| Patents for H03M 7 - Conversion of a code where information is represented by a given sequence or number of digits to a code where the same information is represented by a different sequence or number of digits (33,242) |
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| 03/11/1981 | EP0024894A1 Decoder circuit |
| 02/03/1981 | CA1095166A1 Device for transmitting digital information |
| 01/27/1981 | US4247921 Decoder |
| 01/21/1981 | EP0022713A1 Device for coding and decoding a digital videophone signal |
| 01/13/1981 | US4245328 Binary coded decimal correction apparatus for use in an arithmetic unit of a data processing unit |
| 01/13/1981 | CA1093697A1 Digital-to-analogue converter |
| 01/07/1981 | EP0021283A1 Digital data apparatus |
| 01/06/1981 | US4243977 Delta sigma to PCM converter |
| 01/06/1981 | CA1093211A1 Tandem block digital processor for use with nonuniformly encoded digital data |
| 12/23/1980 | US4241414 Binary adder employing a plurality of levels of individually programmed PROMS |
| 12/16/1980 | CA1152182B Dc-free encoding for data transmission system |
| 12/02/1980 | US4237496 Device for coding/decoding data for a medium |
| 12/02/1980 | CA1152181B Decoding apparatus and method for d.c. free data transmission system |
| 11/26/1980 | EP0019261A1 Adjustable attenuator for a digital telecommunication exchange, especially a telephone exchange |
| 11/18/1980 | US4234897 DC Free encoding for data transmission |
| 11/18/1980 | US4234761 Method of communicating digital speech data and a memory for storing such data |
| 11/18/1980 | CA1089993A1 Apparatus and method for generating a data code with a spectral null |
| 11/18/1980 | CA1089770A1 Methods of a coarse-scan/fine-print character reproduction with compression |
| 11/12/1980 | EP0018739A2 A decoder circuit for a semiconductor memory device |
| 11/11/1980 | CA1089569A1 Binary multiplier circuit including coding circuit |
| 11/04/1980 | US4232375 Data compression system and apparatus |
| 10/29/1980 | EP0017688A1 Monolithic integrated circuit |
| 10/28/1980 | US4231023 Binary to ternary converter |
| 10/14/1980 | US4228467 Reduced redundancy facsimile transmission installation |
| 10/09/1980 | EP0016050A4 Apparatus and method for compressing data. |
| 10/07/1980 | US4227204 Method and apparatus for PCM-encoding NTSC color television at sub-Nyquist rate |
| 10/01/1980 | EP0016050A1 Apparatus and method for compressing data. |
| 09/30/1980 | US4225885 Method and apparatus for adaptive transform coding of picture signals |
| 09/09/1980 | CA1085526A1 Complex character generator |
| 09/09/1980 | CA1085510A1 Compressed refresh buffer |
| 09/02/1980 | CA1152164B Dc free encoding for data transmission system |
| 09/02/1980 | CA1085000A1 Dc free encoding for data transmission system |
| 08/26/1980 | US4219890 Digital signal regulation system |
| 08/26/1980 | US4219851 Group coded recording data recovery system |
| 08/19/1980 | US4218761 Magnetic bubble domain decoder organization |
| 08/12/1980 | CA1083717A1 Signal coding for telephone communication system |
| 08/05/1980 | US4216460 Transmission and/or recording of digital signals |
| 08/05/1980 | US4216354 Process for compressing data relative to voice signals and device applying said process |
| 08/05/1980 | CA1083260A1 Analog to digital converter |
| 07/15/1980 | CA1081790A1 Transmission system with a transmitter and a receiver for signal transmission by means of discrete output values which characterize the tansmitted signqls in time quantizationaand an at least trivalent amplitude quantization |
| 07/08/1980 | US4212036 Method for coding addresses of information change picture elements in facsimile signal |
| 06/24/1980 | US4209773 Code converters |
| 06/24/1980 | US4209771 Code converting method and system |
| 06/24/1980 | CA1080366A1 First in - first out memory array containing special bits for replacement addressing |
| 06/10/1980 | US4207599 Run length encoding and decoding process and apparatus |
| 06/03/1980 | US4206447 Adaptive quantizer apparatus for differential coding of nonuniform digital signals |
| 05/27/1980 | US4205200 Digital communications system utilizing controllable field size |
| 05/20/1980 | US4204163 Minimum group pulse code modem having shape and amplitude codes |
| 05/20/1980 | US4204090 Process and an arrangement for reducing the redundancy of binary character sequences which describe characters or graphic patterns |
| 05/06/1980 | US4201909 Data-transmission system and method using fiber-optical transmission |
| 04/29/1980 | US4200917 Quiet column decoder |
| 04/29/1980 | US4200886 Method for transmitting video signals with the aid of DPC modulation and controlled quantizer |
| 04/29/1980 | CA1076703A1 Digital speech communication system |
| 04/15/1980 | US4198700 Column decode circuit for random access memory |
| 04/15/1980 | US4198577 Loop decoder for Josephson memory arrays |
| 04/15/1980 | CA1075818A1 Binary to modulo m translation |
| 04/15/1980 | CA1075817A1 Sequential encoding and decoding of variable word length fixed rate data codes |
| 03/18/1980 | CA1074016A1 Data expansion apparatus |
| 03/04/1980 | US4192010 Data reduction system |
| 03/04/1980 | US4191858 Block digital processing system for nonuniformly encoded digital words |
| 02/26/1980 | US4190897 Binary coded decimal addressed Read-Only-Memory |
| 02/26/1980 | US4190893 Modular modulo 3 module |
| 02/19/1980 | US4189756 Apparatus for generating bi-phase coded characters |
| 02/19/1980 | US4189715 μ-Law to floating point converter |
| 02/12/1980 | US4188669 Decoder for variable-length codes |
| 02/06/1980 | EP0007754A1 Decoder and method of decoding |
| 02/05/1980 | CA1071332A1 Data processing system |
| 01/29/1980 | US4186375 Magnetic storage systems for coded numerical data with reversible transcoding into high density bipolar code of order n |
| 01/29/1980 | US4186272 Code generator |
| 01/24/1980 | WO1980000107A1 Apparatus and method for compressing data |
| 01/22/1980 | US4185320 Decoder circuit |
| 01/22/1980 | US4185190 Data accumulation and compression apparatus |
| 01/01/1980 | US4181973 Complex character generator |
| 12/25/1979 | CA1068822A Digital to analog converter for a communication system |
| 12/11/1979 | CA1068007A1 Automatic terminal data rate selection |
| 12/04/1979 | US4177456 Decoder for variable-length codes |
| 12/04/1979 | US4177455 Electrically configurable high-low decoder |
| 12/04/1979 | CA1067621A1 Apparatus and method for composing information on a data bus |
| 11/27/1979 | US4176342 Electrical control systems for transmitting signals of different magnitudes |
| 11/27/1979 | US4176287 Versatile CMOS decoder |
| 10/23/1979 | CA1065069A1 Signal coding for telephone communication system |
| 10/16/1979 | CA1064618A1 Compression of gray scale imagery to less than one bit per picture element |
| 10/02/1979 | CA1063719A1 Phase locked loop decoder |
| 09/18/1979 | US4168513 Regenerative decoding of binary data using minimum redundancy codes |
| 09/18/1979 | US4168469 Digital data communication adapter |
| 09/11/1979 | US4167731 Integrating code converter |
| 08/21/1979 | US4165504 CMOS Decoder |
| 08/07/1979 | US4163967 Reversible code compressor |
| 07/31/1979 | US4163287 Binary multiplier circuit including coding circuit |
| 07/31/1979 | CA1059637A1 Apparatus for cross-array correlation and compression coding between two-dimensional matrices derived from two-valued picture points |
| 07/31/1979 | CA1059636A1 Apparatus and method employing modified zero modulation data code |
| 07/26/1979 | WO1979000462A1 A method and an arrangement for reducing the demand on the number of transferred bits when transferring pcm information |
| 07/17/1979 | US4161627 Method of and system for generating digital test signals |
| 07/17/1979 | CA1058754A1 Minimum pitch mosfet decoder circuit configuration |
| 07/11/1979 | EP0002998A1 Method and system for speech data compression |
| 06/12/1979 | US4158199 Decoder for identification of bacteria |
| 06/12/1979 | CA1056506A1 Decoding circuit for variable length codes |
| 05/29/1979 | US4156938 MOSFET Memory chip with single decoder and bi-level interconnect lines |
| 05/29/1979 | CA1055612A1 Zero suppression in pulse transmission systems |
| 05/29/1979 | CA1055611A1 Uniform decoding of minimum-redundancy codes |