| 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) |
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| 04/22/1992 | CN1016386B Method for transmitting digital data |
| 04/21/1992 | US5107506 Error trapping decoding method and apparatus |
| 04/21/1992 | US5107505 Circuit of encoding and formatting data for rotating head recorders |
| 04/21/1992 | US5107503 High bandwidth reed-solomon encoding, decoding and error correcting circuit |
| 04/16/1992 | WO1992006429A1 Reconfigurable, multi-user viterbi decoder |
| 04/15/1992 | EP0480621A2 Apparatus and method for parallel generation of cyclic redundancy check (CRC) codes |
| 04/15/1992 | EP0480506A1 TDM - information transmission system with a variable structure |
| 04/15/1992 | EP0188192B1 Extended error correction for package error correction codes |
| 04/14/1992 | US5105442 Coded modulation with unequal error protection |
| 04/10/1992 | CA2052906A1 System for modulating/demodulating digital signals transmitted with encoded modulation |
| 04/07/1992 | US5103451 Parallel cyclic redundancy check circuit |
| 04/01/1992 | EP0477377A1 Error detecting system |
| 04/01/1992 | EP0371035A4 Method for error correction in digitally encoded speech |
| 03/25/1992 | EP0476741A2 Miscorrection arrangement for the concealment of misdetected or miscorrected digital signals |
| 03/25/1992 | EP0476125A1 Treillis precoding for fractional bits/baud |
| 03/25/1992 | CN1016010B Byte write error code method and apparatus |
| 03/24/1992 | US5099499 Method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
| 03/24/1992 | US5099484 Multiple bit error detection and correction system employing a modified Reed-Solomon code incorporating address parity and catastrophic failure detection |
| 03/24/1992 | US5099483 Device for correcting errors by a long-distance code |
| 03/24/1992 | US5099482 Apparatus for detecting uncorrectable error patterns when using Euclid's algorithm to decode Reed-Solomon (BCH) codes |
| 03/18/1992 | EP0475464A2 Block coded modulation system |
| 03/17/1992 | US5097507 Fading bit error protection for digital cellular multi-pulse speech coder |
| 03/17/1992 | US5097333 Interframe deinterleave switching circuit |
| 03/17/1992 | CA1297590C Data processing device composed of four data processing modules of substantially identical construction, with protection both against simultaneous single-bit failures in a plurality of data processing modules and against failure of a _ingledata processing module |
| 03/12/1992 | DE4027496A1 Data spreading for coded digital information transmission system - using similar matrix at transmission and reception ends with line write-in and column read=out |
| 03/10/1992 | US5095494 Data transmission apparatus |
| 03/10/1992 | US5095484 Phase invariant rate 8/10 matched spectral null code for PRML |
| 03/10/1992 | US5095392 Digital signal magnetic recording/reproducing apparatus using multi-level QAM modulation and maximum likelihood decoding |
| 03/10/1992 | CA1297192C Error disbursing format for digital information and method for organizing same |
| 03/10/1992 | CA1297159C Coded modulation communication system |
| 03/05/1992 | WO1992003879A1 Method of recovering lost bits in digital transmission |
| 03/04/1992 | EP0473404A2 Apparatus for maximising throughput of data in a data processing circuit |
| 03/03/1992 | US5093831 Fast calculation circuit for cyclic redundancy check code |
| 02/26/1992 | EP0472415A2 Error correction encoding apparatus |
| 02/26/1992 | EP0472175A2 Bit error ratio detector |
| 02/26/1992 | CN1059042A Operational method and apparatus over gf(2m) using subfield gf(2m/2) |
| 02/25/1992 | US5091918 Equalizers |
| 02/19/1992 | EP0471580A2 Concealing method of video signal |
| 02/19/1992 | EP0471085A1 Error-correcting encoding and decoding method and system using a product code and a superimposed code |
| 02/18/1992 | CA1296102C Coding and decoding method |
| 02/18/1992 | CA1296065C Method for decoding error correcting block codes |
| 02/17/1992 | CA2049243A1 Error detection encoding system |
| 02/12/1992 | EP0470451A2 Implementation of the high-level data link control cyclic redundancy check (HDLC CRC) calculation |
| 02/11/1992 | US5088113 Diversity coded modulation |
| 02/11/1992 | CA1295745C Method and apparatus for error correction |
| 02/11/1992 | CA1295744C Error correction method using reed-solomon code |
| 02/11/1992 | CA1295741C Modem and method using multidimensional coded modulation |
| 02/05/1992 | EP0469131A1 A high speed encoder for non-systematic codes |
| 02/04/1992 | CA1295432C Method and a system for coding and decoding data for transmission |
| 01/28/1992 | US5084891 Technique for jointly performing bit synchronization and error detection in a TDM/TDMA system |
| 01/22/1992 | EP0467522A2 Maximum likelihood sequence detector |
| 01/15/1992 | EP0465782A1 Convolutionally-encoded quadrature frequency-modulation system |
| 01/15/1992 | EP0146632B1 Majority circuit |
| 01/14/1992 | WO1992001252A1 Error protection for vlc coded data |
| 01/14/1992 | US5081651 Maximum likelihood sequence estimation apparatus |
| 01/08/1992 | EP0465428A2 Digital modulated signal demodulator/decoder apparatus |
| 01/08/1992 | EP0465144A2 Method and apparatus for interleaving symbols in a cellular transmission channel |
| 01/08/1992 | EP0465006A1 A method for generating a checksum |
| 01/08/1992 | EP0328637A4 Apparatus for computing multiplicative inverses in data encoding decoding devices |
| 01/07/1992 | US5079771 Bit and symbol timing recovery for sequential decoders |
| 01/02/1992 | EP0463598A1 Convultional code decoding circuit performing the viterbi algorithm step of memorisation and backtracing of the surviving paths |
| 12/31/1991 | US5077743 System and method for decoding of convolutionally encoded data |
| 12/30/1991 | CA2045930A1 Method for generating a checksum |
| 12/30/1991 | CA2044051A1 System and method for error detection and reducing simultaneous switching noise |
| 12/26/1991 | WO1991020028A1 Universal galois field multiplier |
| 12/17/1991 | US5073940 Method for protecting multi-pulse coders from fading and random pattern bit errors |
| 12/17/1991 | CA1293327C Method of and device for decoding a block of code symbols which is distributed between code words in two ways, each code word being protected by a maximum distance separable code |
| 12/10/1991 | US5072378 Direct access storage device with independently stored parity |
| 12/04/1991 | EP0229112B1 Ic chip error detecting and correcting with automatic self-checkingand method therefor |
| 12/03/1991 | US5070504 Method and apparatus for providing error correction to symbol level codes |
| 11/27/1991 | EP0458468A1 A multi-level error correction system |
| 11/27/1991 | EP0458285A1 Error location and error pattern calculation circuit |
| 11/27/1991 | EP0458229A1 Viterbi decoder |
| 11/26/1991 | US5068878 Method and apparatus for data interleave with pseudo-randomized resynchronization |
| 11/26/1991 | US5068859 Large constraint length high speed viterbi decoder based on a modular hierarchial decomposition of the deBruijn graph |
| 11/26/1991 | US5068858 Error correction capability varied with track location on a magnetic or optical disk |
| 11/26/1991 | US5068857 Error correction circuit |
| 11/26/1991 | US5068856 Method and circuit for detecting data error |
| 11/26/1991 | US5068855 Error correcting method and apparatus |
| 11/26/1991 | US5068854 Error detection for fiber distributed interfaced optic link |
| 11/21/1991 | EP0456975A2 Reliability test of results from threshold decoder in linear feedback sequence detector |
| 11/21/1991 | EP0263175A4 Apparatus and method for encoding and decoding attribute data into error checking symbols of main data |
| 11/14/1991 | WO1991017503A1 Forward error correction code system |
| 11/13/1991 | EP0455992A2 Electronic device for parallel correction of data streams protected with error detection by cyclic redundancy check |
| 11/13/1991 | EP0364475A4 Multiple pass error correction process and apparatus for product codes |
| 11/10/1991 | CA2041214A1 Multi-level error correction system |
| 11/06/1991 | EP0232417B1 Process for correcting transmission errors |
| 11/05/1991 | US5063533 Reconfigurable deinterleaver/interleaver for block oriented data |
| 11/05/1991 | CA1291819C Decoder |
| 10/29/1991 | US5062111 Error check code generating device and transmission error detecting device |
| 10/23/1991 | EP0453081A1 Information signal processing method and apparatus |
| 10/17/1991 | WO1991015901A1 Error detecting system |
| 10/17/1991 | WO1991015900A1 Trellis precoding for fractional bits/baud |
| 10/16/1991 | EP0452064A2 Apparatus for detecting digital data |
| 10/16/1991 | EP0451646A2 Circuit device for correction of double errors and detection of triple errors |
| 10/11/1991 | WO1991015926A1 Data alignment |
| 10/11/1991 | CA2079475A1 Data alignment |
| 10/09/1991 | EP0450148A2 Decoding circuit for inhibiting error propagation |
| 10/09/1991 | EP0344213A4 Viterbi decoder with reduced number of data move operations |
| 10/08/1991 | US5056112 Interleaving in coded modulation for mobile radio |