Patents
Sitemap › G10 - Musical instruments; Acoustics › G10L - Speech analysis or synthesis; Speech recognition; Speech or voice processing; Speech or audio coding or decoding › 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
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)
10/1987
10/20/1987US4701937 Signal storage and replay system
10/14/1987EP0241170A1 Adaptive speech feature signal generation arrangement
10/13/1987US4700393 Speech synthesizer with variable speed of speech
10/13/1987US4700391 Method and apparatus for pitch controlled voice signal processing
10/13/1987US4700390 Signal synthesizer
10/07/1987EP0240330A2 Noise compensation in speech recognition
10/07/1987EP0240329A2 Noise compensation in speech recognition
09/1987
09/30/1987EP0239394A1 Speech synthesis system
09/23/1987EP0237934A1 Speech recognition system
09/22/1987US4696040 Speech analysis/synthesis system with energy normalization and silence suppression
09/22/1987US4696039 Speech analysis/synthesis system with silence suppression
09/09/1987EP0235127A1 Hands-free control system for a radiotelephone.
09/08/1987CA1226676A1 Speech message code modifying arrangement
07/1987
07/01/1987EP0226613A1 Noise supression system.
06/1987
06/16/1987EP0225729A1 Image encoding and synthesis
06/16/1987EP0059650B1 Speech processing system
05/1987
05/06/1987EP0220563A1 Adaptive noise suppressor
04/1987
04/14/1987US4658426 Adaptive noise suppressor
04/14/1987US4658424 Speech synthesis integrated circuit device having variable frame rate capability
04/01/1987EP0216129A2 Apparatus for making and editing dictionary entries in a text to speech conversion system
03/1987
03/24/1987US4652857 Method and apparatus for transmitting wide-bandwidth frequency signals from mines and other power restricted environments
03/12/1987WO1987001546A1 Hands-free control system for a radiotelephone
03/10/1987US4649505 Two-input crosstalk-resistant adaptive noise canceller
02/1987
02/24/1987CA1218462A1 Compression and expansion of digitized voice signals
02/24/1987CA1218458A1 Apparatus and method for automatic speech activity detection
01/1987
01/21/1987EP0208712A1 Adaptive method and apparatus for coding speech.
01/20/1987CA1216944A1 Speech recognition system
01/15/1987WO1987000366A1 Noise supression system
12/1986
12/23/1986US4631746 Compression and expansion of digitized voice signals
12/16/1986US4630305 Automatic gain selector for a noise suppression system
12/16/1986US4630304 Automatic background noise estimator for a noise suppression system
12/09/1986US4628529 Noise suppression system
12/02/1986US4627090 Audio frequency multiplication device
11/1986
11/18/1986US4624012 Method and apparatus for converting voice characteristics of synthesized speech
11/18/1986US4623980 Method of processing electrical signals by means of Fourier transformations
11/11/1986US4622690 Audio frequency multiplication device
10/1986
10/15/1986EP0197758A2 Tone restoring apparatus
09/1986
09/25/1986WO1986005409A1 Video display of two-channel audio signals
09/23/1986CA1211843A1 Digital voice compression having a digitally controlled agc circuit and means for including the true gain in the compressed data
09/16/1986CA1211569A1 Method and apparatus for pitch period controlled voice signal processing
09/09/1986US4611342 Digital voice compression having a digitally controlled AGC circuit and means for including the true gain in the compressed data
07/1986
07/03/1986WO1986003873A1 Method and apparatus for encoding speech
07/03/1986WO1986003872A1 Adaptive method and apparatus for coding speech
06/1986
06/17/1986US4596032 Electronic equipment with time-based correction means that maintains the frequency of the corrected signal substantially unchanged
06/10/1986CN85103945A Rapid-audio device for tone frequencies
06/04/1986EP0182989A1 Normalization of speech signals
05/1986
05/27/1986US4592085 Speech-recognition method and apparatus for recognizing phonemes in a voice signal
05/27/1986US4591928 Method and apparatus for use in processing signals
05/20/1986CA1204855A1 Method and apparatus for use in processing signals
05/10/1986CN85107539A 电脑通讯系统 Computer communications systems
05/06/1986US4587669 Speech compression
05/06/1986US4587620 Noise elimination device
04/1986
04/29/1986US4586191 Sound signal processing apparatus
04/08/1986US4581491 Wearable tactile sensory aid providing information on voice pitch and intonation patterns
03/1986
03/18/1986US4577343 Sound synthesizer
03/05/1986EP0173530A2 Variable speed replay of digital audio with constant output sampling rate
02/1986
02/25/1986CA1201178A1 Method of preparing electrical signals by means of a digital filtering device
02/04/1986US4569026 TV Movies that talk back
02/04/1986CA1200208A1 Directable microphone system
12/1985
12/31/1985US4562488 Device for reproduced sound pitch modification in a tape player
12/10/1985US4558459 Speech recognition system for an automotive vehicle
10/1985
10/08/1985US4546342 Data compression method and apparatus
10/02/1985EP0155970A1 Apparatus for reproducing audio signal
09/1985
09/17/1985CA1193732A1 Speech-recognition method and apparatus for recognizing phonemes in a voice signal
07/1985
07/30/1985US4532648 Speech recognition system for an automotive vehicle
06/1985
06/20/1985WO1985002732A1 Data compression method and apparatus
06/12/1985EP0056507B1 Apparatus and method for creating visual images of lip movements
06/05/1985EP0143161A1 Apparatus for automatic speech activity detection
05/1985
05/08/1985EP0140249A1 Speech analysis/synthesis with energy normalization
05/08/1985EP0009714B1 Method and apparatus for converting acoustic signals into optic signals
03/1985
03/28/1985WO1985001377A1 Apparatus for reproducing audio signal
02/1985
02/05/1985CA1182221A1 Speech intelligibility enhancement
01/1985
01/29/1985CA1181859A1 Variable rate speech synthesizer
12/1984
12/20/1984WO1984004989A1 Method and apparatus for pitch period controlled voice signal processing
12/12/1984EP0127892A1 Method and apparatus for pitch period controlled voice signal processing
12/05/1984EP0028856B1 Speech synthesizing arrangement having at least two distortion circuits
11/1984
11/28/1984EP0126420A1 A speech recognition system
11/27/1984US4485484 Signal processing arrangement for reducing audio interference
09/1984
09/19/1984EP0118771A2 Compression and expansion of digitized voice signals
09/04/1984US4470150 Voice synthesizer with automatic pitch and speech rate modulation
08/1984
08/28/1984US4468804 Speech enhancement techniques
08/07/1984US4464784 Pitch changer with glitch minimizer
08/07/1984CA1172366A1 Methods and apparatus for encoding and constructing signals
07/1984
07/17/1984US4461025 Automatic background noise suppressor
07/10/1984US4459674 Voice input/output apparatus
06/1984
06/26/1984USRE31614 Decreasing time duration of recorded speech
06/19/1984US4455676 Speech processing system including an amplitude level control circuit for digital processing
06/19/1984US4455615 Intonation-varying audio output device in electronic translator
06/12/1984US4454609 Speech intelligibility enhancement
04/1984
04/24/1984US4445187 Video games with voice dialog
04/17/1984US4443757 For processing a variable electrical signal
03/1984
03/06/1984US4435832 Speech synthesizer having speech time stretch and compression functions
02/1984
02/21/1984US4433434 Method and apparatus for time domain compression and synthesis of audible signals
01/1984
01/17/1984CA1160574A1 Device for the processing of voice signals
11/1983
11/22/1983US4417103 Stereo reproduction with gapless splicing of pitch altered waveforms
11/22/1983CA1157564A1 Sound synthesizer
11/15/1983US4415772 Gapless splicing of pitch altered waveforms
11/09/1983EP0093303A1 Speech recognition system for an automotive vehicle
11/08/1983US4414431 Method and apparatus for displaying speech information
10/1983
10/25/1983CA1155958A1 Speech synthesizing arrangement having at least two distortion circuits
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