-processing user data of the board; transmitting, by the board, the user data of the board to an auxiliary vector processor on the board to perform internal vectorization processing, so as to obtain internally processed data; transmitting, by the board, the user data thereof to a centralized vector processor to perform external vectorization processing, so as to obtain externally processed data; and receiving, by the board, the externally processed data of the board, and post-processing the externally processed data and the internally processed data. | 03-20-2014 |
| 20140086288 | SYSTEM AND METHOD FOR INITIATING 3GPP MODEM ONLINE DATA STATES - A modem and a method of placing a modem in an online data state. In one embodiment, the modem includes: (1) a digital interface configured to receive, via an AT channel thereof, a standard AT command directing an AT channel of the modem to exit a command state and enter an online data state and (2) a command processor coupled to the digital interface and configured to: extract channel designation data received as a standard parameter of the standard AT command, cause a channel designated by the channel designation data and separate from the AT channel to enter the online data state, and allow the AT channel to remain in the command state. | 03-27-2014 |
| 20140086289 | RADIO COMMUNICATION ANTENNA AND RADIO COMMUNICATION DEVICE - The present invention relates to a radio communication antenna and a radio communication device including the same. The radio communication antenna of the present invention includes first conductive wires extending in opposite directions with respect to a first direction on a substrate to form a dipole antenna, second conductive wires separated from the first conductive wires to be parallel with the first conductive wires, and stubs connected between the first conductive wires and the second conductive wires in a second direction intersecting with the first direction. | 03-27-2014 |
| 20140086290 | METHOD OF REDUCING INTERFERENCE BETWEEN A FIRST CARRIER CURRENT SIGNAL TRANSMITTED BETWEEN MODEMS IN AN ELECTRICAL NETWORK AND A SECOND SIGNAL TRANSMITTED BETWEEN MODEMS IN ANOTHER NETWORK - A method and device for reducing interference between a first signal of the carrier current type (Se) transmitted between modems (M | 03-27-2014 |
| 20140105259 | METHOD OF HANDLING PROACTIVE SOFTWARE TOOLKIT COMMANDS AND 3GPP MODEM EQUIPMENT INCORPORATING THE SAME - A modem and a method of handling a proactive software toolkit command. In one embodiment, the modem includes: (1) a digital interface configured to receive from a subscriber information module a proactive software toolkit command the modem is designated by standard to handle and (2) a command processor coupled to the digital interface and configured to prepare information regarding the command for transmission to terminal equipment coupled to the modem. | 04-17-2014 |
| 20140105260 | MANAGING SIM INDICATIONS - One aspect provides a method of handling a proactive indication received from a subscriber identity module at a modem, the modem being connected to a terminal equipment via a command interface. The method comprises receiving, at a modem processor, the proactive indication from the subscriber identity module. The method further comprises determining that the indication is to be handled by the modem processor. The method further comprises a modem processor transmitting a display command via the command interface to the terminal equipment and the modem processor awaiting a user response command, and continuing or aborting an action indicated in the proactive indication depending on the user response in the user response command received from the terminal equipment. | 04-17-2014 |
| 20140105261 | METHOD AND DATA TRANSMISSION DEVICE FOR DATA TRANSMISSION WITHIN AN xDSL DATA TRANSMISSION SYSTEM CONNECTING AT LEAST TWO ETHERNET NETWORKS VIA xDSL LINKS - An xDSL data transmission system which comprises at least two xDSL data transmission devices that connect at least two Ethernet networks to the xDSL data transmission system. For transmitting payload data via an xDSL transmission link formed between two adjacent xDSL data transmission devices, a respective xDSL data transmission frame according to a first protocol stack is used, in which additionally an embedded operations channel is provided according to the first protocol stack. A second protocol stack different from the first protocol stack is provided according to which an access to the embedded operations channel within an xDSL data transmission device is executed, and management data for diagnostics and configuration of the xDSL data transmission system are added to, transferred within, and read from the embedded operations channel, independently of the payload data of the xDSL data transmission frame. | 04-17-2014 |
| 20140105262 | METHOD AND APPARATUS FOR DETECTING AND ANALYZING NOISE AND OTHER EVENTS AFFECTING A COMMUNICATION SYSTEM - The present invention generally relates to a method and apparatus for effectively detecting and characterizing noise and other events affecting a communications system such as DSL. According to certain aspects, the invention includes a noise analysis engine that is embedded in customer premises equipment that classifies noise sources according to their specific characteristics and tracks each noise source in a dynamic manner, in such a way as to provide visibility to the changing noise environment within the customer premises and/or report this environment to a remote entity. | 04-17-2014 |
| 20140105263 | SYSTEMS AND METHOD FOR ORTHOGONAL FREQUENCY DIVISIONAL MULTIPLEXING - Systems and methods for orthogonal frequency division multiplexing are provided. In one embodiment, a multi-carrier modem comprises: a receiver configured to de-modulate symbols from at least one of a plurality of spectrally overlapping carrier signals to produce a receiver output; a transmitter configured to modulate symbols onto at least one of a plurality of the spectrally overlapping carrier signals; a processor coupled to the transmitter, wherein the processor outputs data for transmission by the transmitter, wherein the processor applies an inverse Fourier transform to the data transmitted by the transmitter; the processor coupled to the receiver, wherein the processor applies a Fourier transform to the receiver output; and a controller programmed to instruct the transmitter to transmit at least one symbol representing a request for bandwidth allocation on a first carrier; wherein the controller is further programmed to determine when a collision has occurred on the first carrier. | 04-17-2014 |
| 20140112379 | METHOD AND APPARATUS FOR CANCELLING IMPULSE NOISE IN DSL SYSTEMS - The present invention generally relates to an impulse noise canceller for DSL systems. According to certain aspects, embodiments of the invention provide a dual sensor receiver to deal with the impulse noise effectively. The second sensor can be incorporated by either a common mode or unused differential port. Alternatively a power line sensor can also act as a sensor. According to certain additional aspects, embodiments of the invention provide various alternative implementations of an impulse noise canceller within a DSL receiver. According to still further aspects, embodiments of the invention provide methods for selectively training an impulse noise canceller in the various implementations. | 04-24-2014 |
| 20140112380 | ALIEN INTERFERENCE REMOVAL IN VECTORED DSL - A vectored DSL system reduces or eliminates correlated alien interference in active DSL lines in the vectored system by collecting pseudo signals from inactive lines that do not carry upstream DSL transmissions and/or from common-mode voltage signals from active lines. The collected pseudo signals contain in-domain interference, such as FEXT interference from the active DSL lines in the vectored system, and correlated alien interference. After removing the in-domain interference from the pseudo signals, the remaining alien interference data can be used to generate FEXT cancellation coefficients or the like that are used in DSL vectoring to remove the correlated alien interference from upstream DSL user signals from the active DSL lines. The generated FEXT cancellation coefficients are used in a manner analogous to in-domain FEXT data collected from the active lines during training, tracking, etc. | 04-24-2014 |
| 20140119416 | COMMUNICATION SYSTEM WITH UP-CONVERTER AND DIGITAL BASEBAND PROCESSING CIRCUIT IMPLEMENTED IN ONE DIE SEPARATED FROM ANOTHER DIE HAVING DOWN-CONVERTER, AND RELATED COMMUNICATION METHOD THEREOF - One communication system includes a first die, a second die and a front-end circuit. The first die has an up-converter and a digital baseband (DBB) processing circuit. The second die has a down-converter. The front-end circuit couples an antenna to the first and second dies. Another exemplary communication system includes a first die, a second die and a front-end circuit. The first die performs digital baseband (DBB) processing, and generates a first signal with a higher frequency according to a second signal, wherein the second signal is derived from an output signal of the DBB processing. The second die generates a third signal with a lower frequency according to a fourth signal. The front-end circuit couples the first signal from the first die to an antenna and couples the fourth signal from the antenna to the second die. | 05-01-2014 |
| 20140119417 | POWER LINE COMMUNICATION MODEM, POWER LINE COMMUNICATION SYSTEM AND POWER LINE COMMUNICATION METHOD - A power line communication modem is provided including a transmitter configured to transmit a power line signal on at least one carrier of a plurality of carriers via a power line to a further power line communication modem; and a processor configured to allocate transmit powers to individual carriers of the plurality of carriers, wherein the sum of the transmit powers of individual carriers located in the first frequency range is below or equal to a first predetermined power maximum value for the first frequency range. A corresponding power line communication system and a power line communication method are provided as well. | 05-01-2014 |
| 20140126615 | SYNCHRONIZING RECEIVE DATA OVER A DIGITAL RADIO FREQUENCY (RF) INTERFACE - A method and system synchronizes transmission of receive data over an asynchronous digital radio frequency interface in a wireless communication device. A timing accurate strobe (TAS) re-sampler generates, using a first timing strobe synchronized to a baseband modem clock, a second timing strobe synchronized to a radio frequency integrated circuit (RFIC) clock. The TAS re-sampler forwards the second timing strobe to the RFIC to trigger a collection of data samples and initiates a count of RFIC clock cycles. The RFIC sends the data samples to a baseband First In First Out (FIFO) buffer over the asynchronous interface. In response to the count reaching a pre-determined number of RFIC clock cycles corresponding to a fixed delay, the TAS re-sampler triggers a reading of data from the FIFO buffer. The baseband modem receives data corresponding to the collection of data samples after a fixed delay from generation of the first timing strobe. | 05-08-2014 |
| 20140126616 | SYSTEMS AND METHODS FOR ESTABLISHING A DIAGNOSTIC TRANSMISSION MODE AND COMMUNICATING OVER THE SAME - Upon detection of a trigger, such as the exceeding of an error threshold or the direction of a user, a diagnostic link system enters a diagnostic information transmission mode. This diagnostic information transmission mode allows for two modems to exchange diagnostic and/or test information that may not otherwise be exchangeable during normal communication. The diagnostic information transmission mode is initiated by transmitting an initiate diagnostic link mode message to a receiving modem accompanied by a cyclic redundancy check (CRC). The receiving modem determines, based on the CRC, if a robust communications channel is present. If a robust communications channel is present, the two modems can initiate exchange of the diagnostic and/or test information. Otherwise, the transmission power of the transmitting modem is increased and the initiate diagnostic link mode message re-transmitted to the receiving modem until the CRC is determined to be correct. | 05-08-2014 |
| 20140133533 | Upstream Receiver Integrity Assessment for Modem Registration - A method and computing device for assessing the integrity of receivers in a Cable Modem Termination System (CMTS) to improve load balancing. The method configures a load balancing manager to move registered modems between the receivers, where each receiver is tuned to a frequency. The method obtains a signal quality measurement for each receiver, and, for each receiver, evaluates the signal quality measurement, and identifies the receiver as an impaired receiver when the frequency to which the receiver is tuned is identified by the evaluating as an impaired frequency. The method attempts to repair each impaired receiver, and notifies the load balancing manager to not allow moving the registered modems to each impaired receiver that is not repairable, and to allow moving the registered modems to each receiver that transitions from impaired to unimpaired. | 05-15-2014 |
| 20140133534 | SIGNAL PROCESSING METHOD, DEVICE AND SYSTEM - A signal processing method, device, and system are provided. The method includes: sending, through a first user port, a crosstalk detection signal in a connected line, and receiving, through a second user port, an error sample of an actual downlink signal fed back by a terminal side in a connected line; and estimating, according to the actual downlink signal and the crosstalk detection signal, a coefficient of a pre-coder of a DSLAM to obtain an estimated coefficient of the pre-coder, where the coefficient of the pre-coder is used to cancel far-end crosstalk on the line connected to the second user port when the first user port sends an SELT signal. | 05-15-2014 |
| 20140153621 | SYSTEM AND METHOD OF COMMUNICATION USING AT LEAST TWO MODULATION METHODS - A device may be capable of communicating using at least two type types of modulation methods. Methods and systems are provided for communication of data according to a communications method in which a master transceiver communicates with one or more slave transceivers according to a master/slave relationship. A first data message may include first information and second information that are modulated according to a first modulation method. The second information may include lower data rate data. A second data message may include third information that may be modulated according to the first modulation method and that may indicate an impending change to a second modulation method. The second modulation method may be used for transmitting fourth information, and the fourth information may be included in the second message. The fourth information may include higher data rate data, for example Internet access data. | 06-05-2014 |
| 20140153622 | RATE AGILE RATE-ADAPTIVE DIGITAL SUBSCRIBER LINE - Methods and apparatus for maintaining the maximum achievable data rate on a DSL line, up to and including a rate to which a user subscribes is described. Performance monitoring is conducted on the DSL line on an ongoing basis to determine noise margins in each direction. Each noise margin is compared against pre-determined decreasing/increasing thresholds to determine whether the line characteristics dictate a data rate change without loss of synchronization. The invention supports dynamic provisioning changes including application driven service level change requests, e.g., new bandwidth-on demand services. In some embodiments, a combination of existing and new embedded operations channel (EOC) messages are used to implement the modem data rate changes. New EOC messages may be implemented using some of the reserved and/or vendor proprietary Opcodes currently permitted. Modem assigned data rate changes are implemented without a disruption of service, e.g., without the need for re-initialization and/or re-synchronization. | 06-05-2014 |
| 20140161161 | BEACON DETECTION STRUCTURES, SYSTEMS AND PROCESSES FOR INTERFERENCE TESTING - A receiver is provided that receives signals from a device under test (DUT) for one or more modes of operation. For each mode, the system detects beacon transmission signals from the DUT, and counts the number of beacons for a period of time. If the count is not consistent with an expected count, e.g. a stored value, the system may preferably provide an output to indicate that there is a problem with the DUT. If the count is consistent with the expected count, the system may preferably perform further testing for other modes of operation. If the count output of the DUT is consistent with expected counts over each of the operation modes, the system may provide an indication that the DUT has passed the beacon tests. | 06-12-2014 |
| 20140161162 | MASTER UNIT, REMOTE UNIT AND MULTIBAND TRANSMISSION SYSTEM - A master unit and a remote unit is provided for a multiband transmission system for distributing and combining signals of at least one wireless communication network and at least one digital network. A reference frequency generator is arranged in the master unit, the reference frequency generator being designed to clock a master modem for converting the signals of the at least one digital network. The reference frequency signal emitted by the reference frequency signal is restored via a reference frequency receiver and is used for closing a remote modem that is located there for demodulation. | 06-12-2014 |
| 20140161163 | METHOD AND ARRANGEMENT IN A DSL VECTORING SYSTEM - Method and arrangement in a Vectoring Control Entity, VCE, for handling disorderly events in a Digital Subscriber Line, DSL, system. The method involves a number of actions, to be performed when a disorderly event occurs on a line m in a vectored group of DSL lines, and the transmission on line m is continued. The method comprises obtaining error samples from Customer Premises Equipments, CPEs, connected to other lines in the vectored group of DSL lines. The method further comprises—calculating an estimate of the channel coefficients changed due to the disorderly event, based on the error samples, thus providing a partial channel estimate. Further, the method comprises—modifying a downstream precoder, at least partly based on the partial channel estimate, such that retraining of the other lines in the vectored group due to the disorderly event is avoided. | 06-12-2014 |
| 20140169424 | Orthogonal frequency division multiplexing (OFDM) interleaving - A communication device is configured to perform interleaving of a modulation symbol sequence to generate an OFDM symbol. Some modulation symbols within the modulation symbol sequence that are separated by an interleaver depth may be transmitted via adjacently located sub-carriers, while other modulation symbols within the modulation sequence that are separated by more than the interleaver depth may also be transmitted via adjacently located sub-carriers. First adjacently located sub-carriers transmit first and second modulation symbols that are separated by the interleaver depth within the modulation sequence while second adjacently located sub-carriers transmit third and fourth modulation symbol that are separated by more than the interleaver depth within the modulation sequence. A communication device may be configured to adapt and switch between different operational parameters used for interleaving and/or deinterleaving at different times based on any desired considerations. | 06-19-2014 |
| 20140169425 | Orthogonal frequency division multiplexing (OFDM) with variable bit loading and time and/or frequency interleaving - A communication device is configured to perform processing of one or more bits to generate a modulation symbol sequence based on one or more profiles that specify variable bit loading of bits per symbol over at least some of the modulation symbols of the modulation symbol sequence. The communication device is also configured to perform interleaving of the modulation symbol sequence to generate OFDM symbol(s). Some modulation symbols within the modulation symbol sequence that are separated by an interleaver depth may be transmitted via adjacently located sub-carriers, while other modulation symbols within the modulation sequence that are separated by more than the interleaver depth may also be transmitted via adjacently located sub-carriers. A communication device may be configured to adapt and switch between different operational parameters used for bit loading, interleaving and/or deinterleaving at different times based on any desired considerations. | 06-19-2014 |
| 20140177688 | MODEM WITH EXPANSION MODULE - A modem with an expansion module includes a modulation/demodulation module and the expansion module. The modulation/demodulation module is provided to execute modulation and demodulation operations to network signals. The expansion module mainly has a central processing unit, a memory unit, and a signal output port. The memory unit stores an operating system. After the modem is started up, the central processing unit executes the operating system to generate video and audio signals. The modem is externally connected to a display screen via the signal output port, and the video and audio signals are transmitted to the display screen and displayed on the display screen. Accordingly, the modem is used to provide the network connection function for a computer device and also used as a small computer. | 06-26-2014 |
| 20140177689 | MULTIMODE MULTICARRIER MODEM SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 06-26-2014 |
| 20140177690 | LINK AGGREGATION SYSTEM, PROTECTION SYSTEM, AND CROSS POLARIZATION INTERFERENCE CANCELLATION APPLICATIONS FOR ALL OUTDOOR RADIOS USING WIRELESS CHANNELS OPERATING AT A LICENSING-FREE 60 GHZ BAND - System and method for implementing a link aggregation system, a protection system, and an XPIC application for an all outdoor radios system using a wireless channel operating at a license-free 60 GHz band are provided. The license-free 60 GHz band offers a wide frequency bandwidth that can support a high speed data rate up to 10 Gbps in full duplex mode, frequency reuse, and high security due to its fast oxygen absorption at 60 GHz. As such, a wireless channel operating at the license-free 60 GHz band may be used for a link aggregation system to support wireless local area network (LAN) connections with the speed up to 7 Gbps. In addition, a wireless connection operating at the license-free 60 GHz band may be used to support both XPIC application and protection system for all outdoor radios to achieve a transmission speed of up to 10 Gbps in a full duplex mode. | 06-26-2014 |
| 20140177691 | RADIO FREQUENCY COMMUNICATION - An analogue modem circuit and carrier recovery method are disclosed for use between an RF receiver and a digital modem circuit configured for receiving a baseband RF input signal, and including an up-converter with frequency supplied by an up-converter voltage controlled oscillator, VCO; a down-converter with frequency supplied by a down-converter VCO; a Costas loop sub-module; and baseband outputs from the down-converter to a digital modem circuit. The up-converter feeds the down-converter, and the Costas loop module performs Costas loop functionality on the output of the down-converter to control the up-converter VCO frequency output to thereby control modification of rotation of symbols of the baseband signal. | 06-26-2014 |
| 20140185657 | SYSTEMS AND METHODS FOR IMPLEMENTING SOFT-DECISION REED-SOLOMON DECODING TO IMPROVE CABLE MODEM AND CABLE GATEWAY PERFORMANCE - A system and method are provided for implementing a soft Reed-Solomon (RS) decoding scheme, technique or algorithm to improve physical layer performance in cable modems and cable gateways. At 1024-QAM, a receiver is provided in which a signal to noise ratio is reduced by at least about 1 dB relaxing design considerations and specifications for other components in the system including for the tuner. A soft-RS-symbol generation scheme is provided to enable soft-input RC decoding in a forward error correction (FEC) module connected to a QAM demodulator. The RS decoding scheme is implemented without significantly complicating hardware or processing overhead. A typical receiver hardware requirement in an FEC module to implement the disclosed scheme may be comparatively modest, e.g., on an order of approximately 50K gates. | 07-03-2014 |
| 20140185658 | SERDES DATA SAMPLING GEAR SHIFTER - A SerDes data sampling controller that includes a gear shifting data sampling clock that zeroes the data sampling skew at the center of the unit interval during the CDR phase lock stage, and then skews the data sample timing away from the center of the unit interval as the DFE coefficients adapt during the data transfer stage. This allows the controller to implement the best (unskewed) data sample timing during the CDR phase locking stage, and then skew the data sample timing after the DFE coefficients have adapted to provide the best (skewed) data sample timing for data bit sampling during the data transfer stage. The data sampling gear shifter may apply a variable skew value to the transition sampling or quadrature (Q) data sampling clock differentially varying the quadrature (Q) transition sampling clock from the inphase (I) data sampling clock. | 07-03-2014 |
| 20140185659 | Communication System Capable of Measuring Crosstalk in Legacy Line - A DSL transmitter and receiver are disclosed that are capable of accurately measuring crosstalk in G.vector-compliant DSL lines resulting from a legacy line. During crosstalk measurement, the legacy line can be placed in a showtime mode. Once in showtime mode, a data signal designated for the legacy line is reduced in power spectrum density and/or spectrum to reduce its effects on crosstalk measurements. An O-P-Vector-1 signal is then superposed on the reduced data signal, and the resulting test signal is transmitted over the legacy line while sync signals are transmitted over neighboring G.vector lines. The receiver can then accurately measure the crosstalk on the neighboring lines, and report back to the transceiver for adjustments. A similar configuration can be performed in a diagnostic mode of the legacy line. | 07-03-2014 |
| 20140233616 | COMMUNICATION SYSTEM AND METHOD - A modem is disclosed. An embodiment thereof includes: a first interface arranged to connect to a network, a second interface arranged to connect to a host processor on the terminal, an audio interface arranged to connect to an audio processing means and a processing unit arranged to receive a plurality of parameters from the terminal via the second interface. The plurality of parameters are associated with a call established by the host processor to at least one further terminal connected to the network; wherein the processing unit is further arranged to receive input voice data from the audio processing means, process the input voice data in dependence on at least one of said parameters; and transmit the processed input voice data via the first interface to the at least one further terminal over said network during the call in dependence on a further at least one of said parameters. | 08-21-2014 |
| 20140233617 | COMMUNICATION SYSTEM AND METHOD - A modem for handling notifications received over a network is disclosed. In one embodiment, the modem includes a first interface to connect to a network, a second interface to connect to a host processor on a terminal and a modem processor to receive presence configuration information from the host processor and in response thereto transmit a request comprising the presence configuration information to a presence information store. The modem processor further arranged to receive one or more notifications with presence information from the store based on the presence configuration information in the request. The presence information supplied to the store by one or more further terminals associated with one or more users. The modem processor stores the one or more notifications in a storage means, and in response to receiving a request for presence information from said host processor, supply presence information thereto based on the one or more notifications. | 08-21-2014 |
| 20140233618 | METHOD AND APPARATUS FOR SELF-TESTING TO IMPROVE FACTORY THROUGHPUT - A method and apparatus for self-testing of a radio frequency (RF) chipset is provided. The method requires that a set of test instructions be loaded into a software load station. Once the software is loaded, reference calibration is conducted with test equipment connected. After calibration, the test equipment is disconnected and self-testing of a transmit chain begins. A pre-determined load value is connected and the self-testing process routes a signal from the RF chipset internal modem through a power amplifier, duplexer, first coupler, switch, second coupler, and RF integrated circuit (IC). The apparatus includes a RF chipset that has an internal modem and signal generator as well as processors for processing self-testing of a transmit chain, self-testing of a primary receiver, and self-testing of a diversity receiver chain. | 08-21-2014 |
| 20140254644 | COMBINED IMBALANCE COMPENSATION AND EQUALIZATION OF A SIGNAL - Methods, systems, and apparatuses are described for compensating for impairments of a wireless device. In accordance with a disclosed method, a set of equalizer taps for an analog pipeline of the wireless device is determined. A first set of complex filter taps and a second set of complex filter taps are also determined, by modifying the set of equalizer taps according to an estimated imbalance of the analog pipeline of the wireless device. A signal associated with the analog pipeline is processed with a complex filter according to the first set of complex filter taps and the second set of complex filter taps. The processing provides a combined imbalance compensation and equalization of the signal. The complex filter may include a first complex half-filter associated with the first set of complex filter taps and a second complex half-filter associated with the second set of complex filter taps. | 09-11-2014 |
| 20140254645 | SYSTEMS AND METHODS FOR ESTABLISHING A DIAGNOSTIC TRANSMISSION MODE AND COMMUNICATING OVER THE SAME - Upon detection of a trigger, such as the exceeding of an error threshold or the direction of a user, a diagnostic link system enters a diagnostic information transmission mode. This diagnostic information transmission mode allows for two modems to exchange diagnostic and/or test information that may not otherwise be exchangeable during normal communication. The diagnostic information transmission mode is initiated by transmitting an initiate diagnostic link mode message to a receiving modem accompanied by a cyclic redundancy check (CRC). The receiving modem determines, based on the CRC, if a robust communications channel is present. If a robust communications channel is present, the two modems can initiate exchange of the diagnostic and/or test information. Otherwise, the transmission power of the transmitting modem is increased and the initiate diagnostic link mode message re-transmitted to the receiving modem until the CRC is determined to be correct. | 09-11-2014 |
| 20140254646 | MAGNETIC FIELD DATA MODEM - A magnetic field modem ( | 09-11-2014 |
| 20140269865 | ANALOG BASEBAND INTERFACE BETWEEN TRANSCEIVER AND MODEM - A wireless device for interfacing between a transceiver and a modem is described. The wireless device includes the transceiver. The transceiver generates a combined signal. The combined signal includes a first signal band from a first received signal and a second signal band from a second received signal at offset frequencies. The wireless device includes an analog baseband interface for providing the combined signal from the transceiver to the modem. The wireless device also includes the modem. The modem generates a downconverted/filtered signal for each of the signal bands of the combined signal. | 09-18-2014 |
| 20140294050 | METHOD AND MODEM FOR ADJUSTING MODULATION MODE - The present invention provides a method and modem for adjusting a modulation mode. In embodiments of the present invention, a first modem generates indication information according to a current working first modulation mode, so that the first modem can send the indication information to a second modem through a data frame. Therefore, the second modem adjusts a current working second modulation mode of the second modem according to the indication information, so that the adjusted second modulation mode is consistent with the first modulation mode. Therefore, the problem of complex operations in the prior art, caused by that an operator configures a modulation mode of a second modem as a current working modulation mode of a peer modem, that is, a first modem, can be avoided, and efficiency of network deployment can be improved. | 10-02-2014 |
| 20140301433 | FAR-END CROSSTALK CANCELING METHOD AND DEVICE - A method for remote crosstalk cancellation, includes: the combination transmitting signal is performed a pre-coding of crosstalk cancellation in the manner of self-adapting filtering, the self-adapting changes of the filtering parameters are guided correctly with the influence of the crosstalk component in the received signals which is reflected indirectly by relevant values of the noise statistic reported by the receiver. A corresponding device for remote crosstalk cancellation is provided. | 10-09-2014 |
| 20140307761 | SYSTEM AND METHOD FOR COMMUNICATING WITH SHAPED CYCLIC TIME-DOMAIN WAVEFORMS - Embodiments of a system and method for generating a shaped cyclic time-domain waveform are generally described herein. In some embodiments, a first transform may be performed on an input symbol vector to generate a transformed input vector in a transform domain. The transformed input symbol vector may be expanded to generate an expanded symbol vector. At least some elements of the expanded symbol vector may be weighted with a weighting vector selected for pulse shaping to generate a weighted symbol vector. A second transform may be performed on the weighted symbol vector to generate an output symbol vector for subsequent processing and transmission. The second transform may be an inverse of the first transform and may comprise a greater number of points than the first transform. | 10-16-2014 |
| 20140307762 | COMMUNICATION SYSTEM FOR MANAGING LEASED LINE NETWORK AND A METHOD THEREOF - Embodiments of the present disclosure relate to a communication system for managing leased line networks. The system comprises of a router to route data from one network to another network, and a V.35 modem configured to receive the data from the router and transmit the data to a predefined destination using internet protocol (IP) network. The interface which connects the router with the V.35 modem is a V.35 interface. The IP network requires an ethernet interface to receive the data and to transmit the data to a destined location. The V.35 modem designed converts the V.35 interface to an ethernet interface, but since the ethernet interface is expensive, the V.35 modem converts the ethernet interface to an ADSL interface for establishing ADSL connection towards the IP network. | 10-16-2014 |
| 20140307763 | Single Ended Line Test Methods for Time Duplex Division Devices - The present disclosure relates to a Time Duplex Division (TDD) modem and a method in such a modem for making Single Ended Line Test (SELT) measurements. The device comprises a transmitter and a receiver and it has a normal mode of TDD communication. In these devices, Time Domain Reflectometry (TDR) is used as line measurement. It has a number of drawbacks, and for overcoming said drawbacks, Frequency Domain Reflectometry (FDR) measurement techniques adapted for TDD devices are suggested. | 10-16-2014 |
| 20140321517 | NETWORK TERMINATION EQUIPMENT - The present invention provides an improved network termination equipment (NTE). The NTE of the present invention comprises a VDSL modem such that telephony signals and data signals can be transmitted together over conventional telephone wiring, without the need to install data cabling. This makes installation of super-fast broad band services faster and cheaper and makes them less visually intrusive. | 10-30-2014 |
| 20140355657 | COMMUNICATION MODEM FOR SUPPORTING MULTIPLE INTERFACES AND METHOD OF SETTING AN INTERFACE IN THE SAME - Disclosed is a method of setting an interface in a communication modem supporting a plurality of interfaces. The method includes determining a first mode in which an interface to the device is set in advance when it is detected to receive a signal from a device connected to the communication modem. The method also includes waiting for a reception of data after integrated pins belonging to the communication modem is set to correspond to the first mode. The method also includes determining a change of the first mode according to a result of receiving the data for a predetermined time. | 12-04-2014 |
| 20150010045 | MODEM DEVICES, APPLICATION PROCESSORS, COMMUNICATION DEVICES, METHODS FOR CONTROLLING A MODEM DEVICE, METHODS FOR CONTROLLING AN APPLICATION PROCESSOR, AND METHODS FOR CONTROLLING A COMMUNICATION DEVICE - A modem device may be provided. The modem device may include: a transceiver structure configured to transmit and receive data using at least one of a plurality of communication technologies; a memory configured to store a profile, the profile including or being information specifying a configuration of the transceiver structure for each communication technology of the plurality of communication technologies; and an application processor interface, wherein the modem device is configured to receive from the application processor a command for configuring the transceiver structure through the application processor interface. The command may include or may be an instruction to the modem device to configure the transceiver structure according to the profile. | 01-08-2015 |
| 20150023399 | Direct Current Signal Transmission System - A method and apparatus for sending data. Input signals from input wires are received. The input signals include data. Information about the input signals is identified. The data and the information are sent in digital signals over a wire to a second location. The input signals are recreated from the data and the information received in the digital signals over the wire. | 01-22-2015 |
| 20150036728 | COMPACT DUAL ALL-OUTDOOR POINT-TO-POINT MICROWAVE RADIO ARCHITECTURE - An outdoor radio communication system housed in a single enclosure comprises a first transceiver, a second transceiver, a communication interface unit, an RF in-phase transmit combiner, an antenna coupling unit and a receive filter. The first transceiver includes a first receiver and a first transmitter. The second transceiver includes a second receiver and a second transmitter. The two transceivers are communicatively coupled with the communication interface unit. The RF in-phase transmit combiner, communicatively coupled to the first transmitter and the second transmitter, receives a phase-aligned RF signal from each transmitter, to create a third RF signal with enhanced signal gain. The two phase-aligned RF signals originate from the same source in the communication interface unit. The antenna coupling unit is communicatively coupled to the RF in-phase transmit combiner and the first receiver, and the receive filter is communicatively coupled to the second receiver. | 02-05-2015 |
| 20150043624 | Analysis of Captured Signals to Measure Nonlinear Distortion - A method to test a signal path with vacant bandwidth by sending a test signal twice and processing two resulting nonlinear distortion signals captured in the vacant bands to determine presence of nonlinear distortion. If the signals correlate, the energy in the vacant bands is nonlinear distortion. If the test signal is sent followed by an inverse (in time-domain) of itself, and a resulting correlation peak is negative, the nonlinear distortion is determined to have been created by odd-order nonlinear distortion. | 02-12-2015 |
| 20150043625 | Upstream power amplifier - A communication device includes a communication interface, a number of variable power amplifiers (VPAs), and a processor. Some of the VPAs are configured to process analog signals to generate processed analog signals (e.g., each VPA configured to process one of the analog signals to generate one of the processed analog signals based on a respective VPA control signal). A composite VPA processes a summation of the processed analog signals, which are generated by certain of the VPA, to generate a processed composite signal based on a composite VPA control signal. The processor generates the a first, a second, and a composite VPA control signals based, at least in part, on configuration information from another communication device via the communication interface. The processor may be configured to consider other information as well, such as locally generated information (within the communication device), operational history, current operating conditions, etc. | 02-12-2015 |
| 20150049794 | Communication Device and Method - A communication device includes a signal processing device, a transceiver, and a controller. The signal processing device uses a first signal medium. The transceiver communicates with at least one of first devices by using a second signal medium. The controller controls usage of the first signal medium by the communication device and the at least one of first devices by communicating with the at least one of first devices by the transceiver. | 02-19-2015 |
| 20150049795 | RECEIVING DATA COMPENSATION METHOD TO IMPROVE DATA RECEIVING RATE AND RECEIVING MODEM CIRCUIT THEREOF - Included in the present general inventive concept are a receiving data compensating method to improve a data receiving rate and a receiving modem circuit thereof. The receiving data compensating method may include measuring a receiving characteristic offset based on characteristics of a receiver according to first and second state data. After measuring the receiving characteristic offset, a first data sample time offset to correspond to the first state data and a second data sample time offset to correspond to the second state data are independently decided. The decided first and second data sample time offsets are applied during compensation of receiving data received through a receiver. A near field communication (NFC) multimedia device may implement the receiving data compensation method. | 02-19-2015 |
| 20150055690 | INITIALIZATION AND TRACKING FOR LOW POWER LINK STATES - A method of coordinating a plurality of transceiver units (TUs), the method comprising receiving an initialization intent notification from a first TU in the plurality of TUs, sending a low-power link state (LPLS) transition notification to a second TU in the plurality of TUs, receiving a LPLS transition complete notification from the second TU in response to the second TU transitioning from a first mode to a second mode, wherein in the first mode the second TU is in an LPLS with a long inactivity period (LPLS-L), sending an able to initialize notification to the first TU, and performing a vector training procedure using the first TU and the second TU. | 02-26-2015 |
| 20150063431 | DIGITAL ANTENNA SWITCHING - Systems and methods for antenna switching without using a radio-frequency switch are provided. A signal received via a first antenna is digitized to form a first digital received signal. A signal received via a second antenna is digitized to form a second digital received signal. A switch selects the first digital received signal or the second digital received signal to be supplied to a modem to be demodulated. The switch may also supply a digital transmit signal from the modem to be supplied to digital-to-analog converters to and then transmitted using the first or second antenna. Additionally, when the modem is demodulating the signal received via the first antenna, another modem may be demodulating the signal received via the second antenna and vice versa. | 03-05-2015 |
| 20150078425 | SYSTEM AND METHOD OF COMMUNICATION USING AT LEAST TWO MODULATION METHODS - Methods and systems are provided for simple cable phone and internet (SCPI) device that may be coupled with a cable modem (CM) and one or more SCPI head ends, e.g., via an SCPI access point. The CM may be capable of communicating a first modulated signal with a cable modem termination system (CMTS), via the SCPI device. The SCPI device may be capable of combining a second modulated signal to the first modulated signal thereby generating a combined signal. The SCPI device may be capable of sending the combined signal comprising the first modulated signal and the second modulated signal to the CMTS and an SCPI head end. The SCPI head end may be capable of processing the combined signal and extract information and/or data associated with a service. The SCPI head end may deliver the extracted information and/or data to an appropriate gateway. | 03-19-2015 |
| 20150085907 | METHOD AND APPARATUS FOR PROVIDING DATA AND TELEPHONY SERVICES - A digital subscriber line modem comprises a first part operable to operate in accordance with a high bandwidth Digital Subscriber Line protocol and a second part operable to operate in accordance with a low bandwidth Digital Subscriber Line protocol, wherein the second part is arranged to operate continuously whilst the first part is arranged to transition into a low power mode, in which less or no data is transmitted or received by the first part, when the demand for bandwidth over the connection falls below a predetermined amount. The modem additionally includes a router which controls the sending of data via the first and second parts as appropriate and controls the aggregation of data received via the two parts. The modem also includes a service splitter for passing signals received from a copper twisted pair forming a communications link via which the modem communicates with another modem to either the first part or the second part as appropriate based on the frequencies of the received signals. | 03-26-2015 |
| 20150110163 | PHY PAYLOAD OVER MULTIPLE TONE MASKS USING SINGLE TONE MASK PHY HEADER INFORMATION - A method of communications includes compiling a data frame for physical layer (PHY) by a first communications device at a first communications node on a network. The data frame includes a single tone PHY header portion and a data payload portion in a set of tones including at least one tone having a frequency different from a frequency of the single tone. The PHY header portion includes tone mask identification information identifying the set of tones. The first communications device transmits the data frame over the powerline to a second communications device at a second communications node on the powerline. The second communications device receives the data frame, and decodes the data payload using the tone mask identification information in the PHY header portion. | 04-23-2015 |
| 20150117503 | POWER LINE COMMUNICATION MODEM, POWER LINE COMMUNICATION SYSTEM, POWER LINE COMMUNICATION METHOD - A power line communication modem is provided, including a connection element configured to connect the power line communication modem to at least three wires of a power line network; a transmitter configured to transmit a first signal via a first combination of at least two wires of the at least three wires and to transmit a second signal via a second combination of at least two wires of the at least three wires; a controller adapted to individually control a transmit power of the first signal and the second signal. A corresponding power line communication system and a power line communication method are provided as well. | 04-30-2015 |
| 20150124859 | METHOD FOR TERMINATING AN OPERATION OF A CPE DEVICE, AND RESPECTIVE CPE DEVICE USING THE METHOD - The method for terminating an operation of a CPE device, which comprises a front-end component for an xDSL connection of a Central Office Equipment supplying a multitude of customers, comprises the steps of: sending a power loss information to the Central Office Equipment in case of a power loss or a switch-off operation of the CPE device and powering the front-end component for a predetermined time to avoid a termination impedance change of the front-end component, by keeping the supply power up for the front-end component, to keep the termination impedance stable as long as necessary for the Central Office Equipment to avoid introduction of non-cancelled crosstalk, which may arise in xDSL connections of other customers. | 05-07-2015 |
| 20150124860 | SYSTEMS AND METHODS FOR LOOP LENGTH AND BRIDGED TAP LENGTH DETERMINATION OF A TRANSMISSION LINE - Through the use of a least squares minimization concept, the loop length, the number of bridged taps and length of the bridged taps on a transmission line can be determined from readily available modem data. In particular, the loop length, the number of bridge taps and the length of bridged taps can be estimated by comparing a measured frequency domain channel impulse response of the transmission line to a model of a loop that is comprised of multiple sections and multiple bridge taps. | 05-07-2015 |
| 20150139287 | METHOD FOR INITIATING A NON-STANDARD MODE FOR AN XDSL TRANSMISSION SYSTEM AND RESIDENTIAL GATEWAY USING THE METHOD - The invention defines a method for providing an xDSL broadband transmission service between a central office and a customer premises equipment which comprises the steps: initiating a handshaking procedure between the central office and the customer premises equipment, determining an xDSL transmission standard for providing the xDSL broadband transmission service, utilizing a non standard information field during the handshaking procedure to indicate a support of a non-standard mode between the central office and the customer premises equipment, and initiating the non-standard mode, in case no synchronization is established between the central office and the customer premises equipment after the handshaking procedure. | 05-21-2015 |
| 20150312051 | METHODS AND APPARATUS FOR INTELLIGENT POWER REDUCTION IN COMMUNICATIONS SYSTEMS - Methods and systems are provided for power control in communications devices. Bonding of channels in communication devices may be dynamically adjusted, such as responsive to requests for bandwidth adjustment. For example, bonded channel configurations may be adjusted based on power, such as to single channel configurations (or to channel configurations with small number of channels, such as relative to current configurations) for low power operations. Components (or functions thereof) used in conjunction with receiving and/or processing bonded channels may be dynamically adjusted. Such dynamic adjustments may be performed, for example, such as to maintain required synchronization and system information to facilitate rapid data transfer resumption upon demand. | 10-29-2015 |
| 20150312083 | SELF TRACK SCHEME FOR MULTI FREQUENCY BAND SERIALIZER DE-SERIALIZER I/O CIRCUITS - A serializer and de-serializer circuit having self tracking circuitry which is particularly well-suited for use in communicating digital data from one integrated circuit (chip) to another for implementing chip-to-chip communications is presented. The circuits are scalable and utilize a multi-frequency modulation mechanism (e.g., QAM) for converting digital data bits into a serial analog stream at multiple frequencies for communication over a chip I/O connection. The track pulse generated on the transmitter side is serialized through the same path as the data, and demodulated through the same path in the de-serializer to provide synchronization with the data, without the need for complicated base band processing. | 10-29-2015 |
| 20150341082 | POWER LINE COMMUNICATION MODEM, POWER LINE COMMUNICATION SYSTEM AND POWER LINE COMMUNICATION METHOD - A power line communication modem is provided including a transmitter configured to transmit a power line signal on at least one carrier of a plurality of carriers via a power line to a further power line communication modem; and a processor configured to allocate transmit powers to individual carriers of the plurality of carriers, wherein the sum of the transmit powers of individual carriers located in the first frequency range is below or equal to a first predetermined power maximum value for the first frequency range. A corresponding power line communication system and a power line communication method are provided as well. | 11-26-2015 |
| 20150349845 | SYSTEM AND METHOD FOR A POWER LINE MODEM - In accordance with an embodiment, a method of operating an electronic system includes detecting an incoming transmission on a power line, and modifying a switching behavior of a switched-mode power supply coupled to the power line upon detecting the incoming transmission. Modifying reduces the level of interference produced by the switched-mode power supply. | 12-03-2015 |
| 20150358437 | Physical Layer (PHY) Link Signaling for Cable Networks - Embodiments include systems and methods for enabling a physical layer (PHY) link signaling channel between a network termination modem and a cable modem in a cable network. The PHY link signaling channel is embedded within the same multi-carrier channel as the data and enables PHY link up between the network termination modem and cable modern without involvement of higher layers (e.g., MAC). The PHY link signaling channel can be implemented in the downstream (from the network termination modem to the cable modem(s)) or in the upstream from a cable modem to the network termination modem. Embodiments are applicable to any known cable network, and particularly to cable networks implementing the DOCSIS and EPoC standards. | 12-10-2015 |
| 20150365536 | Methods, Systems and Products for Providing Modem Functions - A network interface device to an access network has a modulator-demodulator. The modulator-demodulator receives a modulated carrier signal from an input connection. A power circuit connected to the input connection receives electrical power from the access network and provides the electrical power to the modulator-demodulator. | 12-17-2015 |
| 20150372839 | Modem Interface Using Virtual Local-Area Network Tagging - An interface between an application processor device and a modem device uses virtual local-area network (VLAN) tagging of Ethernet frames. An example modem device includes a first interface circuit configured to communicate with a remote device, a second interface circuit configured to communicate with an application processor circuit , and a processing circuit configured to: provide the application processor circuit with IP-based data communications to and from at least one remote IP network using Ethernet frames exchanged between the application processor circuit and the modem device; provide the application processor circuit with local modem services, using Ethernet frames exchanged between the application processor and the modem device; and distinguish between Ethernet frames for the local modem services and Ethernet frames for the IP-based data communication to and from the remote IP network using differing VLAN identifiers attached to or included within the respective Ethernet frames. | 12-24-2015 |
| 20160006407 | SWITCHLESS MULTIBAND FILTER ARCHITECTURE - A cable modem is provided in a premises. The cable modem is operated in a first mode with a first upstream passband. At least one fusible link in the cable modem is caused to be blown, which in turn causes the cable modem to upgrade to a second mode with a second upstream passband, greater than the first upstream passband, without use of any switch. | 01-07-2016 |
| 20160013962 | SYSTEMS AND METHODS FOR A MULTICARRIER MODULATION SYSTEM WITH A VARIABLE MARGIN | 01-14-2016 |
| 20160028435 | EFFICIENT BANDWIDTH UTILIZATION METHODS FOR CATV DOCSIS CHANNELS AND OTHER APPLICATIONS - Methods to improve the data carrying capacity of CATV DOCSIS systems and other communications systems are disclosed. Communications channels may be more efficiently spaced with reduced or absent guard bands by using receivers with adaptive signal cancellation methods, equalizing circuits, or polyphase filter banks and Fast Fourier Transform signal processing methods to correct for higher levels of cross-talk. QAM type communications channels may also be utilized on a synchronized two-transmitter at a time basis by adjusting the transmitters to predefined signal levels, such as +1, −1, +½, −½ to enable the combined signals to be distinguished at the receiver. These two methods may be combined to create a still higher data throughput system. | 01-28-2016 |
| 20160028496 | Noise localization within cable based communication systems - A communication device (e.g., a cable modem (CM)) includes a digital to analog converter (DAC) and a power amplifier (PA) that generate a signal to be transmitting via a communication interface to another communication device (e.g., cable modem termination system (CMTS)). The CM includes diagnostic analyzer that samples the signal based on a fullband sample capture corresponding to a full bandwidth and/or a subset (e.g., narrowband) sample capture to generate a fullband and/or subset signal capture (e.g., of an upstream (US) communication channel between the CM and the CMTS). The diagnostic analyzer can be configured to generate sample captures of the signal based on any desired parameter(s), condition(s), and/or trigger(s). The CM then transmits the signal to the CMTS and the fullband and/or subset signal capture to the CMTS and/or a proactive network maintenance (PNM) communication device to determine at least one characteristic associated with performance of the US communication channel. | 01-28-2016 |
| 20160044179 | MULTIMODE MULTICARRIER MODEM SYSTEM AND METHOD OF COMMUNICATION OVER THE SAME - An alternative approach to coping with the ever increasing demand for faster communications hardware is to design modems that are capable of operating its speeds at a higher data rate than a speed required for a single port of the standard communication rate for that modem. Basically, by utilizing a resource manager, that directs the data in and out of the various portions of the modem in an orderly manner, keeping track of which of the ports is being operated at any given point in time, a standard single port modem can be reconfigured, for example, at an over clocked rate, to manipulate the data input and output of a modem. | 02-11-2016 |
| 20160050127 | Upstream (US) transient impairment localization and detection within communication systems - A communication device (alternatively, device) includes a processor configured to support communications with other communication device(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processor, among other possible circuitries, components, elements, etc. to support communications with other communication device(s) and to generate and process signals for such communications. A device directs an analog to digital converter (ADC) to perform a sample capture of a communication channel and processes that sample capture to generate a detected power. The device performs an integrate-and-dump (I&D) operation on the detected power over at least one time period to generate an integrated power and then generates an integrated power histogram of the communication channel that includes the integrated power. This integrated power histogram characterizes noise generated by the device, noise entering the device, noise associated with the communication channel, etc. | 02-18-2016 |
| 20160056969 | METHOD AND SYSTEM FOR A HIGH CAPACITY CABLE NETWORK - A cable modem termination system (CMTS) may communicate with a plurality of cable modems using a plurality of orthogonal frequency division multiplexed (OFDM) subcarriers. The CMTS may determine a performance metric of each of the cable modems. For each of the OFDM subcarriers and each of the cable modems, the CMTS may select physical layer parameters to be used for communication with that cable modem on that OFDM subcarrier based on a performance metric of that cable modem. The parameters may be selected for each individual modem and/or each individual subcarrier, or may be selected for groups of modems and/or groups of subcarriers. The parameters may include, for example, one or more of: transmit power, receive sensitivity, timeslot duration, modulation type, modulation order, forward error correction (FEC) type, and FEC code rate. | 02-25-2016 |
| 20160056985 | ENERGY EFFICIENT HIGHWAY ADDRESSABLE REMOTE TRANSDUCER SOFT MODEM - A method and a highway addressable remote transducer (HART) soft modem device for modulating and demodulating analog signals with HART messages are provided. A phase coherent frequency shift keying (FSK) modulator modulates and transmits analog signals with HART messages, and a phase coherent FSK demodulator receives and demodulates the analog signals with the HART messages. The FSK modulator is a digital modulator that outputs 1 or 0 for transmission. With oversampling and low pass filtering, the digital modulation results in low jitter and good signal to noise ratio. The FSK demodulator applies a fast energy detect algorithm and dynamically reduces or increases a clock speed of a central processing unit (CPU) of the HART soft modem device for reducing power consumption of the CPU. Furthermore, the HART soft modem device uses direct memory access (DMA) to further reduce the power consumption, thereby reducing the overall power consumption by around 50%. | 02-25-2016 |
| 20160072490 | SEMICONDUCTOR APPARATUS AND RADIO COMMUNICATION APPARATUS - A semiconductor apparatus that can detect the amplitude level of harmonics is provided. A semiconductor apparatus | 03-10-2016 |
| 20160112214 | COMMUNICATION SYSTEM WITH PROACTIVE NETWORK MAINTENANCE AND METHODS FOR USE THEREWITH - A transmitter for use in a cable modem termination system includes a data processing module that generates a plurality of OFDM symbols from a data packet. A probe symbol generator generates a probe symbol, as one of a plurality of probe symbol types. The probe symbol is selectively inserted within the plurality of OFDM symbols, at a pre-defined probe symbol interval. | 04-21-2016 |
| 20160134329 | USE OF AN APPARATUS FOR CONFIGURING COMMUNICATION-RELATED PARAMETERS - The invention relates to a use of an apparatus for configuring two or more communication-related parameters in a cable modem system. The apparatus comprises a processor, a cable television signal input interface for receiving one or more cable television signals, and a cable modem termination system unit for providing access to a communication network. | 05-12-2016 |
| 20160149745 | REDUCED PRECISION VECTOR PROCESSING - Methods, systems, and devices are described for wired communication. In one aspect, a method includes selecting a gain scalar based at least in part on a constellation point distance associated with a constellation mapper for a line and a tone. The method also includes applying the gain scalar to a tone data output signal of a vector processor. | 05-26-2016 |
| 20160164573 | METHOD AND APPARATUS FOR CONFIGURING A COMMUNICATION INTERFACE - Aspects of the subject disclosure may include, for example, a system for exchanging electrical signals and guided electromagnetic waves between customer premises equipment and service provider equipment to provide uplink and/or downlink communication services. Other embodiments are disclosed. | 06-09-2016 |
| 20160197846 | SCHEDULING FOR FLOWS IN A POINT-TO-MULTIPOINT COMMUNICATIONS NETWORK | 07-07-2016 |
| 20190149371 | METHOD TO IMPROVE LATENCY IN AN ETHERNET PHY DEVICE | 05-16-2019 |
