| 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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| 07/28/1999 | EP0931310A1 Systems and methods for communicating desired audio information over a communications medium |
| 07/28/1999 | EP0739569B1 System and method for transmitting picture or sound signals |
| 07/28/1999 | CN1224523A Audio signal encoder, audio signal decoder, and method for encoding and decoding audio signal |
| 07/27/1999 | US5930518 Arithmetic unit |
| 07/27/1999 | US5930451 Audio and video reproduction system comprising audio reproduction time adjusting unit |
| 07/27/1999 | US5930373 Method and system for enhancing quality of sound signal |
| 07/27/1999 | US5930369 Secure spread spectrum watermarking for multimedia data |
| 07/27/1999 | US5928379 Voice-coded data error processing apparatus and method |
| 07/22/1999 | WO1999037028A1 Vibration wave encoding method and method |
| 07/22/1999 | WO1999037020A1 Method and apparatus for spread spectrum pilot extraction for rf amplifiers |
| 07/22/1999 | WO1999036906A1 Method for speech coding under background noise conditions |
| 07/22/1999 | WO1999036905A1 Information distributing apparatus, information transmitting apparatus, information receiving apparatus, and information distributing method |
| 07/21/1999 | EP0930608A1 Vocoder with efficient, fault tolerant excitation vector encoding |
| 07/21/1999 | EP0929891A1 Methods and devices for noise conditioning signals representative of audio information in compressed and digitized form |
| 07/21/1999 | EP0574523B1 Variable bit rate speech encoder |
| 07/20/1999 | US5926789 Audio-based wide area information system |
| 07/20/1999 | US5926788 Method and apparatus for reproducing speech signals and method for transmitting same |
| 07/20/1999 | US5926786 Digital signal processor |
| 07/20/1999 | US5926785 Speech encoding method and apparatus including a codebook storing a plurality of code vectors for encoding a speech signal |
| 07/20/1999 | US5925146 Reception data expander having noise reduced in generation of reception data error |
| 07/15/1999 | WO1999035639A1 A vocoder-based voice recognizer |
| 07/15/1999 | WO1999035638A1 A system and method for encoding voice while suppressing acoustic background noise |
| 07/15/1999 | WO1999035009A1 Vehicle computer system with audio entertainment system |
| 07/15/1999 | WO1999022561A3 A method and apparatus for audio representation of speech that has been encoded according to the lpc principle, through adding noise to constituent signals therein |
| 07/15/1999 | WO1999022366A3 Improved audio reproduction arrangement and telephone terminal |
| 07/14/1999 | EP0929065A2 A modular approach to speech enhancement with an application to speech coding |
| 07/14/1999 | EP0928521A1 Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters |
| 07/14/1999 | EP0697125B1 Process for vector quantization, especially of voice signals |
| 07/14/1999 | EP0697123B1 Process for conditioning data, especially coded voice signal parameters |
| 07/14/1999 | CN1223034A Speech transmission system |
| 07/14/1999 | CN1222997A Audio signal coding and decoding method and audio signal coder and decoder |
| 07/14/1999 | CN1222996A Transmission system for transmitting speech signals |
| 07/14/1999 | CN1222995A Communication network for transmitting speech signals |
| 07/14/1999 | CN1222993A Variable bitrate speech transmission system |
| 07/14/1999 | CN1222709A Storage and reproduction apparatus |
| 07/14/1999 | CA2258430A1 Voice coding apparatus, voice decoding apparatus and voice coding and decoding system |
| 07/13/1999 | US5924065 Computerized method |
| 07/13/1999 | US5924064 Variable length coding using a plurality of region bit allocation patterns |
| 07/13/1999 | US5924063 Celp-type speech encoder having an improved long-term predictor |
| 07/13/1999 | US5924062 ACLEP codec with modified autocorrelation matrix storage and search |
| 07/13/1999 | US5924061 Method of coding a speech signal |
| 07/13/1999 | US5924060 Digital coding process for transmission or storage of acoustical signals by transforming of scanning values into spectral coefficients |
| 07/13/1999 | CA2254620A1 Vocoder with efficient, fault tolerant excitation vector encoding |
| 07/08/1999 | WO1999034543A1 Coded data output device and method |
| 07/08/1999 | WO1999034354A1 Sound encoding method and sound decoding method, and sound encoding device and sound decoding device |
| 07/08/1999 | CA2722196A1 A method for speech coding, method for speech decoding and their apparatuses |
| 07/07/1999 | EP0927988A2 Encoding speech |
| 07/07/1999 | EP0927468A2 Method to store information on a chip card and device to carry out said method |
| 07/07/1999 | EP0818037B1 Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase |
| 07/07/1999 | EP0754374B1 Compact source coding tables for encoder/decoder system |
| 07/06/1999 | US5920840 Communication system and method using a speaker dependent time-scaling technique |
| 07/06/1999 | US5920832 CELP coding with two-stage search over displaced segments of a one-dimensional codebook |
| 07/06/1999 | CA2166042C Decoder for audio signals belonging to compressed and coded audiovisual streams |
| 07/01/1999 | WO1999021174A8 Sound encoder and sound decoder |
| 06/30/1999 | EP0926660A2 Speech encoding/decoding method |
| 06/30/1999 | EP0926659A2 Speech encoding and decoding method |
| 06/30/1999 | EP0926658A1 Information decoder and decoding method, information encoder and encoding method, and distribution medium |
| 06/30/1999 | EP0925580A2 Transmitter with an improved speech encoder and decoder |
| 06/30/1999 | CN1221292A Audio data decoder |
| 06/30/1999 | CN1221169A Coding method and apparatus, and decoding method and apparatus |
| 06/30/1999 | CN1043944C Switched signal processing circuit |
| 06/29/1999 | US5918203 Method and device for determining the tonality of an audio signal |
| 06/29/1999 | US5917835 To convey digital audio data from a server to a client to minimize errors |
| 06/24/1999 | WO1999031895A1 Data transmission over a coded voice channel |
| 06/24/1999 | WO1999020021A3 Speech transmission between terminals in different networks |
| 06/23/1999 | EP0924962A1 Encoding method and device, decoding method and device, and recording medium |
| 06/23/1999 | EP0924708A2 MPEG portable sond reproducing system and a reproducing method thereof |
| 06/23/1999 | CN1220558A Method of allocating vocoder resources in mobile communication system |
| 06/22/1999 | US5915237 Representing speech using MIDI |
| 06/22/1999 | US5915234 Method and apparatus for CELP coding an audio signal while distinguishing speech periods and non-speech periods |
| 06/17/1999 | WO1999030421A1 Audio codec with agc controlled by a vocoder |
| 06/17/1999 | WO1999018565A3 Speech coding |
| 06/16/1999 | EP0922278A1 Variable bitrate speech transmission system |
| 06/16/1999 | EP0850470B1 Vector quantization method for low bit rate vocoders |
| 06/15/1999 | US5913198 Computer-implemented data-processing method |
| 06/15/1999 | US5913191 Method for signal processing |
| 06/15/1999 | US5913189 Voice compression system having robust in-band tone signaling and related method |
| 06/15/1999 | US5913187 In an audio signal processing apparatus |
| 06/15/1999 | CA2161263C Process for determining the type of coding to be selected for coding at least two signals |
| 06/10/1999 | WO1999029114A1 Electronic watermarking in the compressed domain utilizing perceptual coding |
| 06/10/1999 | WO1999028912A2 A method and device for interfacing variable-rate sampled digital audio information to a string of uniform-sized blocks, and a unitary medium so produced by a write-interfacing |
| 06/10/1999 | WO1999014866A3 Transmission system with improved reconstruction of missing parts |
| 06/09/1999 | EP0921650A1 Audio data decoder with internal stereo decoder and external multichannel decoder |
| 06/09/1999 | EP0921641A2 Voice control system and navigation system using same |
| 06/09/1999 | EP0920693A1 Method and apparatus for improving the voice quality of tandemed vocoders |
| 06/09/1999 | EP0801788B1 Speech coding method using synthesis analysis |
| 06/09/1999 | EP0661821B1 Encoding and decoding apparatus causing no deterioration of sound quality even when sinewave signal is encoded |
| 06/09/1999 | EP0501420B1 Speech coding method and system |
| 06/09/1999 | CN1219048A Method for unloading data to add functions to vecoder |
| 06/08/1999 | US5911130 Audio signal compression and decompression utilizing amplitude, frequency, and time information |
| 06/08/1999 | US5911128 Method and apparatus for performing speech frame encoding mode selection in a variable rate encoding system |
| 06/03/1999 | WO1999027521A1 Speech coding method and terminals for implementing said method |
| 06/02/1999 | EP0920127A2 Speech band division decoder |
| 06/02/1999 | EP0919989A1 Audio signal encoder, audio signal decoder, and method for encoding and decoding audio signal |
| 06/02/1999 | EP0919988A2 Speech playback speed change using wavelet coding preferably sub-band coding |
| 06/02/1999 | EP0919931A2 Method for transmitting a digital audio signal |
| 06/02/1999 | CN1218344A Voice transmitter |
| 06/02/1999 | CN1218339A Scalable audio encoding/decoding method and apparatus |
| 06/02/1999 | CN1218334A Scalable stereo audio encoding/decoding method and apparatus |
| 06/02/1999 | CN1218258A MPEG portable sound reproducing system and reproducing method thereof |