| 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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| 05/16/2000 | CA2176985C Smart tray for audio player |
| 05/11/2000 | WO2000027135A2 Mobile wireless internet portable radio |
| 05/11/2000 | DE4447647C2 Vector sum excited linear predictive coding speech coder |
| 05/11/2000 | DE19845888A1 Verfahren zur Codierung oder Decodierung von Sprachsignalabtastwerten sowie Coder bzw. Decoder A method for encoding or decoding of speech coder and decoder or |
| 05/11/2000 | CA2348573A1 Mobile wireless internet portable radio |
| 05/10/2000 | EP0998741A2 Transmission system with improved speech encoder |
| 05/10/2000 | EP0998740A1 Method and apparatus for speech analysis and synthesis using lattice-ladder filters |
| 05/10/2000 | CN1252917A Method and system for manipulation of audio or video signals |
| 05/10/2000 | CN1252656A Method and apparatus for determining data rate transmitted by variable rate |
| 05/09/2000 | US6061793 Method and apparatus for embedding data, including watermarks, in human perceptible sounds |
| 05/09/2000 | US6061649 Signal encoding method and apparatus, signal decoding method and apparatus and signal transmission apparatus |
| 05/09/2000 | US6061648 Speech coding apparatus and speech decoding apparatus |
| 05/04/2000 | WO2000025305A1 High frequency content recovering method and device for over-sampled synthesized wideband signal |
| 05/04/2000 | WO2000025304A1 Perceptual weighting device and method for efficient coding of wideband signals |
| 05/04/2000 | WO2000025303A1 Periodicity enhancement in decoding wideband signals |
| 05/04/2000 | WO2000025302A1 Celp voice encoder |
| 05/04/2000 | WO2000025301A1 Method and arrangement for providing comfort noise in communications systems |
| 05/04/2000 | WO2000025298A1 A method and device for adaptive bandwidth pitch search in coding wideband signals |
| 05/04/2000 | WO2000025249A1 Multi-precision technique for digital audio encoder |
| 05/03/2000 | EP0998166A1 Device for audio processing,receiver and method for filtering the wanted signal and reproducing it in presence of ambient noise |
| 05/03/2000 | EP0998051A2 Block size determination and adaptation method for audio transform coding |
| 05/03/2000 | EP0996949A2 Split band linear prediction vocoder |
| 05/03/2000 | EP0996948A2 Transmission system using an improved signal encoder and decoder |
| 05/03/2000 | CN1252203A Predictive coding method and decoding method for dynamic image |
| 05/02/2000 | US6058362 System and method for masking quantization noise of audio signals |
| 05/02/2000 | US6058361 Two-stage Hierarchical subband coding and decoding system, especially for a digitized audio signal |
| 05/02/2000 | US6058360 Postfiltering audio signals especially speech signals |
| 05/02/2000 | US6058359 Speech coding including soft adaptability feature |
| 05/02/2000 | US6058165 Telephone apparatus with recording function |
| 05/02/2000 | US6057791 Apparatus and method for clocking digital and analog circuits on a common substrate to enhance digital operation and reduce analog sampling error |
| 05/02/2000 | CA2282613A1 Multiple message multilevel analog signal recording and playback system containing configurable analog processing functions |
| 04/27/2000 | WO2000023986A1 Method and apparatus for a tunable high-resolution spectral estimator |
| 04/27/2000 | CA2347187A1 Method and apparatus for a tunable high-resolution spectral estimator |
| 04/26/2000 | EP0996112A2 Silence compression coding/decoding method and device |
| 04/26/2000 | EP0995274A1 Audio encoder |
| 04/26/2000 | EP0995191A2 Scalable mixing for speech streaming |
| 04/26/2000 | EP0995189A1 Combined speech coder and echo canceler |
| 04/26/2000 | EP0954857A4 Audio-based wide area information system |
| 04/25/2000 | US6055497 System, arrangement, and method for replacing corrupted speech frames and a telecommunications system comprising such arrangement |
| 04/25/2000 | US6055496 Vector quantization in celp speech coder |
| 04/20/2000 | WO2000022772A1 Robust watermark method and apparatus for digital signals |
| 04/20/2000 | WO2000022771A1 Robust watermark method and apparatus for digital signals |
| 04/20/2000 | WO2000022770A1 Robust watermark method and apparatus for digital signals |
| 04/20/2000 | WO2000022745A1 Method and apparatus for embedding auxiliary data in primary data signal using frequency and time domain processing |
| 04/20/2000 | WO2000022743A1 Method and apparatus for digital signal compression without decoding |
| 04/20/2000 | WO2000022737A1 Device and method for coding data with a fire code |
| 04/20/2000 | WO2000022611A1 Method and apparatus to prepare listener-interest-filtered works |
| 04/20/2000 | WO2000022610A1 Speech parameter compression |
| 04/20/2000 | WO2000022608A1 A method of speech processing and an apparatus for processing of speech |
| 04/20/2000 | WO1999059140A8 Transmission system using an improved signal encoder and decoder |
| 04/20/2000 | DE19846723A1 Data coding and decoding device, uses Fire-code for variable redundancy coding of data for matching different data rates |
| 04/20/2000 | CA2346092A1 Method and apparatus for embedding auxiliary data in primary data signal using frequency and time domain processing |
| 04/19/2000 | EP0994569A2 Audio signal processing apparatus |
| 04/19/2000 | EP0994463A2 Post filter |
| 04/19/2000 | EP0994462A1 Excitation vector generator, speech coder & speech decoder |
| 04/19/2000 | EP0993733A2 Lossless encoding/decoding in a transmission system |
| 04/19/2000 | EP0993730A1 System and method for coding and broadcasting voice data |
| 04/19/2000 | EP0993728A1 Cellular telephone with voice dialing function |
| 04/19/2000 | EP0993704A2 Method and device for signal coding |
| 04/19/2000 | EP0993672A1 Method for voice signal coding and/or decoding by means of a long term prediction and a multipulse excitation signal |
| 04/19/2000 | EP0602224B1 Time variable spectral analysis based on interpolation for speech coding |
| 04/19/2000 | EP0450064B1 Digital speech coder having improved sub-sample resolution long-term predictor |
| 04/19/2000 | CN1250979A Audio frequency coding or decoding device, optical recording media and audio frequency transmission method |
| 04/18/2000 | US6052665 Speech input terminal and speech synthesizing terminal for television conference system |
| 04/18/2000 | US6052661 Speech encoding apparatus and speech encoding and decoding apparatus |
| 04/18/2000 | US6052660 Adaptive codebook |
| 04/18/2000 | US6052659 Nonlinear filter for noise suppression in linear prediction speech processing devices |
| 04/18/2000 | US6052658 Method of amplitude coding for low bit rate sinusoidal transform vocoder |
| 04/18/2000 | CA2017841C Digital transmission system using subband coding of a digital signal |
| 04/13/2000 | WO2000021227A1 Apparatus for, and method of, encoding a signal |
| 04/13/2000 | WO2000021077A1 Method for quantizing speech coder parameters |
| 04/13/2000 | WO2000021076A1 Method for encoding or decoding voice signal scanning values and encoder or decoder |
| 04/13/2000 | WO1999060815A8 Scalable mixing for speech streaming |
| 04/13/2000 | CA2345963A1 Apparatus for, and method of, encoding a signal |
| 04/13/2000 | CA2345373A1 Method for quantizing speech coder parameters |
| 04/12/2000 | EP0992982A2 Vector quantization codebook generation method |
| 04/12/2000 | EP0992981A2 Vector quantization codebook generation method |
| 04/12/2000 | CN1051422C Equipment for and method of analog-to-digital conversion and digital-to-analog conversion of voice signal |
| 04/12/2000 | CN1051393C Method and apparatus for reducing an undesirable characteristic of a spectral estimate of a noise signal between occurrences of voice signals |
| 04/12/2000 | CN1051392C Vector quantizer method and apparatus |
| 04/11/2000 | US6049814 Spectrum feature parameter extracting system based on frequency weight estimation function |
| 04/11/2000 | US6049771 Voice recording and reproducing apparatus using multiple ADPCM compression modes |
| 04/11/2000 | US6049765 Silence compression for recorded voice messages |
| 04/11/2000 | CA2197128C Enhanced joint stereo coding method using temporal envelope shaping |
| 04/11/2000 | CA2183860C Process for the cascade coding and decoding of audio data |
| 04/06/2000 | WO2000019686A1 Telephone with means for enhancing the subjective signal impression in the presence of noise |
| 04/06/2000 | WO2000019414A1 Audio encoding apparatus and methods |
| 04/06/2000 | WO2000019413A1 Multi-channel signal encoding and decoding |
| 04/06/2000 | WO2000019412A1 Voice communication by phoneme recognition and text to speech |
| 04/06/2000 | WO2000019411A1 System and method for processing data from and for multiple channels |
| 04/06/2000 | CA2345529A1 Voice communication by phoneme recognition and text to speech |
| 04/05/2000 | EP0991054A2 Vector quantisation codebook generation method |
| 04/05/2000 | CN1249639A Speech signal filtering device and method, receiver and telephone communication system |
| 04/05/2000 | CN1249517A System for insertion of additional information in audio data |
| 04/04/2000 | USRE36646 Speech coding system utilizing a recursive computation technique for improvement in processing speed |
| 04/04/2000 | US6047254 System and method for determining a first formant analysis filter and prefiltering a speech signal for improved pitch estimation |
| 04/04/2000 | US6047253 Method and apparatus for encoding/decoding voiced speech based on pitch intensity of input speech signal |
| 03/30/2000 | WO2000018057A1 Audio coder utilising repeated transmission of packet portion |
| 03/30/2000 | WO2000018046A1 Tandem audio compression |
| 03/30/2000 | WO2000017871A1 Copy protection method for digital data stored on a medium |