| 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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| 01/15/1997 | CN1140294A Vocal mix circuit |
| 01/08/1997 | EP0572466B1 Document interpreting systems |
| 01/02/1997 | EP0751619A1 Noise cancelling method and noise canceller |
| 01/02/1997 | EP0751493A2 Method and apparatus for reproducing speech signals and method for transmitting same |
| 01/02/1997 | EP0751491A2 Method of reducing noise in speech signal |
| 01/02/1997 | EP0750831A1 Frequency transpositional hearing aid with digital and single sideband modulation |
| 01/02/1997 | EP0750778A1 Speech synthesis |
| 12/31/1996 | US5590242 For reducing the effect of an unknown signal |
| 12/31/1996 | US5590241 Speech processing system and method for enhancing a speech signal in a noisy environment |
| 12/27/1996 | EP0750292A2 Speech recognition method and speech recognition system with reduced recognition time in consideration of environmental variation |
| 12/19/1996 | WO1996041334A1 Speaker verification system |
| 12/19/1996 | WO1996041214A1 Apparatus and method for speech recognition using spatial information |
| 12/19/1996 | CA2221415A1 Speaker verification system |
| 12/18/1996 | EP0748494A1 Siren detector |
| 12/11/1996 | EP0747884A2 Codebook gain attenuation during frame erasures |
| 12/11/1996 | EP0747880A2 System for speech recognition |
| 12/11/1996 | EP0465057B1 Low-delay code-excited linear predictive coding of wideband speech at 32kbits/sec |
| 12/10/1996 | US5583969 Speech signal processing apparatus for amplifying an input signal based upon consonant features of the signal |
| 12/10/1996 | US5583968 Noise reduction for speech recognition |
| 12/08/1996 | CA2177413A1 Codebook gain attenuation during frame erasures |
| 12/04/1996 | EP0746133A2 Multistage echo canceller including time variation compensation |
| 12/04/1996 | EP0745971A2 Pitch lag estimation system using linear predictive coding residual |
| 12/03/1996 | US5581654 Method and apparatus for information encoding and decoding |
| 12/03/1996 | US5581652 Reconstruction of wideband speech from narrowband speech using codebooks |
| 11/28/1996 | WO1996037880A1 Recording and reproducing device |
| 11/26/1996 | US5579432 Discriminating between stationary and non-stationary signals |
| 11/26/1996 | US5579046 Voice filter system for a video camera |
| 11/20/1996 | EP0743773A2 Timing recovery scheme for packet speech in multiplexing environment of voice with data applications |
| 11/20/1996 | EP0743633A2 Speech reproducing device capable of reproducing long-time speech with reduced memory |
| 11/19/1996 | US5577161 Noise reduction method and filter for implementing the method particularly useful in telephone communications systems |
| 11/19/1996 | US5575659 Document interpreting systems |
| 11/13/1996 | EP0742548A2 Speech coding apparatus and method using a filter for enhancing signal quality |
| 11/12/1996 | US5574824 Analysis/synthesis-based microphone array speech enhancer with variable signal distortion |
| 11/06/1996 | EP0672276B1 Object-oriented audio system |
| 11/05/1996 | US5572623 Method of speech detection |
| 11/05/1996 | US5572621 Speech signal processing device with continuous monitoring of signal-to-noise ratio |
| 11/05/1996 | US5572593 Method and apparatus for detecting and extending temporal gaps in speech signal and appliances using the same |
| 10/23/1996 | CN1134210A Method for associating oral utterances meaningfully with writings seriatim in audio-visual work |
| 10/23/1996 | CN1134074A Communication terminal arrangement |
| 10/17/1996 | WO1996032711A1 Waveform speech synthesis |
| 10/09/1996 | EP0736995A2 Improvements in or relating to speech recognition |
| 10/09/1996 | EP0736858A2 Mobile communication equipment |
| 10/09/1996 | CN1132988A Voice activity detection driven noise remediator |
| 10/08/1996 | US5563913 For processing an input digital signal |
| 10/06/1996 | CA2173399A1 Mobile communication equipment |
| 09/24/1996 | US5559927 Computer system producing emotionally-expressive speech messages |
| 09/24/1996 | US5559792 Sound modification for use in simultaneous voice and data communications |
| 09/18/1996 | EP0732687A2 Apparatus for expanding speech bandwidth |
| 09/18/1996 | EP0732686A2 Low-delay code-excited linear-predictive coding of wideband speech at 32kbits/sec |
| 09/18/1996 | CN1131473A Method and apparatus for selecting encoding rate in variable rate vocoder |
| 09/18/1996 | CN1131471A Sound reproducing device |
| 09/17/1996 | US5557661 System for coding and decoding moving pictures based on the result of speech analysis |
| 09/12/1996 | WO1996027870A1 Speech synthesis |
| 09/11/1996 | EP0731348A2 Voice storage and retrieval system |
| 09/11/1996 | EP0470975B1 Methods and apparatus for reconstructing non-quantized adaptively transformed voice signals |
| 09/10/1996 | US5555514 Method of and apparatus for generating doppler sounds |
| 09/10/1996 | US5555320 Pattern recognition system with improved recognition rate using nonlinear transformation |
| 09/06/1996 | WO1996027248A1 Voice messaging system and method making efficient use of orthogonal modulation components |
| 09/06/1996 | WO1996027184A1 A communication system and method using a speaker dependent time-scaling technique |
| 09/06/1996 | WO1996027155A2 Systems and methods for secure transaction management and electronic rights protection |
| 09/06/1996 | CA2683230A1 Systems and methods for secure transaction management and electronic rights protection |
| 09/04/1996 | EP0730262A2 Noise cancelling device capable of achieving a reduced convergence time and a reduced residual error after convergence |
| 09/03/1996 | US5553192 Apparatus for noise removal during the silence periods in the discontinuous transmission of speech signals to a mobile unit |
| 08/29/1996 | WO1996026592A1 Apparatus and method for canceling acoustic echoes including non-linear distortions in loudspeaker telephones |
| 08/28/1996 | EP0729037A1 System for estimating received signals in the form of mixed signals |
| 08/28/1996 | EP0728350A1 Method and apparatus for selecting an encoding rate in a variable rate vocoder |
| 08/27/1996 | US5550924 Reduction of background noise for speech enhancement |
| 08/22/1996 | WO1996025738A1 Portable digital dictation device with remote communication |
| 08/21/1996 | EP0727769A2 Method of and apparatus for noise reduction |
| 08/21/1996 | EP0727768A1 Method of and apparatus for reducing noise in speech signal |
| 08/21/1996 | CN1129486A Transmitted noise reduction in communications systems |
| 08/20/1996 | US5548681 Speech dialogue system for realizing improved communication between user and system |
| 08/20/1996 | US5548335 Dual directional microphone video camera having operator voice cancellation and control |
| 08/14/1996 | EP0726560A2 Variable speed playback system |
| 08/14/1996 | EP0725963A1 Language analysis instrument |
| 08/08/1996 | WO1996024128A1 Spectral subtraction noise suppression method |
| 08/08/1996 | WO1996024127A1 Adaptive speech filter |
| 08/08/1996 | WO1996016533A3 Method for transforming a speech signal using a pitch manipulator |
| 08/06/1996 | US5544278 Pitch post-filter |
| 07/31/1996 | EP0628195A4 Method and apparatus for encoding, decoding and compression of audio-type data. |
| 07/31/1996 | EP0470245B1 Method for spectral estimation to improve noise robustness for speech recognition |
| 07/31/1996 | CN1127916A Speed-variable audio play-back apparatus |
| 07/23/1996 | US5539861 Speech recognition using bio-signals |
| 07/23/1996 | US5539860 Speech recognition using bio-signals |
| 07/23/1996 | US5539859 Method of using a dominant angle of incidence to reduce acoustic noise in a speech signal |
| 07/17/1996 | EP0721727A1 Method for associating oral utterances meaningfully with writings seriatim in the audio-visual work |
| 07/16/1996 | US5537647 For use in a speech processing system |
| 07/16/1996 | US5536902 Method of and apparatus for analyzing and synthesizing a sound by extracting and controlling a sound parameter |
| 07/16/1996 | US5536171 Synthesis-based speech training system and method |
| 07/02/1996 | US5532936 Transform method and spectrograph for displaying characteristics of speech |
| 07/02/1996 | CA2089478C Automatic length-reducing audio delay line |
| 06/27/1996 | DE4445983A1 Noise suppression system using spectral subtraction method |
| 06/26/1996 | EP0718820A2 Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus |
| 06/26/1996 | CN1125487A Object-oriented audio system |
| 06/25/1996 | US5530768 Speech enhancement apparatus |
| 06/25/1996 | CA2049173C Speech recognition apparatus |
| 06/20/1996 | WO1996018996A1 Speech processing |
| 06/19/1996 | CN1125028A Adaptive video decompression |
| 06/18/1996 | US5528731 Method of accommodating for carbon/electret telephone set variability in automatic speaker verification |
| 06/13/1996 | WO1996018184A1 Method and device for enhancing the recognition of speech among speech-impaired individuals |