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)
10/1992
10/15/1992WO1992017884A1 High efficiency digital data encoding and decoding apparatus
10/15/1992WO1992017844A1 Solid-state ram data storage for virtual memory computer using fixed-size swap pages
10/15/1992WO1992011700A3 Method and apparatus for providing adjustable error correction
10/13/1992US5155734 Error correcting device
10/13/1992US5155487 Cell delineation method and cell delineation circuit
10/13/1992CA1308811C Method and apparatus for implementing a prml code
10/07/1992EP0507444A2 Data transmission apparatus with error computer and maximal likelihood calculator
10/07/1992EP0506761A1 Direct access storage device with independently stored parity
10/06/1992USRE34088 On-the-fly error correction
10/06/1992US5153885 Bit error measuring apparatus
09/1992
09/30/1992EP0506185A1 Multistage decoder
09/30/1992EP0505657A1 Preamble recognition and synchronization detection in partial-response systems
09/29/1992US5151905 Data recording method
09/29/1992US5151904 Reconfigurable, multi-user viterbi decoder
09/29/1992CA1308197C Method and apparatus for combining encoding and modulation
09/28/1992CA2059922A1 Preamble recognition and synchronization detection in partial-response systems
09/23/1992EP0504903A2 Apparatus for and method of preprocessing binary picture data prior to run-length encoding
09/23/1992EP0504779A2 A data recording and/or reproducing apparatus
09/22/1992US5150369 High-speed convolutional decoder
09/22/1992US5150066 Programmable digital signal delay device and its use for a error correction code device
09/22/1992CA1307851C Error correction coding and decoding circuit for digitally coded information
09/22/1992CA1307847C Method of and device for decoding block-coded messages affected by symbol substitutions, insertions and deletions
09/17/1992WO1992016065A1 Error burst detection
09/16/1992EP0503667A2 A CRC operating method and an HEC synchronizing unit in the ATM switching method
09/15/1992US5148432 For providing memory to a computer
09/15/1992US5148431 Speech signal decoding apparatus with error detection and correction
09/14/1992WO1992017011A1 Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system
09/08/1992US5146475 Maximum-liklihood sequence estimation apparatus
08/1992
08/29/1992WO1992016054A1 Signal weighting system for digital receiver
08/27/1992DE4105860A1 Recognition and correction circuitry for faults in RS coded data blocks - has data word forward counter transmitting target value in determining zero position
08/25/1992US5142551 Signal weighting system for digital receiver
08/20/1992WO1992014306A1 Apparatus and methods employing distribution preserving tomlinson precoding in transmission of digital data signals
08/19/1992EP0499395A2 Pointer control system
08/19/1992EP0499365A2 Data processing system and method for encoding and rebuilding data contents of unavailable DASDS
08/19/1992EP0146637B1 Method of detecting error
08/18/1992US5140596 High speed encoder for non-systematic codes
08/18/1992US5140595 Burst mode error detection and definition
08/13/1992WO1992014316A1 Method for the binary coding of points of a constellation used in a multicarrier modulation of the ofdm type
08/13/1992CA2079999A1 Method for the binary coding of points of a constellation used in a multicarrier modulation of the ofdm type
08/12/1992EP0498501A1 Encoding/decoding circuit, and digital video system comprising the circuit
08/11/1992US5138620 Communication control system
08/06/1992WO1992013344A1 Error correction processing device and error correction method
08/06/1992DE4117726A1 Error correction in digital communication or storage system - involves stepwise computation of sets of coeffts. from syndromes of block data multiplication by equality matrix
08/05/1992EP0497593A2 On-the-fly error correction with embedded digital controller
08/05/1992EP0497545A2 Image signal coding device
08/04/1992US5136593 Apparatus and method for fixed delay tree search
08/04/1992US5136592 Error detection and correction system for long burst errors
08/04/1992US5136588 Interleaving method and apparatus
07/1992
07/29/1992EP0496157A2 Apparatus and method for decoding linear algebraic codes
07/29/1992EP0334868B1 Digital signal coding
07/28/1992US5134635 Convolutional decoder using soft-decision decoding with channel state information
07/23/1992CA2057666A1 Modular implementation for a parallelized key equation solver for linear algebraic codes
07/22/1992EP0495642A2 Error detection circuit and method
07/21/1992US5132975 Very high speed error detection network
07/17/1992CA2058684A1 Error detection structure and method using partial polynomial check
07/15/1992EP0494709A2 Signal transmission system
07/15/1992EP0494267A1 Digital optical sound system.
07/14/1992US5130991 Method and apparatus for crc computation
07/14/1992US5130990 VLSI architecture for a Reed-Solomon decoder
07/09/1992WO1992011700A2 Method and apparatus for providing adjustable error correction
07/09/1992WO1992011635A1 Process for digital video display and reproduction by the helical-scannning method
07/07/1992US5128967 Symbol state trellis maximum likelihood detection method
07/07/1992US5128942 Method of and apparatus for transmitting video data
07/01/1992EP0493129A2 Image processing method and apparatus
07/01/1992EP0492419A2 Viterbi decoding system including variable-order equalizer
07/01/1992EP0491868A1 Error detection for fiber distributed interfaced optic link.
06/1992
06/30/1992CA1304467C Encoding apparatus and method for error correction
06/25/1992WO1992010830A1 Methods for speech quantization and error correction
06/24/1992EP0476125A4 Treillis precoding for fractional bits/baud
06/23/1992US5124992 Error correcting encoder/decoder for a digital transmission installation
06/21/1992CA2058102A1 Viterbi decoding system including variable-order equalizer
06/17/1992EP0490552A2 Multiplexed coded modulation with unequal error protection
06/17/1992EP0490239A2 Storage of compressed data on random access storage devices
06/16/1992US5123019 Method for processing binary code words
06/16/1992US5122688 Trinary check trit generator, latch, comparator and multiplexer
06/09/1992US5121397 Method and apparatus for producing order independent signatures for error detection
06/09/1992US5121396 Preservation of crc integrity upon intentional data alteration during message transmission
06/09/1992US5121395 Transmission error protection for TDMA digital channels
06/04/1992DE4038251A1 Max probability receiver e.g. for mobile communications
06/03/1992EP0488456A2 Maximum likelihood receiver
06/02/1992US5119400 Digital transmission system employing a viterbi-like equalizer
05/1992
05/26/1992US5117427 Communication system with concatenated coding error correction
05/22/1992WO1992009953A1 Error detection system
05/20/1992WO1992009144A1 Maximum likelihood decoding method and device thereof
05/20/1992EP0485921A1 Device for the processing of the Viterbi algorithm comprising a processor and a specialized unit
05/20/1992CA2074174A1 Maximum likelihood decoding method and device thereof
05/19/1992US5115453 Technique for designing a multidimensional signaling scheme
05/19/1992US5115436 Forward error correction code system
05/19/1992CA1301353C On-the-fly error correction
05/13/1992EP0485108A2 Coded modulation with unequal levels of error protection
05/13/1992EP0485105A2 Coding for digital transmission
05/13/1992EP0484412A1 Process and device for the decoding of a shortened cyclic binary code using error correction.
05/12/1992US5113400 Error detection system
05/12/1992CA1300711C Data transmission method for interleaved data
05/05/1992US5111483 Trellis decoder
05/05/1992US5111462 Decoders for hamming encoded data
05/05/1992US5111461 Communication control system
04/1992
04/22/1992EP0481752A1 Error correction code encoder and decoder
04/22/1992EP0481549A1 Coding/decoding system and method for digital signals transmitted by coded modulation
04/22/1992EP0481128A1 Data processor system based on an (N, k) symbol code having symbol error correctibility and plural error mendability