42nd week of 2011 patent applcation highlights part 31 |
Patent application number | Title | Published |
20110255538 | METHOD OF IDENTIFYING DESTINATION IN A VIRTUAL ENVIRONMENT - Techniques are described for identifying destinations in a virtual network by defining virtual entities such as a port profile as the destination for network policies, such as redirect or span to be a logical set of ports (i.e., ports belonging to a port-profile or a port group) where the members of the set of ports may be added/removed dynamically without requiring any changes to the network policy. Further, a network administrator (or other user) may predefine the destinations for a network policy even before some or all of the destinations are active on a given virtualized system. In such cases, the network policies may go into effect when the required entities become available. | 2011-10-20 |
20110255539 | Communication System and Communication Control Device - Provided is a communication system which connects a unified C/U router to a network having C/U separation, wherein the stopping of U-plane communication of the unified C/U router is prevented even when the messages transmitted from a C-plane controller of the network having C/U separation do not arrive because of faults in the network having C/U separation. The routing information of a C-plane message (routing protocol) received by a U-plane controller is sent to an adjacent peer without being reflected in a routing table of the U-plane controller. The routing table of the U-plane controller is generated on the basis of the routing information (FIB information) received directly from the C-plane controller. In addition, a keep-alive packet from the unified C/U router is not sent to the C-plane controller and keeps alive the connection with the user router at the transmission destination. | 2011-10-20 |
20110255540 | System and Method for Adapting a Packet Processing Pipeline - An apparatus for forwarding packets includes a packet processing pipeline having a processing unit that processes packets compliant with a recognized communication protocol. A first port coupled to the packet processing pipeline is configured to receive a packet that does not comply with the recognized communication protocol and has a header that conforms to a second communication protocol. A data extraction unit extracts first destination information from the header of the packet and, based on the first destination information, generates second destination information that conforms to the recognized communication protocol. The processing unit determines, based on the second destination information, an egress interface to which the packet is to be forwarded. | 2011-10-20 |
20110255541 | IP MULTIPLEXING FROM MANY IP HOSTS - The invention relates to a method for multiplexing data packets from different IP hosts to one multiplexing packet before it is sent to a destination IP host, where the different data packets in the multiplexing packet are distributed to the different destination IP hosts. | 2011-10-20 |
20110255542 | ADVANCED PROCESSOR WITH MECHANISM FOR FAST PACKET QUEUING OPERATIONS - An advanced processor comprises a plurality of multithreaded processor cores each having a data cache and instruction cache. A data switch interconnect is coupled to each of the processor cores and configured to pass information among the processor cores. A messaging network is coupled to each of the processor cores and a plurality of communication ports. In one aspect of an embodiment of the invention, the data switch interconnect is coupled to each of the processor cores by its respective data cache, and the messaging network is coupled to each of the processor cores by its respective message station. Advantages of the invention include the ability to provide high bandwidth communications between computer systems and memory in an efficient and cost-effective manner. | 2011-10-20 |
20110255543 | METHOD AND SYSTEM FOR PROCESSING DATA - A data processing method and system and relevant devices are provided to improve the processing efficiency of cores. The method includes: storing received packets in a same stream sequentially; receiving a Get_packet command sent by each core; selecting, according to a preset scheduling rule, packets for being processed by each core among the stored packets; receiving a tag switching command sent by each core, where the tag switching command indicates that the core has finished a current processing stage; and performing tag switching for the packets in First In First Out (FIFO) order, and allocating the packets to a subsequent core according to the Get_packet command sent by the subsequent core after completion of the tag switching, so that the packet processing continues until all processing stages are finished. A data processing system and relevant devices are provided. With the present invention, the processing efficiency of cores may be improved. | 2011-10-20 |
20110255544 | SYSTEM AND METHOD FOR AN EXACT MATCH SEARCH USING POINTER BASED PIPELINED MULTIBIT TRIE TRAVERSAL TECHNIQUE - A method and system for finding an exact match for an N-bit wide address. A system for finding an exact match for an N-bit wide address in every clock cycle includes a label extraction module and one or more pipeline blocks. The label extraction module extracts K bits from the N-bit wide address. The extracted K bits are used by pipeline block | 2011-10-20 |
20110255545 | SYSTEM FOR CONTROLLING VIRTUAL LAN THROUGH NETWORK - A virtual local area network (LAN) control system for controlling at least one virtual LAN through a network accessed by a plurality of terminals includes a terminal, a virtual LAN switch, and a virtual LAN controller. The terminal has a proper identifier address to access the network, or receives a proper identifier address through an external device connected to the virtual LAN switch. The virtual LAN switch sets and provides at least one virtual LAN through the network. When the terminal accesses the virtual LAN controller to request to change the configuration of the virtual LAN, the virtual LAN controller assigns authority to change the virtual LAN to the terminal so as to change from the virtual LAN to which the terminal belongs to another virtual LAN. | 2011-10-20 |
20110255546 | CLOCK FOR A NODE OF A PACKET-SWITCHED NETWORK, AND ASSOCIATED SYNCHRONISATION METHOD - A method for synchronising a plurality of clocks ( | 2011-10-20 |
20110255547 | INFORMATION PROCESSING APPARATUS AND OPERATION METHOD THEREOF, COMPUTER PROGRAM, AND STORAGE MEDIUM - In an information processing system in which a plurality of modules are connected to a ring bus, data transfer efficiency is enhanced by deleting an unnecessary packet from the ring bus. This invention relates to an information processing system in which a plurality of modules that execute data processing are connected to a ring bus. More particularly, this invention relates to a ring bus operation technique that allows efficient data transfer by monitoring a flag of a packet, and removing an unnecessary packet from the ring bus. | 2011-10-20 |
20110255548 | GATEWAY-BASED AMI NETWORK - Apparatus and methodology provide communications between a utility consumption meter and a utility provider at least in part by way of Internet Protocol (IP) based communications. A gateway device, coupled via either wired or wireless communications links to a utility consumption meter, serves as an interface between the utility consumption meter and a central utility provider server. Communications between the gateway and the central utility provider server are by wired or wireless IP-based communications. At least a portion of the IP-based communications may be by way of public broadband networks operated by Internet Service Providers (ISPs), thereby avoiding the installation of specifically purposed collection infrastructure. | 2011-10-20 |
20110255549 | COMMUNICATION MANAGEMENT APPARATUS, COMMUNICATION APPARATUS, AND COMMUNICATION METHOD - A communication management apparatus includes a token-circulation-order-information storing unit that stores token circulation order, a token-frame processing unit that determines whether transmission right acquiring apparatus information of the token frame indicates the own apparatus and transmits a token frame in which first transmission right acquisition determination information indicating a sequence number of a communication apparatus that can acquire a transmission right in the token circulation order, second transmission right acquisition determination information indicating the number of frames that can be transmitted during one token frame circulation, and transmission right acquiring apparatus information indicating the next transmission destination of the token frame after the own apparatus acquired from the token circulation order are set, and a data-frame-communication processing unit that transmits and receives the data frame, thereby to reduce time required until a communication node that acquired the token frame transmits data. | 2011-10-20 |
20110255550 | METHOD, APPARATUS AND SYSTEM FOR SERVICE MIGRATION - A method for service migration is disclosed. A first Serving-Call Session Control Function (S-CSCF) receives a service migration command; the first S-CSCF receives a user's register message sent by an Interrogating-Call Session Control Function (I-CSCF), and decides, according to a preset configuration policy, whether to migrate the user's service. An apparatus and a system for service migration are also disclosed. By using the method, apparatus and system disclosed herein, the user's service can be migrated flexibly. | 2011-10-20 |
20110255551 | METHOD AND SYSTEM FOR WEIGHTED FAIR QUEUING - A system for scheduling data for transmission in a communication network includes a credit distributor and a transmit selector. The communication network includes a plurality of children. The transmit selector is communicatively coupled to the credit distributor. The credit distributor operates to grant credits to at least one of eligible children and children having a negative credit count. Each credit is redeemable for data transmission. The credit distributor further operates to affect fairness between children with ratios of granted credits, maintain a credit balance representing a total amount of undistributed credits available, and deduct the granted credits from the credit balance. The transmit selector operates to select at least one eligible and enabled child for dequeuing, bias selection of the eligible and enabled child to an eligible and enabled child with positive credits, and add credits to the credit balance corresponding to an amount of data selected for dequeuing. | 2011-10-20 |
20110255552 | FRAMED FLOWS OVER PACKET-SWITCHED FABRICS - A networking device and a method provide switching of framed signals using a packet switch fabric. Framed input signals, which may be OTN signals, are received and converted to packets. The conversion includes striping the received signal into virtual lanes and segmenting the lanes into packets. The packets are switched through the packet switch fabric, which may be an Ethernet switch, and then converted to framed output signals. The conversion includes reassembly of the packets into virtual lanes. The reassembled virtual lanes are frame aligned, deskewed, and combined to produce the framed output signals. | 2011-10-20 |
20110255553 | ROUTING INBOUND COMMUNICATIONS ACROSS CALL CENTERS AND THE LIKE - Communications within a communication management network are routed according to a dynamic scorecard routing method in which communication routing decision attributes of communication route destinations are monitored through data feeds from the communication route destinations at a communication router. Values of the communication routing decision attributes are processed to produce processed attribute values and these processed attribute values are stored in a scorecard routing database. Thereafter, upon receipt of an indication of an inbound communication, a call controller is instructed to route the inbound communication to one of the communication route destinations according to assessed scores of the communication route destinations compiled using the processed communication routing decision attribute values stored in the scorecard routing database. | 2011-10-20 |
20110255554 | SIGNAL PROCESSING USING SPECTRALLY PHASE ENCODED OPTICAL FREQUENCY COMBS - Methods, apparatus and systems for an optical system for data harvesting and pattern recognition. The system includes a mode locked laser for producing a comb of optical frequencies that is split into two identical combs, a wavelength division demultiplexer eparate the individual optical frequency components of one comb and modulates each optical frequency component with a different one of plural target objects. A second modulator modulates an input signal with the second comb and an optical splitter splits the modulated signal into plural optical frequency components each containing the input signal. An optical combiner simultaneously combines the components containing the real time signal with one of the components containing a target object to produce a temporally modulated interferogram, and a comparator simultaneously compares the two on a comb by comb basis using balanced differential detection to determine any of the plural target objects are found in the input signal. | 2011-10-20 |
20110255555 | ADAPTIVE RATE SHIFTING FOR DELIVERY OF VIDEO SERVICES TO SERVICE GROUPS - A video stream is provided to a set top box of a viewer to fulfill the viewer's request for a video on-demand service. The video stream is encoded at one of a plurality of encoding rates selected by a Service Quality Manager based on parameters defined for a service group, which in various embodiments may comprise the viewer, or the viewer along with other customers serviced by a single QAM. The parameters used for determining the encoding rate may involve currently allocated bandwidth, the viewer's service parameters, other customer's service parameters, and historical data regarding encoding rate selection data. The encoding rate used to encode a stream may be modified during streaming in response to other service requests. The encoding rate may be shifted based on anticipated service requests from other members in the service group. | 2011-10-20 |
20110255556 | METHOD FOR TRANSPORT STREAM SYNCHRONIZING IN A MULTIPLEXER COMPRISING AN EXTERNAL CORPOCESSOR - The present invention relates to a method for synchronizing a plurality of input transport streams into an output transport stream in a multiplexing device, at least one input stream being modified by an external audio/video coprocessor before multiplexing. The external audio/video coprocessor and the multiplexing device have no common time reference. To avoid having to resynchronise the input stream coming from the external coprocessor, it is proposed according to the invention to transmit, with at least one transport packet of said input stream transmitted to the external coprocessor, an item of ‘synchronisation’ information based on the input timestamp of said transport packet at the multiplexer input. Application: production and broadcasting of television programme packages. | 2011-10-20 |
20110255557 | Coexistence of Prime, S-FSK and G3 Devices in Powerline Communications - Communication devices, such as base nodes and modems, that comply with two or more different standards operate on a shared communication channel. To avoid mutual interference, a base node operating under a first standard reserves time using a contention free period designation. The base node allows devices operating under a second standard to communicate during the reserved time by not assigning the contention free period to another device operating under the first standard. Alternatively, a device using the first standard may avoid interference from transmissions generated under the second standard by modifying data packets prior to transmission. A prefix corresponding to a preamble in the second standard is added to the beginning of the data packet created under the first standard. Devices operating under the second standard observe the prefix and recognize that the channel is active. The second-standard devices backoff from transmission thereby minimizing interference. | 2011-10-20 |
20110255558 | INTERFACE APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING MEDIA DATA - An interface for providing a media service is provided, the interface including an encapsulation layer for encapsulating coded media data; a delivery layer for transmitting the encapsulated media data to another entity; and a control layer for controlling transmission of the media data. | 2011-10-20 |
20110255559 | DIGITAL DATA TRANSMITTING DEVICE AND DIGITAL DATA RECEIVING DEVICE - To provide a digital data transmitting apparatus and a digital data receiving apparatus that can realize, even when a transmission channel characteristic changes because of aged deterioration or the like of a relay, improvement of a reception performance following the change. | 2011-10-20 |
20110255560 | TRANSMISSION OVER AN 12C BUS - A method and a system of multichannel transmission over a twin-wire bus including a data signal and a synchronization signal, data of a first channel being transmitted by a state coding of the data signal for a time period containing a first state of the synchronization signal, data of a second channel being transmitted by pulse coding outside of said period. | 2011-10-20 |
20110255561 | APPARATUS CONFIGURED TO PROVIDE A WAVELENGTH-SWEPT ELECTRO-MAGNETIC RADIATION - Exemplary embodiments of apparatus according to the present disclosure are provided. For example, an apparatus for providing electromagnetic radiation to a structure can be provided. In one exemplary embodiment, the apparatus can provide at least one electromagnetic radiation, and include at least one first arrangement which can be configured to generate the electromagnetic radiation(s) having at least one wavelength that varies over time. The exemplary apparatus can also include at least one second arrangement which can be configured to power the first arrangement(s) independently from an external power source. In another exemplary embodiment the apparatus can include at least one particular arrangement which is configured to generate the electromagnetic radiation(s) having at least one wavelength that varies over time. The particular arrangement(s) can include a resonant cavity that has a roundtrip optical transit time of approximately less than 0.7 nsec. | 2011-10-20 |
20110255562 | PLANE WAVEGUIDE TYPE LASER AND DISPLAY DEVICE - A plane waveguide type laser according to the present invention includes: a plate-shaped laser medium ( | 2011-10-20 |
20110255563 | PULSE SHAPER AND LASER WITH PULSE SHAPER - A pulse shaper for compensating group runtime effects is provided. The pulse shaper comprising a first and a second dispersive element. An optical pulse can be coupled to the pulse shaper along a coupling direction such that said pulse exits from the pulse shaper after passing through the first and the second dispersive element along an exit direction. The first and the second dispersive element are formed and arranged to be movable relative to each other such that the path length to be traversed by the optical pulse through the first and the second dispersive element after coupling to the pulse shaper can be adjusted without any change in an offset between the coupling direction and the exit direction. The first and the second dispersive element are arranged in such a way that the shape of the optical pulse experiences a change as the pulse travels through the pulse shaper. | 2011-10-20 |
20110255564 | IMAGE DISPLAY DEVICE AND LASER LIGHT SOURCE DEVICE - An image display device including a laser light source device that includes: laser elements of different output wavelengths; a pulse signal generating unit that generates pulse signals based on a video signal; a laser driving unit that drives the laser elements in synchronization with the pulse signals; an optical combining system that combines laser beams, outputs a combined laser beam, and retrieves part of the combined laser beam; a light amount measuring unit that measures a light amount of a retrieved laser beam; and a light amount adjusting unit that causes the laser driving unit to individually adjust a light amount for the each laser element based on a measurement value, wherein the pulse signal generating unit operates in a light amount measuring mode so that emission timings would not coincide one another, and the light amount measuring unit individually measures a light amount of the each laser element. | 2011-10-20 |
20110255565 | LASER LIGHT DETECTION CIRCUIT - The invention provides a laser light detection circuit that prevents a peak output occurring when the circuit switches between the operation stop mode and the operation mode so as to prevent the breakdown or malfunction of the next-connected circuit. A laser light detection circuit has a differential amplifier that amplifies and outputs a signal corresponding to the intensity of laser light, a drive transistor having a base to which the output of the differential amplifier is applied, a second constant-current source connected to the emitter of the drive transistor, an output transistor having a base connected to the emitter of the drive transistor, a bypass transistor connected between the emitter of the drive transistor and the ground, and a control circuit. The control circuit forms a bypass current route from the second constant-current source to the ground through the bypass transistor by turning on the bypass transistor when the circuit switches from the operation stop mode to the operation mode. | 2011-10-20 |
20110255566 | METHOD FOR DERIVING PRECISE CONTROL OVER LASER POWER OF AN OPTICAL PICKUP UNIT, AND ASSOCIATED AUTOMATIC POWER CALIBRATION CIRCUIT - A method for deriving precise control over laser power of an optical pickup unit (OPU) includes: providing an analog-to-digital converter (ADC) within an automatic power calibration (APC) circuit to derive a path gain and/or a path offset from the APC circuit; and selectively performing compensation according to the gain and/or the path offset, in order to maintain precision of a relationship between the laser power and a target command utilized for controlling the laser power. An associated APC circuit comprising an ADC and at least one compensation module is further provided. The ADC is utilized for deriving a path gain and/or a path offset from the APC circuit. The compensation module is utilized for selectively performing compensation according to the path gain and/or the path offset, in order to control the laser power by a target command. | 2011-10-20 |
20110255567 | Laser Diodes Comprising QWI Output Window and Waveguide Areas and Methods of Manufacture - In accordance with one embodiment of the present disclosure, a process of manufacturing a semiconductor laser diode comprising a gain section, a QWI output window, and QWI waveguide areas is provided. The QWI waveguide areas are fabricated using quantum well intermixing and define a QWI waveguide portion in the QWI output window of the laser diode. The QWI output window is transparent to the lasing wavelength λ | 2011-10-20 |
20110255568 | THERMAL SENSORS AND METHODS OF OPERATING THEREOF - A thermal sensor includes a comparator having a first and second input nodes. A reference voltage generator is electrically coupled with the first input node. The reference voltage generator is configured to provide a reference voltage that is substantially temperature-independent. A temperature sensing circuit is electrically coupled with the second input node. The temperature sensing circuit is configured to provide a temperature-dependent voltage. The temperature sensing circuit includes a current mirror. A first metal-oxide-semiconductor (MOS) transistor is electrically coupled between the current mirror and ground. A first resistor is electrically coupled with the current mirror. A second MOS transistor is electrically coupled with the first resistor in series. The second MOS transistor and the first resistor are electrically coupled with the first MOS transistor in a parallel fashion. | 2011-10-20 |
20110255569 | METHOD FOR SENDING PULSES IN A TRANSMISSION CHANNEL - A method and apparatus are provided for sending pulses from a sender device to a receiver device in a transmission channel. The pulses represent information symbols, with each of these pulses being associated with a time slot in a symbol time. The method includes a training step that is carried out before sending payload information and that includes sending a training sequence made up of two parts. A first part of the training sequence includes at least one pulse of energy that is greater than the energy of a pulse carrying payload information. There are a large number of time slots between the sending of the pulse and the sending of the next pulse. A second part of the training sequence includes a set of pulses known in advance and similar to the pulses used for carrying payload information, the energy of each of these pulses being equivalent to the energy of a pulse carrying payload information. | 2011-10-20 |
20110255570 | ADAPTIVE FREQUENCY HOPPING IN TIME-SLOTTED BASED WIRELESS NETWORK - In a wireless network system, the nodes share a frequency hopping pattern. A method comprises providing a channel list table which includes, for each transmitting node, one or more channel lists, each channel list containing conditions of the channels of the shared frequency hopping pattern that include at least one available channel for communications with a target node; selecting a channel of a next allocated time slot from the shared frequency hopping pattern at the transmitting node; selecting the channel list for the target node from the channel list table, to which the transmitting node transmits; checking if the selected channel is available based on the selected channel list; setting the selected channel at the transmitting node if the selected channel is available; and calculating a substitute channel from the channel list if the selected channel is not available. | 2011-10-20 |
20110255571 | ENERGY EFFICIENCY IN WIRLESS COMMUNICATION SYSTEMS - Wireless communication systems and methods utilize one or more remote terminals, one or more base terminals, and a communication channel between the remote terminal(s) and base terminal(s). The remote terminal applies a direct sequence spreading code to a data signal at a spreading factor to provide a direct sequence spread spectrum (DSSS) signal. The DSSS signal is transmitted over the communication channel to the base terminal which can be configured to despread the received DSSS signal by a spreading factor matching the spreading factor utilized to spread the data signal. The remote terminal and base terminal can dynamically vary the matching spreading factors to adjust the data rate based on an estimation of operating quality over time between the remote terminal and base terminal such that the amount of data being transmitted is substantially maximized whilst providing a specified quality of service. | 2011-10-20 |
20110255572 | ESTIMATING FREQUENCY-OFFSETS AND MULTI-ANTENNA CHANNELS IN MIMO OFDM SYSTEMS - Techniques are described for carrier frequency offset (CFO) and channel estimation of orthogonal frequency division multiplexing (OFDM) transmissions over multiple-input multiple-output (MIMO) frequency-selective fading channels. A wireless transmitter forms blocks of symbols by inserting training symbols within two or more blocks of information-bearing symbols. The transmitter applies a hopping code to each of the blocks of symbols to insert a null subcarrier at a different position within each of the blocks of symbols, and a modulator outputs a wireless signal in accordance with the blocks of symbols. A receiver receives the wireless signal and estimates the CFO, and outputs a stream of estimated symbols based on the estimated CFO. | 2011-10-20 |
20110255573 | Iterative Interference Suppression Using Mixed Feedback Weights and Stabilizing Step Sizes - A receiver is configured for canceling intra-cell and inter-cell interference in coded, multiple-access, spread-spectrum transmissions that propagate through frequency-selective communication channels. The receiver employs iterative symbol-estimate weighting, subtractive cancellation with a stabilizing step-size, and mixed-decision symbol estimate. Receiver embodiments may be implemented explicitly in software of programmed hardware, or implicitly in standard Rake-based hardware either within the Rake (i.e., at the finger level) or outside the Rake (i.e., at the user of subchannel symbol level). | 2011-10-20 |
20110255574 | Converter Device to Convert Between Different Small Form Factor Pluggable Standards - A converter apparatus is provided that enables conversion of data (traffic) between different form factor pluggable standards. The converter apparatus comprises a first connector configured to connect to a first device according to a first form factor pluggable standard, and a second connector configured to connect to a second device according to a second form factor pluggable standard. The converter apparatus further comprises a signal processor configured to be coupled between the first connector and the second connector. The signal processor is configured to convert at least one of transmit signals in the first form factor pluggable standard received at the first connector to transmit signals in the second form factor pluggable standard and receive signals in the second form factor pluggable standard received at the second connector to receive signals in the first form factor pluggable standard. A controller in the converter apparatus is configured to be coupled to the signal processor, to the first connector and to the second connector. The controller configures the signal processor as to parameters used for converting signals between the first and second form factor pluggable standards. | 2011-10-20 |
20110255575 | COMMUNICATIONS DEVICE WITH SEPARATE I AND Q PHASE POWER AMPLIFICATION HAVING SELECTIVE PHASE AND MAGNITUDE ADJUSTMENT AND RELATED METHODS - A communications device may include an In-phase (I) circuit having an In-phase modulator and mixer circuit, and an I power amplifier circuit coupled thereto, the I circuit configured to modulate and amplify a digital baseband I signal to generate an amplified I signal, and a Quadrature (Q) circuit having a Q modulator and mixer circuit, and a Q power amplifier circuit coupled thereto, the Q circuit configured to modulate and amplify a digital baseband Q signal to generate an amplified Q signal separate from the amplified I signal. The communications device may include a processor configured, for example, to selectively switch the digital baseband signal and the digital baseband Q signal between the I and Q signal inputs to provide selective phase shifting for the digital baseband I and Q signals. For example, the controller may selectively phase shift the digital baseband I and Q signals, and control the I and Q power amplifier circuits to vary an amplitude of the amplified I and Q signals. | 2011-10-20 |
20110255576 | System for mimo equialization of multi-channel transceivers with precoding - The present invention relates to data processing techniques in multi-channel data transmission systems. In this invention, a method to efficiently deal with FEXT is proposed and a circuit architecture to implement the proposed MIMO-THP equalizer is developed for the application of high/ultra-high speed Ethernet systems. The proposed method relies on the fact that FEXT inherently contains information about the symbols transmitted from the far end transmitters and it can be viewed as a signal rather than noise. Compared with the traditional FEXT cancellation approaches, the proposed design inherits both advantages of MIMO equalization technique and TH precoding technique, thus having better performance. Unlike the existing MIMO-THP technology, the proposed design completely removes the feedback loops in the existing MIMO-THP architecture. Therefore, pipelining techniques can be easily applied to obtain a high-speed design of a multi-channel DSP transceiver. | 2011-10-20 |
20110255577 | Apparatus for calculating weights associated with a received signal and applying the weights to transmit data - An apparatus for calculating weights associated with a received signal and applying the weights to transmit data is provided. The apparatus comprises: at least two antennas; a multiple-input and multiple-output capable transceiver in communication with each of the at least two antennas; and processing circuitry capable of causing diversity combining, the processing circuitry in communication with the multiple-input and multiple-output capable transceiver. In operation, the processing circuitry is capable of causing the apparatus to: receive a first signal, calculate weights associated with the first signal, and apply the weights to transmit data. Additionally, the apparatus is configured such that the at least two antennas are capable of transmitting a second signal including the transmit data to a multiple-input capable node. | 2011-10-20 |
20110255578 | Method and System for Frequency Down-Conversion and Frequency Up-Conversion - A method and system is described wherein a signal with a lower frequency is up-converted to a higher frequency. In one embodiment, the higher frequency signal is used as a stable frequency and phase reference. In another embodiment, the invention is used as a transmitter. The up-conversion is accomplished by controlling a switch with an oscillating signal, the frequency of the oscillating signal being selected as a sub-harmonic of the desired output frequency. When the invention is being used as a frequency or phase reference, the oscillating signal is not modulated, and controls a switch that is connected to a bias signal. When the invention is being used in the frequency modulation (FM) or phase modulation (PM) implementations, the oscillating signal is modulated by an information signal before it causes the switch to gate the bias signal. In the amplitude modulation implementation (AM), the oscillating signal is not modulated, but rather causes the switch to gate a reference signal that is substantially equal to or proportional to the information signal. In the FM and PM implementations, the signal that is output from the switch is modulated substantially the same as the modulated oscillating signal. In the AM implementation, the signal that is output from the switch has an amplitude that is a function of the information signal. In both embodiments, the output of the switch is filtered, and the desired harmonic is output. | 2011-10-20 |
20110255579 | COMMUNICATION APPARATUS, METHOD OF CONTROLLING SAME AND COMMUNICATION SYSTEM - In order to achieve more efficient data transfer by broadcast, a communication apparatus receives data that has been broadcast from a transmitting apparatus to a plurality of communication apparatuses, and transmits a response signal regarding the data using a carrier different from those of the other communication apparatuses from among a plurality of mutually orthogonal carriers. | 2011-10-20 |
20110255580 | PRECODING SIGNALING IN A MIMO WIRELESS COMMUNICATION SYSTEM - A method for performing data transmission between a transmitter and a receiver. The method includes the steps of generating a feedback message at the receiver in response to data received from the transmitter, assigning an identifier for the feedback message, storing the feedback message in association with the identifier in the receiver, transmitting the feedback message and the identifier to the transmitter, determining, at the transmitter, transmission format for data to be transmitted to the receiver based on the feedback message received from the receiver; and transmitting data and a control message, by the transmitter, using the determined transmission format, with the control message comprising the identifier of the feedback message based on which the transmission format is determined. | 2011-10-20 |
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. | 2011-10-20 |
20110255582 | SELECTIVE JOINT DEMODULATION - Systems, methods and apparatuses for jointly demodulating data signals are disclosed. In accordance with the method, pilot signals are received from a base station and are processed. In addition, from a set of expected co-scheduled data streams, a subset of the co-scheduled data streams that are actually transmitted by the base station are determined based on the pilot signals. Further, a group of the transmitted co-scheduled data streams are selected from the determined subset. The data signals are received and jointly demodulated by employing the selected group of co-scheduled data streams and by suppressing non-selected data streams from the determined subset. | 2011-10-20 |
20110255583 | ELECTRICAL PULSE DATA TRANSMISSION USING A LOOK-UP TABLE - Input data is encoded using a look-up table and then transmitted over a conductive transmission medium as a series of electrical pulses. The look-up table includes data elements. The length of each pulse is calibrated to correspond to one of the data elements in the look-up table. Upon receipt at another end of the transmission medium, the data is decoded using a look-up table. This decoding includes measuring the length of each received pulse to match the measured length to a corresponding one of the data elements in the look-up table. | 2011-10-20 |
20110255584 | DEVICE, CHANNEL QUALITY ESTIMATION METHOD, AND TRANSMISSION METHOD - A mobile device includes a first receiving unit that receives a dedicated pilot signal included in a dedicated pilot signal part of a data unit that is transmitted from a base station to the self-device, an second receiving unit that receives a signal included in a dedicated pilot signal part of a data unit that is transmitted from the base station to the other device other than the self-device, a CQI generating unit that estimates a channel quality indicator that indicates a reception environment when the self-device receives data on the basis of the dedicated pilot signal received by the first receiving unit and the signal received by the second receiving unit, and a radio unit that transmits the channel quality indicator estimated by the CQI generating unit to the base station. Therefore, the present invention can contribute to the assignment optimization of a radio resource of the base station. | 2011-10-20 |
20110255585 | METHOD AND APPARATUS FOR SERIAL COMMUNICATION USING CLOCK-EMBEDDED SIGNALS - Apparatus for serial communication using embedded clock signals includes a data divider for dividing a data stream into odd-numbered and even-numbered data streams; a clock-embedded signal generator for generating odd-numbered and even-numbered embedded clock signals by pulse amplitude modulating the odd-numbered and even-numbered data streams and, when an external clock is input, inverting polarities of the pulse amplitude modulated odd-numbered and even-numbered data streams; a clock-embedded signal recovery unit for recovering the odd-numbered and even-numbered data streams by comparing amplitudes of the odd-numbered and even-numbered embedded clock signals with reference voltages, respectively, and recovering synchronization information of the clock by detecting when amplitude polarities of the odd-numbered and even-numbered embedded clock signals are inverted; and a data integrator for integrating the odd-numbered and even-numbered data streams and supplying the result as the data stream. | 2011-10-20 |
20110255586 | SYSTEMS AND METHODS FOR FREQUENCY DOMAIN REALIZATION OF NON-INTEGER FRACTIONALLY SPACED TIME DOMAIN EQUALIZATION - Various systems and methods are described for performing fractionally spaced time domain equalization (TEQ). One embodiment is a method implemented in a communication system for training a fractionally spaced time domain equalizer (TEQ). The method comprises performing an initialization phase, averaging a received signal in the system to reduce effects of noise in a channel, determining a channel estimate, and aligning an ideal reference signal with the received signal. The method further comprises updating a target response filter according to a non-integer multiple of a base sampling rate, determining an adaptation error based on useful information both inside and outside a Nyquist band of the TEQ, and updating the TEQ according to the adaptation error. | 2011-10-20 |
20110255587 | RECEPTION DEVICE AND SCRAMBLING CODE DECODING METHOD - A reception device includes: a channel estimation circuit to receive a first signal scrambled by one of N scrambling codes and transmitted through M carriers having different frequencies, and calculate N channel estimation values corresponding to N types of first specified signals based on the first signal, where N is an integer greater than or equal to 2, where M is an integer greater than or equal to 2; a channel equalization circuit to channel-equalize a second signal, which is transmitted using the one of N scrambling codes and the M carriers, based on the N channel estimation values; and a scrambling code decoding circuit to evaluate (N*M) equalized second signals based on N types of second specified signals and decode a scrambling code of the second signal from among the N scrambling codes. | 2011-10-20 |
20110255588 | APPARATUS AND METHOD FOR ENCODING AND DECODING MULTICHANNEL SIGNAL - Disclosed is an apparatus for encoding and decoding multi-channel signals. The apparatus for encoding the multi-channel signals may shift a phase of the multi-channel signals based on a characteristic of the multi-channel signals. An encoded bitstream with respect to the multi-channel signals may be generated using a downmix signal and a residual signal extracted from the phase-shifted multi-channel signals. | 2011-10-20 |
20110255589 | Methods of compressing data and methods of assessing the same - In a number of embodiments, methods for compressing video data are disclosed. In addition, in a number of embodiments, methods for assessing the quality of compressed videos are disclosed. | 2011-10-20 |
20110255590 | DATA TRANSMISSION APPARATUS AND METHOD, NETWORK DATA TRANSMISSION SYSTEM AND METHOD USING THE SAME - Disclosed herein are a data transmission apparatus and method, and a network data transmission system and method using the same. A data transmission method according to an exemplary embodiment of the present invention encodes photographed images to generate image live data and generates image analyzing data based on the photographed images. Thereafter, the data transmission method calculates the network transmission bandwidth and stores image live data as image preserving data simultaneously with transmitting the image analyzing data when the network transmission bandwidth is smaller than the predetermined threshold value. If it is determined that the network transmission bandwidth is larger than a predetermined threshold value, the data transmission method transmits the image live data or transmits the image analyzing data and/or the image preserving data along with the image live data. | 2011-10-20 |
20110255591 | METHOD AND APPARATUS FOR PROCESSING VIDEO DATA - A method for signalling an intra chroma prediction mode and a method for implementing the signalled intra chroma prediction mode, the intra chroma prediction mode taking an intropolation of previously predicted luma samples from neighboring blocks of video data to attain an intra chroma prediction of a current chroma prediction unit. | 2011-10-20 |
20110255592 | VIRTUAL VIEW IMAGE SYNTHESIS METHOD AND APPARATUS - The virtual view image synthesis method according to the present invention comprises: generating an intermediate picture from a first viewpoint and an intermediate picture from a second viewpoint by swapping a reference picture from a first viewpoint and a reference picture from a second viewpoint; determining whether there is a hole in said intermediate picture from a first viewpoint; if there is a hole in said intermediate picture from a first viewpoint, obtaining the pixel value of said intermediate picture from a second viewpoint based on the location of said hole; and allocating the pixel value of said intermediate picture from a second viewpoint to said hole. A virtual picture is synthesized using a reference picture, thereby reducing the quantity of information due to encoding a virtual viewpoint picture. | 2011-10-20 |
20110255593 | Architecture And Method For Remote Platform Control Management - An integrated circuit is a baseboard management controller that is a fully integrated system-on-a-chip microprocessor incorporating function blocks and interfaces that provide remote management solution. The integrated circuit uses a microprocessor, a media co-processor to accelerate video processing, and a set of system and peripheral functions that are useful in a variety of remote management applications. It further includes an integrated USB high-speed device and an OTG interface to support keyboard, mouse and mass storage emulation without additional external components, and two integrated MII LAN interfaces and one FSB interface, a memory controller to support a variety of static and dynamic memory components, an encryption controller to ensure secure remote management sessions and IPMI2.0-compliant BMC interfaces. The integrated circuit is based on structured ASIC technology, which enables easy customization of function blocks according to customer demands or new industry standards. | 2011-10-20 |
20110255594 | Rate Control in Video Coding - A method of rate control in coding of a video sequence to generate a compressed bit stream is provided that includes computing a sequence base quantization step size for a sequence of pictures in the video sequence, computing a picture base quantization step size for a picture in the sequence of pictures based on the sequence base quantization step size, a type of the picture, and a level of the picture in a rate control hierarchy, and coding the picture using the picture base quantization step size to generate a portion of the compressed bit stream. | 2011-10-20 |
20110255595 | QUANTIZATION ADJUSTMENT BASED ON TEXTURE LEVEL - A video encoder identifies a current smooth region of a current picture in a sequence and performs temporal analysis by determining whether a corresponding region in at least one previous and/or future picture is smooth. Based at least in part on the temporal analysis, the encoder adjusts quantization in the current smooth region. An encoder determines a differential quantization interval for a sequence, the interval comprising an interval number. The interval constrains the encoder to skip differential quantization for at least the interval number of predicted pictures after a predicted differentially quantized picture. An encoder analyzes texture in a current picture and sets a smoothness threshold. The encoder compares texture data with the smoothness threshold and adjusts differential quantization for at least part of the current picture based on a finding of at least one smooth region in the current picture according to the smoothness threshold. | 2011-10-20 |
20110255596 | FRAME RATE UP CONVERSION SYSTEM AND METHOD - The invention is directed to a frame rate up conversion (FRUC) system and method. A motion estimation (ME) unit is configured to generate at least one motion vector (MV) according to a frame input. A triple-line buffer based motion compensation (MC) unit is configured to generate an interpolated frame according to the MV, a reference frame and a current frame, thereby generating a frame output with a frame rate higher than a frame rate of the frame input. | 2011-10-20 |
20110255597 | Method and System for Reducing Flicker Artifacts - A method of encoding a frame of a digital video sequence as an intracoded frame (I-frame) is provided that includes performing motion estimation on a macroblock of the frame to compute a motion estimation measure and a motion vector for the macroblock, wherein a previous original frame of the digital video sequence that was encoded as a predictive coded frame (P-frame) is used as a reference frame, and selectively encoding the macroblock or a motion-compensated macroblock from a reconstructed P-frame based on the motion estimation measure and an adaptive flicker threshold, wherein the reconstructed P-frame was generated by decoding the P-frame. | 2011-10-20 |
20110255598 | METHOD FOR PERFORMING LOCAL MOTION VECTOR DERIVATION DURING VIDEO CODING OF A CODING UNIT, AND ASSOCIATED APPARATUS - A method for performing local motion vector derivation during video coding of a coding unit includes: processing a plurality of sub-coding units in the coding unit; and performing motion vector prediction of each of the sub-coding units. More particularly, the step of performing motion vector prediction of each of the sub-coding units further includes: deriving a motion vector of a specific sub-coding unit of the sub-coding units by utilizing at least one motion vector of at least one other sub-coding/coding unit. Thus, the method performs motion compensation on the specific sub-coding unit according to the motion vector of the specific sub-coding unit. An associated apparatus is also provided. | 2011-10-20 |
20110255599 | APPARATUS AND METHOD FOR MOTION ESTIMATION - A device for motion estimation ( | 2011-10-20 |
20110255600 | METHOD FOR PERFORMING LOCALIZED MULTIHYPOTHESIS PREDICTION DURING VIDEO CODING OF A CODING UNIT, AND ASSOCIATED APPARATUS - A method for performing localized multihypothesis prediction during video coding of a coding unit includes: dividing the coding unit into a plurality of sub-coding units; and performing motion vector prediction of each of the sub-coding units. More particularly, the step of performing motion vector prediction of each of the sub-coding units further includes: obtaining a plurality of motion vectors for multihypothesis motion compensation of a specific sub-coding unit of the sub-coding units from a plurality of other sub-coding/coding units. The method further includes performing multihypothesis motion compensation on the specific sub-coding unit according to the plurality of motion vectors, and more particularly, includes utilizing a linear combination of a plurality of pixel values of the plurality of other sub-coding/coding units as a predicted pixel value of the specific sub-coding unit. An associated apparatus is also provided. | 2011-10-20 |
20110255601 | PREDICTION OF AN IMAGE BY COMPENSATION DURING FORWARD MOVEMENT - A method is provided for predicting an image by compensation during forward movement from at least one reference image. For at least one block of a reference image, referred to as a reference block, the prediction method includes the following steps: determining at least one piece of movement information, representing a movement between said reference block and a matching block in the image to be predicted; determining at least one enlarged block, including the reference block and at least one point of a block adjacent to said reference block in the reference image; and determining a prediction value for at least one point of the image to be predicted from the at least one enlarged block and from the movement information determined for the reference block. | 2011-10-20 |
20110255602 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM - The present invention relates to an image processing apparatus, an image processing method, and a program capable of increasing the quality of a predicted image generated through inter prediction even when a motion compensation process with integer-pel accuracy is performed. | 2011-10-20 |
20110255603 | METHOD AND APPARATUS FOR RATE DISTORTION OPTIMISATION - There is provided a method of optimising Rate Distortion Optimisation candidate assessment in hardware apparatus, comprising determining which Rate Distortion Optimisation candidates out of aplurality of candidates are separately processable, determining a processing delay of critical portions of candidate assessment hardware, determining a rule set governing how the separately processable candidates may be ordered for processing, determining an optimised processing order for processing the separately processable candidate assessments, dependent on the processing delay of critical portions of the candidate assessment hardware and the determined rule set, and processing the candidates according to the determined processing order. There is also provided an apparatus for carrying out the improved Rate Distortion Optimisation method. | 2011-10-20 |
20110255604 | METHOD OF BLOCK MATCHING-BASED MOTION ESTIMATION IN VIDEO CODING - Motion estimation is efficient to reduce redundant information among successive frames in video compression applications. The blocks in the current frame can be replaced with the neighboring blocks in the spatial directions in the previous frame with small errors. Many types of motion estimation methods such as Block Matching Algorithm are widely used to take a balance between a good image quality and the computation complexity. A Block Matching Algorithm named as New Cellular Search (NCS) Algorithm utilizes two particular search patterns: HCSP and VCSP, in the horizontal and vertical directions to search the best motion vector. Three performance measurements including peak signal to noise ration (PSNR), Average Search Point (ASP), and Mean Square Error (MSE) are used to compare this new search algorithm with some major motion estimations like FS, TSS, CS, and NCDS. The NCS is very efficient in computation reduction while keeping the almost same picture quality. | 2011-10-20 |
20110255605 | METHODS AND ARCHITECTURE FOR INDEXING AND EDITING COMPRESSED VIDEO OVER THE WORLD WIDE WEB - A system and method is provided for editing and parsing compressed digital information. The compressed digital information may include visual information which is edited and parsed in the compressed domain. In a preferred embodiment, the present invention provides a method for detecting moving objects in a compressed digital bitstream which represents a sequence of fields or frames of video information for one or more captured scenes of video. | 2011-10-20 |
20110255606 | SPATIAL NOISE REDUCTION CIRCUIT AND APPROACH THEREFOR - Video data is processed according to grid-based characteristics. According to an example embodiment of the present invention, regions of an image centered on a horizontal and/or vertical grid are identified. For each of these regions, video data representing central sub-regions therein is filtered to mitigate blocking artifacts. These approaches may be carried out upon regions including a block of pixels, with central sub-regions including a centrally-located pixel and other pixels adjacent thereto. These approaches may also be carried out on video data such as a compressed bitstream, with aspects of the grid identification and filtering based on one or both of the compressed bitstream and decoded data therefrom. | 2011-10-20 |
20110255607 | DOCKING STATION - Docking station for a modular device for digital multimedia reception, in particular for digital television reception, for the detachable coupling of a device for decoding digital multimedia signals, wherein the docking station comprises a back end interface | 2011-10-20 |
20110255608 | METHOD AND APPARATUS FOR ENCODING/DECODING COLOR IMAGE - The present disclosure relates to a method and an apparatus for encoding/decoding a color image or video. The video encoding apparatus encodes a luminance component block for a current block of an image, performs a selection of a color format among a plurality of color formats to encode a chrominance component block for the current block of the image according to the color format upon selection, and generates and outputs a bitstream including the encoded luminance component block, the encoded chrominance component block, and information on the selected color format. The disclosure enables an improvement in compression performance by allowing encoding and decoding one video component image in various color formats. | 2011-10-20 |
20110255609 | System And Method For Temporal Out-Of-Order Compression And Multi-Source Compression Rate Control - A system, method, and computer program product are provided for temporal video compression. In use, portions of video are buffered in a first order. Further, the portions of video are at least partially temporally compressed in a second order. Another system, method, and computer program product are further provided for compressing video from a plurality of sources. In use, video is received from a plurality of sources. Such video from the sources is then compressed. Such compression is carried out using a plurality of rate controls. In various embodiments, the video may be received by way of a single video stream, and/or the compression may be carried by way of a single compression module. | 2011-10-20 |
20110255610 | METHOD AND DEVICE FOR VIDEO IMAGE PROCESSING, CALCULATING THE SIMILARITY BETWEEN VIDEO FRAMES, AND ACQUIRING A SYNTHESIZED FRAME BY SYNTHESIZING A PLURALITY OF CONTIGUOUS SAMPLED FRAMES - To acquire a high-resolution frame from a plurality of frames sampled from a video image, it is necessary to obtain a high-resolution frame with reduced picture quality degradation regardless of motion of a subject included in the frame. Because of this, between a plurality of contiguous frames Fr | 2011-10-20 |
20110255611 | Powered Patch Panel - A powered patch panel (PPP) is disclosed that inserts power in mid-span regions of a network and provides fault-tolerance at the power supply level and the power-plane level. Information such as physical location, port status and policy enforcement information may be locally stored and utilized by a processor of the PPP to achieve network control and monitoring. A network management system and/or element management system may be provided to interface with processors of PPPs to achieve network monitoring, control and policy enforcement goals. | 2011-10-20 |
20110255612 | MIXED SIGNAL STOCHASTIC BELIEF PROPAGATION - A processor implements a network of functional nodes and communication paths between the nodes. The processor includes a plurality of circuit implementations of the functional nodes of the processor; and a plurality of signal paths implementing the communication paths linking the circuit implementations of the nodes. At least some of the signal paths are configured to pass signal values represented according to temporal patterns of signal levels on the signal paths. The processor also includes a plurality of circuit components for conversion between a signal value represented as a signal level (e.g., voltage or current level) and a signal value represented as a temporal pattern. | 2011-10-20 |
20110255613 | System and Method for Feeding Back Channel Information - A system and method for feeding back channel information are provided. A method for communications device operations includes generating feedback information, encoding the feedback information to produce a feedback payload, and transmitting the feedback payload to a communications server serving a communications device. The feedback information includes at least a first long term wideband channel statistics and a second long term wideband channel statistics. | 2011-10-20 |
20110255614 | APPARATUS FOR PROVIDING DIGITAL CONTENT AND METHOD THEREOF - An apparatus for providing content operable in association with an input apparatus, and a method thereof are provided. According to the apparatus and method, a control signal corresponding to an action of a user is received from an input apparatus associated with the content, a content associated with the input apparatus based on the received control signal is searched, and the searched content is provided. | 2011-10-20 |
20110255615 | Apparatus for Data Recovery in a Synchronous Chip-to-Chip System - An apparatus that reduces sampling errors for data communicated between devices uses phase information acquired from a timing reference signal such as a strobe signal to align a data-sampling signal for sampling a data signal that was sent along with the timing reference signal. The data-sampling signal may be provided by adjustably delaying a clock signal according to the phase information acquired from the strobe signal. The data-sampling signal may also have an improved waveform compared to the timing reference signal, including a fifty percent duty cycle and sharp transitions. The phase information acquired from the timing reference signal may also be used for other purposes, such as aligning received data with a local clock domain, or transmitting data so that it arrives at a remote device in synchronism with a reference clock signal at the remote device. | 2011-10-20 |
20110255616 | RADIO COMMUNICATION SYSTEM, BASE STATION, MOBILE STATION, AND RADIO COMMUNICATION METHOD - A radio communication system includes a reception apparatus and a transmission apparatus. The reception apparatus includes a first wireless communication interface and a first processor. The transmission apparatus includes a second wireless communication interface configured to transmit a wireless signal to the reception apparatus and a second processor configured for generating a plurality of data blocks and a grouped data block obtained by grouping the plurality of data blocks and controlling the second wireless communication interface to transmit the plurality of data blocks through a first radio transmission path, and to transmit the grouped data block through a second radio transmission path better in radio transmission quality than the first radio transmission path. The first processor is configured for controlling the first wireless communication interface to receive the plurality of data blocks transmitted through the first radio transmission path, the grouped data block transmitted through the second radio transmission path. | 2011-10-20 |
20110255617 | RADIO APPARATUS - An in-phase component (I channel) and a quadrature component (Q channel) are interchanged between modulation symbols of an 8PSK system to be assigned to subcarriers of an OFDM system. | 2011-10-20 |
20110255618 | METHOD AND SYSTEM FOR MULTI-USER TRANSMIT OPPORTUNITY FOR MULTI-USER MULTIPLE-INPUT-MULTIPLE-OUTPUT WIRELESS NETWORKS - Wireless communication in a wireless system using a multiple user transmission opportunity is provided. Data blocks at a wireless station are transmitted to multiple wireless receivers over a shared wireless communication medium. The data blocks are organized in order of transmission priority based on access categories. Contention for access to the communication medium during a transmission opportunity period is based on a backoff timer of each access category and the transmission priority. Upon successful contention for a transmission opportunity period, during the transmission opportunity period, a data block of a primary access category is wirelessly transmitted from the wireless station to one or more primary destination wireless receivers. Simultaneously, a data block of a secondary access category is wirelessly transmitted from the wireless station to one or more secondary destination wireless receivers. | 2011-10-20 |
20110255619 | METHOD AND SYSTEM FOR MAPPING UPLINK CONTROL INFORMATION - A base station is provided. The base station includes a transmit path circuitry to transmit an uplink grant to a subscriber station, the uplink grant indicating a first modulation and coding scheme (MCS) value for a first codeword transmission and a second MCS value for a second codeword transmission. The base station also includes a receive path circuitry to receive a multiple-input multiple-output (MIMO) uplink subframe from the subscriber station, the MIMO uplink subframe having a first subset of layers used for the first codeword transmission and a second subset of layers used for the second codeword transmission. Acknowledgement/negative acknowledgement (ACK/NACK) information and rank indication (RI) information are mapped onto both the first subset of layers and the second subset of layers. Channel quality information (CQI) is only mapped onto either the first subset of layers or the second subset of layers. | 2011-10-20 |
20110255620 | ALLOCATING AND RECEIVING TONES FOR A FRAME - A communication device for allocating tones is described that includes a processor and instructions in memory in electronic communication with the processor. The communication device determines whether a bandwidth for signal transmission is 20, 40, 80 or 160 megahertz (MHz). The communication device respectively allocates tones for 20, 40, 80 or 160 MHz as follows: for a very high throughput (VHT) signal A | 2011-10-20 |
20110255621 | SYNCHRONIZED MULTIPOINT-TO-POINT COMMUNICATION USING ORTHOGONAL FREQUENCY DIVISION - A multipoint-to-point, orthogonal frequency division multiplexed (OFDM) communication system is provided. The system includes a plurality of remote units and a host unit that includes a demodulator. Each of the remote units transmits an upstream OFDM signal using a multiple access scheme to the host unit demodulator using at least one of a plurality of orthogonal tones within an OFDM waveform. The host unit receives the upstream OFDM signals from a plurality of the remote units. Portions of upstream OFDM signals from at least two of the remote units arrive at the host unit at the same time. The host unit demodulator demodulates the portions and the upstream signals from the plurality of remote units arrive at the host unit synchronized in time and frequency within the OFDM waveform. | 2011-10-20 |
20110255622 | METHODS AND APPARATUS FOR REDUCTION OF A PEAK TO AVERAGE RATIO FOR AN OFDM TRANSMIT SIGNAL - Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal. In an aspect, a method is provided for reducing a peak to average ratio of a transmit waveform. The method includes obtaining a primary scrambler sequence, generating a secondary scrambler sequence having a length characteristic based on data to be scrambled, and combining the primary and secondary scrambler sequences to produce a PAR reduction sequence. In another aspect, an apparatus is provided for reducing a peak to average ratio of a transmit waveform. The apparatus includes a secondary generator configured to generate a secondary scrambler sequence having a length characteristic based on data to be scrambled, and combining logic configured to combine a primary scrambler sequence and the secondary scrambler sequences to produce a PAR reduction sequence. | 2011-10-20 |
20110255623 | DATA TRANSMISSIONS IN A MOBILE COMMUNICATION SYSTEM EMPLOYING DIVERSITY AND CONSTELLATION REARRANGEMENT OF A 16 QAM SCHEME - The invention relates to methods for transmitting and receiving a data bit stream in a communication system using 16-QAM constellations. Further, an apparatus for performing the methods is provided. To improve the bit-error rate performance of the communication using the 16-QAM constellations the invention suggests the use 16-QAM constellations with specially selected mapping rules together with a special constellation rearrangement for creating different versions of the 16-QAM constellations. Further, the data stream is transmitted according to a diversity scheme employing different versions of the 16-QAM constellations obtained adhering the mapping rules and rearrangement rules defined by the invention. | 2011-10-20 |
20110255624 | MULTIUSER MIMO SYSTEM, RECEIVER, AND TRANSMITTER - Even when respective transmitters use different transmission schemes, signals of the respective transmitters are separated. A receiver that is applied to a multiuser MIMO system in which a plurality of transmitters performs transmission to at least one receiver, includes a MIMO separation part | 2011-10-20 |
20110255625 | CODEBOOK-BASED MULTI-BASE STATION UNITE PRE-CODING METHOD, MOBILE TERMINAL, AND BASE STATION - The present invention provides a novel codebook-based multi-base station unite pre-coding scheme. In this invention, multiple cooperating base stations commonly transmit signals to a mobile terminal. The mobile terminal estimates a channel matrix of a unite MIMO channel from the multiple cooperating base stations, and selects the optimal pre-coding matrix index from the pre-coding matrix codebook based on the unite MIMO channel matrix and feeds it back to the multiple cooperating base stations. Each cooperating base station selects the optimal pre-coding matrix based on the received pre-coding matrix index and uses the corresponding portion of the pre-coding matrix to perform unite pre-coding on the data. Namely, the respective partial pre-coding matrixes as employed by all cooperating base stations together form the pre-coding matrix that is optimal to the mobile terminal, and the pre-coding matrix as used by respective cooperating base stations is a part of the optimal pre-coding matrix. By using the codebook-based multi-base station unite pre-coding scheme according to the present invention, the user performance is improved, the complexity of implementation is low, and the demand on network connecting the base stations is very low. | 2011-10-20 |
20110255626 | METHOD FOR CONFIGURING PHYSICAL LAYER OF LOW FREQUENCY BAND BASED ON WIRELESS MAGNETIC FIELD COMMUNICATION, AND COMPUTER-READABLE RECORDING MEDIUM INCLUDING PROGRAM FOR EXECUTING THE METHOD - The present invention relates to a method for configuring a physical layer of a low frequency band based on wireless magnetic field communication, and a computer-readable recording medium including a program for executing the method. The method supports the proper packet format, coding mode, and modulation mode between a master and a slave in order to enable wireless communication in variable data rate or coding modes depending on a peripheral environment in a low frequency band based on wireless magnetic field communication which is applied to a difficult environment. The method of the invention is characterized by changing the data rate and the coding mode of a payload field within a preset range depending on the peripheral communication environment, wherein the payload field is included in the request and response frames between the master and the slave. The request and response frames can be configured in the same format in the above-mentioned configuration and respectively include a preamble field, a header field, and the payload field. | 2011-10-20 |
20110255627 | METHOD AND APPARATUS FOR CREST FACTOR REDUCTION IN TELECOMMUNICATIONS SYSTEMS - A method and device for reducing Peak-to-Average Power Ratio (PAPR) of a transmitted signal in a wireless telecommunication system utilizing CFR technique, the method including performing peak-windowed clipping of a transmitted signal using at least two cascaded clipping stages and individually configuring parameters for each clipping stage before performing the peak-windowed clipping. | 2011-10-20 |
20110255628 | Method And Apparatus For Interference Mitigation By Removing A Portion Of The Transmit Signal - Elimination of intermodulation interference in a wireless communication system by removing a portion of the spectrum of transmitted signals. According to a received indication of an occurrence of intermodulation interference experienced by a narrowband receiver, mappings are performed between the predetermined narrowband channel frequency on which the narrowband receiver operates and the occupied channel frequencies of at least one broadband transmit signal. Narrowband candidate frequency ranges that linearly combine into frequencies that overlap the predetermined narrowband channel frequency are determined based on the mappings. The narrowband candidate frequency ranges that potentially contribute to the intermodulation interference are then selectively filtered by at least one notch filter until the intermodulation interference is substantially eliminated. | 2011-10-20 |
20110255629 | METHOD OF TRANSMITTING DATA IN MULTIPLE ANTENNA SYSTEM - A method of transmitting data in a wireless communication system comprises receiving feedback data on an uplink data channel, the feedback data comprising a precoding matrix indicator (PMI), wherein the value of the PMI corresponds to an index in a codebook, transmitting a precoding scheme for downlink data on a downlink control channel, wherein the precoding scheme is determined as one of at least two of a transmit diversity irrespective of the received PMI, an acknowledgement indicating precoding according to the received PMI and a new PMI indicating that it is used in precoding downlink data to be transmitted, and transmitting the downlink data on a downlink data channel after applying precoding according to the determined precoding scheme. | 2011-10-20 |
20110255630 | Enhanced MBS for OFDM Systems - A method of performing a multicast broadcast service (MBS) transmission in a multiple-input-multiple-output (MIMO) communication comprising: a. transmitting first data over a first MIMO layer, the first data being lower quality data; and b transmitting second data over a second MIMO layer, the second data being enhancement data for enhancing the lower quality data; wherein, the MBS transmission is to be defined at a subscriber station by the result of enhancing the lower quality data with the enhancement data if the first and second data is successfully received, and the MBS transmission is to be defined at the subscriber station by the lower quality data alone if the first data is successfully received and the second data is not. | 2011-10-20 |
20110255631 | METHODS AND APPARATUS FOR FAST SYNCHRONIZATION USING TAIL BITING CONVOLUTIONAL CODES - For use in a wireless communication network, a transmitter is configured to encode a message field in a control channel message by cyclically shifting the control channel message according to the value of the message field. The transmitter includes a CRC (cyclic redundancy check) encoder configured to encode the control channel message using a cyclic redundancy check. The transmitter may also includes a CIF (carrier indication field) encoder configured to encode a carrier indication value in the control channel message by cyclically shifting the control channel message according to the carrier indication value configured to indicate an intended component carrier of the control channel message. Alternatively, the transmitter may also include a frame timing encoder configured to encode frame timing in the control channel message by cyclically shifting the control channel message according to the frame timing. | 2011-10-20 |
20110255632 | SIGNALING OF MIXTURE COMBINATION SETS - Systems and methods for conveying and determining modulations schemes employed by co-scheduled users are disclosed. In addition, methods and systems for designing signaling schemes that convey such information are also disclosed. In accordance with one method, an index is received and a table of indices in which the received index denotes a plurality of different sets of modulation schemes is referenced. Further, one or more modulation schemes of at least one co-scheduled user is determined based on the referencing. In addition, data signals are received and are processed by utilizing the one or more modulation schemes. | 2011-10-20 |
20110255633 | Digital Transmitter - An equalizer provided in a digital transmitter compensates for attenuation in a signal channel to a digital receiver. The equalizer generates signal levels as a logical function of bit history to emphasize transition signal levels relative to repeated signal levels. The preferred equalizer includes an FIR transition filter using a look-up table. Parallel circuits including FIR filters and digital-to-analog converters provide a high speed equalizer with lower speed circuitry. The equalizer is particularly suited to in-cabinet and local area network transmissions where feedback circuitry facilitates adaptive training of the equalizer. | 2011-10-20 |
20110255634 | PULSE WIRELESS COMMUNICATION DEVICE - To provide a microwave/milliwave UWB pulse wireless communication device that enables realization of structural simplification, high performance, compact integration, easy design, low power consumption, and low cost. A radiation type oscillator is configured by a radiation type oscillator substrate S | 2011-10-20 |
20110255635 | DATA TRANSMISSION DEVICE AND METHOD IN A WIRELESS COMMUNICATIONS SYSTEM - The present invention provides a data transmission device and method in a wireless communication system. The device comprises a processor which is connected with the M antennas and which is formed so as to generate data to be transmitted through the M antennas, on the basis of a precoding matrix; the precoding matrix is generated based on a plurality of matrices; and a first matrix, which is one matrix among the plurality of matrices, is selected from within a codebook for N antennas (where N2011-10-20 | |
20110255636 | DISTORTION COMPENSATION CIRCUIT, TRANSMITTING APPARATUS AND DISTORTION COMPENSATING METHOD - A distortion compensation circuit for compensating for the distortion characteristics of an amplifier, includes a distortion compensating coefficient calculating element and a distortion compensating operation element. The distortion compensating coefficient calculating element calculates a distortion compensating coefficient to be used for compensation of the distortion characteristics by comparing an input signal with the output signal amplified by the amplifier. The distortion compensating operation element performs a distortion compensating operation on the input signal, using a variably set bit format and the distortion compensating coefficient calculated by the distortion compensating coefficient calculating element. | 2011-10-20 |
20110255637 | OFDM TRANSMISSION SIGNAL GENERATION APPARATUS AND METHOD, AND OFDM RECEPTION DATA GENERATION APPARATUS AND METHOD - A MIMO-OFDM transmission and reception apparatus is provided which allows high accuracy estimation of frequency offset, high accuracy estimation of a transmission path fluctuation and high accuracy synchronization/signal detection. A mapping section generates a plurality of OFDM signals. In these OFDM signals, some pilot carriers are assigned to the same carrier position and orthogonal sequences are assigned to the same time slot in the same carrier position. | 2011-10-20 |