| 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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| 01/16/1996 | CA2044751C Speech coding system |
| 01/10/1996 | EP0691751A1 Method and device for compressing information, method and device for expanding compressed information, device for recording/transmitting compressed information, device for receiving compressed information, and recording medium |
| 01/10/1996 | EP0691052A1 Method and apparatus for encoding multibit coded digital sound through subtracting adaptive dither, inserting buried channel bits and filtering, and encoding and decoding apparatus for use with this method |
| 01/09/1996 | US5483619 Method and apparatus for editing an audio signal |
| 01/04/1996 | DE4447257A1 Digital audio signal coding method |
| 01/03/1996 | EP0646300B1 Method of detecting errors in digitized data-reduced audio and data signals |
| 01/02/1996 | US5481739 Vector quantization using thresholds |
| 01/02/1996 | US5481642 Constrained-stochastic-excitation coding |
| 01/02/1996 | US5481614 Method and apparatus for coding audio signals based on perceptual model |
| 12/27/1995 | EP0689195A2 Excitation signal encoding method and device |
| 12/27/1995 | EP0689194A1 Method of and apparatus for signal recognition that compensates for mismatching |
| 12/27/1995 | EP0689193A1 Speech recognition using dynamic features |
| 12/27/1995 | EP0689189A1 Voice coders |
| 12/27/1995 | EP0688480A1 A method and system for audio information dissemination using various transmission modes |
| 12/26/1995 | US5479562 Method and apparatus for encoding and decoding audio information |
| 12/26/1995 | US5479561 Bit allocation method in subband coding |
| 12/26/1995 | US5479559 Excitation synchronous time encoding vocoder and method |
| 12/21/1995 | WO1995034956A1 Method and device for encoding signal, method and device for decoding signal, recording medium, and signal transmitting device |
| 12/21/1995 | CA2169366A1 Method and device for encoding signal, method and device for decoding signal, recording medium, and signal transmitting device |
| 12/20/1995 | EP0688013A2 Apparatus for coding speech having a local peak |
| 12/20/1995 | CN1113586A Removal of swirl artifacts from CELP based speech coders |
| 12/14/1995 | WO1995030286A3 Encoding system and encoding method for encoding a digital signal having at least a first and a second digital signal component |
| 12/14/1995 | DE19520764A1 Kommunikationssystem Communication system |
| 12/13/1995 | EP0686965A2 Speech recognition apparatus with speaker adaptation using acoustic category mean value calculus |
| 12/13/1995 | EP0686328A1 Digital dictation system with protection against unauthorised listening-in |
| 12/12/1995 | US5475792 Telephony channel simulator for speech recognition application |
| 12/12/1995 | US5475789 Method of compressing an audio signal using adaptive bit allocation taking account of temporal masking |
| 12/12/1995 | US5475712 Voice coding communication system and apparatus therefor |
| 12/12/1995 | US5475689 Cellular telephone with datagram and dispatch operation |
| 12/12/1995 | US5475629 Waveform decoding apparatus |
| 12/12/1995 | CA2074418C Speech synthesis using perceptual linear prediction parameters |
| 12/07/1995 | WO1995029480A3 Analogue signal coder |
| 12/07/1995 | DE19505435C1 Tonality evaluation system for audio signal |
| 12/06/1995 | EP0685836A1 Method and apparatus for preprocessing of an acoustic signal before speech coding |
| 12/06/1995 | EP0685833A1 Method for speech coding using linear prediction |
| 12/06/1995 | EP0685824A2 Data decompression and transfer system |
| 12/06/1995 | EP0685823A2 Method and apparatus for compressing a sequence of frames having at least two media components |
| 12/06/1995 | CN1113096A Digital signal encoding device, its decoding device, and its recording medium |
| 12/05/1995 | US5473759 Sound analysis and resynthesis using correlograms |
| 12/05/1995 | US5473727 Voice encoding method and voice decoding method |
| 12/05/1995 | US5473631 Simultaneous transmission of data and audio signals by means of perceptual coding |
| 12/05/1995 | CA1337707C Adaptive speech feature signal generation arrangement |
| 11/30/1995 | WO1995032499A1 Encoding method, decoding method, encoding-decoding method, encoder, decoder, and encoder-decoder |
| 11/29/1995 | EP0684705A2 Multichannel signal coding using weighted vector quantization |
| 11/29/1995 | EP0684702A2 Vector quantizing apparatus |
| 11/29/1995 | CN1112799A Method and apparatus for encoding digital signals, method and apparatus for decoding the coded signals, and medium for recording the coded signals |
| 11/28/1995 | USRE35104 Subrate multi-media data transmission system |
| 11/28/1995 | US5471470 Computer-based multifunction personal communications system |
| 11/28/1995 | CA2037326C Communication apparatus for speech signal |
| 11/28/1995 | CA1337665C Computationally efficient sine wave synthesis for acoustic waveform processing |
| 11/22/1995 | EP0682850A1 Method and apparatus for compressing, method for transmitting, and method and apparatus for expanding compressed multi-channel sound signals, and recording medium for compressed multi-channel sound signals |
| 11/22/1995 | EP0682831A1 Soft error correction in a tdma radio system |
| 11/21/1995 | US5469527 Method of and device for coding speech signals with analysis-by-synthesis techniques |
| 11/21/1995 | US5469474 Quantization bit number allocation by first selecting a subband signal having a maximum of signal to mask ratios in an input signal |
| 11/16/1995 | WO1995030983A1 Audio analysis/synthesis system |
| 11/16/1995 | WO1995028824A3 Method of encoding a signal containing speech |
| 11/15/1995 | EP0682337A1 Method and device for encoding signal, method and device for decoding signal, and recording medium |
| 11/15/1995 | EP0681730A1 Transmitted noise reduction in communications systems |
| 11/15/1995 | EP0681728A1 A system and method for compression and decompression of audio signals |
| 11/09/1995 | WO1995030286A2 Encoding system and encoding method for encoding a digital signal having at least a first and a second digital signal component |
| 11/09/1995 | WO1995030223A1 A pitch post-filter |
| 11/09/1995 | WO1995030222A1 A multi-pulse analysis speech processing system and method |
| 11/08/1995 | EP0680654A1 Text-to-speech system using vector quantization based speech encoding/decoding |
| 11/08/1995 | EP0680643A1 Apparatus and method for compressing information |
| 11/08/1995 | CN1111465A Method and apparatus for reducing an undesirable characteristic of a spectral estimate of a noise signal between occurrences of voice signals |
| 11/07/1995 | US5465316 Method and device for coding and decoding speech signals using inverse quantization |
| 11/02/1995 | WO1995029480A2 Analogue signal coder |
| 11/02/1995 | WO1995028824A2 Method of encoding a signal containing speech |
| 11/02/1995 | EP0680169A2 Recovering analog and digital signals from superimposed analog and digital signals using linear prediction |
| 11/02/1995 | EP0680034A1 Mobile radio communication system using a sound or voice activity detector and convolutional coding |
| 11/02/1995 | EP0680033A2 Speech-rate modification for linear-prediction based analysis-by-synthesis speech coders |
| 11/02/1995 | EP0680032A2 Quantization of input vectors with and without rearrangement of vector elements of a candidate vector |
| 11/02/1995 | CA2165546A1 Method of encoding a signal containing speech |
| 10/31/1995 | US5463716 Formant extraction on the basis of LPC information developed for individual partial bandwidths |
| 10/26/1995 | WO1995028699A1 Differential-transform-coded excitation for speech and audio coding |
| 10/26/1995 | WO1995024776A3 Transmission system for quasi-periodic signals |
| 10/25/1995 | EP0679033A2 Vector quantization coding apparatus and decoding apparatus |
| 10/25/1995 | CN1110891A A speech decoding method and a speech decoder |
| 10/25/1995 | CN1110884A 失帧的隐蔽 Frame loss concealment |
| 10/25/1995 | CN1110883A Rejected frame concealment |
| 10/20/1995 | CA2121667A1 Differential-transform-coded excitation for speech and audio coding |
| 10/18/1995 | EP0677932A1 Method and apparatus for multichannel sound encoding |
| 10/18/1995 | EP0677931A2 Moise shaping of differntially encoded and compressed audiosignals |
| 10/18/1995 | EP0677202A1 Discriminating between stationary and non-stationary signals |
| 10/18/1995 | CN1110492A Apparatus and method for coding or decoding signals, and recording medium |
| 10/18/1995 | CN1110486A Transmission error concealment |
| 10/18/1995 | CN1030129C High efficiency digital data encoding and decoding apparatus |
| 10/17/1995 | US5459846 Computer architecture system having an imporved memory |
| 10/17/1995 | US5459815 Speech recognition method using time-frequency masking mechanism |
| 10/15/1995 | CA2145016A1 Speech-rate modification for linear-prediction based analysis-by-synthesis speech coders |
| 10/12/1995 | WO1995027349A1 Apparatus and methods for including codes in audio signals and decoding |
| 10/12/1995 | WO1995027337A1 Compact source coding tables for encoder/decoder system |
| 10/12/1995 | WO1995027336A1 Method and device for encoding signal, signal transmitting method, signal recording medium, and method and device for decoding signal |
| 10/12/1995 | CA2183352A1 Compact source coding tables for encoder/decoder system |
| 10/11/1995 | EP0676899A2 Audio-visual communication system having integrated perceptual speech and video coding |
| 10/11/1995 | EP0676744A1 Estimation of excitation parameters |
| 10/11/1995 | EP0676102A1 Apparatus and method for adapting a digital radiotelephone system to increased subscriber traffic |
| 10/11/1995 | CN1110031A Transmission system with reconstruction of missing signal samples |
| 10/10/1995 | USRE35057 Speech coding using sparse vector codebook and cyclic shift techniques |
| 10/10/1995 | US5457783 Adaptive speech coder having code excited linear prediction |