| Patents for G10L 25 - Speech or voice analysis techniques not restricted to a single one of groups (4,910) |
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| 04/17/1990 | US4918735 Speech recognition apparatus for recognizing the category of an input speech pattern |
| 01/23/1990 | US4896358 Method and apparatus of rejecting false hypotheses in automatic speech recognizer systems |
| 12/20/1989 | EP0347338A2 Method and apparatus for speech analysis, synthesis and coding |
| 12/20/1989 | EP0347307A2 Coding method and linear prediction speech coder |
| 12/19/1989 | US4888806 Computer speech system |
| 11/23/1989 | EP0342687A2 Coded speech communication system having code books for synthesizing small-amplitude components |
| 11/07/1989 | US4879748 Parallel processing pitch detector |
| 10/18/1989 | EP0337868A2 Method and apparatus for signal discrimination |
| 10/04/1989 | EP0335521A1 Voice activity detection |
| 09/27/1989 | EP0334023A2 Method for speech signals detection |
| 09/21/1989 | WO1989008910A1 Voice activity detection |
| 09/20/1989 | EP0333121A2 Voice coding apparatus |
| 09/05/1989 | US4864620 Method for performing time-scale modification of speech information or speech signals |
| 08/22/1989 | US4860360 Method of evaluating speech |
| 07/25/1989 | US4852181 Speech recognition for recognizing the catagory of an input speech pattern |
| 07/04/1989 | US4845753 Pitch detecting device |
| 04/20/1989 | WO1989003519A1 Speech processing apparatus and methods for processing burst-friction sounds |
| 04/13/1989 | DE3732096A1 Algorithm for estimating the voice-band fundamental frequency of digitised speech signals with a criterion for voiced/voiceless discrimination |
| 04/12/1989 | EP0310636A1 Distance measurement control of a multiple detector system. |
| 03/29/1989 | EP0308433A1 An adaptive multivariate estimating apparatus. |
| 02/28/1989 | US4809334 Method for detection and correction of errors in speech pitch period estimates |
| 01/31/1989 | US4802225 Analysis of non-sinusoidal waveforms |
| 11/16/1988 | EP0186671A4 Adaptive speech detector system. |
| 11/09/1988 | CN88102086A Sound synthesizing method and apparatus |
| 11/08/1988 | US4783807 System and method for sound recognition with feature selection synchronized to voice pitch |
| 11/08/1988 | US4783805 System for converting a voice signal to a pitch signal |
| 10/19/1988 | EP0287104A1 Sound synthesizing method and apparatus |
| 10/06/1988 | WO1988007740A1 Distance measurement control of a multiple detector system |
| 10/06/1988 | WO1988007738A1 An adaptive multivariate estimating apparatus |
| 09/22/1988 | DE3708002A1 Measuring method for assessing the quality of speech coders and/or transmission routes |
| 09/07/1988 | EP0113257B1 Musical note display device |
| 07/20/1988 | EP0275099A2 Voice analyzing and synthesizing apparatus |
| 06/14/1988 | EP0226613A4 Noise supression system. |
| 05/11/1988 | EP0266423A1 Method of collating voice pattern in voice recognizing apparatus |
| 04/05/1988 | US4736296 Method and apparatus of intelligent guidance in natural language |
| 03/30/1988 | EP0093190B1 Extrema coding signal processing method and apparatus |
| 10/22/1987 | WO1987006384A1 Method of collating voice pattern in voice recognizing apparatus |
| 09/29/1987 | CA1227573A1 Adaptive speech detector system |
| 09/09/1987 | EP0235181A1 A parallel processing pitch detector. |
| 07/23/1987 | DE3600056A1 Fundamental voice frequency analyser |
| 07/01/1987 | EP0226613A1 Noise supression system. |
| 07/01/1987 | EP0226590A1 Analyzer for speech in noise prone environments |
| 04/29/1987 | EP0219712A1 Method of and system for speech recognition |
| 03/24/1987 | US4653098 Method and apparatus for extracting speech pitch |
| 03/12/1987 | WO1987001498A1 A parallel processing pitch detector |
| 01/15/1987 | WO1987000366A1 Noise supression system |
| 01/06/1987 | CA1216364A1 Method and apparatus of intelligent guidance in natural language |
| 12/03/1986 | EP0203401A1 Method and apparatus for a voice-operated process control |
| 09/25/1986 | WO1986005619A1 Analyzer for speech in noise prone environments |
| 07/09/1986 | EP0186671A1 Adaptive speech detector system |
| 01/03/1986 | WO1986000133A1 Adaptive speech detector system |
| 10/22/1985 | US4548511 Electronic timepiece with voice memory |
| 09/17/1985 | US4542525 Method and apparatus for classifying audio signals |
| 09/17/1985 | US4542524 Model and filter circuit for modeling an acoustic sound channel, uses of the model, and speech synthesizer applying the model |
| 07/23/1985 | US4531228 Speech recognition system for an automotive vehicle |
| 07/17/1985 | EP0148171A1 Apparatus and method for speaker independently recognizing isolated speech utterances |
| 07/09/1985 | US4528687 Spoken-instruction controlled system for an automotive vehicle |
| 04/24/1985 | EP0138071A2 Method of determining the excitation condition of a speech segment with an application to automatic speech recognition |
| 04/24/1985 | EP0138061A1 Method of determining speech spectra with an application to automatic speech recognition and speech coding |
| 04/16/1985 | US4510840 Musical note display device |
| 03/26/1985 | CA1184506A1 Method and system for discriminating human voice signal |
| 12/04/1984 | US4486900 Real time pitch detection by stream processing |
| 11/22/1984 | WO1984004620A1 Apparatus and method for speaker independently recognizing isolated speech utterances |
| 11/21/1984 | EP0125422A1 Speaker-independent word recognizer |
| 07/11/1984 | EP0113257A2 Musical note display device |
| 04/17/1984 | US4443857 Process for detecting the melody frequency in a speech signal and a device for implementing same |
| 02/22/1984 | EP0100773A1 Speech recognition system for an automotive vehicle |
| 12/09/1983 | EP0052120A4 Improvements in signal processing. |
| 11/09/1983 | EP0093190A1 Extrema coding signal processing method and apparatus |
| 11/08/1983 | CA1156762A1 Apparatus for the detection of voice signals |
| 08/30/1983 | US4401850 Speech analysis apparatus |
| 07/27/1983 | EP0012767B1 Speech analyser |
| 06/29/1983 | EP0008551B1 Speech discriminator and its use |
| 05/04/1983 | EP0078015A1 Spoken-instruction controlled system for an automotive vehicle |
| 04/27/1983 | EP0077574A1 Speech recognition system for an automotive vehicle |
| 03/29/1983 | US4377961 Fundamental frequency extracting system |
| 11/16/1982 | US4359604 Apparatus for the detection of voice signals |
| 11/03/1982 | EP0063602A1 Filter system for modelling a sound channel and speech synthesizer using the same |
| 11/02/1982 | US4357488 Voice discriminating system |
| 10/19/1982 | CA1134043A1 Speech discriminator |
| 07/13/1982 | CA1127764A1 Speech recognition system |
| 06/24/1982 | WO1982002109A1 Method and system for modelling a sound channel and speech synthesizer using the same |
| 05/26/1982 | EP0052120A1 Improvements in signal processing |
| 05/19/1982 | EP0052041A1 Method and device for pitch period determination |
| 11/26/1981 | WO1981003392A1 Improvements in signal processing |
| 10/20/1981 | US4296277 Electronic voice detector |
| 09/29/1981 | US4292469 Voice pitch detector and display |
| 08/04/1981 | US4282406 Adaptive pitch detection system for voice signal |
| 06/30/1981 | US4276445 Speech analysis apparatus |
| 04/22/1981 | EP0027343A1 A voice detector |
| 04/15/1981 | EP0027066A1 Device for detecting speech signals and transmit-receive switching system comprising such a device |
| 07/09/1980 | EP0012767A1 Speech analyser. |
| 03/05/1980 | EP0008551A2 Speech discriminator and its use |
| 11/15/1979 | WO1979000913A1 Speech analyser |
| 08/14/1979 | US4164626 Pitch detector and method thereof |
| 07/31/1979 | CA1059631A1 Method of judging voiced and unvoiced conditions of speech signal |
| 07/17/1979 | US4161625 Method for determining the fundamental frequency of a voice signal |
| 06/19/1979 | US4158750 Speech recognition system with delayed output |
| 02/27/1979 | US4142067 Speech analyzer for analyzing frequency perturbations in a speech pattern to determine the emotional state of a person |
| 11/07/1978 | CA1042108A1 Tone detector using spectrum parameter estimation |