Patents
Sitemap › H03 - Basic electronic circuitry › H03M - Coding, decoding or code conversion, in general › 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
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)
11/1999
11/23/1999US5991343 Trellis decoder of a DTV
11/23/1999US5991341 TCM decoder of high definition television receiver and decoding method
11/23/1999US5991308 Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant
11/23/1999US5991107 Sychronous read channel
11/23/1999US5988872 Sector data decoding method and circuit in a CD-ROM drive
11/23/1999CA2116069C Method and apparatus for error-control coding in a digital data communications system
11/18/1999WO1999059252A1 Method and apparatus for accurate synchronization using symbol decision feedback
11/17/1999EP0876645B1 Circuit for multiplying numbers defined in a galois-field, circuit for calculating syndromes and circuit for performing a chien search
11/17/1999EP0788629A4 A galois field polynomial multiply/divide circuit and a digital signal processor incorporating same
11/17/1999CN1235457A Adaptive equalizer
11/17/1999CN1235429A Add-compare selection circuit
11/17/1999CN1235427A Decoding device
11/17/1999CN1235335A Method for improving performance of voice coder
11/16/1999US5987638 Apparatus and method for computing the result of a viterbi equation in a single cycle
11/16/1999US5987637 Traceback stage for a viterbi decoder
11/16/1999US5987631 Apparatus for measuring bit error ratio using a viterbi decoder
11/16/1999US5987490 Mac processor with efficient Viterbi ACS operation and automatic traceback store
11/16/1999US5987067 Variable encoding rate puncturer
11/16/1999US5986593 Reproducing apparatus, error correcting device and error correcting method
11/16/1999US5986592 Encoder decoder device not using an A/D converter and method thereof
11/11/1999WO1999057816A1 Product code iterative decoding
11/10/1999EP0955731A2 Lossless encoding and decoding system
11/10/1999EP0955630A1 Apparatus for writing and reading optical recording medium
11/10/1999EP0955586A1 Coding with modulation, error control, weighting, and bit allocation
11/10/1999CN1234936A Transmission of digital signals by orthogonal frequency division multiplexing
11/09/1999US5983389 Error correction decoding apparatus
11/09/1999US5983388 Forward error correction arrangement (FEC) for multipoint to single point communication systems
11/09/1999US5983385 Communications systems and methods employing parallel coding without interleaving
11/09/1999US5983384 Turbo-coding with staged data transmission and processing
11/09/1999US5983383 Method and apparatus for transmitting and receiving concatenated code data
11/09/1999US5983382 Automatic retransmission query (ARQ) with inner code for generating multiple provisional decodings of a data packet
11/09/1999US5983174 Confidence and frame signal quality determination in a soft decision convolutional decoder
11/09/1999US5982822 Viterbi decoder
11/09/1999US5982818 Method for implementing trellis codes for ISI channels
11/09/1999US5982817 Transmission system utilizing different coding principles
11/09/1999US5982294 Paging receiver which performs data communication protocol analysis through execution of control program
11/04/1999WO1999056398A1 Method and device for error correcting coding for high rate digital data transmissions, and corresponding decoding method and device
11/03/1999EP0954109A2 Convolutional interleaver, convolutional deinterleaver, convolutional interleaving method, and convolutional deinterleaving method
11/03/1999EP0954108A1 Error correction encoding/decoding method and apparatus for high rate digital data transmission
11/03/1999EP0953230A1 Error prevention method for multimedia
11/03/1999CN1234160A Method and apparatus for determining rate of received data in variable rate communication system
11/02/1999US5978959 Method and devices for the transmission of data with transmission error checking
11/02/1999US5978958 Data transmission system, data recording and reproducing apparatus and recording medium each having data structure of error correcting code
11/02/1999US5978956 Five-error correction system
11/02/1999US5978955 Methods and apparatus for error correction using an R-Q calculator
11/02/1999US5978954 On-the-fly error detection and correction buffer processor
11/02/1999US5978951 High speed cache management unit for use in a bridge/router
11/02/1999US5978950 Polynomial evaluator for use in a reed-solomon decoder
11/02/1999US5978883 Block interleaving and deinterleaving method and device therefor
11/02/1999US5978414 Transmission rate judging unit
11/02/1999US5978162 Synchronous read channel integrated circuit employing a channel quality circuit for calibration
10/1999
10/28/1999WO1999055037A1 Process for transmitting, receiving and/or storing information
10/28/1999WO1999055011A1 Channel encoding device and method for communication system
10/28/1999WO1999055010A1 Method and apparatus for tcm decoding using qpsk viterbi decoder
10/28/1999WO1999055009A1 45 degree phase ambiguity resolution for 8psk modulation
10/28/1999WO1999055008A1 Channel encoding/decoding apparatus and method for communication system
10/28/1999CA2329179A1 Process for transmitting, receiving and/or storing information
10/27/1999EP0952711A2 Joint maximum likelihood sequence estimator with dynamic channel description
10/27/1999EP0952673A1 Interleaving method, interleaving apparatus, and recording medium in which interleave pattern generating program is recorded
10/27/1999EP0952665A2 Slope, drift and offset compensation in zero-if receivers
10/27/1999EP0951755A1 Method and apparatus for transmitting and receiving concatenated code data
10/27/1999CN1233113A Deinterleaver
10/27/1999CN1233053A Error correction apparatus
10/26/1999US5974584 Parity checking in a real-time digital communications system
10/26/1999US5974583 Error correcting method and device
10/26/1999US5974582 High-speed chien search logic
10/26/1999US5974580 Concurrent row/column syndrome generator for a product code
10/26/1999US5974091 Composite trellis system and method
10/26/1999US5971607 Polynomial evaluator for use in a Reed-Solomon decoder
10/22/1999CA2261826A1 Digital modulation system using modified orthogonal codes to reduce autocorrelation
10/21/1999WO1999053628A2 Data communication and radio system
10/21/1999WO1999053623A1 Method and apparatus for quantizing a signal in a digital system
10/20/1999EP0950305A1 Apparatus, methods and computer program products for sequential maximum likelihood estimating communications signals using whitening path metrics
10/20/1999EP0950301A1 Transmitter method and transmission system using adaptive coding based on channel characteristics
10/20/1999EP0950300A1 Secondary channel using code violations
10/20/1999EP0864125A4 Data integrity and cross-check code with logical block address
10/20/1999EP0823153A4 High integrity transport for time critical multimedia networking applications
10/20/1999EP0632911B1 Error detector circuit and method for receiver operative to receive discretly-encoded signals
10/20/1999CN1232589A Decoder utilizing soft information output to minimize error rates
10/20/1999CN1232323A Interlacer, coding device, permutation method, coding method, decoding device and method and systems using them
10/19/1999US5970208 Device for controlling memory in digital video disk reproducing device and method therefor
10/19/1999US5970097 Arithmetic apparatus for use in Viterbi decoding
10/19/1999US5970085 Method and receiver for coded satellite digital audio broadcasting
10/19/1999US5970075 Method and apparatus for generating an error location polynomial table
10/19/1999US5969651 Signal modulating method, signal modulating apparatus, signal demodulating method and signal demodulating apparatus
10/19/1999US5968201 Method and apparatus for error correction
10/19/1999US5968200 Implied interleaving a family of systematic interleavers and deinterleavers
10/19/1999US5968199 High performance error control decoder
10/19/1999US5968198 Decoder utilizing soft information output to minimize error rates
10/19/1999US5968149 Tandem operation of input/output data compression modules
10/14/1999WO1999052302A1 Paging method and apparatus with acknowledgement capability
10/14/1999WO1999052217A1 System for tdm broadcast channels with r-1/2 or r-3/4 convolution coding for satellite transmission
10/14/1999WO1999052216A2 Channel encoding/decoding device and method
10/14/1999WO1999044294A3 Signal coding
10/14/1999DE19815825A1 Method of analogue distortion correction and decoding for distorted, frequency-selective message transmission channels
10/14/1999CA2291673A1 Paging method and apparatus with acknowledgement capability
10/13/1999EP0949779A2 Encoding methods and apparatus
10/13/1999EP0664187B1 Grinding tape and method of manufacturing the same
10/13/1999CN1231552A Signal transmitting system for mobile communication network
10/12/1999US5966416 Verification of PN synchronization in a spread-spectrum communications receiver
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