| Patents for G10L 21 - Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility (18,985) |
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| 10/13/1983 | WO1983003483A1 Method and apparatus for use in processing signals |
| 10/05/1983 | EP0090589A1 Method and apparatus for use in processing signals |
| 08/30/1983 | US4401852 Voice response control system |
| 07/12/1983 | US4393272 Sound synthesizer |
| 07/05/1983 | US4392161 Recorded tape, speed-change reproducing system |
| 05/10/1983 | CA1146080A1 Decreasing time duration of recorded speech |
| 05/04/1983 | EP0078014A1 Speech recognition system for an automotive vehicle |
| 05/03/1983 | US4382160 Methods and apparatus for encoding and constructing signals |
| 04/13/1983 | EP0076687A1 Speech intelligibility enhancement system and method |
| 03/29/1983 | US4378466 Conversion of acoustic signals into visual signals |
| 03/08/1983 | USRE31172 Sound synthesizing apparatus |
| 02/23/1983 | EP0072706A1 Sound signal processing apparatus |
| 01/25/1983 | US4370524 Circuit for time compression and expansion of audio signals |
| 11/24/1982 | EP0065210A2 Electrical signal conditioning method with a digital filter device |
| 11/17/1982 | EP0064750A2 Gapless splicing of pitch altered waveforms |
| 11/17/1982 | EP0004759B1 Methods and apparatus for encoding and constructing signals |
| 10/19/1982 | US4355204 Speech synthesizing arrangement having at least two distortion circuits |
| 09/15/1982 | EP0059832A2 Speech synthesis integrated circuit device having variable frame rate capability |
| 09/08/1982 | EP0059650A2 Speech processing system |
| 07/28/1982 | EP0056587A2 Voice response control system |
| 07/28/1982 | EP0056507A1 Apparatus and method for creating visual images of lip movements |
| 07/27/1982 | US4342104 Helium-speech communication |
| 06/15/1982 | US4335276 Apparatus for non-invasive measurement and display nasalization in human speech |
| 06/01/1982 | US4333152 TV Movies that talk back |
| 03/09/1982 | CA1119724A1 Predictive speech signal coding with reduced noise effects |
| 02/23/1982 | CA1118897A1 Sound synthesizing apparatus |
| 12/08/1981 | US4305131 Dialog between TV movies and human viewers |
| 11/17/1981 | US4301333 Speech compression |
| 10/13/1981 | CA1110768A1 Method and apparatus for removing room reverberation |
| 09/01/1981 | US4287391 Microphone assembly for speech recording using noise-adaptive output level control |
| 08/25/1981 | US4286116 Device for the processing of voice signals |
| 08/11/1981 | US4283601 Preprocessing method and device for speech recognition device |
| 07/21/1981 | CA1105621A1 Voice synthesizer |
| 06/17/1981 | EP0030390A1 Sound synthesizer |
| 05/26/1981 | US4270025 Sampled speech compression system |
| 05/20/1981 | EP0028856A2 Speech synthesizing arrangement having at least two distortion circuits |
| 04/07/1981 | US4260229 Creating visual images of lip movements |
| 01/20/1981 | US4246617 Digital system for changing the rate of recorded speech |
| 01/06/1981 | US4243935 Adaptive detector |
| 12/23/1980 | US4241235 Voice modification system |
| 11/04/1980 | CA1089096A1 Signal synthesizer spectrum contour scaler |
| 10/14/1980 | US4228322 Decreasing time duration of recorded speech |
| 10/07/1980 | US4227046 Pre-processing system for speech recognition |
| 10/01/1980 | EP0016314A1 Method and apparatus for voice dialogue between a video picture and a human |
| 07/23/1980 | EP0013341A1 Time compression system for speech signals |
| 07/09/1980 | EP0012766A1 Predictive speech signal coding with reduced noise effects |
| 07/01/1980 | US4210781 Sound synthesizing apparatus |
| 06/11/1980 | EP0011634A1 Voice synthesizer |
| 04/16/1980 | EP0010022A1 Device for conditioning speech signals and transmitter comprising such a device |
| 04/16/1980 | EP0009714A2 Method and apparatus for converting acoustic signals into optic signals |
| 04/15/1980 | US4198606 Tuning apparatus |
| 11/15/1979 | WO1979000901A1 Predictive speech signal coding with reduced noise effects |
| 11/15/1979 | WO1979000892A1 Voice synthesizer |
| 10/17/1979 | EP0004759A2 Methods and apparatus for encoding and constructing signals |
| 07/31/1979 | US4163120 Voice synthesizer |
| 02/13/1979 | US4139732 Apparatus for speech pattern derivation |
| 01/09/1979 | US4133976 Predictive speech signal coding with reduced noise effects |
| 01/02/1979 | CA1045719A1 System for audibly recognizing an aurally unclassifiable signal |
| 01/02/1979 | CA1045718A1 System for audibly recognizing an aurally unclassifiable signal |
| 08/01/1978 | US4104625 Apparatus for providing facial image animation |
| 07/11/1978 | US4100370 Voice verification system based on word pronunciation |
| 07/04/1978 | US4099030 Speech signal processor using comb filter |
| 05/23/1978 | US4091242 High speed voice replay via digital delta modulation |
| 03/14/1978 | US4079197 Voice transcoder in helium atmosphere |
| 02/28/1978 | US4076958 Signal synthesizer spectrum contour scaler |
| 02/21/1978 | US4075423 Sound analyzing apparatus |
| 01/03/1978 | US4066842 Method and apparatus for cancelling room reverberation and noise pickup |
| 12/13/1977 | US4063035 Device for visually displaying the auditory content of the human voice |
| 09/27/1977 | US4051331 Speech coding hearing aid system utilizing formant frequency transformation |
| 08/23/1977 | US4044204 Device for separating the voiced and unvoiced portions of speech |
| 07/05/1977 | US4034160 System for the transmission of speech signals |
| 05/24/1977 | US4025721 Method of and means for adaptively filtering near-stationary noise from speech |
| 05/24/1977 | US4024789 Tone analysis system with visual display |
| 05/03/1977 | US4020567 Method and stuttering therapy apparatus |
| 04/26/1977 | US4020291 System for time compression and expansion of audio signals |
| 12/14/1976 | US3997913 Electronic time compressor/expander utilizing magnetic storage |
| 11/09/1976 | US3991273 Speech component coded multiplex carrier wave transmission |
| 10/26/1976 | US3988546 System for audibly recognizing an aurally unclassifiable signal |
| 06/22/1976 | US3965298 Deep sea diving speech converter |
| 05/04/1976 | US3955050 System for audibly recognizing an aurally unclassifiable signal |
| 04/13/1976 | US3950617 Helium speech unscrambler with pitch synchronization |
| 03/30/1976 | US3946504 Utterance training machine |
| 03/23/1976 | US3946162 System for transferring wideband sound signals |
| 02/03/1976 | US3936610 Dual delay line storage sound signal processor |
| 01/20/1976 | US3934094 Frequency band converter |