| 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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| 10/08/1991 | US5056105 Interleaving method for a digital transmission system |
| 10/02/1991 | EP0449201A1 Method for the sequential decoding of a digital data stream with an error correcting code of the convolutional type |
| 10/02/1991 | EP0448809A2 A bit serial viterbi decoder add/compare/select array |
| 10/01/1991 | US5054036 Digital signal coding |
| 10/01/1991 | US5054025 Method for eliminating errors in block parameters |
| 09/25/1991 | EP0448074A2 Synchronization circuit for ATM cells |
| 09/25/1991 | EP0448045A1 System for suppressing spread of error generated in differential coding |
| 09/25/1991 | EP0337985A4 Computational method and apparatus for finite field multiplication |
| 09/25/1991 | EP0329775A4 High bandwidth reed-solomon encoding, decoding and error correcting circuit |
| 09/24/1991 | US5051999 Programmable error correcting apparatus within a paging receiver |
| 09/24/1991 | CA1289667C Multi-dimensional coding for error reduction |
| 09/18/1991 | EP0447245A2 Bit-serial division method and apparatus |
| 09/18/1991 | EP0446745A2 Viterbi algorithm outputting a plurality of most probable sequences in descending probability order |
| 09/17/1991 | US5050191 Synchronization detector using path metric and branch metric values of a Viterbi decoder |
| 09/17/1991 | CA1289260C Word synchronizer |
| 09/17/1991 | CA1289253C Decoder with reduced synchronization capture time |
| 09/11/1991 | EP0371032A4 Protection of energy information in sub-band coding |
| 09/11/1991 | EP0341256A4 Modem and method using multidimensional coded modulation |
| 09/05/1991 | WO1991013496A1 Error-correcting encoding and decoding system |
| 09/05/1991 | WO1991013437A1 A high speed encoder for non-systematic codes |
| 09/04/1991 | EP0444661A2 Electronic circuit for generating error detection codes for digital signals |
| 09/04/1991 | CN1054342A Encode method for remote-controlled system with langest sequential instructions from linear shift register |
| 09/03/1991 | US5046069 Data integrity securing means |
| 09/03/1991 | US5046037 Multiplier-adder in the Galois fields, and its use in a digital signal processing processor |
| 09/03/1991 | CA1288519C Viterbi decoder with reduced number of data move operations |
| 09/03/1991 | CA1288518C Error-correcting decoder for rapidly dealing with buffer overflow |
| 08/28/1991 | EP0443997A1 A method of reducing the influence of fading of a Viterbi-receiver having at least two antennas |
| 08/28/1991 | EP0443753A1 Method and apparatus for producing order independent signatures for error detection |
| 08/28/1991 | EP0318547A4 Real-time bch error correction code decoding mechanism |
| 08/28/1991 | CN1054156A Method of reducing influence of fading of viterbi receiver having at least two antennas |
| 08/28/1991 | CN1013715B Division operation apparatus for galors field elements |
| 08/22/1991 | WO1991012611A1 Method and apparatus for data interleave with pseudo-randomized resynchronization |
| 08/21/1991 | EP0442320A1 Method and system for error correction in digital transmission |
| 08/21/1991 | EP0441968A1 Analog viterbi decoder |
| 08/20/1991 | US5042037 Digital data modulation circuit having a DC component suppression function |
| 08/20/1991 | US5042036 Process for realizing the Viterbi-algorithm by means of parallel working structures |
| 08/20/1991 | US5042033 RAM-implemented convolutional interleaver |
| 08/13/1991 | US5040179 High data rate BCH encoder |
| 08/07/1991 | EP0439649A1 Device for generating error patterns with soft decision decoding of block codes |
| 08/06/1991 | US5038350 Method and circuit apparatus for data word error detection and correction |
| 08/06/1991 | CA1287408C Error-correcting bit-serial decoder |
| 07/31/1991 | EP0438907A2 Improved error trapping decoding method and apparatus |
| 07/30/1991 | CA1287164C Method for correcting television signals |
| 07/26/1991 | CA2033465A1 Error trapping decoding method and apparatus |
| 07/16/1991 | US5033050 Operation control system |
| 07/10/1991 | EP0436101A2 Maximum-likelihood sequence estimation apparatus |
| 07/09/1991 | US5031181 Error correction processing apparatus |
| 07/03/1991 | EP0435507A2 Interleaving in coded modulation for mobile radio |
| 07/02/1991 | US5029331 Method for editing a convolutional code for transmission and its reconversion at the receiver as well as a device therefor |
| 06/26/1991 | EP0434315A1 Error correction in data storage devices |
| 06/26/1991 | EP0434040A2 Maximum likelihood sequence estimation apparatus |
| 06/25/1991 | US5027374 Bit serial Viterbi decoder add/compare/select array |
| 06/25/1991 | US5027357 ECC/CRC error detection and correction system |
| 06/23/1991 | CA2025307A1 Fading bit error protection for digital cellular multi-pulse speech coder |
| 06/19/1991 | WO1991009364A1 Direct access storage device with independently stored parity |
| 06/19/1991 | CA2070820A1 Direct access storage device with independently stored parity |
| 06/12/1991 | EP0431629A2 Mutual division circuit |
| 06/12/1991 | EP0431576A2 BCH code decoder and method for decoding a BCH code |
| 06/12/1991 | EP0431416A2 Apparatus and method for accessing a cyclic redundancy error check code generated in parallel |
| 06/05/1991 | EP0430428A2 Data symbol estimation |
| 06/05/1991 | CN1051993A Method for generation of parity symbols and circuit design for carrying out this process |
| 06/04/1991 | US5022031 Semiconductor memory comprising an on-chip error correction device, and integrated circuit comprising such a semiconductor memory |
| 05/29/1991 | EP0429220A2 A method for coding a binary data string |
| 05/28/1991 | US5020060 Error code correction device having a galois arithmetic unit |
| 05/21/1991 | US5018147 Bit mask generator |
| 05/15/1991 | EP0426894A1 Method for fast synchronisation with the utilisation of error correcting coding |
| 05/14/1991 | CA1284234C Apparatus including resonant-tunneling device having multiple-peak current-voltage characteristics |
| 05/14/1991 | CA1284228C Byte write error code method and apparatus |
| 05/08/1991 | EP0426657A2 Method and apparatus for decoding error correction code |
| 05/07/1991 | US5014276 Convolutional encoder and sequential decoder with parallel architecture and block coding properties |
| 05/07/1991 | US5014275 Sequential decoder |
| 05/07/1991 | US5014274 Code-error correcting device |
| 05/02/1991 | EP0425458A1 A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method |
| 05/02/1991 | EP0425153A2 Synchronization detector using path metric and branch metric values of a Viterbi decoder |
| 05/02/1991 | DE3934045A1 Secure data transmission with specified Hamming distance - inserting 01 or 10 bit trains on transmit side at positions agreed with receiver |
| 04/25/1991 | WO1991007035A1 A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method |
| 04/23/1991 | US5010558 Data overlap decoder |
| 04/23/1991 | US5010554 Error correction method and apparatus |
| 04/18/1991 | WO1991005335A1 Digital optical sound system |
| 04/17/1991 | EP0422560A1 Method for coding and decoding of binary datas and arrangement for the realization of this method |
| 04/17/1991 | CN1012400B Error correcting method and circuit |
| 03/27/1991 | EP0419432A1 A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
| 03/27/1991 | EP0418885A2 Digital data transmitting apparatus |
| 03/26/1991 | US5003540 Error correction coding and decoding circuit for digitally coded information |
| 03/26/1991 | US5003539 Apparatus and method for encoding and decoding attribute data into error checking symbols of main data |
| 03/20/1991 | WO1991004612A1 A method of generating quality factors for binary digits obtained in the viterbi-analysis of a signal |
| 03/20/1991 | EP0417739A2 Speech coding apparatus using multimode coding |
| 03/20/1991 | CN1050116A Digital transmission system using subband coding of digital signal |
| 03/19/1991 | US5001715 Error location system |
| 03/19/1991 | US5001479 Gray code converter with error signal |
| 03/13/1991 | WO1991004530A1 Error detection for fiber distributed interfaced optic link |
| 03/07/1991 | WO1991003106A1 Process and circuit for producing parity symbols |
| 03/06/1991 | EP0415853A2 Digital data transmission system having error detecting and correcting function |
| 03/05/1991 | US4998253 Syndrome sequential decoder |
| 03/05/1991 | CA1281130C Data transmission method suitable for a disc |
| 03/01/1991 | WO1991003881A1 Analog viterbi decoder |
| 03/01/1991 | CA2039694A1 Analog viterbi decoder |
| 02/28/1991 | DE3927527A1 Verfahren zur erzeugung von paritaetssymbolen und schaltungsanordnung zur durchfuehrung des verfahrens Process for the production of paritaetssymbolen and circuit arrangement for implementing the method |
| 02/27/1991 | EP0414368A2 Method and apparatus for data and forward error correction coding for low DC-offset and short run length |
| 02/27/1991 | EP0413856A1 A decoding method and apparatus for decoding code words that are wordwise protected by a non-binary BCH code against at least one symbol error |