| 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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| 06/16/1998 | US5768294 Memory implemented error detection and correction code capable of detecting errors in fetching data from a wrong address |
| 06/16/1998 | US5768293 Digital transmission and recording system with simple error correction |
| 06/16/1998 | US5768285 Circuit for evaluating bit error rate performance of a data decoder having a viterbi detector |
| 06/16/1998 | US5768269 Apparatus and method for establishing frame synchronization in distributed digital data communication systems |
| 06/11/1998 | WO1998025383A1 Method and apparatus for bidirectional demodulation of digitally modulated signals |
| 06/11/1998 | WO1998025350A1 Shortened fire code error-trapping decoding method and apparatus |
| 06/11/1998 | CA2274101A1 Method and apparatus for bidirectional demodulation of digitally modulated signals |
| 06/10/1998 | EP0847169A2 Communication signal processors and methods compatible with a variety of modulation types |
| 06/10/1998 | EP0847054A2 Optical information reproducing methods and devices |
| 06/10/1998 | EP0846387A1 Trellis coded qam using rate compatible, punctured, convolutional codes |
| 06/10/1998 | EP0846379A1 Communication system using repeated data selection |
| 06/10/1998 | EP0846376A1 Method and apparatus for rate determination in a communication system |
| 06/10/1998 | EP0846374A1 Bit-interleaved rate 16/17 modulation code with three-way byte-interleaved ecc |
| 06/10/1998 | DE19717546A1 Decoding method for CDMA transmission system |
| 06/10/1998 | CN1184537A Method and apparatus for data encoding and communication over noisy media |
| 06/09/1998 | US5764876 Method and device for detecting a cyclic code |
| 06/09/1998 | US5764858 One-dimensional signal processor with optimized solution capability |
| 06/09/1998 | US5764658 Data receiving apparatus and method |
| 06/09/1998 | US5764649 Efficient address generation for convolutional interleaving using a minimal amount of memory |
| 06/09/1998 | US5764554 Method for the implementation of modular reduction according to the Montgomery method |
| 06/09/1998 | CA2124709C Reduced speed equalizer |
| 06/03/1998 | CN1183681A Add-compare-select processor using in Viterbi decoder |
| 06/03/1998 | CN1183678A Method and device for determining thresholds of metric values used in Viterbi synchronization evaluation circuits |
| 06/03/1998 | CN1038621C Adjustable error-correction composite Reed-Solomon encoder/syndrome generator |
| 06/02/1998 | US5761349 Apparatus for reading optical data from a motion picture film and a light source therefor |
| 06/02/1998 | US5761249 Synchronization arrangement for decoder/de-interleaver |
| 06/02/1998 | US5761248 Method and arrangement for determining an adaptive abort criterion in iterative decoding of multi-dimensionally coded information |
| 06/02/1998 | US5761223 Error correcting device |
| 06/02/1998 | US5761219 Error correction for PDF417 and other machine-readable symbologies |
| 06/02/1998 | US5761210 Signal processing apparatus and method |
| 05/28/1998 | WO1998023073A1 Coded modulation for fading channels |
| 05/28/1998 | WO1998023071A1 A programmable loop filter for carrier recovery in a radio receiver |
| 05/28/1998 | WO1998023070A1 Passband dqpsk detector for a digital communications receiver |
| 05/28/1998 | WO1998023069A1 An improved phase detector for carrier recovery in a dqpsk receiver |
| 05/28/1998 | WO1998023042A1 Verification of pn synchronization in a spread-spectrum communications receiver |
| 05/27/1998 | EP0844758A2 Non-equalized digital receiver using block decoding with erasure and error correction |
| 05/27/1998 | EP0844741A2 Error correction device |
| 05/27/1998 | EP0843852A1 Method and apparatus for detecting duplicate entries in a look-up table |
| 05/27/1998 | CN1183179A Slope, drift and offset compensation in zero-if receivers |
| 05/27/1998 | CN1182985A Device utilizing whitebi decoder measuring error rate |
| 05/27/1998 | CN1182932A Error code correction/test decoder |
| 05/27/1998 | CN1182909A Arithmetic equipment |
| 05/26/1998 | US5757863 Apparatus for decoding a signal encoded by using trellis coded modulation |
| 05/26/1998 | US5757834 Device for synchronizing branches of a Viterbi decoder included in a multidimensional trellis coded digital data receiver |
| 05/26/1998 | US5757826 Word-wise processing for reed-solomon codes |
| 05/26/1998 | US5757825 Digital signal processing for controlling error correction based on the state of the control bit |
| 05/26/1998 | US5757824 Code error correction apparatus |
| 05/26/1998 | US5757823 Error detection and correction for four-bit-per-chip memory system |
| 05/26/1998 | US5757822 Bit-interleaved rate 16/17 modulation code with three-way byte-interleaved ECC |
| 05/26/1998 | US5757821 Method and apparatus for detecting communication signals having unequal error protection |
| 05/26/1998 | US5757812 Error correction device for digital video apparatus using a one-bit eraser signal |
| 05/26/1998 | US5757808 Method and device for use with helical scan data recording by implementing a reed-solomon product code, a unitary medium comprising such data, and a cassette comprising such medium |
| 05/26/1998 | US5757802 Audio/video bit stream interleaving method for variable bit rate encoder |
| 05/22/1998 | WO1998021832A1 A receiver, de-interleaving means and a method for a reduced time de-interleaving memory |
| 05/22/1998 | WO1998021829A2 Modified reed solomon code selection and encoding system |
| 05/20/1998 | EP0843444A2 Digital communication system using a trellis based, reduced state estimation method |
| 05/20/1998 | EP0842577A1 Matched spectral null encoder/decoder |
| 05/20/1998 | CN1182509A Method and apparatus for estimating a channel parameter in digital radio frequency communication system |
| 05/19/1998 | US5754973 Methods and apparatus for replacing missing signal information with synthesized information and recording medium therefor |
| 05/19/1998 | US5754599 Method and apparatus for coherent channel estimation in a communication system |
| 05/19/1998 | US5754564 Method of continuous calculation of cyclic redundancy check |
| 05/19/1998 | US5754563 Byte-parallel system for implementing reed-solomon error-correcting codes |
| 05/19/1998 | US5754562 Method and apparatus for encoding certain double-error correcting and triple-error detecting codes |
| 05/19/1998 | CA2100387C Error detection and correction device |
| 05/19/1998 | CA2037219C Electronic circuit for generating error detection codes for digital signals |
| 05/14/1998 | WO1998020696A2 Method and apparatus for compressing and transmitting high speed data |
| 05/14/1998 | WO1998020617A1 Soft decision output decoder for decoding convolutionally encoded codewords |
| 05/14/1998 | DE19647314A1 Fault recognition method for digitally transmitted data |
| 05/13/1998 | EP0840958A1 Data element interleaving/deinterleaving |
| 05/13/1998 | CN1181664A Galois field multiplier for Reed-Solomon decoder |
| 05/13/1998 | CN1181663A Connecting code error correcting coding device |
| 05/13/1998 | CN1181661A Interleave read address generator |
| 05/12/1998 | US5751774 Transmission system for digital audio broadcasting |
| 05/12/1998 | US5751744 Error detection and correction circuit |
| 05/12/1998 | US5751739 Methods of and devices for enhancing communications that use spread spectrum technology |
| 05/12/1998 | US5751734 Decoding method and apparatus using trace deletion for Viterbi algorithm |
| 05/12/1998 | US5751732 Polynomial evaluator for use in a reed-solomon decoder |
| 05/12/1998 | US5751730 Encoding/interleaving method and corresponding deinterleaving/decoding method |
| 05/12/1998 | US5751725 Method and apparatus for determining the rate of received data in a variable rate communication system |
| 05/12/1998 | US5751620 Method for the production of an error correction parameter associated with the implementation of modular operations according to the Montgomery method |
| 05/12/1998 | CA2021744C Fast maximum likelihood decoder |
| 05/06/1998 | EP0840483A2 Soft decision method and receiver |
| 05/06/1998 | EP0840462A2 A method and apparatus for a two-step calculation of CRC-32 |
| 05/06/1998 | EP0840461A2 Galois field multiplier for Reed-Solomon decoder |
| 05/06/1998 | EP0840460A2 Traceback for Viterbi decoder |
| 05/05/1998 | US5748652 Apparatus for detecting and correcting cyclic redundancy check errors |
| 05/05/1998 | US5748650 Digital processor with viterbi process |
| 05/05/1998 | US5748649 System enabling a magnetic code recorded on a magnetic track to be properly decoded in the form of a binary message |
| 05/05/1998 | CA2097059C Viterbi equalizer for radio receiver |
| 04/30/1998 | WO1998018242A1 Method and apparatus for determining the rate of received data in a variable rate communication system |
| 04/30/1998 | WO1998018209A1 Device and method for viterbi decoding |
| 04/30/1998 | CA2219731A1 Soft decision method and receiver |
| 04/30/1998 | CA2199114A1 Galois field multiplier for reed-solomon decoder |
| 04/30/1998 | CA2198579A1 Traceback for viterbi decoder |
| 04/29/1998 | EP0838906A2 Method and device for determining thresholds of metric values used in Viterbi synchronization evaluation circuits |
| 04/29/1998 | EP0838905A2 Reed-Solomon Decoder |
| 04/29/1998 | EP0838115A1 Apparatus for decoding video signals encoded in different formats |
| 04/28/1998 | US5745837 Apparatus and method for digital data transmission over a CATV system using an ATM transport protocol and SCDMA |
| 04/28/1998 | US5745582 Audio signal transmitting apparatus audio signal receiving apparatus and audio signal transmitting and receiving system |
| 04/28/1998 | US5745509 Transmission system via communications protected by an error management code |