| 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) |
|---|
| 01/17/2001 | EP1069566A2 Data reproduction circuit and voice recording-reproduction apparatus comprising the circuit |
| 01/17/2001 | EP0819303B1 Predictive split-matrix quantization of spectral parameters for efficient coding of speech |
| 01/17/2001 | CN1280697A Method for voice data transmission |
| 01/17/2001 | CN1280335A Micro dispatching method and operation system inner core |
| 01/16/2001 | US6175817 Method for vector quantizing speech signals |
| 01/16/2001 | CA2156558C Speech-coding parameter sequence reconstruction by classification and contour inventory |
| 01/16/2001 | CA2027136C Perceptual coding of audio signals |
| 01/12/2001 | CA2313813A1 Method and device for storing, selecting and playing digital audio in magnetic memory and electronic security system against unauthorized copies |
| 01/11/2001 | WO2001003438A2 Mobile and hand-held broadcast video earth station terminals and methods for communicating with earth terminals via satellites |
| 01/11/2001 | WO2001003125A1 Bi-directional pitch enhancement in speech coding systems |
| 01/11/2001 | WO2001003122A1 Method for improving the coding efficiency of an audio signal |
| 01/11/2001 | WO2001003121A1 Encoding and decoding with harmonic components and minimum phase |
| 01/11/2001 | WO2001003120A1 Audio encoding with harmonic components |
| 01/11/2001 | WO2001003119A1 Audio encoding and decoding including non harmonic components of the audio signal |
| 01/11/2001 | WO2001003118A1 Audio coding and decoding by interpolation |
| 01/11/2001 | WO2001003117A1 Audio coding with adaptive liftering |
| 01/11/2001 | WO2001003116A1 Methods and device for audio analysis and synthesis |
| 01/11/2001 | WO2001003115A1 Audio decoder and coding error compensating method |
| 01/11/2001 | WO2001002968A1 Data providing system, device, and method |
| 01/11/2001 | CA2377973A1 Mobile and hand-held broadcast video earth station terminals and methods for communicating with earth terminals via satellites |
| 01/10/2001 | CN1279807A Background noise contrast reduction for handovers involving a change of speech codes |
| 01/10/2001 | CN1279556A Environment noise level evaluation apparatus and method, communication device and data terminal apparatus |
| 01/09/2001 | US6173265 Voice recording and/or reproducing method and apparatus for reducing a deterioration of a voice signal due to a change over from one coding device to another coding device |
| 01/09/2001 | US6173257 Completed fixed codebook for speech encoder |
| 01/09/2001 | US6173256 Method and apparatus for audio representation of speech that has been encoded according to the LPC principle, through adding noise to constituent signals therein |
| 01/09/2001 | US6173024 Bit stream reproducing apparatus |
| 01/09/2001 | US6172965 Duplex transmission scheme |
| 01/09/2001 | CA2029768C Method and device for coding very low flow rate vocoder predictive filters |
| 01/04/2001 | WO2001001697A1 Time-varying randomization for data synchronization and implicit information transmission |
| 01/04/2001 | WO2001001614A1 Method and system for adaptive voice buffering |
| 01/04/2001 | DE10023157A1 Vorrichtung und Verfahren zum Verarbeiten der Phaseninformation eines akustischen Signals Apparatus and method for processing the phase information of an acoustic signal |
| 01/03/2001 | EP1065655A1 High efficiency encoding method |
| 01/03/2001 | EP1065654A1 High efficiency encoding method |
| 01/03/2001 | EP1065653A2 Apparatus for background noise level estimation and volume control of a communication apparatus |
| 01/03/2001 | EP1064648A1 Wideband speech synthesis from a narrowband speech signal |
| 01/03/2001 | EP1064616A1 Data carrier provided with at least two decoding stages |
| 01/03/2001 | CN1278637A Method for coding signals |
| 01/02/2001 | US6169973 Encoding method and apparatus, decoding method and apparatus and recording medium |
| 01/02/2001 | US6169970 Generalized analysis-by-synthesis speech coding method and apparatus |
| 01/02/2001 | US6169820 Data compression process and system for compressing data |
| 01/02/2001 | CA2175264C Improved codebook searching techniques |
| 01/02/2001 | CA2169786C Frame erasure compensation techniques |
| 01/02/2001 | CA2167552C Speech encoder with features extracted from current and previous frames |
| 01/02/2001 | CA2154911C Speech coding device |
| 12/28/2000 | WO2000079709A1 Audience survey system, and systems and methods for compressing and correlating audio signals |
| 12/28/2000 | WO2000079520A1 Improving sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
| 12/28/2000 | WO2000079519A1 Audio transmission system having an improved encoder |
| 12/28/2000 | WO2000079518A1 A generalized method of encoding a hidden digital signature onto an audio signal using psychoacoustic masking |
| 12/28/2000 | CA2375853A1 Audience survey system, and systems and methods for compressing and correlating audio signals |
| 12/27/2000 | EP1063807A1 Joint source-channel coding |
| 12/27/2000 | EP1062816A1 Method of embedding compressed digital audio signals in a video signal using guard bands |
| 12/27/2000 | EP1062732A1 Efficient coding of side information in a lossless encoder |
| 12/27/2000 | EP1062661A2 Speech coding |
| 12/27/2000 | EP1062658A1 A signal processing method to analyse transients of speech signals |
| 12/27/2000 | EP1062657A2 A system and method for providing split vector quantization data coding |
| 12/27/2000 | EP0628195B1 Method for encoding, decoding and compression of audio-type data |
| 12/26/2000 | US6167530 Digital audio data accumulation device |
| 12/26/2000 | US6167417 Convolutive blind source separation using a multiple decorrelation method |
| 12/26/2000 | US6167375 Method for encoding and decoding a speech signal including background noise |
| 12/26/2000 | US6167374 Signal processing method and system utilizing logical speech boundaries |
| 12/26/2000 | US6167373 Linear prediction coefficient analyzing apparatus for the auto-correlation function of a digital speech signal |
| 12/26/2000 | US6167372 Signal identifying device, code book changing device, signal identifying method, and code book changing method |
| 12/26/2000 | US6167371 Speech filter for digital electronic communications |
| 12/26/2000 | US6166663 Architecture for inverse quantization and multichannel processing in MPEG-II audio decoding |
| 12/26/2000 | CA2021618C Method for protecting multi-pulse coders from fading and random pattern bit errors |
| 12/21/2000 | WO2000077775A1 Sound switching device |
| 12/21/2000 | WO2000077774A1 Noise signal encoder and voice signal encoder |
| 12/21/2000 | CA2376816A1 Speech switching apparatus |
| 12/21/2000 | CA2374879A1 Voice-to-remaining audio (vra) interactive hearing aid & auxiliary equipment |
| 12/20/2000 | EP1061775A2 Audio signal processing |
| 12/20/2000 | EP1061506A2 Variable rate speech coding |
| 12/20/2000 | EP1061505A1 High efficiency encoding method |
| 12/20/2000 | EP1061504A1 High efficiency encoding method |
| 12/20/2000 | EP1061503A2 Error detection and error concealment for encoded speech data |
| 12/20/2000 | EP1061502A1 A pitch extraction method |
| 12/20/2000 | EP1060593A1 Telecommunication conferencing system and method |
| 12/19/2000 | US6163803 Transmitting apparatus, receiving apparatus, recording apparatus, and reproducing apparatus |
| 12/19/2000 | CA2276202C Methods for concealing errors in an audio data stream |
| 12/19/2000 | CA2218768C System and method for enhanced intelligibility of voice messages |
| 12/19/2000 | CA2153170C Transmitted noise reduction in communications systems |
| 12/18/2000 | CA2275832A1 Method and apparatus for providing background acoustic noise during a discontinued/reduced rate transmission mode of a voice transmission system |
| 12/14/2000 | WO2000075928A1 Opitical disk, and method and device for recording/reproducing data on/from optical disk |
| 12/14/2000 | WO2000075919A1 Methods and apparatus for generating comfort noise using parametric noise model statistics |
| 12/14/2000 | DE19925264A1 Verfahren und Anordnung zur Übertragung von mit Individualmerkmalen behafteten Datensignalen, insbesondere Sprachsignalen Method and apparatus for transmitting afflicted with Individual characteristics data signals, particularly speech signals |
| 12/13/2000 | EP1059749A2 Method of receiving and reproducing a first audio signal, and of reproducing, in response to user action, a second audio signal which has been received together with the first signal |
| 12/13/2000 | EP1059627A1 Voice analysis-synthesis method |
| 12/13/2000 | EP1058927A1 Speech coding including soft adaptability feature |
| 12/13/2000 | CN2410710Y Picture/voice front-end processor |
| 12/13/2000 | CN1276936A Post-compression hidden data transport for video |
| 12/13/2000 | CN1276903A Frame-based audio coding with additional filterbank to suppress aliasing artifacts at frame boundaries |
| 12/13/2000 | CN1276898A Reducing sparseness in coded speech signals |
| 12/13/2000 | CN1276687A Playback of one audio while playback of another audio to respond user operation |
| 12/12/2000 | US6161091 Speech recognition-synthesis based encoding/decoding method, and speech encoding/decoding system |
| 12/12/2000 | US6161089 Multi-subframe quantization of spectral parameters |
| 12/12/2000 | US6161088 Method and system for encoding a digital audio signal |
| 12/12/2000 | US6161086 Low-complexity speech coding with backward and inverse filtered target matching and a tree structured mutitap adaptive codebook search |
| 12/12/2000 | US6161085 Method and arrangement for adding a new speech encoding method to an existing telecommunication system |
| 12/12/2000 | US6161013 Wireless communication system and method |
| 12/12/2000 | CA2189134C A pitch post-filter |
| 12/07/2000 | WO2000074059A1 A semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium |