| Patents for H04L 23 - Apparatus or local circuits for systems other than those covered by groups (1,371) |
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| 05/06/1986 | US4587514 Interface method and apparatus |
| 03/04/1986 | US4574382 Variable length character code system |
| 02/25/1986 | US4573074 Coding and decoding method and system for variable-length sequences of digital data |
| 02/18/1986 | CA1200845A1 Impulse autocorrelation function communications system |
| 01/29/1986 | EP0169338A2 On-the-fly data compression system |
| 12/10/1985 | US4558302 High speed data compression and decompression apparatus and method |
| 11/13/1985 | EP0160672A1 Method and apparatus for data compression |
| 10/02/1985 | EP0155980A2 Digital data compression method and means |
| 09/17/1985 | US4542515 Multilevel mate pair code compressor for codes expanded by the process of butting |
| 07/02/1985 | US4527275 Correlation data communications system |
| 05/28/1985 | CA1187960A1 Communication over noisy lines |
| 05/14/1985 | US4517679 Line network communication system |
| 04/25/1985 | WO1985001814A1 Method and apparatus for data compression |
| 04/24/1985 | EP0138080A2 Communication system using variable length character code and coding method |
| 04/16/1985 | US4512024 Impulse autocorrelation function communications system |
| 04/16/1985 | US4511758 Reduction of message length in a communication system |
| 02/19/1985 | US4500871 Method for coding binary data and a device decoding coded data |
| 12/27/1984 | EP0129439A1 High speed data compression and decompression apparatus and method |
| 11/13/1984 | US4482886 Apparatus for converting digital signals of first length code into second length codes |
| 10/16/1984 | US4477912 Correlation data communications system |
| 10/16/1984 | CA1176320A1 Signal wave control circuit |
| 09/25/1984 | CA1175138A1 Dynamic stack data compression and decompression system |
| 07/31/1984 | US4463342 Method and means for carry-over control in the high order to low order pairwise combining of digits of a decodable set of relatively shifted finite number strings |
| 07/18/1984 | EP0113446A2 Encoder and decoder of variable-length messages for data transmission systems |
| 07/10/1984 | CA1170772A1 Method and device for encoding binary data |
| 07/04/1984 | EP0112429A1 System for the transmission of data by repetitive sequences |
| 03/14/1984 | EP0102918A2 Correlation data communications system |
| 11/29/1983 | US4418406 Signal wave control circuit |
| 10/04/1983 | CA1154873A1 Method and apparatus for reducing dc components in a digital information signal |
| 09/14/1983 | EP0088564A2 Improvements relating to communication over noisy lines |
| 09/06/1983 | US4403331 Method and apparatus for transmitting data over limited bandwidth channels |
| 08/02/1983 | CA1151326A1 Mechanism for synchronization of data ports in tdma communication |
| 07/19/1983 | US4394641 Method and device for coding binary data and a device decoding coded data |
| 07/13/1983 | EP0083393A2 Method of compressing information and an apparatus for compressing English text |
| 06/21/1983 | CA1148659A1 Code converting circuits |
| 06/07/1983 | US4387364 Method and apparatus for reducing DC components in a digital information signal |
| 05/25/1983 | EP0079442A2 Data translation apparatus translating between raw and compression encoded data forms |
| 10/19/1982 | US4355310 Well logging communication system |
| 10/19/1982 | US4355306 Dynamic stack data compression and decompression system |
| 08/11/1982 | EP0057274A2 Digital image data compression apparatus |
| 03/16/1982 | US4320504 Mechanism for synchronization of data ports in TDMA communication |
| 03/16/1982 | CA1120146A1 Hermetic and non-hermetic packaging of devices |
| 01/19/1982 | US4312018 Demodulator in a facsimile system |
| 12/01/1981 | CA1113402A1 Apparatus and method for encoding halftone and line copy data |
| 08/11/1981 | CA1106975A1 Markov processor for context encoding from given characters and for character decoding from given contexts |
| 07/28/1981 | CA1106022A1 Well logging communication system |
| 06/30/1981 | US4276544 Code converting circuits |
| 05/26/1981 | US4270207 Combined ECCM/diversity tropospheric transmission system |
| 04/08/1981 | EP0026699A1 Method and device for coding digital data, device for decoding digital data and a transmission system comprising such a device |
| 02/04/1981 | EP0023274A1 Device for transmitting additional information at an unchanged clock rate in a transmission system and method of operating said device |
| 01/07/1981 | EP0021283A1 Digital data apparatus |
| 04/15/1980 | CA1075817A1 Sequential encoding and decoding of variable word length fixed rate data codes |
| 07/31/1979 | CA1059636A1 Apparatus and method employing modified zero modulation data code |
| 05/29/1979 | CA1055611A1 Uniform decoding of minimum-redundancy codes |
| 05/01/1979 | US4152582 Compaction/expansion logic |
| 04/03/1979 | CA1051995A1 Intrinsic safety barrier |
| 03/13/1979 | US4144547 Apparatus and method for encoding halftone and line copy data |
| 02/20/1979 | US4140872 Control system for functional sequences |
| 02/13/1979 | US4139902 Hyphenation controller |
| 09/19/1978 | US4115768 Sequential encoding and decoding of variable word length, fixed rate data codes |
| 07/04/1978 | US4099257 Markov processor for context encoding from given characters and for character decoding from given contexts |
| 08/23/1977 | US4044347 Variable-length to fixed-length conversion of minimum-redundancy codes |
| 07/26/1977 | US4038652 Digital communications line terminal compacter/expander |
| 06/28/1977 | US4032913 Coding equipment providing compressed code |
| 06/14/1977 | US4030033 Method and apparatus for transmitting messages to and from remote locations |
| 01/04/1977 | US4001811 Method and apparatus for coding and decoding digital information |
| 01/04/1977 | US4001564 Communication system for disseminating coded digital data in analogue form utilizing an orthogonal transformation |
| 01/04/1977 | US4001563 Communication system for disseminating coded digital data in analogue form utilizing an orthogonal transformation |
| 11/30/1976 | US3995264 Apparatus for encoding and decoding binary data in a modified zero modulation data code |
| 08/03/1976 | US3973170 Intrinsic safety barrier |
| 03/30/1976 | US3947674 Code generator to produce permutations of code mates |