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)
07/2003
07/03/2003US20030126546 Decoding method, decoding apparatus and digital transmission system of product code
07/03/2003US20030126544 Forward error correction apparatus and methods
07/03/2003US20030126543 Method and apparatus for solving key equation polynomials in decoding error correction codes
07/03/2003US20030126542 Method and apparatus for computing reed-solomon error magnitudes
07/03/2003US20030126541 Data decoding method
07/03/2003US20030126540 Method for network adaptive error control in FoIP
07/03/2003US20030126538 High-efficiency compact turbo-decoder
07/03/2003US20030126537 Error correction code block generating method and apparatus and optical storage medium containing error correction code block
07/03/2003US20030126535 Method and apparatus for signaling an error condition to an agent not expecting a completion
07/03/2003US20030123585 Receiver with DFE and viterbi algorithm for block code transmission
07/03/2003US20030123579 Viterbi convolutional coding method and apparatus
07/03/2003US20030123578 Method for determining connection quality, and a receiver
07/03/2003US20030123563 Method and apparatus for turbo encoding and decoding
07/03/2003US20030123562 Adaptive modem, pragmatic decoder and decoding method
07/03/2003US20030123524 CDMA system transmission matrix coefficient calculation
07/03/2003US20030123412 Method for balancing the ratio Eb/I in a service multiplexing CDMA system and telecommunication system using this method
07/03/2003DE20121799U1 Creating optimal codes in CDMA mobile communication system, involves generating (2k-2t) first order Reed-Muller codes from 2k first order Reed-Muller codes, based on k input information bits
07/02/2003EP1324527A1 Interleaving apparatus and method for symbol mapping in an HSDPA mobile communication system
07/02/2003EP1324502A2 Cascade Map Decoder and Method
07/02/2003EP1324501A1 Iterative concatenated code decoding circuit and encoding/decoding system using the same
07/02/2003EP1324500A1 Digital communication method and system with variable interleaving
07/02/2003EP1323269A2 Segmental deinterlacing
07/02/2003EP1323235A2 Method and apparatus for encoding of linear block codes
07/02/2003CN1427573A Convolution mixer and its data read and wright method
07/02/2003CN1427548A Iterative chain code decoding circuit and encoding/decoding system with same
07/02/2003CN1113499C Receiver decoder circuitry, and associated method, for decoding channel encoded signal
07/02/2003CN1113498C Method and system for providing secondary channel for communication network
07/02/2003CN1113486C Satellite communication system utilizing paralled concatenated coding
07/02/2003CN1113475C Coding system and method providing unequal error protection by puncturing less significant symbols
07/02/2003CN1113474C CRC/EDC checker system and method
07/02/2003CN1113471C 无损编码和解码系统 Lossless encoding and decoding system
07/02/2003CN1113295C Error correcting encoding method and its apparatus
07/01/2003US6587987 Method and apparatus for extracting reliability information from partial response channels
07/01/2003US6587986 Error correcting decoder
07/01/2003US6587864 Galois field linear transformer
07/01/2003US6587826 Channel code configurations for digital audio broadcasting systems and other types of communication systems
07/01/2003US6587521 Signal estimator and program stored memory medium
07/01/2003US6587520 Generation of amplitude levels for a partial response maximum likelihood (PRML) bit detector
07/01/2003US6587519 Efficient apparatus and method for generating a trellis code from a shared state counter
07/01/2003US6587501 Method and apparatus for joint detection of a coded signal in a CDMA system
07/01/2003US6587059 Code and method for encoding data
07/01/2003CA2281353C Method and apparatus for transmitting mpeg video over the internet
06/2003
06/26/2003WO2003052997A2 Method and apparatus for coding bits of data in parallel
06/26/2003WO2003052943A1 Method and arrangement for enhancing search through trellis
06/26/2003WO2003052942A1 Error correction of balanced codeword sequence
06/26/2003WO2002013393A9 Communicating information via a frame check sequence having an information block associated therewith
06/26/2003US20030120996 High speed add-compare-select operations for use in viterbi decoders
06/26/2003US20030120995 Interleaving apparatus and method for symbol mapping in an HSDPA mobile communication system
06/26/2003US20030120994 Convolutional encoding using a modified multiplier
06/26/2003US20030120993 Viterbi decoder using restructured trellis
06/26/2003US20030120992 METHOD AND APPARATUS FOR COMPUTING @$apos;N-BIT AT A TIME@$apos; CRC@$apos;s OF DATA FRAMES OF LENGTHS NOT MULTIPLE OF N
06/26/2003US20030120991 Processor with packet data flushing feature
06/26/2003US20030118345 Digital transmission system
06/26/2003US20030118130 System and method for shared decoding using a data replay scheme
06/26/2003US20030118093 Device and method for viterbi equalization with metric increments calculated in advance
06/25/2003EP1322042A1 Convolutional encoding using a modified multiplier
06/25/2003EP1322041A1 Viterbi decoder using restructured trellis
06/25/2003EP1320951A1 An fec scheme for encoding two bit-streams
06/25/2003EP1320940A2 Method and apparatus for efficient walsh covering and summing of signals in a communication system
06/25/2003EP1320933A2 Method and apparatus for efficient processing of signal in a communication system
06/25/2003EP1320930A2 Communication system method and apparatus
06/25/2003EP1320929A1 Third generation fdd modem interleaver
06/25/2003EP1236281B1 Turbo code decoder and turbo code decoding method with iterative channel parameter estimation
06/25/2003CN1426633A Flexible data rate matching apparatus and method in data communication system
06/25/2003CN1426630A Efficient trellis state metric normalization
06/25/2003CN1426188A Equipment and method for actuating coding and speed matching in CDMA mobile communication system
06/25/2003CN1426063A Disc record medium, disc driving device and playback method
06/25/2003CN1425979A Method for voice chatting between multiple kinds of terminals
06/25/2003CN1112781C Multi-carrier-wave transmission interleaving apparatus and method thereof
06/25/2003CN1112778C Method for checking channel circulation redundance code in digital communication system
06/25/2003CN1112776C Puncturing device and method for turbo encoder in mobile communication system
06/25/2003CN1112771C BS digital broadcasting receiver
06/25/2003CN1112770C Viterbi decoding method and circuit for said method
06/24/2003US6584594 Data pre-reading and error correction circuit for a memory device
06/24/2003US6584486 Method for mathematically processing two quantities in an electronic circuit
06/19/2003WO2002035708A3 Method for detecting errors on parallel links
06/19/2003US20030115541 Method and apparatus for joint equalization and decoding of multidimensional codes transmitted over multiple symbol durations
06/19/2003US20030115540 Base-band encoding apparatus and frequency modulation method using the same in digital broadcasting system
06/19/2003US20030115539 System and method of turbo decoding
06/19/2003US20030115537 Weighted error/erasure correction in a multi-track storage medium
06/19/2003US20030115534 Signal processing method and apparatus, signal reproducing method and apparatus, and recording medium
06/19/2003US20030115533 Source coding for interference reduction
06/19/2003US20030115532 Turbo code encoder and code rate decreasing method thereof
06/19/2003US20030115531 Turbo decoding apparatus and interleave-deinterleave apparatus
06/19/2003US20030115530 Fast turbo-code encoder
06/19/2003US20030115529 Forward error correcting code encoding equipment, forward error correcting code decoding equipment, and transmission apparatus
06/19/2003US20030115417 Methods and apparatus for loading CRC values into a CRC cache in a storage controller
06/19/2003US20030115061 MPSK equalizer
06/19/2003US20030112901 Method and apparatus for determining the log-likelihood ratio with precoding
06/19/2003US20030112900 Demodulation apparatus and method in a communication system employing 8-ary PSK modulation
06/19/2003US20030112897 Demodulating encoded data
06/19/2003US20030112886 Decoding method and apparatus
06/19/2003US20030112733 Expected value generation unit and a data reproduction apparatus
06/19/2003US20030112669 Data storage apparatus, read data processor, and read data processing method
06/18/2003CN1425241A Enhanced cut prediction of feedback
06/18/2003CN1111990C Transmitter method and transmission system using adaptive coding based on channel characteristics
06/18/2003CN1111967C Digital radio communication receiver
06/18/2003CN1111962C Parallel chaining convolutional code, decoding method and its excuting codes decoder and system
06/18/2003CN1111961C Coder and decoder of fast correcting
06/17/2003US6581185 Apparatus and method for reconstructing data using cross-parity stripes on storage media