| 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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| 02/22/2000 | US6029129 Quantizing audio data using amplitude histogram |
| 02/22/2000 | US6029128 Speech synthesizer |
| 02/22/2000 | US6029127 Method and apparatus for compressing audio signals |
| 02/22/2000 | US6029126 Scalable audio coder and decoder |
| 02/22/2000 | US6029125 Reducing sparseness in coded speech signals |
| 02/17/2000 | WO2000008633A1 Exciting signal generator, voice coder, and voice decoder |
| 02/17/2000 | WO2000008631A1 System and method for implementing a refined psycho-acoustic modeler |
| 02/17/2000 | WO1999060815A3 Scalable mixing for speech streaming |
| 02/17/2000 | WO1999059140A3 Transmission system using an improved signal encoder and decoder |
| 02/16/2000 | EP0980064A1 Method for carrying an automatic judgement of the transmission quality of audio signals |
| 02/16/2000 | EP0979506A1 Apparatus and method for rate determination in a communication system |
| 02/16/2000 | CN1244944A Method and device for interfacing variable-rate sampled digital audio information to a string of uniform-sized blocks |
| 02/15/2000 | US6026361 Speech intelligibility testing system |
| 02/15/2000 | US6026360 Speech transmission/reception system in which error data is replaced by speech synthesized data |
| 02/15/2000 | US6026357 First formant location determination and removal from speech correlation information for pitch detection |
| 02/15/2000 | US6026356 Methods and devices for noise conditioning signals representative of audio information in compressed and digitized form |
| 02/15/2000 | US6026193 Video steganography |
| 02/10/2000 | WO2000007397A1 Method for transmitting digital useful data |
| 02/10/2000 | WO2000007356A2 Digital watermarks and methods for security documents |
| 02/10/2000 | WO2000007303A1 Method for inserting auxiliary data in an audio data stream |
| 02/10/2000 | CA2338531A1 Method for inserting auxiliary data in an audio data stream |
| 02/09/2000 | EP0978948A1 Coding device and coding method, decoding device and decoding method, program recording medium, and data recording medium |
| 02/09/2000 | EP0978172A1 Method for masking defects in a stream of audio data |
| 02/09/2000 | EP0978070A2 Computer-based patient record and message delivery system |
| 02/08/2000 | US6023672 Speech coder |
| 02/08/2000 | US6023671 Voiced/unvoiced decision using a plurality of sigmoid-transformed parameters for speech coding |
| 02/08/2000 | US6023490 Encoding apparatus for encoding a plurality of information signals |
| 02/08/2000 | CA2135629C Multi-segment vector quantizer for a speech coder suitable for use in a radiotelephone |
| 02/03/2000 | WO2000005828A1 Communication system with fast control traffic |
| 02/03/2000 | WO1999059282A3 Delayed packet concealment method and apparatus |
| 02/03/2000 | DE19833318A1 Verfahren zur Übertragung von digitalen Nutzdaten Method for transmitting digital useful data |
| 02/03/2000 | CA2338451A1 Communication system with fast control traffic |
| 02/02/2000 | EP0976126A2 Method and apparatus in coding digital information |
| 02/02/2000 | CN1243621A Transmission system with improved recombination function of lost part |
| 02/01/2000 | US6021386 Coding method and apparatus for multiple channels of audio information representing three-dimensional sound fields |
| 02/01/2000 | US6021385 System for detecting defective speech frames in a receiver by calculating the transmission quality of an included signal within a GSM communication system |
| 02/01/2000 | US6021333 Method and system for transferring information within a mobile communication system |
| 02/01/2000 | US6021325 Mobile telephone having continuous recording capability |
| 02/01/2000 | CA2137756C Voice coder and a method for searching codebooks |
| 01/27/2000 | WO2000004662A1 System and method for encoding an audio signal, by adding an inaudible code to the audio signal, for use in broadcast programme identification systems |
| 01/27/2000 | WO1999062057A3 Transmission system with improved speech encoder |
| 01/27/2000 | CA2819752A1 System and method for encoding an audio signal, by adding an inaudible code to the audio signal, for use in broadcast programme identification systems |
| 01/27/2000 | CA2685335A1 System and method for encoding an audio signal, by adding an inaudible code to the audio signal, for use in broadcast programme identification systems |
| 01/26/2000 | EP0974191A1 Method and apparatus for spread spectrum pilot extraction for rf amplifiers |
| 01/26/2000 | CN1242898A Speech transmission between terminals in different networks |
| 01/26/2000 | CN1242860A Sound encoder and sound decoder |
| 01/25/2000 | US6018707 Vector quantization method, speech encoding method and apparatus |
| 01/25/2000 | US6018706 Pitch determiner for a speech analyzer |
| 01/25/2000 | CA2152513C Excitation signal encoding method and device capable of encoding with high quality |
| 01/20/2000 | WO2000003385A1 Voice encoding/decoding device |
| 01/20/2000 | WO2000003299A1 Selectively attachable sound storage device |
| 01/20/2000 | WO2000003298A1 Printed image with related sound |
| 01/20/2000 | CA2337063A1 Voice coding/decoding apparatus |
| 01/19/2000 | EP0972426A1 Apparatus and method for bass enhancement |
| 01/19/2000 | CN1241844A Lossless encodng and decoding system |
| 01/19/2000 | CN1241843A Multi-channel subband synthesis filter for MPEG audio |
| 01/18/2000 | US6016473 Low bit-rate spatial coding method and system |
| 01/18/2000 | US6016469 Process for the vector quantization of low bit rate vocoders |
| 01/18/2000 | US6016468 Generating the variable control parameters of a speech signal synthesis filter |
| 01/18/2000 | US6016111 Digital data coding/decoding method and apparatus |
| 01/13/2000 | WO2000002357A1 Transcoders for fixed and variable rate data streams |
| 01/13/2000 | WO1999060756A3 Variable bit rate transmission of av signal in packet network |
| 01/12/2000 | EP0971338A1 Method and device for coding lag parameter and code book preparing method |
| 01/12/2000 | EP0971337A1 Method and device for emphasizing pitch |
| 01/12/2000 | EP0971260A1 Printed image with related sound |
| 01/12/2000 | EP0910928B1 Coding and decoding of audio signals by using intensity stereo and prediction processes |
| 01/12/2000 | EP0910927B1 Process for coding and decoding stereophonic spectral values |
| 01/12/2000 | CN1240978A Audio signal encoding device, decoding device and audio signal encoding-decoding device |
| 01/11/2000 | US6014623 Method of encoding synthetic speech |
| 01/11/2000 | US6014622 Low bit rate speech coder using adaptive open-loop subframe pitch lag estimation and vector quantization |
| 01/11/2000 | US6014621 Synthesis of speech signals in the absence of coded parameters |
| 01/11/2000 | US6014619 Reduced complexity signal transmission system |
| 01/11/2000 | US6014618 LPAS speech coder using vector quantized, multi-codebook, multi-tap pitch predictor and optimized ternary source excitation codebook derivation |
| 01/11/2000 | US6014491 Method and system for manipulation of audio or video signals |
| 01/11/2000 | CA2174015C Speech coding parameter smoothing method |
| 01/06/2000 | WO2000000963A1 Voice coder |
| 01/06/2000 | WO2000000962A1 Method for executing automatic evaluation of transmission quality of audio signals |
| 01/06/2000 | WO1999053677A3 Lossless encoding/decoding in a transmission system |
| 01/06/2000 | CA2266149A1 An analog radio system with acoustic transmission properties |
| 01/05/2000 | EP0969449A1 Information distributing apparatus, information transmitting apparatus, information receiving apparatus, and information distributing method |
| 01/05/2000 | EP0968497A1 Variable length audio coding using a plurality of subband bit allocation patterns |
| 01/05/2000 | EP0900482A4 Method and apparatus for minimal redundancy error detection and correction of voice spectrum parameters |
| 01/04/2000 | US6012026 Variable bitrate speech transmission system |
| 01/04/2000 | US6012024 Method and apparatus in coding digital information |
| 01/04/2000 | US6012023 Pitch detection method and apparatus uses voiced/unvoiced decision in a frame other than the current frame of a speech signal |
| 01/04/2000 | US6011824 Signal-reproduction method and apparatus |
| 01/04/2000 | US6011496 Digital data coding/decoding method and apparatus |
| 12/29/1999 | WO1999067774A1 A noise suppressor having weighted gain smoothing |
| 12/29/1999 | EP0967594A1 Sound encoder and sound decoder |
| 12/29/1999 | EP0967593A1 Audio coding and quantization method |
| 12/29/1999 | EP0966828A1 Mobile telephone having continuous recording capability |
| 12/29/1999 | EP0966793A1 Audio coding method and apparatus |
| 12/29/1999 | EP0834221A4 Apparatus and method for lossless waveform data compression |
| 12/29/1999 | CN1239796A Vocoder with efficient, fault tolerant excitation vector encoding |
| 12/28/1999 | USRE36478 Processing of acoustic waveforms |
| 12/28/1999 | US6009395 Synthesizer and method using scaled excitation signal |
| 12/28/1999 | US6009388 High quality speech code and coding method |
| 12/28/1999 | US6009387 System and method of compression/decompressing a speech signal by using split vector quantization and scalar quantization |
| 12/28/1999 | US6009386 Speech playback speed change using wavelet coding, preferably sub-band coding |
| 12/28/1999 | US6009385 Speech processing |