| Patents for G10L 19 - Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis (31,960) |
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| 02/13/1997 | WO1997005730A1 Assessment of signal quality |
| 02/13/1997 | WO1997005602A1 Method and apparatus for generating and encoding line spectral square roots |
| 02/13/1997 | CA2228172A1 Method and apparatus for generating and encoding line spectral square roots |
| 02/12/1997 | EP0758123A2 Block normalization processor |
| 02/12/1997 | EP0757866A1 Analogue signal coder |
| 02/11/1997 | US5602999 Memory system having a plurality of memories, a plurality of detector circuits, and a delay circuit |
| 02/11/1997 | US5602961 Method and apparatus for speech compression using multi-mode code excited linear predictive coding |
| 02/11/1997 | US5602959 Method and apparatus for characterization and reconstruction of speech excitation waveforms |
| 02/11/1997 | US5602550 Apparatus and method for lossless waveform data compression |
| 02/11/1997 | US5602549 System for variable length decoding digital transmission data which has been compressed by selecting a scanning pattern |
| 02/06/1997 | WO1997004621A1 Process for reducing redundancy during the coding of multichannel signals and device for decoding redundancy-reduced multichannel signals |
| 02/04/1997 | US5600755 Voice codec apparatus |
| 02/04/1997 | US5600754 Method and system for the arrangement of vocoder data for the masking of transmission channel induced errors |
| 02/04/1997 | US5600649 Digital simultaneous voice and data modem |
| 01/29/1997 | EP0756268A2 Speech encoder capable of substantially increasing a codebook size without increasing the number of transmitted bits |
| 01/29/1997 | EP0756267A1 Method and system for silence removal in voice communication |
| 01/29/1997 | EP0756259A1 RDS-TMC radio receiver |
| 01/29/1997 | CN1141684A Sound encoding system |
| 01/29/1997 | CN1141548A Method and apparatus for reducing noise in speech signal |
| 01/28/1997 | US5598506 Apparatus and a method for concealing transmission errors in a speech decoder |
| 01/28/1997 | US5598505 Cepstral correction vector quantizer for speech recognition |
| 01/28/1997 | US5598504 Speech coding system to reduce distortion through signal overlap |
| 01/28/1997 | CA2078927C Code-book driven vocoder device with voice source generator |
| 01/23/1997 | WO1997002561A1 A method to evaluate the hangover period in a speech decoder in discontinuous transmission, and a speech encoder and a transceiver |
| 01/23/1997 | DE19526366A1 Verfahren zur Redundanzreduktion bei der Codierung von mehrkanaligen Signalen und Vorrichtung zur Dekodierung von redundanzreduzierten, mehrkanaligen Signalen A method for reducing redundancy during the coding of multichannel signals and apparatus for decoding redundancy-reduced multichannel signals |
| 01/22/1997 | EP0755056A2 Data protocol for a music chip |
| 01/22/1997 | EP0755047A2 Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits |
| 01/22/1997 | EP0754374A1 Compact source coding tables for encoder/decoder system |
| 01/22/1997 | CN1140871A Synthesis of speech using regenerated phase information |
| 01/22/1997 | CN1140869A Method for noise reduction |
| 01/21/1997 | US5596678 Lost frame concealment |
| 01/21/1997 | US5596677 Methods and apparatus for coding a speech signal using variable order filtering |
| 01/21/1997 | US5596676 Mode-specific method and apparatus for encoding signals containing speech |
| 01/21/1997 | US5596675 Method and apparatus for speech encoding, speech decoding, and speech post processing |
| 01/21/1997 | US5596362 Low bit rate audio-visual communication having improved face and lip region detection |
| 01/16/1997 | WO1996036163A3 Steganography systems |
| 01/15/1997 | EP0753969A2 Model-assisted video coding |
| 01/15/1997 | EP0753841A2 Speech parameter encoding method capable of transmitting a spectrum parameter at a reduced number of bits |
| 01/15/1997 | EP0709005B1 Computationally efficient adaptive bit allocation for coding method and apparatus |
| 01/15/1997 | CN1140362A Coding apparatus |
| 01/14/1997 | US5594833 Rapid sound data compression in code book creation |
| 01/11/1997 | CA2177866A1 Automatic face and facial feature location detection for low bit rate model-assisted h.261 compatible coding of video |
| 01/08/1997 | CN1139999A Transmission system utilizng different coding principles |
| 01/08/1997 | CN1139988A Burst excited linear prediction |
| 01/08/1997 | CN1139805A Data recording method |
| 01/07/1997 | US5592588 Method and apparatus for object-oriented digital audio signal processing using a chain of sound objects |
| 01/07/1997 | US5592586 Voice compression system and method |
| 01/07/1997 | US5592584 Method and apparatus for two-component signal compression |
| 01/03/1997 | WO1997000558A1 Apparatus and method for lossless waveform data compression |
| 01/03/1997 | WO1997000516A1 Speech coder |
| 01/02/1997 | EP0751624A2 Encoding apparatus |
| 01/02/1997 | EP0751520A2 Transmission of digital signals by means of a record carrier |
| 01/02/1997 | EP0751496A2 Speech coding method and apparatus for the same |
| 01/02/1997 | EP0751495A2 Method and device for coding speech |
| 01/02/1997 | EP0751494A1 Sound encoding system |
| 01/02/1997 | EP0751493A2 Method and apparatus for reproducing speech signals and method for transmitting same |
| 01/02/1997 | EP0751492A2 Method and equipment for coding and decoding a sampled speech signal |
| 01/02/1997 | EP0751490A2 Speech decoding apparatus |
| 01/02/1997 | DE19617630A1 Verfahren zum Herleiten der Nachwirkperiode in einem Sprachdecodierer bei diskontinuierlicher Übertragung, sowie Sprachcodierer und Sender-Empfänger A method for deriving the Nachwirkperiode in a speech decoder in the discontinuous transmission, as well as speech encoder and transceiver |
| 12/31/1996 | US5590242 For reducing the effect of an unknown signal |
| 12/31/1996 | US5590195 Information dissemination using various transmission modes |
| 12/31/1996 | CA2100073C Prioritization method and device for speech frames coded by a linear predictive coder |
| 12/27/1996 | WO1996042071A2 Mpeg audio decoder |
| 12/27/1996 | EP0750273A2 Pattern recognition with a quantization codebook |
| 12/27/1996 | EP0749647A1 Method and apparatus for determining a masked threshold |
| 12/27/1996 | EP0749626A1 Speech coding method using linear prediction and algebraic code excitation |
| 12/24/1996 | US5588089 Bark amplitude component coder for a sampled analog signal and decoder for the coded signal |
| 12/24/1996 | US5588024 Frequency subband encoding apparatus |
| 12/18/1996 | EP0749220A2 Coding of data with a fixed word length |
| 12/18/1996 | EP0749111A2 Codebook searching techniques for speech processing |
| 12/18/1996 | EP0749110A2 Adaptive codebook-based speech compression system |
| 12/18/1996 | EP0748499A1 Method, device, and systems for determining a masking level for a subband in a subband audio encoder |
| 12/18/1996 | EP0336502B1 Method of and device for encoding a speech parameter such as the pitch, as a function of time |
| 12/18/1996 | CN1138386A Distributed voice recognition system |
| 12/18/1996 | CN1138262A Telephone answering machine with audio signal compression/expansion circuit |
| 12/18/1996 | CN1138183A Method of adapting noise masking level in analysis-by-synthesis speech coder employing short-team perceptual weichting filter |
| 12/17/1996 | US5586193 Signal compressing and transmitting apparatus |
| 12/17/1996 | US5586126 Sample amplitude error detection and correction apparatus and method for use with a low information content signal |
| 12/11/1996 | EP0748138A2 Method of transporting speech information in a wireless cellular system |
| 12/11/1996 | EP0747884A2 Codebook gain attenuation during frame erasures |
| 12/11/1996 | EP0747883A2 Voiced/unvoiced classification of speech for use in speech decoding during frame erasures |
| 12/11/1996 | EP0747882A2 Pitch delay modification during frame erasures |
| 12/11/1996 | EP0747879A1 Voice signal coding system |
| 12/11/1996 | EP0747823A2 Digital audio data storage device |
| 12/11/1996 | EP0746924A1 Digital transmission system with an improved decoder in the receiver |
| 12/11/1996 | EP0746913A1 Process for the cascade coding and decoding of audio data |
| 12/11/1996 | EP0746845A1 Adaptive error control for adpcm speech coders |
| 12/11/1996 | EP0465057B1 Low-delay code-excited linear predictive coding of wideband speech at 32kbits/sec |
| 12/11/1996 | CN1137727A Selector and multiple vocoder interface apparatus for movable communication system and method thereof |
| 12/10/1996 | US5583963 System for predictive coding/decoding of a digital speech signal by embedded-code adaptive transform |
| 12/10/1996 | US5583962 For encoding two or more audio channels |
| 12/10/1996 | US5583888 Vector quantization of a time sequential signal by quantizing an error between subframe and interpolated feature vectors |
| 12/08/1996 | CA2177413A1 Codebook gain attenuation during frame erasures |
| 12/05/1996 | WO1996038928A1 Error protection in dynamic bit allocation sub-band coding |
| 12/05/1996 | WO1996038843A1 Method and device for encoding audio signal and method and device for decoding audio signal |
| 12/05/1996 | WO1996038836A1 Constant data rate speech encoder for limited bandwidth path |
| 12/04/1996 | EP0746116A2 MPEG audio decoder |
| 12/04/1996 | EP0746115A2 Audio signal processing circuit for subband coding |
| 12/04/1996 | EP0745972A2 Method of and apparatus for coding speech signal |
| 12/04/1996 | EP0745971A2 Pitch lag estimation system using linear predictive coding residual |