| 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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| 12/18/2001 | US6332175 Low power system and method for playing compressed audio data |
| 12/18/2001 | US6332119 Adjustable CODEC with adjustable parameters |
| 12/18/2001 | CA2246901C A method for improving performance of a voice coder |
| 12/18/2001 | CA2209409C Adaptive speech filter |
| 12/13/2001 | WO2001095313A1 Audible error detector and controller utilizing channel quality data and iterative synthesis |
| 12/13/2001 | WO2001095311A1 Method and apparatus for mitigating the effect of transmission errors in a distributed speech recognition process and system |
| 12/13/2001 | WO2001095206A1 Recording medium, license management apparatus, and recording and playback apparatus |
| 12/13/2001 | WO2001041124A3 Method of and system for coding and decoding sound signals |
| 12/13/2001 | WO2001035394A3 Integrated voice and data transmission based on bit importance ranking |
| 12/13/2001 | US20010051873 Synthesis of speech from pitch prototype waveforms by time-synchronous waveform interpolation |
| 12/13/2001 | US20010051869 Method for operating a voice function in a dual-mode radio mobile terminal |
| 12/13/2001 | US20010050991 Portable audio devices |
| 12/13/2001 | US20010050959 Encoder and communication device |
| 12/13/2001 | US20010050627 Signal processing circuit |
| 12/13/2001 | DE10016153A1 Digitized audio/video data reduction method for data storage and transmission, involves generating dynamic envelope parameters for removing dynamic redundancy in digital signal |
| 12/12/2001 | EP1162604A1 High quality speech coder at low bit rates |
| 12/12/2001 | EP1162603A1 High quality speech coder at low bit rates |
| 12/12/2001 | EP1162601A2 Variable rate vocoder |
| 12/12/2001 | EP1161805A1 Synchronization of voice packet generation to unsolicited grants in a docsis cable modem voice over packet telephone |
| 12/12/2001 | EP1023730B1 Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries |
| 12/12/2001 | EP0693828B1 Data encoding method and apparatus, data decoding method and apparatus, data recording medium, and data transmission method |
| 12/12/2001 | CN1326583A Mitigating errors in distributed speech recognition process |
| 12/12/2001 | CN1326269A Transmitting system for carrying different encoding principles |
| 12/11/2001 | US6330673 Determination of a best offset to detect an embedded pattern |
| 12/11/2001 | US6330672 Method and apparatus for watermarking digital bitstreams |
| 12/11/2001 | US6330535 Method for providing excitation vector |
| 12/11/2001 | US6330534 Excitation vector generator, speech coder and speech decoder |
| 12/11/2001 | US6330533 Speech encoder adaptively applying pitch preprocessing with warping of target signal |
| 12/11/2001 | US6330532 Method and apparatus for maintaining a target bit rate in a speech coder |
| 12/11/2001 | US6330531 Comb codebook structure |
| 12/11/2001 | US6330335 Audio steganography |
| 12/06/2001 | WO2001093488A1 Error detection and error concealment for encoded speech data |
| 12/06/2001 | WO2001093266A1 Coded information on cd audio |
| 12/06/2001 | WO2001093251A1 Transmitter for transmitting a signal encoded in a narrow band, and receiver for extending the band of the signal at the receiving end |
| 12/06/2001 | WO2001052411A3 Generating coefficients for a prediction filter in an encoder |
| 12/06/2001 | WO2001022775A3 Subband acoustic feedback cancellation in hearing aids |
| 12/06/2001 | US20010049792 Recording medium having encrypted sound data recorded therein and information processor |
| 12/06/2001 | US20010049788 Method and apparatus for watermarking digital bitstreams |
| 12/06/2001 | US20010049665 Master digital data creation device and digital data reproduction device |
| 12/06/2001 | US20010049598 Low bit-rate coding of unvoiced segments of speech |
| 12/06/2001 | US20010048808 Apparatus for reproduction of video and audio with suspension function |
| 12/06/2001 | US20010048677 Mobile wireless internet portable radio |
| 12/05/2001 | EP1161095A2 Apparatus for reproduction of video and audio with suspension function |
| 12/05/2001 | EP1161020A2 Method and apparatus for generating channel error flags for error mitigation and/or concealment in source decoders |
| 12/05/2001 | EP1160977A2 Method and apparatus for reducing aliasing in cascaded filter banks |
| 12/05/2001 | EP1160771A1 Code-excited linear predictive coder and decoder with conversion filter for converting stochastic and impulsive excitation signals |
| 12/05/2001 | EP1160770A2 Perceptual coding of audio signals using separated irrelevancy reduction and redundancy reduction |
| 12/05/2001 | EP1160769A2 Method and apparatus for representing masked thresholds in a perceptual audio coder |
| 12/05/2001 | EP1160768A2 Robust features extraction for speech processing |
| 12/05/2001 | EP1159740A1 A method and apparatus for pre-processing speech signals prior to coding by transform-based speech coders |
| 12/05/2001 | EP1159739A1 Method and apparatus for eighth-rate random number generation for speech coders |
| 12/05/2001 | EP1159738A1 Speech synthesizer based on variable rate speech coding |
| 12/05/2001 | CN1325529A Adaptive criterion for speech coding |
| 12/04/2001 | US6327689 ECC scheme for wireless digital audio signal transmission |
| 12/04/2001 | US6327657 Method and apparatus for creating electronic water marks in digital data |
| 12/04/2001 | US6327563 Wireless microphone system |
| 12/04/2001 | US6327562 Method and device for coding an audio signal by “forward” and “backward” LPC analysis |
| 12/04/2001 | CA2080572C Quantization process for a predictor filter for vocoder of very low bit rate |
| 11/29/2001 | WO2001091409A1 Software encoder for encoding digital audio streams |
| 11/29/2001 | WO2001091314A2 Method and means for receiving a digital transmission comprising a plurality of digital audio signals and for simultaneous reproduction of these signals as analog audio programmes |
| 11/29/2001 | WO2001091113A1 Transmitter for transmitting a signal encoded in a narrow band, and receiver for extending the band of the encoded signal at the receiving end, and corresponding transmission and receiving methods, and system |
| 11/29/2001 | WO2001091112A1 Gains quantization for a clep speech coder |
| 11/29/2001 | WO2001091111A1 Improved spectral translation/folding in the subband domain |
| 11/29/2001 | WO2000063885A9 Method and apparatus for performing packet loss or frame erasure concealment |
| 11/29/2001 | US20010047267 Data reproduction device, method thereof and storage medium |
| 11/29/2001 | US20010046843 Transmission of comfort noise parameters during discontinuous transmission |
| 11/28/2001 | EP1158682A2 Methods and apparatus for decoding of general codes on probability dependency graphs |
| 11/28/2001 | EP1158495A2 Wideband speech coding system and method |
| 11/28/2001 | EP1158494A1 Method and apparatus for performing audio coding and decoding by interleaving smoothed critical band evelopes at higher frequencies |
| 11/28/2001 | EP1158493A2 Concealing packet losses in a Voice of IP (VOIP) tranmission |
| 11/28/2001 | EP1157573A1 ARRANGEMENT FOR IMPROVING THE SPEECH QUALITY, ESPECIALLY FOR VoIP (VOICE OVER IP) CALLS |
| 11/28/2001 | EP1157382A1 Embedding a first digital information signal into a second digital information signal for transmission via a transmission medium |
| 11/28/2001 | EP1157377A1 Speech enhancement with gain limitations based on speech activity |
| 11/28/2001 | EP1157375A1 Celp transcoding |
| 11/28/2001 | EP1157374A2 Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting |
| 11/28/2001 | EP1018117B1 Audio-player and method for controlling audio data using said audio-player |
| 11/28/2001 | EP0821824B1 A method to determine the excitation pulse positions within a speech frame |
| 11/28/2001 | EP0615674B1 Network echo canceller |
| 11/28/2001 | CN1324204A Variable-speed data circuit multiplex device having direct linkage passage function |
| 11/28/2001 | CN1075653C Audio signal decoding apparatus and method for disk driving system |
| 11/27/2001 | US6324573 Linking of computers using information steganographically embedded in data objects |
| 11/27/2001 | US6324515 Method and apparatus for asymmetric communication of compressed speech |
| 11/27/2001 | US6324505 Amplitude quantization scheme for low-bit-rate speech coders |
| 11/27/2001 | US6324504 System and method for bit interleaving of full-rate speech data |
| 11/27/2001 | US6324503 Method and apparatus for providing feedback from decoder to encoder to improve performance in a predictive speech coder under frame erasure conditions |
| 11/22/2001 | WO2001089086A1 Spectrum modeling |
| 11/22/2001 | WO2001088915A1 Adding imperceptible noise to audio and other types of signals to cause significant degradation when compressed and decompressed |
| 11/22/2001 | WO2001088904A1 Audio coding |
| 11/22/2001 | WO2001088883A1 Digital watermarking method and apparatus using a color image as a watermark |
| 11/22/2001 | WO2001088675A1 Secured internet media player |
| 11/22/2001 | WO2001065761A9 Method to detect and conceal corrupted signal parameters in coded speech communication |
| 11/22/2001 | US20010044727 Audio signal compression method, audio signal compression apparatus, speech signal compression method, speech signal compression apparatus, speech recognition method, and speech recognition apparatus |
| 11/22/2001 | US20010044725 Information processing apparatus, an information processing method, and a medium for use in a three-dimensional virtual reality space sharing system |
| 11/22/2001 | US20010044721 Converting apparatus of voice signal by modulation of frequencies and amplitudes of sinusoidal wave components |
| 11/22/2001 | US20010044719 Method and system for recognizing, indexing, and searching acoustic signals |
| 11/22/2001 | US20010044717 Recursively excited linear prediction speech coder |
| 11/22/2001 | US20010044716 Encoding and decoding system using code books |
| 11/22/2001 | US20010044715 Voice data recording and reproducing device employing differential vector quantization with simplified prediction |
| 11/22/2001 | US20010044712 Method and arrangement for changing source signal bandwidth in a telecommunication connection with multiple bandwidth capability |
| 11/22/2001 | US20010043798 Recording medium for storing encrypted audio data, apparatus for and method of recording the same, and apparatus for and method of reproducing the same |