Patents
Patents for H03M 13 - Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes (37,393)
03/2003
03/26/2003CN1103997C Error code correction/test decder
03/25/2003US6539516 Forward error corrector
03/25/2003US6539515 Accelerated Reed-Solomon error correction
03/25/2003US6539513 Dual functioning symbol error correction code
03/25/2003US6539512 Interleaving method and circuit for high density recording medium
03/25/2003US6539367 Methods and apparatus for decoding of general codes on probability dependency graphs
03/25/2003US6539052 System for accelerating the reconfiguration of a transceiver and method therefor
03/25/2003US6538585 Distance-enhancing coding method
03/20/2003WO2003023999A1 A method of error-correcting encoding source data elements and corresponding iterative decoder
03/20/2003WO2003023977A1 Transmitter diversity method and transmitter diversity device
03/20/2003WO2003023976A1 Apparatus and methods for block encoding data
03/20/2003WO2003023975A1 Method for qualifying error-correcting codes, optimization method, corresponding encoder, decoder and application
03/20/2003WO2003023973A1 A iterate decode mothod for cascading block code bases on subcode syndrome decode
03/20/2003WO2003023949A1 State metric rescaling for viterbi decoding
03/20/2003WO2003023770A1 Error correction code circuits
03/20/2003WO2003023709A1 Pipeline architecture for maximum a posteriori (map) decoders
03/20/2003WO2003001730A9 Method and device for transferring data according to an arq-method
03/20/2003WO2002058246A3 Robust checksums
03/20/2003US20030056221 Digital implementation of multi-channel demodulators
03/20/2003US20030056169 Cyclic position codes
03/20/2003US20030056168 Encoder redundancy selection system and method
03/20/2003US20030056167 Look-up table addressing scheme
03/20/2003US20030056166 Iterative decoding method for block turbo codes of greater than three dimensions
03/20/2003US20030054128 Optical disc, recording apparatus and method for optical disc, and its reproducing method
03/20/2003US20030053568 State metric rescaling for Viterbi decoding
03/20/2003US20030053566 Method and apparatus for efficient calculating distance metric
03/20/2003US20030053548 Wireless infrared digital audio system
03/20/2003US20030053538 Systems and methods for detecting scene changes in a video data stream
03/20/2003US20030053537 Systems and methods for reducing frame rates in a video data stream
03/20/2003US20030053454 Systems and methods for generating error correction information for a media stream
03/20/2003CA2459383A1 Pipeline architecture for maximum a posteriori (map) decoders
03/19/2003EP1294152A2 Calculation of soft decision values in a 64-QAM receiver
03/19/2003EP1294108A1 Process for decoding of non-linear codes
03/19/2003EP1294102A1 Communication apparatus and communication method
03/19/2003EP1293978A1 Coding/decoding process and device, for instance for disk drives
03/19/2003EP1293938A2 Binary counter with permuted storage
03/19/2003EP1292943A1 Audible error detector and controller utilizing channel quality data and iterative synthesis
03/19/2003CN1404656A Scaling of demodulated data in an interleaver memory
03/19/2003CN1404655A Method for adapting the data blocks to be supplied to a turbo coder and a corresponding communications device
03/19/2003CN1404604A Optical disc, recording apparatus and method for optical disc, and its reproducing method
03/19/2003CN1404252A Constituting method and device of walls code
03/19/2003CN1404229A Survival path memory controlling method for Viterbi decoder
03/19/2003CN1404058A EFM data decoding method for CD machine system
03/19/2003CN1103513C Device for measuring bit error rate with whitebi decoder
03/19/2003CN1103512C Method and equipment for generating a transform
03/18/2003US6536010 Digital transmission system and method
03/18/2003US6536001 Circuit and method for convolutional interleaving using a single modulo operation
03/13/2003WO2003021964A1 Image encoding method, image decoding method, and apparatus thereof
03/13/2003WO2003021805A1 Sub-optimal iterative receiver method and system for a high-bit-rate cdma transmission system
03/13/2003WO2003021793A1 Information transmission apparatus, information transmission method, information reception apparatus, and information reception method
03/13/2003WO2003021440A1 Decoding architecture for low density parity check codes
03/13/2003WO2002067433A3 Convolutional decoder
03/13/2003WO2002015411A3 Unified technique for multi-rate trellis coding and decoding
03/13/2003US20030051206 Decoder
03/13/2003US20030051205 Forward error correction scheme for CDMA data channels using universal turbo codes
03/13/2003US20030051204 Interconnect system with error correction
03/13/2003US20030051202 Error correcting communication method and communication apparatus to which this communication method is applied
03/13/2003US20030051201 Coding/decoding process and device, for instance for disk drives
03/13/2003US20030051200 Method and apparatus for detecting start position of code sequence, and decoding method and apparatus using the same
03/13/2003US20030048206 Interleaved coder and method
03/12/2003EP1292077A2 Sequence estimation for PSK signals
03/12/2003EP1292057A1 Error correcting/decoding method
03/12/2003EP1292037A1 Communication apparatus and communication method
03/12/2003EP1290821A2 Baseband processors and methods and systems for decoding a received signal having a transmitter or channel induced coupling between bits
03/12/2003EP1290808A1 System for data transmission according to the frequency hopping method
03/12/2003EP1290803A1 Multiplexing-interleaving and demultiplexing-deinterleaving
03/12/2003EP1290802A1 Systems and methods for ldpc coded modulation
03/12/2003EP1290691A1 Detector, reproduction system, receiver and method
03/12/2003CN1402910A Method and arrangement for implementing intra-frame interleaving
03/12/2003CN1402459A Apparatus and method for sign mapping transmission format combined indicating sign bit
03/12/2003CN1402238A Digital signal error compensation device and method
03/12/2003CN1103143C Error correcting method and apparatus thereof
03/12/2003CN1103104C Signal modulation method, signal modulator, signal demodulation method and signal demodulator
03/12/2003CN1103093C Processing of speech coder parameters
03/11/2003US6532567 Method and apparatus of Viterbi detection for trellis-code
03/11/2003US6532566 Modified Reed-Solomon multiplication
03/11/2003US6532565 Burst error and additional random bit error correction in a memory
03/11/2003US6532564 Encoder for multiplexing blocks of error protected bits with blocks of unprotected bits
03/11/2003US6532337 Digital-signal playback apparatus
03/11/2003US6532258 Method for estimating signal-to-noise ratio of digital carriers in an AM compatible digital audio broadcasting system
03/06/2003WO2003019847A1 A method and a system for transfering amr signaling frames on halfrate channels
03/06/2003WO2003019832A1 Mobile body communication system, multi-carrier cdma transmission apparatus, and multi-carrier cdma reception apparatus
03/06/2003WO2003019794A2 Method and apparatus implementing retransmission in a communication system providing h-arq
03/06/2003WO2003019793A2 Maximum likelihood detector
03/06/2003WO2003019792A1 System and method performing quadrature amplitude modulation by combining co-sets and strongly coded co-set identifiers
03/06/2003WO2003019791A2 System and method for reducing the peak power in multi-carrier modulation
03/06/2003WO2003019790A1 Universal device for processing reed-solomon forward error-correction encoded messages
03/06/2003WO2003019352A1 Fast, iterative system and method for evaluating a modulo operation without using division
03/06/2003WO2002089331A3 Area efficient parallel turbo decoding
03/06/2003WO2002041504A3 Methods and apparatus for identifying asset location in communication networks
03/06/2003US20030046637 Even-load software reed-solomon decoder
03/06/2003US20030046636 Error detector, semiconductor device, and error detection method
03/06/2003US20030046635 High-efficiency error detection and/or correction code
03/06/2003US20030046633 Data error correction based on reported factors and predicted data interference factors
03/06/2003US20030046629 High code rate block coding/decoding method and apparatus
03/06/2003US20030046628 Error method, system and medium
03/06/2003US20030043939 Signal evaluation devices and signal evaluation methods, signal quality evaluation methods and reproducing devices and recording devices
03/06/2003US20030043888 Encoding/decoding apparatus and method in a CDMA mobile communication system
03/06/2003US20030043886 Method and apparatus for joint detection of a coded signal in a CDMA system
03/06/2003US20030043852 Method and apparatus for verifying data integrity based on data compression parameters