| 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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| 02/20/2001 | US6192335 Adaptive combining of multi-mode coding for voiced speech and noise-like signals |
| 02/20/2001 | US6192334 Audio encoding apparatus and audio decoding apparatus for encoding in multiple stages a multi-pulse signal |
| 02/20/2001 | US6192257 Wireless communication terminal having video image capability |
| 02/20/2001 | CA2183283C An improved rcelp coder |
| 02/15/2001 | WO2001011840A1 Method and apparatus supporting tdd/tty modulation over vocoded channels |
| 02/15/2001 | WO2001011610A1 Factorial packing method and apparatus for information coding |
| 02/15/2001 | WO2001011609A1 Scalable coding method for high quality audio |
| 02/15/2001 | WO2001011608A1 Voice decoder and method for detecting channel errors |
| 02/15/2001 | WO2001011588A2 A method and system for illustrating sound and text |
| 02/15/2001 | CA2379973A1 Method and apparatus supporting tdd/tty modulation over vocoded channels |
| 02/15/2001 | CA2378991A1 Scalable coding method for high quality audio |
| 02/14/2001 | EP1076336A2 Method and device for storing, selecting and playing digital audio in magnetic memory and electronic security system against unauthorized copies |
| 02/14/2001 | EP1076297A1 Method for fast Fourier transformation of audio signals |
| 02/14/2001 | EP1076295A1 Method and encoder for bit-rate saving encoding of audio signals |
| 02/14/2001 | CN1284192A Electronic watermark applied to one-dimensional data |
| 02/14/2001 | CN1283904A Speech decording appts |
| 02/13/2001 | US6188987 Providing auxiliary information with frame-based encoded audio information |
| 02/13/2001 | US6188980 Synchronized encoder-decoder frame concealment using speech coding parameters including line spectral frequencies and filter coefficients |
| 02/13/2001 | US6188884 Telephony device comprising a digital processing element for speech signals and method implemented in such a device |
| 02/13/2001 | CA2185745C Synthesis of speech signals in the absence of coded parameters |
| 02/13/2001 | CA2185731C Speech signal quantization using human auditory models in predictive coding systems |
| 02/13/2001 | CA2165484C A low rate multi-mode celp codec that uses backward prediction |
| 02/08/2001 | WO2001010065A1 Acoustic communication system |
| 02/08/2001 | WO2001009889A1 System and method for marking of audio data |
| 02/08/2001 | WO2001009880A1 Multimode vselp speech coder |
| 02/08/2001 | WO2001009878A1 Speech coding with voice activity detection for accommodating music signals |
| 02/08/2001 | WO2001003125B1 Bi-directional pitch enhancement in speech coding systems |
| 02/08/2001 | DE19715126C2 Sprachsignal-Codiervorrichtung A speech signal encoder device |
| 02/07/2001 | EP1074978A1 Vector quantization codebook generation method |
| 02/07/2001 | EP1074977A1 Vector quantization codebook generation method |
| 02/07/2001 | EP1074976A2 Block switching based subband audio coder |
| 02/07/2001 | EP1074975A2 Method for decoding an audio signal with transmission error concealment |
| 02/07/2001 | EP1074972A2 Speech synthesis using multimode coded units |
| 02/07/2001 | EP1074135A2 Method and apparatus of supporting an audio protocol in a network |
| 02/07/2001 | EP1074126A2 Variable bit rate transmission of av signal in packet network |
| 02/07/2001 | EP1074125A2 Alternating speech and data transmission in digital communications systems |
| 02/07/2001 | EP1074088A1 Method for converting the scanning rate |
| 02/07/2001 | EP1074020A1 System and method for efficient time-domain aliasing cancellation |
| 02/07/2001 | EP1073966A1 Multimedia analysis in intelligent video system |
| 02/07/2001 | EP1046154A4 A vocoder-based voice recognizer |
| 02/07/2001 | EP1019868A4 Computer system linked by using information in data objects |
| 02/07/2001 | CN1283366A Apparatus and method for partial buffering transmitted data to provide robust error recovery in lossy transmission environment |
| 02/07/2001 | CN1283298A Sound encoding method, sound decoding method, and sound encoding device and sound decoding device |
| 02/07/2001 | CN1283287A Apparatus and method for providing robust error recovery for errors that occur in lossy transmission environment |
| 02/07/2001 | CN1283007A Decoding method and equipment and program facility medium |
| 02/07/2001 | CN1282952A Speech coding method and device, input signal discrimination method, speech decoding method and device and progrom providing medium |
| 02/06/2001 | US6185539 Process of low sampling rate digital encoding of audio signals |
| 02/06/2001 | US6185537 Hands-free audio memo system and method |
| 02/06/2001 | US6185526 Speech transmission and reception system for digital communication |
| 02/06/2001 | US6185525 Method and apparatus for digital signal compression without decoding |
| 02/06/2001 | US6185424 System for TDMA mobile-to-mobile VSELP CODEC bypass |
| 02/06/2001 | CA2177421C Pitch delay modification during frame erasures |
| 02/01/2001 | WO2001008136A1 Method for decreasing the processing capacity required by speech encoding and a network element |
| 01/31/2001 | EP1073222A2 Method of delivering information in a digital broadcasting system using multiple bitstreams |
| 01/31/2001 | EP1073209A2 Subband encoding and decoding system for data compression and decompression |
| 01/31/2001 | EP1073039A2 Speech decoder with gain processing |
| 01/31/2001 | EP1073038A2 Bit allocation for subband audio coding without masking analysis |
| 01/31/2001 | EP1072036A1 Fast frame optimisation in an audio encoder |
| 01/31/2001 | EP1025536A4 System and method for performing wavelet-like and inverse wavelet-like transformations of digital data |
| 01/30/2001 | US6182043 Dictation system which compresses a speech signal using a user-selectable compression rate |
| 01/30/2001 | US6182035 Method and apparatus for detecting voice activity |
| 01/30/2001 | US6182034 System and method for producing a fixed effort quantization step size with a binary search |
| 01/30/2001 | US6182033 Modular approach to speech enhancement with an application to speech coding |
| 01/30/2001 | US6182031 Scalable audio coding system |
| 01/30/2001 | US6182030 Enhanced coding to improve coded communication signals |
| 01/30/2001 | US6181753 Echo/noise canceler with delay compensation |
| 01/30/2001 | US6181716 Synchronization of voice packet generation to unsolicited grants in a DOCSIS cable modem voice over packet telephone |
| 01/30/2001 | CA2205093C Signal coder |
| 01/28/2001 | CA2600284A1 Speech signal decoding method and apparatus |
| 01/25/2001 | WO2001006495A1 Method and apparatus for interleaving line spectral information quantization methods in a speech coder |
| 01/25/2001 | WO2001006494A1 Method and apparatus for identifying frequency bands to compute linear phase shifts between frame prototypes in a speech coder |
| 01/25/2001 | WO2001006493A1 Spectral magnitude quantization for a speech coder |
| 01/25/2001 | WO2001006492A1 Method and apparatus for subsampling phase spectrum information |
| 01/25/2001 | WO2001006491A1 Method and apparatus for providing feedback from decoder to encoder to improve performance in a predictive speech coder under frame erasure conditions |
| 01/25/2001 | WO2001006490A1 Method and apparatus for maintaining a target bit rate in a speech coder |
| 01/25/2001 | WO2001006488A1 Method for digitally recording an analog audio signal with automatic indexing |
| 01/25/2001 | WO2000060901A3 Audio peripheral device comprising usb interface and digital audio mixer |
| 01/25/2001 | DE19933541A1 Verfahren zur digitalen Aufzeichnung eines analogen Audio-Signals mit automatischer Indexierung Method for digitally recording an analog audio signal with automatic indexing |
| 01/25/2001 | DE19921122C1 Verfahren und Vorrichtung zum Verschleiern eines Fehlers in einem codierten Audiosignal und Verfahren und Vorrichtung zum Decodieren eines codierten Audiosignals Method and apparatus for concealing an error in an encoded audio signal and method and apparatus for decoding an encoded audio signal |
| 01/25/2001 | CA2380992A1 Method and apparatus for identifying frequency bands to compute linear phase shifts between frame prototypes in a speech coder |
| 01/24/2001 | EP1071082A2 Vector quantization codebook generation method |
| 01/24/2001 | EP1071081A2 Vector quantization codebook generation method |
| 01/24/2001 | EP1071080A2 Vector quantization codebook generation method |
| 01/24/2001 | EP1071079A2 Vector quantization codebook generation method |
| 01/24/2001 | EP1071078A2 Vector quantization codebook generation method |
| 01/24/2001 | EP1071077A2 Vector quantization codebook generation method |
| 01/24/2001 | EP1071076A1 Communication system, receiver, device and method for channel error correction |
| 01/24/2001 | EP1070438A1 Low bit-rate spatial coding method and system |
| 01/24/2001 | EP1070390A1 Convolutive blind source separation using a multiple decorrelation method |
| 01/24/2001 | CN1281328A Video frequency signal processor |
| 01/24/2001 | CN1281299A Communication system, receiver, device and method of correcting error of information channel |
| 01/24/2001 | CN1281222A Data replay circuit and sound recording and displaying device possessing said circuit |
| 01/24/2001 | CN1061192C Method and system for audio information dissemination using various transmission modes |
| 01/23/2001 | CA2202825C Speech coder |
| 01/18/2001 | WO2001005074A2 Method for preparing audio data in source code and transmitter and receiver for executing same |
| 01/18/2001 | WO2001004871A1 Musical instrument digital recording device with interference |
| 01/18/2001 | WO2001004734A2 Portable information terminal, method of processing audio data, recording medium, and program |
| 01/18/2001 | DE19932062A1 Verfahren zur Aufbereitung von quellcodierten Audiodaten sowie Sender und Empfänger hierzu Method for conditioning source-encoded audio data as well as transmitter and receiver for this purpose |
| 01/18/2001 | CA2343374A1 Portable information terminal, method of processing audio data, recording medium, and program |
| 01/17/2001 | EP1069570A1 Remote management system for at least one audio-visual reproduction apparatus |