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| More topics under "H03M - Coding, decoding or code conversion, in general" (119,298) |
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| H03M 1 - Analogue/digital conversion; Digital/analogue conversion (31,168) | | H03M 11 - Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys (4,545) | | 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) | | H03M 3 - Conversion of analogue values to or from differential modulation (7,070) | | H03M 5 - Conversion of the form of the representation of individual digits (4,193) | | 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) | | H03M 9 - Parallel/series conversion or vice versa (1,657) | | H03M 99 - Subject matter not provided for in other groups of this subclass (30) |
| Patents for H03M - Coding, decoding or code conversion, in general (416) |
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| 07/05/1994 | US5327519 Pulse pattern excited linear prediction voice coder | | 03/29/1994 | US5299281 Method and apparatus for converting a digital speech signal into linear prediction coding parameters and control code signals and retrieving the digital speech signal therefrom | | 11/18/1993 | EP0570171A1 Digital coding of speech signals | | 11/25/1992 | EP0515138A2 Digital speech coder | | 10/14/1992 | EP0284627B1 Digital audio companding and error conditioning | | 07/29/1992 | EP0334868B1 Digital signal coding | | 04/28/1992 | CA1299751C Digital audio companding and error conditioning | | 10/16/1991 | CN1055453A Third order sigma delta oversampled analog-to-digital converter network with low component sensitivity | | 10/01/1991 | US5054036 Digital signal coding | | 03/27/1991 | EP0418958A2 Method and device for converting an analog input signal into control codes and for synthesizing a corresponding output signal under the control of those control codes | | 03/01/1991 | CA2021749A1 Bi-phase code generation and amplification circuit for microwave and millimeter-wave frequencies | | 08/22/1990 | EP0179056B1 Extended threshold analog to digital conversion apparatus for an rf receiver | | 10/04/1989 | EP0334868A1 Digital signal coding. | | 02/28/1989 | US4809274 System for processing audio signals | | 06/16/1988 | WO1988004500A1 Digital signal coding | | 04/30/1986 | EP0179056A1 Extended threshold analog to digital conversion apparatus for an rf receiver. |
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