| 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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| 02/27/1991 | EP0216813B1 Data transmission |
| 02/27/1991 | CN1049580A Data and forward error control coding techniques for digital signals |
| 02/20/1991 | EP0413505A1 Generalized viterbi decoding algorithms |
| 02/19/1991 | US4994995 Bit-serial division method and apparatus |
| 02/12/1991 | US4993046 Coded modulation communication system |
| 02/12/1991 | CA1280208C Method of and device for storing and reading digital information, at option protected or not by an error correcting code |
| 02/07/1991 | WO1991001598A1 Process and device for the decoding of a shortened cyclic binary code using error correction |
| 02/06/1991 | EP0411835A2 Decoder apparatus |
| 02/06/1991 | EP0411829A2 Sample data transmission apparatus |
| 02/06/1991 | EP0411110A1 Very high speed error detection network |
| 01/29/1991 | US4989211 For use with an encoder |
| 01/29/1991 | US4989171 Data processing method and apparatus for calculating a multiplicatively inverted element of a finite field |
| 01/23/1991 | EP0409205A2 Viterbi decoder |
| 01/23/1991 | EP0408754A1 Interframe deinterlave switching circuit |
| 01/18/1991 | CA2021072A1 Data and forward error control coding techniques for digital signals |
| 01/16/1991 | EP0408362A2 Error detection code processing device |
| 01/16/1991 | EP0407903A2 TDM information transmission system with a synchronising circuit at the receiver responding the coding of words inserted in the transmitted information |
| 01/16/1991 | CN1011268B Method and system for correcting long continuous burst-error |
| 01/09/1991 | EP0407101A2 Error detection and correction system for long burst errors |
| 01/09/1991 | EP0407066A2 Fault tolerant memory |
| 01/06/1991 | CA2019351A1 Fault tolerant memory |
| 01/02/1991 | EP0405804A1 Erasure arrangement for an error correction decoder |
| 01/02/1991 | EP0405673A1 Device for buffering data for the duration of cyclically recurrent buffer periods |
| 01/02/1991 | EP0405099A2 Method and apparatus for providing error correction to symbol level codes |
| 12/28/1990 | CA2016847A1 Error detection and correction systems for long burst errors |
| 12/26/1990 | CA2013484A1 Erasure arrangement for an error correction decoder |
| 12/18/1990 | US4979175 State metric memory arrangement for a viterbi decoder |
| 12/18/1990 | US4979174 Error correction and detection apparatus and method |
| 12/18/1990 | US4979173 Burst mode error detection and definition |
| 12/18/1990 | US4978955 Data randomizing/de-randomizing circuit for randomizing and de-randomizing data |
| 12/12/1990 | EP0402115A2 Error detection and correction device |
| 12/05/1990 | EP0400755A1 Digital transmission system using subband coding of a digital signal |
| 12/05/1990 | EP0400734A1 Programmable binary signal delay device and application to an error correcting code device |
| 12/05/1990 | EP0400222A1 Digital transmission system using subband coding of a digital signal |
| 12/04/1990 | US4975867 Apparatus for dividing elements of a Galois Field GF (2QM) |
| 11/27/1990 | USRE33462 Method and apparatus for transmitting digital data |
| 11/22/1990 | EP0398690A2 Circuitry implementing the Viterbi algorithm |
| 11/22/1990 | EP0397968A2 Speech codec |
| 11/20/1990 | US4972416 Error detection and correction method |
| 11/20/1990 | CA1276726C Error correcting coder/decoder |
| 11/14/1990 | EP0397537A2 Mapping digital data sequences for data transmission |
| 11/14/1990 | EP0397536A2 Apparatus for generating sequences of digital signals |
| 11/14/1990 | EP0397385A2 Error correction method and apparatus |
| 11/12/1990 | CA2014867A1 Generalized partial response channel signaling systems |
| 11/07/1990 | EP0396346A1 Error check or error correction code coding device |
| 11/07/1990 | EP0395689A1 Soft decision reed-solomon decoder |
| 11/06/1990 | CA1276043C Galois field arithmetic logic unit |
| 10/30/1990 | CA1275739C Error correction method |
| 10/24/1990 | EP0393646A2 Method of and apparatus for transmitting video data |
| 10/23/1990 | US4965883 Method and apparatus for transmitting and receiving characters using a balanced weight error correcting code |
| 10/23/1990 | US4965576 Error correcting system capable of effectively using an allowable frequency band |
| 10/17/1990 | EP0392603A2 Transmission system |
| 10/17/1990 | EP0392538A2 Quadrature amplitude modulation communication system with transparent error correction |
| 10/16/1990 | US4964128 Data transmission method for interleaved data |
| 10/16/1990 | US4964127 Data validity checking means |
| 10/16/1990 | US4963968 Method and apparatus for validating teletext data |
| 10/10/1990 | EP0391354A2 Method of generalizing the Viterbi-algorithm and apparatus to carry out the method |
| 10/03/1990 | CN1009892B Error detection and concealment using predicted signal values |
| 10/02/1990 | US4961204 PCM signal generating/reproducing apparatus |
| 10/02/1990 | US4961193 Extended errors correcting device having single package error correcting and double package error detecting codes |
| 10/02/1990 | US4961192 Data error detection and correction |
| 09/26/1990 | EP0388842A1 Search method and device for the synchronisation of received frames in digital transmission |
| 09/25/1990 | CA1274627A1 Data converter |
| 09/20/1990 | WO1990010905A1 Programmable error correcting apparatus within a paging receiver |
| 09/19/1990 | EP0387924A2 Method and apparatus for decoding error correction code |
| 09/19/1990 | CN1009699B Encoding and decoding method |
| 09/18/1990 | US4958350 Error detecting/correction code and apparatus |
| 09/18/1990 | US4958349 Apparatus for decoding in linear error correcting code |
| 09/18/1990 | US4958348 Hypersystolic Reed-Solomon decoder |
| 09/12/1990 | EP0386506A2 Low cost symbol error correction coding and decoding |
| 09/07/1990 | WO1990010265A1 Very high speed error detection network |
| 09/05/1990 | EP0385214A1 Error correcting coder/decoder for numerical transmission device |
| 09/04/1990 | US4955022 Encoding apparatus and method for error correction |
| 08/28/1990 | US4953022 Teletext decoders |
| 08/23/1990 | WO1990009705A1 Adaptive data compression apparatus for a tape drive system |
| 08/22/1990 | EP0383632A2 Mapping digital data sequences |
| 08/21/1990 | US4951284 Method and means for correcting random and burst errors |
| 08/16/1990 | CA2010134A1 Very high speed error detection network |
| 08/14/1990 | US4949342 Code error detecting method |
| 08/01/1990 | EP0379625A1 Method for the treatment of parity-controllable binary code words which undergo a digital damping and/or code conversion during their transmission |
| 08/01/1990 | CN1009047B High speed error-correcting decoding system for cross-inserted reed-solomon code |
| 07/31/1990 | US4945538 Method and apparatus for processing sample values in a coded signal processing channel |
| 07/31/1990 | CA1272290A1 Viterbi decoder and method for testing the viterbi decoder |
| 07/24/1990 | US4943965 Digital signal decoding method and circuit therefor |
| 07/10/1990 | US4941154 Trellis coding method and arrangement for fractional bit rates |
| 07/03/1990 | US4939741 Communication control system |
| 07/03/1990 | US4939734 Method and a system for coding and decoding data for transmission |
| 07/03/1990 | US4939733 Syndrome generator for Hamming code and method for generating syndrome for Hamming code |
| 06/26/1990 | US4937829 Error correcting system and device |
| 06/26/1990 | US4937828 High speed parallel CRC device for concatenated data frames |
| 06/20/1990 | EP0373764A2 Correction of random and burst errors |
| 06/12/1990 | US4933956 Simplified decoding of lattices and codes |
| 06/06/1990 | EP0371035A1 Method for error correction in digitally encoded speech |
| 06/06/1990 | EP0371032A1 Protection of energy information in sub-band coding |
| 06/06/1990 | CN1008316B Decoding method and system for error correcting codes |
| 06/05/1990 | US4932029 Method and apparatus for correcting errors in convolutional code signals |
| 05/30/1990 | EP0370444A1 Interleaving method for a digital transmission device |
| 05/30/1990 | EP0370442A1 Method for the establishment of an inverted pilot sequence for a de-interleaving used in a digital transmission |
| 05/29/1990 | US4929946 Adaptive data compression apparatus including run length encoding for a tape drive system |
| 05/23/1990 | EP0369962A2 Method for processing signals in a channel |