22nd week of 2014 patent applcation highlights part 30 |
Patent application number | Title | Published |
20140146826 | TELECOMMUNICATIONS SYSTEM AND METHOD - In a telecommunications network including a core network component and first and second telecommunications devices, with the second telecommunications device being associated with a SIM which is not directly routable in the telecommunications network in regard to communications with the first telecommunication device, a method of transmitting a communication between the first device and the second device including: the core network component receiving a communication from or for the second device via a data bearer; and configuring the core network component, to encapsulate the received communication and forward the encapsulated communication to a management server external to the telecommunications network so as to obtain appropriate routing data and/or routing authorisation for the communication. | 2014-05-29 |
20140146827 | NETWORK PROCESSOR UNIT AND A METHOD FOR A NETWORK PROCESSOR UNIT - A method of and a network processor unit for processing of packets in a network, the network processor comprising: communication interface configured to receive and transmit packets; at least one processing means for processing packets or parts thereof; an embedded switch configured to switch packets between the communication interface and the processing means; and wherein the embedded switch is configured to analyze a received packet and to determine whether the packet should be dropped or not; if the packet should not be dropped, the switch is configured to store the received packet, to send a first part of the packet to the processing means for processing thereof, to receive the processed first part of the packet from the processing means, and to transmit the processed first part of the packet. | 2014-05-29 |
20140146828 | LDP IGP SYNCHRONIZATION FOR BROADCAST NETWORKS - A network element that has a broadcast interface to a broadcast network becoming operational determines whether at least one alternate path exists to the broadcast network. The broadcast interface is to carry traffic on a label switched path. If an alternate path exists, the broadcast interface will not be advertised to the broadcast network until label distribution protocol (LDP) is operational with all neighbors on the broadcast interface. | 2014-05-29 |
20140146829 | FORWARDING CELLS OF PARTITIONED DATA THROUGH A THREE-STAGE CLOS-NETWORK PACKET SWITCH WITH MEMORY AT EACH STAGE - Examples are disclosed for forwarding cells of partitioned data through a three-stage memory-memory-memory (MMM) input-queued Clos-network (IQC) packet switch. In some examples, each module of the three-stage MMM IQC packet switch includes a virtual queue and a manager that are configured in cooperation with one another to forward a cell from among cells of partitioned data through at least a portion of the switch. The cells of partitioned data may have been partitioned and stored at an input port for the switch and have a destination of an output port for the switch. | 2014-05-29 |
20140146830 | TRANSMISSION CIRCUIT, RECEPTION CIRCUIT, TRANSCEIVER SYSTEM, AND METHOD FOR CONTROLLING THE TRANSCEIVER SYSTEM - A transmission circuit includes a buffer that stores a packet transmitted to a reception circuit, a processing unit that reads a retransmission target packet from the buffer, when a retransmission request including processing pattern information that specifies processing to a packet is received from the reception circuit, and that performs the processing specified in the processing pattern information on the retransmission target packet, and an output unit that outputs a processed retransmission target packet to the reception circuit. | 2014-05-29 |
20140146831 | Queue Scheduling Method and Apparatus - Embodiments of the present invention disclose a queue scheduling method and apparatus, which can not only implement scheduling of a large number of queues, but also ensure that the queues uniformly send service data. The method includes: determining whether service data exists in each to-be-scheduled data queue and determining whether the to-be-scheduled data queues are allowed to send data; if it is determined that the service data exists in the to-be-scheduled data queues and the to-be-scheduled data queues are allowed to send data, placing queue marks of the to-be-scheduled data queues into a mark queue; scheduling queue marks of the to-be-scheduled data queues from the mark queue in sequence, scheduling the to-be-scheduled data queues corresponding to the queue marks, and enabling the to-be-scheduled data queues corresponding to the queue marks to send service data not exceeding predetermined data amounts. | 2014-05-29 |
20140146832 | NETWORK PROXYING TECHNOLOGY - A network device including a first network interface adapted to communicate with at least one further network device within a sub-network, and a proxy module adapted to provide control and information retrieval functionality relating to the at least one further network device to network devices outside the sub-network. | 2014-05-29 |
20140146833 | PMA-SIZE TRAINING FRAME FOR 100GBASE-KP4 - Methods, apparatus and systems for implementing Physical Media Attachment (PMA) alignment and rapid transition from a link training mode to a data mode for next-generation high-speed Ethernet links including a 100 Gbps Ethernet link. Training frames are transmitted between first and second Ethernet interfaces on opposing ends of the link in a pair-wise manner, with a first training frame being sent from a first Ethernet interface and a second training frame being returned from the second Ethernet interface. The training frames have a length that is the same as the length of Physical Media Attachment (PMA) frames, and the returned training frames include receiver readiness status indicia identifying a readiness status of a local receiver port, and countdown data. The readiness status indicia, and countdown data are employed to facilitate a rapid transition from the link training mode to the data mode. | 2014-05-29 |
20140146834 | METHOD AND SYSTEM FOR DYNAMICALLY CHANGING UPPER BOUND ON DATA PACKET SIZE IN WIRELESS COMMUNICATION NETWORKS - The present invention provides a method and system for dynamically changing upper bound on size of data packets. In one embodiment, a transmitting device determines a need to change existing negotiated maximum size for an active connection when size of data packets for an application is switched, a new application is mapped to the active connection or Maximum Transmission Unit (MTU) of broadband wireless network is changed. Then, the transmitting device sends a request message indicating a new negotiated maximum size for changing the existing negotiated maximum size to the receiving device. The receiving device sends a response message confirming change to the new negotiated maximum size to the transmitting device. Accordingly, the transmitting device and the receiving device uses the new negotiated maximum size for building data packets and decoding the received data packets respectively based on a predefined parameter (e.g., sequence number/action time) indicated in the request/response message. | 2014-05-29 |
20140146835 | 64B/66B CODEC FOR ETHERNET APPLICATIONS - Aspects of the disclosure provide a codec that transforms input data into a codeword. The codeword includes a header portion and a payload portion. The codec modifies the payload portion of the codeword based on a type control block that is included in the payload portion of the codeword. Specifically, the codec modifies a control block in the payload portion to create a reference block, which provisions for data blocks to be inserted in the codeword subsequent to the reference block. Thus, by modifying the payload portion of the codeword, the codec eliminates any wasted data bytes thereby achieving optimal usage of the payload bandwidth. | 2014-05-29 |
20140146836 | METHOD FOR VIDEO STREAMING AND AN ELECTRONIC DEVICE THEREOF - A video transmitting method for video streaming is provided. The method includes generating a video packet including one video frame, transmitting at least one transport packet generated using the video packet, and transmitting a dummy transport packet for indicating a boundary of the video packet if a size of the video frame exceeds a threshold. | 2014-05-29 |
20140146837 | SEMICONDUCTOR LASER - A semiconductor laser has an optical cavity comprising and active layer disposed between an n-side barrier layer and a p-side barrier layer. The active layer comprises alternating layers of a first and second material, and the n-side barrier layer and p-side barrier layer each comprise alternating layers of the first material and a third material. The materials are selected such that the layers of the second and third materials form quantum wells between the layers of the first material. A band gap Eg of the second material is arranged such that a proportion of electrons and holes that recombine across the band gap Eg recombine to emit photons at the lasing wavelength, the proportion decreasing with increasing temperature of the optical cavity. A band gap Ec of the third material is arranged such that a ratio of electrons and holes that recombine across the band gap Eg of the second material to electrons and holes that recombine across the band gap Ec of the third material increases with increasing temperature of the optical cavity. Over a range of temperatures at which the semiconductor laser is intended to operate, the increasing ratio compensates for the decreasing proportion so as to reduce change with temperature of the optical cavity in the rate at which electrons and holes recombine across the band gap Eg of the second material to emit photons at the lasing wavelength. | 2014-05-29 |
20140146838 | Resonant Cavity Conditioning For Improved Nonlinear Crystal Performance - Systems and methods to improve the performance of nonlinear crystals in a resonant cavity are presented. A humidified purge gas is supplied to a resonant cavity of a laser based illumination source that includes a nonlinear crystal. A small amount of water vapor is added to a clean, dry purge gas to prevent excessive drying of the nonlinear crystal during storage or operation. In some embodiments, a humidity injection system includes at least two parallel flow paths. One flow path includes a humidity injector and another does not include humidity injection. The amount of water vapor added to the purge gas flow is determined at least in part by the relative flow rate between the parallel flow paths. In some embodiments, the amount of water vapor added to the purge gas flow is regulated based on a measurement of humidity in the resonant cavity. | 2014-05-29 |
20140146839 | TUNING RARE EARTH ION EMISSION WAVELENGTH IN PHOSPHATE BASED GLASSES USING CERIUM OXIDE - The invention relates to a Nd-doped (and/or Yb-doped and/or Er-doped) phosphate laser glass having a peak emission wavelength that is shorter than 1054 nm. Cerium oxide (CeO | 2014-05-29 |
20140146840 | BROADENING THE RARE EARTH ION EMISSION BANDWIDTH, INCREASING EMISSION CROSS SECTION, AND OR SHIFTING PEAK EMISSION WAVELENGTH IN ND DOPED ALUMINATE OR SILICATE GLASSES - The invention relates to a Nd-doped, aluminate-based or silicate-based, laser glass having a peak emission wavelength that is longer than 1059.7 nm, an emission cross section (σ | 2014-05-29 |
20140146841 | ULTRA-BROAD BANDWIDTH LASER GLASSES FOR SHORT-PULSE AND HIGH PEAK POWER LASERS - The invention relates to glasses for use in solid laser applications, particularly short-pulsed, high peak power laser applications. In particular, the invention relates to a method for broadening the emission bandwidth of rare earth ions used as lasing ions in solid laser glass mediums, especially phosphate-based glass compositions, using Nd and Yb as co-dopants. The invention further relates to a laser system using a Nd-doped and Yb-doped phosphate laser glass, and a method of generating a laser beam pulse using such a laser system. | 2014-05-29 |
20140146842 | Semiconductor Stripe Laser - A semiconductor stripe laser has a first semiconductor region having a first conductivity type and a second semiconductor region having a different, second conductivity type. An active zone for generating laser radiation is located between the semiconductor regions. A stripe waveguide is formed in the second semiconductor region and is arranged to guide waves in a one-dimensional manner and is arranged for a current density of at least 0.5 kA/cm | 2014-05-29 |
20140146843 | PHOTOELECTRIC CONVERTING MODULE - A photoelectric converting module includes a circuit board, a locating frame fixed on the circuit board, and a photoelectric coupling element. The photoelectric coupling element includes a bottom surface. The bottom surface defines a groove. A shape of the groove coincides with that of the locating frame and a size of the groove is slightly greater than that of the locating frame. The groove receives the locating frame. | 2014-05-29 |
20140146844 | Multi-Wavelength Semiconductor Laser Device - A multi-wavelength semiconductor laser device includes a block having a V-shaped groove with two side faces extending in a predetermined direction; and laser diodes with different light emission wavelengths mounted on the side faces of the groove in the block so that their laser beams are emitted in the predetermined direction. | 2014-05-29 |
20140146845 | THERMALLY DETERMINING FLOW AND/OR HEAT LOAD DISTRIBUTION IN PARALLEL PATHS - A method including obtaining calibration data for at least one sub-component in a heat transfer assembly, wherein the calibration data comprises at least one indication of coolant flow rate through the sub-component for a given surface temperature delta of the sub-component and a given heat load into said sub-component, determining a measured heat load into the sub-component, determining a measured surface temperature delta of the sub-component, and determining a coolant flow distribution in a first flow path comprising the sub-component from the calibration data according to the measured heat load and the measured surface temperature delta of the sub-component. | 2014-05-29 |
20140146846 | DETECTING SYSTEM AND METHOD FOR DETECTING FAN FAILURE - A detecting method for detecting fan failure in an electronic device is provided. The electronic device includes at least one fan and an air inlet structure. A first sensor is mounted on a central processing unit (CPU) and senses a first temperature value. A second sensor is mounted on the air inlet structure and senses a second temperature value. The detecting method includes steps of acquiring the first temperature value and the second temperature value; calculating a power value of the CPU; calculating a thermal resistance value based on the acquired first temperature value, the acquired second temperature value and the power value of the CPU; determining whether the calculated thermal resistance value is more than a predetermined thermal resistance value; and generating fan failure information when the calculated thermal resistance value is more than a predetermined thermal resistance value. | 2014-05-29 |
20140146847 | THERMO-ANALYTICAL INSTRUMENT - A thermo-analytical instrument, especially a differential scanning calorimeter has a sample position ( | 2014-05-29 |
20140146848 | Temperature Sensor for Hygienic Applications with Clampable Process Connector - A conical flange of a temperature sensor for hygienic applications as a deep drawn part with a disk-shaped lower part | 2014-05-29 |
20140146849 | DEVICE FOR POSITIONING A TEMPERATURE SENSOR - A device for positioning a temperature sensor includes a support structure and a lower platen supported by the support structure. The lower platen includes an upper surface, and at least a portion of the upper surface is located in a horizontal plane. The device further includes a sensor guide structure that includes an aperture having a centerline axis. The aperture is oriented horizontally and is configured to receive a temperature sensor. The sensor guide structure is vertically movable relative to the upper surface of the lower platen in proportion to a thickness of a food product supported on the upper surface of the lower platen, as measured in a direction perpendicular to the horizontal plane. | 2014-05-29 |
20140146850 | TEMPERATURE DISTRIBUTION MEASUREMENT APPARATUS AND TEMPERATURE DISTRIBUTION MEASUREMENT METHOD - A temperature distribution measurement apparatus includes a laser light source optically connected to an optical fiber, a photodetector configured to detect light backscattered in the optical fiber, and a temperature distribution measurement unit configured to obtain a true measured temperature distribution by performing correction calculation using a transfer function on a temporary measured temperature distribution obtained based on an output from the photodetector. The temperature distribution measurement unit stores therein data on a transfer function set for each entire length of the optical fiber and for each longitudinal position in the optical fiber. Then, when the length of the optical fiber is changed, the temperature distribution measurement unit changes the transfer function to be used in the correction calculation by using the data on the transfer function. | 2014-05-29 |
20140146851 | ELECTRONIC CONTACT THERMOMETER - Present invention provides an electronic contact thermometer with shorter reactive time and easy to use, which comprises a case; a circuit board which is installed in said case; a display; a switch; a power supply device; and a sensing part which is installed in one end of said case, electrical connected with said circuit board; said display and switch are disposed on one side of said case; said sensing part comprises a positioning nugget which is installed in the same end of said case that the sensing part is installed in; a temperature sensing chip; and 2 conducting lines which are electrical connected to the temperature sensing chip; said metallic contact part is a round cap with flat contacting surface, which comprises few positioning sticks on the surrounding wall, which connect to said positioning rods for making it protruding from but not contact to said case; | 2014-05-29 |
20140146852 | SEMICONDUCTOR DEVICE - A semiconductor device includes a control voltage generator to generate a control voltage according to a temperature section signal; and a temperature voltage output block to output a temperature voltage varying with a temperature according to the control voltage and the temperature section signal. | 2014-05-29 |
20140146853 | Device for Emulating Temperature of a Composite Structure Through a Thermal Cure Cycle - A temperature emulator may include a stack assembly having a pair of end plates positioned at an uppermost and lowermost location of the stack assembly, a plurality of heat sink plates disposed between the pair of end plates, each of the heat sink plates having a plurality of heat sink cutouts, a plurality of shim plates separating adjacent pairs of the end plates and the heat sink plates, each of the shim plates having a shim cutout, an open cavity formed by a plurality of adjacent heat sink cutouts and shim cutouts, thermal insulation disposed within the cavity, and at least one temperature sensor coupled to at least one of the plurality of heat sink plates. | 2014-05-29 |
20140146854 | TEMPERATURE CALIBRATION AND CONTROL FOR SEMICONDUCTOR REACTORS - Non-contact and non-invasive temperature measurement structures and methods for thermal processing systems which neither damage nor contaminate the thermal processing environment are provided. | 2014-05-29 |
20140146855 | Device for Emulating Temperature of an Exothermic Composite Structure Through a Thermal Cure Cycle - A temperature emulator may include a stacked assembly including a pair of end plates positioned at an uppermost and lowermost location of the stacked assembly, a plurality of heat sink plates positioned between the pair of end plates, a plurality of shim plates positioned between adjacent pairs of heat sink plates, and an exothermic charge assembly positioned between at least one pair of heat sink plates, the exothermic charge assembly including an exotherm charge configured to react exothermally in response to a thermal cure cycle. | 2014-05-29 |
20140146856 | THIN FILMS HAVING LARGE TEMPERATURE COEFFICIENT OF RESISTANCE AND METHODS OF FABRICATING SAME - An apparatus comprises a head transducer and a resistive temperature sensor provided on the head transducer. The resistive temperature sensor comprises a first layer comprising a conductive material and having a temperature coefficient of resistance (TCR) and a second layer comprising at least one of a specular layer and a seed layer. A method is disclosed to fabricate such sensor with a laminated thin film structure to achieve a large TCR. The thicknesses of various layers in the laminated thin film are in the range of few to a few tens of nanometers. The combinations of the deliberately optimized multilayer thin film structures and the fabrication of such films at the elevated temperatures are disclosed to obtain the large TCR. | 2014-05-29 |
20140146857 | Method for Setting Frequency Channels in a Multi-Hop Wireless Mesh Network - A method for setting frequency channels in a multi-hop wireless mesh network including a plurality of nodes. Each node hops on frequency channels, with a hop period, according to a frequency channels hopping sequence. All data packets transmitted by the nodes have a duration strictly longer than the hop period. When a given node of the plurality of nodes is in a first transmit mode in order to transmit a data packet, it carries out steps of: selecting a transmit frequency channel as a function of the frequency channels hopping sequence; and transmitting the data packet using, for the entire duration of the data packet, the selected transmit frequency channel. | 2014-05-29 |
20140146858 | PROCESSING SIGNALS IN A WIRELESS COMMUNICATIONS ENVIRONMENT - One aspect provides a method of processing a signal transmitted over a channel in a wireless communication system. In one embodiment, the method comprises receiving at a receiver the signal transmitted over the channel, estimating at intervals at least one parameter of a time varying communication environment of the system, monitoring at least one processor-related criterion of a processor at the receiver, and selecting a signal processing function from a plurality of signal processing functions implementable by the processor. The selecting of the signal processing function is based on both the at least one parameter and the at least one processor-related criterion. Each signal processing function comprises a plurality of code blocks which process the received signal. Each code block of the plurality of code blocks comprises a sequence of instructions for execution by on a processor platform of the processor. | 2014-05-29 |
20140146859 | EFFICIENT FREQUENCY ESTIMATION - Methods are presented herein for estimating at least a frequency (offset) for a block of received symbols using two or more estimation stages. These methods may allow reducing the computational complexity of a frequency estimator while maintaining large frequency offset coverage and high frequency estimation accuracy. Also are presented satellite communication systems employing any of burst transmission and continuous transmission. Said systems may be configured to estimate at least a frequency (offset) for any of a received burst or a block of received symbols using two or more estimation stages. In some embodiments, said burst or said block of symbols may include a Unique Word located at or about the center of the block of symbols. | 2014-05-29 |
20140146860 | TRANSCEIVER WITH SHORT-CIRCUIT DETECTION AND PROTECTION - A USB transceiver has transmitter circuitry, receiver circuitry, short-circuit detection circuitry, and short-circuit protection circuitry. The transmitter circuitry transmits a differential pair of outgoing data signals to a cable connected to the transceiver, and the receiver circuitry receives the differential pair of outgoing data signals via bi-directional input-output pins. The short-circuit detection circuitry analyzes each of the outgoing differential data signals to detect a short circuit in the pair of outgoing data signals, and the short-circuit protection circuitry protects the transmitter circuitry upon detection of a short circuit. | 2014-05-29 |
20140146861 | SERIAL DIGITAL INTERFACE BETWEEN AN RF TRANSCEIVER AND A BASEBAND CHIP - One embodiment of the present invention provides a device for interfacing between a baseband controller and an RF integrated circuit (IC) chip having a modulator and a demodulator. The device includes an analog-to-digital converter (ADC) coupled to the demodulator located on the RF IC chip. The ADC is configured to receive demodulated analog signals from the demodulator. The device further includes a serializer configured to generate a serial data frame based on the ADC's output, a first serial data port configured to send the serial data frame to the baseband controller, and a control module coupled to the baseband controller. | 2014-05-29 |
20140146862 | Process for Performing a QR Decomposition of a Channel Matrix in a MIMO Wireless Communication System, and Receiver for Doing the Same - A process for performing a QR Decomposition of a channel matrix of a wireless communication channel system, said process involving the steps of: performing a full QR Decomposition of one channel matrix for the purpose of deriving a first QR representation of the channel; performing a second iterative QR Decomposition of an adjacent channel matrix, said second iterative QR Decomposition using the results of said first QR representation as well as the difference of the two adjacent channel matrices ΔH. More particularly, the process is characterized in that the iterative QR Decomposition is performed in response to the detection of a high level of workload of the processor. | 2014-05-29 |
20140146863 | APPARATUS AND METHOD FOR BEAMFORMING GAIN DIFFERENCE COMPENSATION ACCORDING TO CHANGE OF TRANSMITTING AND RECEIVING BEAM PATTERN IN BEAMFORMING BASED WIRELESS COMMUNICATION SYSTEM - A method of operating a Mobile Station (MS) in a wireless communication system using beamforming includes receiving a reference signal over a plurality of downlink transmit (Tx) beams, measuring channel quality information of the received reference signal, and generating effective channel quality information by compensating for beamforming gain compensation information according to the channel quality information. | 2014-05-29 |
20140146864 | METHOD FOR DETECTING LEAKAGE IN DIGITALLY MODULATED SYSTEMS - In a method for detecting leakage in a digital cable system, at least one first signal is inserted on the cable system. The at least one first signal has an amplitude multiple tens of dB below the digital channel power of the digital channels carried on the cable system. A second signal containing the first signal is received. The second signal is converted to an intermediate frequency (IF) signal. The IF signal is digitized and samples of the digitized IF signal are obtained. Digitized samples of a third signal at the nominal frequency of the first signal at maximum amplitude converted to the IF are provided. The digitized IF signal and the digitized samples of a third signal at the nominal frequency of the first signal at maximum amplitude converted to the IF are correlated. The presence of the inserted first signal is detected based upon the result of the correlation. In another method, a pair of first signals are inserted on the cable system. The pair of first signals are spaced apart a fixed frequency and with amplitudes multiple tens of dB below the digital channel power of the digital channels carried on the cable system. A second signal containing the first signal is received and converted to an intermediate frequency (IF) signal. The IF signal is digitized, samples of the digitized IF signal are obtained, and a large scale Fast Fourier Transform (FFT) is applied to the samples to generate an FFT output. The FFT output is examined for generally equally sized signals separated from each other by the fixed frequency in the FFT output. If generally equally sized signals separated from each other by the fixed frequency are detected in the FFT output, a decision is made that the second signal represents detected leakage from the digital cable system. | 2014-05-29 |
20140146865 | WIRED CONNECTOR AND ANTENNA - An antenna can be in a computing device. A connector can be in the computing device and adjacent to the antenna for a wired connection. In one implementation the antenna is connector to a controller to monitor the antenna for wireless signal degradation and compensate for the wireless signal degradation. | 2014-05-29 |
20140146866 | SYSTEM AND APPARATUS FOR LOCATING FAULTS IN A CABLE NETWORK - A range to fault (RTF) module ( | 2014-05-29 |
20140146867 | Receiver with Parallel Decision Feedback Equalizers - Described embodiments apply equalization to an input signal to a receiver such as a serial-deserializer. The receiver has an analog-to-digital converter (ADC), an M-way parallelizer, N serial buffers, N prefix buffers, and N decision feedback equalizers (DFEs), where M and N are greater than one. The ADC digitizes the input signal to form digitized symbols. The parallelizer assembles the digitized symbols into parallel sets of M digitized symbols. Each serial buffer has slots of M locations per slot and stores one set of M digitized symbols in one of the slots. The DFEs are responsive to common tap weight coefficients and produce parallel sets of M recovered data bits. Each DFE is first trained using sets of past digitized symbols loaded into a corresponding one of the prefix buffers and then processes digitized symbols stored in a corresponding one of the serial buffers. | 2014-05-29 |
20140146868 | DECISION FEEDBACK EQUALIZERS AND OPERATING METHODS THEREOF - A decision feedback equalizer (DFE) includes a sampler for receiving a first input signal and comparing an amplitude of the first input signal with a first predetermined voltage level and a second predetermined voltage level. The DFE includes a DFE logic circuit for receiving at least one first sign signal based on comparison results, and for selectively updating a tap coefficient based on the at least one first sign signal. The DFE logic circuit is configured to update the tap coefficient when the at least one first sign signal indicates the amplitude of the first input signal is not between the first predetermined voltage level and the second predetermined voltage level. The DFE logic circuit is configured to maintain the tap coefficient when the at least one first sign signal indicates the amplitude of the first input signal is between the first and the second predetermined voltage levels. | 2014-05-29 |
20140146869 | SUB PICTURE PARALLEL TRANSCODING - Disclosed are various embodiments directed to transcoding a video file bit stream in parallel at a sub picture latency and faster than real time rate. A processed raw pixel data stream is written to a memory, the processed raw pixel data stream being expressed as a sequence of pictures. Each picture is divided into a first sub picture partition and a second sub picture partition. A first encoder encodes each first sub picture partition, the first encoder being communicatively coupled to the memory, and a second encoder encodes each second sub picture partition, the second encoder being communicatively coupled to the memory. | 2014-05-29 |
20140146870 | METHOD AND SYSTEM FOR MEDIA FILE COMPRESSION - The present invention discloses a method for media file compression, which includes: extracting the encoding parameters from an input media file, separating and decoding the audio and video stream from the input media file, and extracting an original audio stream and an original video stream; computing the transcoding parameters required for compression according to the encoding parameters; encoding the original audio stream to output a new compressed audio stream, and encoding the original video stream to output a new compressed video stream according to the transcoding parameters; synthesizing the new compressed audio stream and the new compressed video stream to create a new media file. The present invention also provides a system for media file compression. By means of the method and system of the present invention, users can realize simple and rapid compression for media files of various formats without understanding media expertise, and the storage space can be saved, so that it is convenient to carry, transfer and share the media files. | 2014-05-29 |
20140146871 | METHOD AND SYSTEM FOR MEDIA FILE COMPRESSION - The present invention discloses a method for media file compression, which includes: extracting the encoding parameters from an input media file, separating and decoding the audio and video stream from the input media file, and extracting an original audio stream and an original video stream; computing the transcoding parameters required for compression according to the encoding parameters; encoding the original audio stream to output a new compressed audio stream, and encoding the original video stream to output a new compressed video stream according to the transcoding parameters; synthesizing the new compressed audio stream and the new compressed video stream to create a new media file. The present invention also provides a system for media file compression. By means of the method and system of the present invention, users can realize simple and rapid compression for media files of various formats without understanding media expertise, and the storage space can be saved, so that it is convenient to carry, transfer and share the media files. | 2014-05-29 |
20140146872 | System And Method For Randomly Accessing Compressed Data From Memory - A method facilitating random access to segments of compressed data stored in memory includes the steps of receiving a series of data segments, encoding the series of data segments into a series of compressed data segments of variable segment sizes, storing the series of compressed data segments in a memory, and generating a locator for each of the compressed data segments. Each locator is indicative of the location of an associated compressed data segment in the memory. A method for randomly accessing a segment of compressed data includes receiving a request for a compressed data segment, retrieving a locator associated with the requested segment, using the retrieved locator to locate the requested segment in the memory, and retrieving the requested segment from the memory. Thus, compressed data segments can be decoded in a different order than the order they were encoded in. Systems for implementing the methods are also disclosed. | 2014-05-29 |
20140146873 | IMAGE PROCESSING APPARATUS AND METHOD - A method and apparatus for applying a tile size adaptively based on a size of a coding unit. An image processing apparatus may detect a size of a largest coding unit (LCU) used in encoding of a video from a header of a bitstream, may determine a tile size adaptively based on the detected size of the LCU, and may decode the bitstream in units of the LCU based on the determined tile size. | 2014-05-29 |
20140146874 | DATA PROCESSING APPARATUS WITH ADAPTIVE COMPRESSION/DE-COMPRESSION ALGORITHM SELECTION FOR DATA COMMUNICATION OVER CAMERA INTERFACE AND RELATED DATA PROCESSING METHOD - A data processing apparatus has a compressor and an output interface. The compressor generates an output multimedia data according to an input multimedia data. The output interface packs the output multimedia data into an output bitstream, and outputs the output bitstream to another data processing apparatus via a camera interface. The camera interface is a camera serial interface (CSI) standardized by a Mobile Industry Processor Interface (MIPI). In addition, the compressor adaptively adjusts a compression algorithm according to context characteristics in the input multimedia data, power supply status, operational status of a storage device, image capture characteristic, configuration of the another data processing apparatus, and/or compression algorithm supported by the another data processing apparatus. Further, the another data processing apparatus adaptively adjusts a de-compression algorithm according to a compression algorithm supported by the compressor. | 2014-05-29 |
20140146875 | LOOP FILTERING ACROSS CONSTRAINED INTRA BLOCK BOUNDARIES IN VIDEO CODING - This disclosure describes techniques for coding video data. In particular, this disclosure describes techniques for loop filtering for video coding. The techniques of this disclosure may apply to loop filtering and/or partial loop filtering across block boundaries in scalable video coding processes. Loop filtering may include, for example, one or more of adaptive loop filtering (ALF), sample adaptive offset (SAO) filtering, and deblocking filtering. | 2014-05-29 |
20140146876 | MOVING PICTURE CODING APPARATUS, MOVING PICTURE CODING METHOD, MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING APPARATUS - An inter mode coding unit codes the information regarding the motion information of either one of a merge mode and a motion vector difference mode. A block size information coding unit codes the shape of the block on which the motion compensation prediction is performed. An evaluation inter mode setting unit sets the shape of the block, on which the motion compensation prediction is performed, then selects at least one of the merge mode and the motion vector difference mode, according to the shape thereof set. An inter mode determining unit determines an inter mode of the information regarding the motion information to be coded by the inter mode coding unit in the selectable inter mode. | 2014-05-29 |
20140146877 | METHOD FOR DYNAMICALLY ADAPTING VIDEO IMAGE PARAMETERS FOR FACILITATING SUBSEQUENT APPLICATIONS - A method for adapting an input video stream (V) for facilitating a subsequent application to be performed upon receipt of the adapted video stream by a receiver comprises the steps of determining control parameters (AVP) from quality requirement parameters (QR), bandwidth limitation parameters (BW) and spatial parameters (x, y), a step of performing a spatial-temporal adaptation of said input video stream (V) in accordance with said control parameters (AVP) to thereby generate said adapted video stream (AV) for provision to said receiver. | 2014-05-29 |
20140146878 | METHOD AND APPARATUS FOR ENCODING VIDEO IN CONSIDERATION OF SCANNING ORDER OF CODING UNITS HAVING HIERARCHICAL STRUCTURE, AND METHOD AND APPARATUS FOR DECODING VIDEO IN CONSIDERATION OF SCANNING ORDER OF CODING UNITS HAVING HIERARCHICAL STRUCTURE - A method and apparatus for decoding a video and a method and apparatus for encoding a video are provided. The method for decoding the video includes: receiving and parsing a bitstream of an encoded video; extracting, from the bitstream, encoded image data of a current picture of the encoded video assigned to a maximum coding unit, and information about a coded depth and an encoding mode according to the maximum coding unit; and decoding the encoded image data for the maximum coding unit based on the information about the coded depth and the encoding mode for the maximum coding unit, in consideration of a raster scanning order for the maximum coding unit and a zigzag scanning order for coding units of the maximum coding unit according to depths. | 2014-05-29 |
20140146879 | METHOD AND APPARATUS FOR ENCODING VIDEO IN CONSIDERATION OF SCANNING ORDER OF CODING UNITS HAVING HIERARCHICAL STRUCTURE, AND METHOD AND APPARATUS FOR DECODING VIDEO IN CONSIDERATION OF SCANNING ORDER OF CODING UNITS HAVING HIERARCHICAL STRUCTURE - A method and apparatus for decoding a video and a method and apparatus for encoding a video are provided. The method for decoding the video includes: receiving and parsing a bitstream of an encoded video; extracting, from the bitstream, encoded image data of a current picture of the encoded video assigned to a maximum coding unit, and information about a coded depth and an encoding mode according to the maximum coding unit; and decoding the encoded image data for the maximum coding unit based on the information about the coded depth and the encoding mode for the maximum coding unit, in consideration of a raster scanning order for the maximum coding unit and a zigzag scanning order for coding units of the maximum coding unit according to depths. | 2014-05-29 |
20140146880 | METHOD AND APPARATUS FOR ENCODING VIDEO IN CONSIDERATION OF SCANNING ORDER OF CODING UNITS HAVING HIERARCHICAL STRUCTURE, AND METHOD AND APPARATUS FOR DECODING VIDEO IN CONSIDERATION OF SCANNING ORDER OF CODING UNITS HAVING HIERARCHICAL STRUCTURE - A method and apparatus for decoding a video and a method and apparatus for encoding a video are provided. The method for decoding the video includes: receiving and parsing a bitstream of an encoded video; extracting, from the bitstream, encoded image data of a current picture of the encoded video assigned to a maximum coding unit, and information about a coded depth and an encoding mode according to the maximum coding unit; and decoding the encoded image data for the maximum coding unit based on the information about the coded depth and the encoding mode for the maximum coding unit, in consideration of a raster scanning order for the maximum coding unit and a zigzag scanning order for coding units of the maximum coding unit according to depths. | 2014-05-29 |
20140146881 | METHOD AND APPARATUS FOR ESTIMATING A QUANTIZATION TABLE FOR A VIDEO IMAGE - A method of estimating a quantization table for an image block compressed in image processing is provided. The method including performing a first quantization using a table dictionary that includes a number of candidate quantization tables for the compressed image block; performing edge-related filtering on the compressed image block and performing a second quantization using the table dictionary for the filtered compressed image block; and estimating a quantization table for the compressed image block based on energy costs of the first-quantized image block and the second-quantized image block. | 2014-05-29 |
20140146882 | Method and System for Compression of a Real-Time Surveillance Signal - An embodiment provides a method for compression of a real-time surveillance signal. This method includes receiving a signal from a monitoring device and analyzing the signal to be monitored to compute spectral content of the signal. This method also includes computing the information content of the signal and determining a count of a number of coefficients to be used to monitor the signal. This method includes deploying a strategy for computing a plurality of coefficients based on the spectral content of the signal and the count of the number of coefficients to be used for monitoring the signal. This method further includes monitoring the signal and resetting the system in the case of above-threshold changes in a selected portion of the plurality of coefficients. | 2014-05-29 |
20140146883 | BANDWIDTH SAVING ARCHITECTURE FOR SCALABLE VIDEO CODING SPATIAL MODE - A system and method for scalable video coding that includes base layer having lower resolution encoding, enhanced layer having higher resolution encoding and the data transferring between two layers. The system and method provides several methods to reduce bandwidth of inter-layer transfers while at the same time reducing memory requirements. Due to less memory access, the system clock frequency can be lowered so that system power consumption is lowered as well. The system avoids having prediction data from base layer to enhanced layer to be up-sampled for matching resolution in the enhanced layer as transferring up-sampled data can impose a big burden on memory bandwidth. | 2014-05-29 |
20140146884 | FAST PREDICTION MODE DETERMINATION METHOD IN VIDEO ENCODER BASED ON PROBABILITY DISTRIBUTION OF RATE-DISTORTION - The present invention provides a fast prediction mode determination method of a video encoder that may remove an unnecessary operation of an encoder by selectively terminating early or omitting a splitting process and a pruning process based on a probability distribution of rate-distortion values, and thereby enables the encoder to quickly determine a prediction mode. The present invention may include a method that may adaptively change a termination and omission determination criterion of the splitting process and the pruning process based on a characteristic of an input image. When using the method provided by the present invention, reliability regarding the termination and omission determination of the splitting process and the pruning process may be set and thus, it is possible to adjust the tradeoff between a decrease in an operation amount and a quality degradation of the encoder. | 2014-05-29 |
20140146885 | METHOD AND APPARATUS FOR MULTIPLEXING AND DEMULTIPLEXING VIDEO DATA TO IDENTIFY REPRODUCING STATE OF VIDEO DATA - A method and apparatus for multiplexing and de-multiplexing video data. The method of multiplexing the video data involves syntax to a header of transmission unit data that is used to multiplex a clean random access (CRA) picture used in a random access, wherein the predetermined syntax indicates a reproduction status of the CRA picture, i.e., normal reproduction or reproduction according to a random access. | 2014-05-29 |
20140146886 | METHOD AND APPARATUS FOR ENCODING VIDEO IN CONSIDERATION OF SCANNING ORDER OF CODING UNITS HAVING HIERARCHICAL STRUCTURE, AND METHOD AND APPARATUS FOR DECODING VIDEO IN CONSIDERATION OF SCANNING ORDER OF CODING UNITS HAVING HIERARCHICAL STRUCTURE - A method and apparatus for decoding a video and a method and apparatus for encoding a video are provided. The method for decoding the video includes: receiving and parsing a bitstream of an encoded video; extracting, from the bitstream, encoded image data of a current picture of the encoded video assigned to a maximum coding unit, and information about a coded depth and an encoding mode according to the maximum coding unit; and decoding the encoded image data for the maximum coding unit based on the information about the coded depth and the encoding mode for the maximum coding unit, in consideration of a raster scanning order for the maximum coding unit and a zigzag scanning order for coding units of the maximum coding unit according to depths. | 2014-05-29 |
20140146887 | PICTURE ENCODING METHOD, PICTURE DECODING METHOD, PICTURE ENCODING APPARATUS, PICTURE DECODING APPARATUS, PICTURE ENCODING PROGRAM, AND PICTURE DECODING PROGRAM - The encoding computational complexity and the decoding computational complexity are reduced while suppressing deterioration of coding efficiency in comparison with conventional intra divided-picture coding. A divided picture generation unit divides an input encoding target picture into blocks having the same size, and collects pixels having the same relative position in the blocks to generate divided pictures having the same size. An intra divided-picture encoding unit performs intra divided-picture encoding on some divided pictures. A reference picture selection unit selects, as a reference picture, an encoded divided picture in which a pixel position on an original picture is close in order to encode the other encoding target divided pictures. An inter divided-picture predictive encoding unit generates a predicted picture using the selected reference picture and encodes an encoding target divided picture through inter divided-picture prediction in units of divided pictures. | 2014-05-29 |
20140146888 | VIDEO ENCODING METHOD AND VIDEO DECODING METHOD - Provided is a video encoding/decoding technique for improving the compression efficiency by reducing the motion vector code amount. In a video decoding process, the prediction vector calculation method is switched from one to another in accordance with a difference between predetermined motion vectors among a plurality of motion vectors of a peripheral block of a block to be decoded and already decoded. The calculated prediction vector is added to a difference vector decoded from an encoded stream so as to calculate a motion vector. By using the calculated motion vector, the inter-image prediction process is executed. | 2014-05-29 |
20140146889 | METHOD AND SYSTEM FOR EFFICIENT VIDEO TRANSCODING - A method and system for an efficient transcoding of a sequence of input images in a first format to a sequence of output images in a second format are described. The method utilizes the encoding block mode, the motion vectors and the residual information extracted during the decoding of the input image that are effectively reused to select an optimal transcoding block mode and to perform selective refinement of motion vectors. A corresponding system for video transcoding is also provided. | 2014-05-29 |
20140146890 | SYSTEM AND METHOD FOR ENHANCED DMVD PROCESSING - To let decoder side motion vector derivation (DMVD) coded blocks be decoded in parallel, decoder side motion estimation (ME) dependency on spatially neighboring reconstructed pixels can be removed. Mirror ME and projective ME are only performed on two reference pictures, and the spatially neighboring reconstructed pixels will not be considered in the measurement metric of the decoder side ME. Also, at a video decoder, motion estimation for a target block in a current picture can be performed by calculating a motion vector for a spatially neighboring DMVD block, using the calculated motion vector to predict motion vectors of neighboring blocks of the DMVD block, and decoding the DMVD block and the target block in parallel. In addition, determining a best motion vector for a target block in a current picture can be performed by searching only candidate motion vectors in a search window, wherein candidate motion vectors are derived from a small range motion search around motion vectors of neighboring blocks. | 2014-05-29 |
20140146891 | Method and Apparatus of Scalable Video Coding - A method and apparatus for scalable video coding are disclosed, wherein the video data is configured into a Base Layer (BL) and an Enhancement Layer (EL) and wherein the EL has higher spatial resolution or better video quality than the BL. According to embodiments of the present invention, information from the base layer is exploited for coding the enhancement layer. The information coding for the enhancement layer includes CU structure, motion information, motion information, MVP/merge candidates, intra prediction mode, residual quadtree information, texture information, residual information, context adaptive entropy coding, Adaptive Lop Filter (ALF), Sample Adaptive Offset (SAO), and deblocking filter. | 2014-05-29 |
20140146892 | VIDEO ENCODING METHOD, VIDEO ENCODING DEVICE, VIDEO DECODING METHOD AND VIDEO DECODING DEVICE - A moving picture coding method including: determining whether or not (a) a picture including a co-located block and (b) a current picture to be coded are included in a same view, the co-located block being a block that is included in a picture different from the current picture and is at a position corresponding to a position of a current block to be coded included in the current picture; adjusting the position of the co-located block when the picture including the co-located block and the current picture are included in different views; and adding to the list an entry including a motion vector derived from the co-located block, wherein the adjusting includes: obtaining a disparity vector between the view including the picture including the co-located block and the view including the current picture; and adjusting the position of the co-located block by the obtained disparity vector. | 2014-05-29 |
20140146893 | METHOD AND APPARATUS FOR PREDICTIVE REFERENCE DATA TRANSFER SCHEME FOR MOTION ESTIMATION - A method and apparatus for predicting reference data transfer scheme for motion estimation. The method includes computing, via the processor, hypothetical rectangle region in reference frame containing all the predicting and reference data for doing motion estimation search around the region, if the macroblock is not the first in a row, utilizing overlap with previously fetched reference data, computing overlap with previously fetched reference data, and transferring needed data, invalidating any predictor, wherein the predictor is not part of the fetched data, and regulating the motion estimation and setting the motion vector to an effective value based on the fetched and computed data. | 2014-05-29 |
20140146894 | DEVICES AND METHODS FOR MODIFICATIONS OF SYNTAX RELATED TO TRANSFORM SKIP FOR HIGH EFFICIENCY VIDEO CODING (HEVC) - Modifications of syntax related to transform skip methods and systems for High Efficiency Video Coding (HEVC) are disclosed. | 2014-05-29 |
20140146895 | Fast Switching Hybrid Video Decoder - Techniques are presented herein for switching between a software decoder and a hardware decoder in a hybrid decoder. A video bit stream is received. The video bit stream is analyzed to determine whether or not the video bit stream can be decoded by the hardware decoder. When the video bit stream can be decoded by the hardware decoder, the video bit stream is routed to the hardware decoder and also stored in a first buffer. The video bit stream is decoded by the hardware decoder and when a reference frame is decoded, the reference frame is stored in a second buffer. When the video bit stream cannot be decoded by the hardware decoder, the video bit stream is routed to the software decoder for decoding. When an instantaneous decoder refresh (IDR) frame is decoded by the software decoder, the IDR frame is stored in the first buffer. | 2014-05-29 |
20140146896 | VIDEO PIPELINE WITH DIRECT LINKAGE BETWEEN DECODING AND POST PROCESSING - In general, in one aspect, a decode order for a group of picture (GOP) frame structure for a video stream is modified to include regenerated P frames. The modified decode order includes a regenerated P frame of a P frame decoded prior to a sequence of B frames after last B frame in the sequence of B frames and before next I or P frame. The frames are decoded in modified decode order by a decode engine. The decoded frames are post processed in a display order (only includes regenerated P frames and does not include initial P frames defined in the decode order) by a post processing engine. The post processing engine may ignore the initial P frames or the decode engine may not forward the initial P frames to the post processing engine. The post processed frames may be prepared for presentation by a display engine. | 2014-05-29 |
20140146897 | WIRELESS TELEMETRY AUTO FOR TORQUE MEASUREMENT SYSTEM - A torque measurement system that includes a rotor device and a stator device can perform automatic tuning to improve the initial tuning performed during design and assembly. The stator device can include a variable capacitive element and a micro-controller configured to adjust a capacitance value of the variable capacitive element. Additionally or alternatively, the rotor device can include a variable capacitive element and a micro-controller configured to adjust a capacitance value of the variable capacitive element. The adjustment of the capacitive elements can be based on the quality of signal detected at either the rotor device or stator device. | 2014-05-29 |
20140146898 | METHOD AND APPARATUS FOR DATA COMMUNICATIONS OVER POWER LINES - A computer-implemented method of transferring data from a source to a destination on an alternating current (AC) power waveform propagating over a utility power distribution network, where the computer includes a processor operatively coupled to the utility power distribution network via a power supply, includes sending a request over the power distribution network to create a virtual communication channel between the source and the destination on the power distribution network. The method further includes generating, by the processor, a data packet to be transmitted from the source to the destination via the virtual communication channel, and modulating the power drawn from the power supply to encode a series of static pulses onto the AC at predetermined intervals according to a function of frequency that is unique to the virtual communication channel. | 2014-05-29 |
20140146899 | METHOD AND APPARATUS FOR DATA COMMUNICATIONS OVER POWER LINES - A computer-implemented method of transferring data from a source to a destination on an alternating current (AC) power waveform propagating over a utility power distribution network, where the computer includes a processor operatively coupled to the utility power distribution network via a power supply, includes sending a request over the power distribution network to create a virtual communication channel between the source and the destination on the power distribution network. The method further includes generating, by the processor, a data packet to be transmitted from the source to the destination via the virtual communication channel, and modulating the power drawn from the power supply to encode a series of static pulses onto the AC at predetermined intervals according to a function of frequency that is unique to the virtual communication channel. | 2014-05-29 |
20140146900 | Building, Transmitting, and Receiving Frame Structures in Power Line Communications - Systems and methods for building, transmitting, and receiving frame structures in power line communications (PLC) are described. Various techniques described herein provide a preamble design using one or more symbols based on a chirp signal that yields a low peak-to-average power ratio (PAPR). According to some techniques, the preamble may be constructed with one or more different types and/or number of symbols configured to identify a PLC domain operating in close physical proximity to another PLC domain. According to other techniques, one or more preamble symbols may be interspersed within a header portion of a PLC frame to facilitate estimation of a frame boundary and/or sampling frequency offset, for example, in the presence of impulsive noise. According to yet other techniques, a PLC detector may be capable of receiving and decoding two or more types of PLC frames (e.g., using different PLC standards). | 2014-05-29 |
20140146901 | 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. | 2014-05-29 |
20140146902 | ANTENNA PATTERN MATCHING AND MOUNTING - A technique for improving wireless communication characteristics involving matching transmitter antenna patterns to receiver antenna patterns. In a specific implementation, the transmitter antenna pattern adapts to changing parameters, such as when a smartphone is initially held in a first orientation and is later held in a second orientation. Because the transmitter antenna pattern matches receiver antenna patterns, signal quality between stations improves. In some implementations, antennas are organized and mounted to maximize spatial diversity to cause peak gains in different directions. | 2014-05-29 |
20140146903 | RESOURCE ALLOCATION METHOD AND BASE STATION IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM - A resource allocation method and a base station which includes: acquiring, by the base station, channel state information (CSI) of a current scheduling timeslot; obtaining a compensation factor according to the CSI and a preset packet error ratio, where the compensation factor is a value corresponding to the preset packet error ratio in an inverse cumulative distribution function of a non-central chi-square random variable and a non-central parameter; replacing the CSI with the compensation factor, and determining a functional relationship between rate and power of sending data by the base station if a packet error ratio of the base station is less than or equal to the preset packet error ratio; and determining, according to the functional relationship and a generalized dynamic back pressure algorithm, the rate and total power of sending data by the base station, so as to minimize the total power of the base station. | 2014-05-29 |
20140146904 | WIRELESS TRANSMISSION APPARATUS, WIRELESS RECEPTION APPARATUS, WIRELESS COMMUNICATION SYSTEM, CONTROL PROGRAM AND INTEGRATED CIRCUIT - The present invention switches an interference suppression system between a linear precoding and a nonlinear precoding in accordance with a communication environment. A wireless transmission apparatus is provided with a plurality of transmission antenna units ( | 2014-05-29 |
20140146905 | FLEXIBLE, RECONFIGURABLE MULTIPOINT-TO-MULTIPOINT DIGITAL RADIO FREQUENCY TRANSPORT ARCHITECTURE - A distributed antenna system includes network interfaces configured to receive signals from devices external to distributed antenna system and to convert signals to downlink serialized data streams; distributed antenna switch communicatively coupled to network interfaces by digital communication links, distributed antenna switch configured to receive downlink serialized data stream from network interfaces across corresponding digital communication link; distributed antenna switch further configured to aggregate downlink serialized data streams into aggregate downlink serialized data stream; remote antenna unit communicatively coupled to distributed antenna switch by digital communication link that receives aggregate downlink serialized data stream across digital communication link, remote antenna unit further configured to extract downlink serialized data streams from aggregate downlink serialized data stream; remote antenna unit having radio frequency converter configured to convert downlink serialized data stream into radio frequency band and radio frequency transceiver/antenna pair configured to transmit signals in radio frequency band to subscriber unit. | 2014-05-29 |
20140146906 | FORWARD-PATH DIGITAL SUMMATION IN DIGITAL RADIO FREQUENCY TRANSPORT - A distributed antenna switch includes a plurality of first interfaces, each of the plurality of first interfaces configured to receive a downlink serialized data stream from a different network interface across a different first digital communication link; at least one second interface, the at least one second interface configured to communicate an aggregate downlink serialized data stream to a remote antenna unit over a second digital communication link; and wherein the distributed antenna switch is configured to aggregate the plurality of downlink serialized data streams from the different network interfaces into the aggregate downlink serialized data stream. | 2014-05-29 |
20140146907 | METHOD AND APPARATUS FOR PERFORMING COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for performing communication in a wireless communication system are provided. The method includes identifying a transmission mode configured for a serving cell by a Base Station (BS), by a User Equipment (UE), identifying an antenna configuration of the BS by the UE, determining the number of bits for a Rank Indication (RI) representing the number of layers based on the transmission mode and the antenna configuration, and generating an RI using the determined number of bits and transmitting the RI in transmission resources of the serving cell to the BS by the. | 2014-05-29 |
20140146908 | MULTIPLE INPUT, MULTIPLE OUTPUT WIRELESS COMMUNICATION SYSTEM, ASSOCIATED METHODS AND DATA STRUCTURES - Briefly, in accordance with one or more embodiments, in response to receiving a wireless communication signal, a non-uniform codebook is generated based at least in part on one or more characteristics of the received wireless communication signal for quantization and communication back to a source of the received signal. The non-uniform codebook may be generated by selecting a suitable uniform codebook based at least in part on the one or more characteristics of the received wireless communication signal, and supplementing the uniform codebook with additional codewords to generate the non-uniform codebook. | 2014-05-29 |
20140146909 | Beamforming Using Predefined Spatial Mapping Matrices - In one or more aspects data packets are iteratively transmitted to a receiver using predefined spatial mapping matrices, channel estimates are received from the receiver responsive to iteratively transmitted data packets, and one of the predefined spatial mapping matrices is selected for transmitting additional data packets to the receiver based on the received channel estimates. | 2014-05-29 |
20140146910 | DELAY QUANTITY ESTIMATION APPARATUS AND DELAY QUANTITY ESTIMATION METHOD - A delay quantity estimation apparatus comprises a first correlation value arithmetic unit to calculate a first correlation value as a correlation value between a first input signal and a feedback signal delayed with a first delay value; a second correlation value arithmetic unit to calculate a second correlation value as a correlation value between the first input signal and a feedback signal delayed with a second delay value; and a delay quantity estimation unit to estimate a delay quantity of the feedback signal with respect to the input signal on the basis of the first difference value as a difference between the first correlation value and the second correlation value, wherein the second delay value is a value given by adding a certain value to the first delay value. | 2014-05-29 |
20140146911 | Dynamic Filter Adjustment for Highly-Spectrally-Efficient Communications - A method and system for dynamic configuring of one or both of a transmitter pulse-shaping filter and a receiver pulse-shaping filter to generate a total partial response that incorporates a predetermined amount of inter-symbol interference (ISI). The predetermined amount of ISI is determined based on an estimation process during extraction of data from an output of the receiver pulse-shaping filter, such that performance of total partial-response-based communication matches or surpasses performance of communication incorporating filtering based on no or near-zero ISI. The reconfiguring may comprise obtaining data relating to changes affecting one or more of: the pulse-shaping filtering, and a channel and/or an interface used in the communication of data based on the total partial response, and adjusting the filter configuration, such as by determining a new optimized filtering configuration or changes to existing configurations (e.g., by applying a filtering optimization process). | 2014-05-29 |
20140146912 | METHOD AND APPARATUS FOR REDUCING INTERFERENCE IN SPACE FREQUENCY BLOCK CODING COMMUNICATION - A method and apparatus of reducing interference in space frequency block coding (SFBC) communication are disclosed. SFBC encoding is performed on at least one pair of symbols. The symbols are assigned to subcarriers in accordance with a frequency assignment pattern assigned to a cell. Different frequency assignment patterns are assigned to neighboring cells. Cells in the network may be divided into a plurality of groups and a different frequency assignment pattern may be assigned to each group of cells. The frequency assignment pattern may be defined such that subcarriers mapped to a pair of symbols in one cell are interlaced to subcarriers mapped to a pair of symbols in a neighbor cell. Alternatively, the frequency assignment pattern may be defined such that subcarriers mapped to a pair of symbols in one cell are shifted in a neighbor cell. | 2014-05-29 |
20140146913 | Capacitive Digital to Analog Converter - Some examples relate to a digital to analog converter (DAC). The DAC includes a digital signal input configured to receive a multi-bit digital input signal, and an array of cells. Respective cells in the array comprise respective capacitors. The DAC also includes a control circuit configured to, based on the multi-bit digital input signal, selectively induce one or more corresponding capacitors to discharge current to an output terminal of the DAC. | 2014-05-29 |
20140146914 | Digital to Analog Converter Comprising Mixer - One example described herein relates to a digital to analog converter (DAC). The DAC includes a digital signal input configured to receive a multi-bit digital input signal, and a plurality of cells arranged in rows and columns. Each cell includes a current source. A row decoder and a column decoder provide respective control signals to respective rows and respective columns to selectively couple a number of the current sources to an output of the DAC. The number of current sources which are coupled to the output by the control signals is dependent on the multi-bit digital input signal. At least one of the control signals is modulated based on a local oscillator signal. | 2014-05-29 |
20140146915 | TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEIVING DEVICE AND RECEIVING METHOD - Provided is a frame configuration usable for both SISO transmission and MISO and/or MIMO transmission. A frame configurator of a transmission device configures a frame by gathering data for SISO and configures a frame by gathering data for MISO and/or MIMO data, thereby to improve the reception performance (detection performance) of a reception device. | 2014-05-29 |
20140146916 | Cooperative Subspace Multiplexing in Content Delivery Networks - A source node selects a plurality of original data components to transfer to at least one destination node. A plurality of transmitting nodes cooperatively encodes the original data components to generate a plurality of subspace coded components and a corresponding code matrix. Each of the transmitting nodes transmits a subset of the plurality of subspace coded components and corresponding code matrix, wherein at least one of the transmitting nodes has a rank that is insufficient for decoding the plurality of subspace coded components. A destination node may employ a plurality of receiving nodes to cooperatively receive a plurality of subspace coded components and their corresponding code vectors, wherein the rank of at least one of the receiving nodes is insufficient for decoding the coded components. The destination node builds up the dimension of the subspace spanned by code vectors it collects from the receiving nodes so it can decode the coded components. | 2014-05-29 |
20140146917 | TRANSMITTER WITH PRE-DISTORTION MODULE, A METHOD THEREOF - Aspects of the disclosure provide a transmitter that includes a pre-distortion module and a phase controller. The pre-distortion module is configured to receive a first digital value and generate a first pre-distorted digital value based on the first digital value and a corresponding angle. The first digital value is a combination of an in-phase component and a quadrature component of a signal for transmission. The phase controller is configured to control an amplifier to drive a current according to the first pre-distorted digital value and phase information in relation to the first digital value during a first phase range of a carrier signal determined at least partially based on the angle. | 2014-05-29 |
20140146918 | Detection and Mitigation of an Abnormal Signal Condition Within a Power Amplifier (PA) - A transmitter module of the present disclosure can detect for a presence of an abnormal signal condition, such as a frequency transient within a signal of the transmitter module which can damage the transmitter module, a signal within the transmitter module being at a sufficient power level which can damage the transmitter module, and/or a signal within the transmitter module being at a power level for a sufficient duration which can damage the transmitter module to provide some examples. Once the abnormal signal condition has been detected by the transmitter module, the transmitter module can mitigate effects of the abnormal signal condition to prevent damage within the transmitter module. The transmitter module can adjust an operating characteristic of a module within the transmitter module and/or a signal characteristic of a signal within the transmitter module to mitigate the effects of the abnormal signal condition. | 2014-05-29 |
20140146919 | HIGH EFFICIENCY ADAPTIVE RF TRANSMITTER - One embodiment of the present invention provides a system for controlling operations of an amplifier in a wireless transmitter. During operation, the system receives a baseband signal to be transmitted, and dynamically switches an operation mode of the amplifier between a high power back-off mode having a first power back-off factor and a normal mode having a second power back-off factor based on a level of the baseband signal. | 2014-05-29 |
20140146920 | MIXER WITH IQ GAIN-PHASE CALIBRATION CIRCUIT - A mixer with IQ gain-phase calibration circuit is provided, including an I-path input stage, a Q-path input stage, an I-path switching stage, a Q-path switching stage, and an output stage, wherein the output stage further includes a phase calibration module, and a gain calibration module. The I-path and Q-path input stages are to convert the input voltage signal to a current signal, and the I-path and Q-path switching stages are to perform computation on input signal from the input stages with local oscillation signal. The signals from the switching stages are then passed through the phase calibration module for phase calibration and then through the gain calibration module for gain calibration before outputting. | 2014-05-29 |
20140146921 | RECEIVER FOR RECOVERING UNIVERSAL SERVICES IN A SPOT BEAM SATELLITE TRANSMISSION SYSTEM AND METHOD - A terrestrial receiver recovers universal services in a satellite radio transmission system including discrete signal sources producing overlapping spot beam loci within a coverage area, wherein the signals forming the beams each contain repeating time aligned universal services having a master synchronizing frame, at least one common channel, and at least one spot specific channel with differing frequency and/or polarization. The receiver switches among antenna elements. A portion of antenna elements receive a transmitted signal, including a plurality of sub-channels that are transmitted in predetermined time intervals. A switching device switches among single antenna elements to receive the transmitted signal. A controller commands the switching device to select each of the antenna elements separately in predetermined periods of time based upon the predetermined time intervals of each of the master synchronizing frames. A power level of the transmitted signal is determined during the predetermined time intervals. | 2014-05-29 |
20140146922 | QUASI-DIGITAL RECEIVER FOR HIGH SPEED SER-DES - Techniques are described herein that provide an interface for receiving and deserializing digital bit stream(s). For instance, a receiver for a high-speed deserializer may include digital slicers, a digital phase interpolator, and a digital clock phase generator. The digital slicers may be configured to determine a digital value of a data input. The digital phase interpolator may be configured to generate an interpolated clock signal based on input clock signals that correspond to respective phases of a reference clock. The phase of the interpolated clock tracks the data input to the receiver through a clock recovery loop. The digital clock phase generator may be configured to generate output clock signals to control timing of the respective digital slicers. The receiver may further include a single digital eye monitor configured to monitor a data eye of the data input. | 2014-05-29 |
20140146923 | Method for Demodulating the HT-SIG Field Used in WLAN Standard - A method for demodulating a signal modulated with a first phase modulation technique with a demodulator adapted to demodulate signals modulated with a second phase modulation technique, the first phase modulation technique being based on a first phase constellation diagram and the second phase modulation technique being based on a second phase constellation diagram, the second phase constellation diagram being obtained by rotating the first phase constellation diagram by an angle being a non-nul integer multiple of 90 degrees, the method comprising: a) rotating the signal modulated with the first phase modulation technique by said angle; and b) demodulating the rotated signal with the demodulator. The method enables to use former optimized demodulator. | 2014-05-29 |
20140146924 | Cooperative Subspace Demultiplexing in Content Delivery Networks - A source node selects a plurality of original data components to transfer to at least one destination node. A plurality of transmitting nodes cooperatively encodes the original data components to generate a plurality of subspace coded components and a corresponding code matrix. Each of the transmitting nodes transmits a subset of the plurality of subspace coded components and corresponding code matrix, wherein at least one of the transmitting nodes has a rank that is insufficient for decoding the plurality of subspace coded components. A destination node may employ a plurality of receiving nodes to cooperatively receive a plurality of subspace coded components and their corresponding code vectors, wherein the rank of at least one of the receiving nodes is insufficient for decoding the subspace coded components. The destination node builds up the dimension of the subspace spanned by code vectors it collects from the receiving nodes and then decodes the subspace coded components. | 2014-05-29 |
20140146925 | METHOD AND APPARATUS FOR ITERATIVELY DETECTING AND DECODING SIGNAL IN COMMUNICATION SYSTEM WITH MULTIPLE-INPUT AND MULTIPLE-OUT (MIMO) CHANNEL - A communication apparatus with a multiple-input and multiple-output (MIMO) channel, includes a minimum mean square error (MMSE) detector configured to estimate quadrature amplitude modulation (QAM) symbols based on signals received through the MIMO channel. The apparatus further includes a QAM demodulator configured to demodulate the estimated QAM symbols, and estimate a first posterior probability of each of encoded bits of the estimated QAM symbols, and a first module configured to remove a first prior probability of each of the encoded bits from the first posterior probability to generate soft estimates of the encoded bits. The apparatus further includes a channel decoder configured to decode the encoded bits based on the soft estimates, and generate an improved posterior probability of each of the encoded bits, and a second module configured to generate a second prior probability of each of the encoded bits based on the improved posterior probability. | 2014-05-29 |