Patents
Sitemap › G10 - Musical instruments; Acoustics › G10L - Speech analysis or synthesis; Speech recognition; Speech or voice processing; Speech or audio coding or decoding › 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
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)
11/2003
11/19/2003EP1363273A1 A speech communication system and method for handling lost frames
11/19/2003EP1363272A1 Telecommunication terminal with means for altering the transmitted voice during a telephone communication
11/19/2003EP1362346A1 Speech bandwidth extension
11/19/2003EP1362345A2 Method and apparatus for reducing undesired packet generation
11/19/2003EP1362344A1 Multichannel signal spectral reconstruction method and device
11/19/2003EP1362341A1 Method and apparatus for encoding and decoding pause information
11/19/2003EP1247389B1 Method and platform for evaluating speech quality in telephone communications
11/19/2003EP0981816B9 Audio coding systems and methods
11/19/2003CN1457552A Data processing apparatus
11/19/2003CN1457485A Speech coding system with self adapting coding arrangement
11/19/2003CN1457484A Audio data interpolation apparatus and method, audio data-related information creation apparatus and method, audio data interpolation information transmission apparatus and method, program and
11/19/2003CN1457483A Content supply system and information processing method
11/19/2003CN1457482A Signal reproducing apparatus and method, signal recording apparatus and method, signal receiver and information processing method
11/19/2003CN1457425A Codebook structure and search for speech coding
11/19/2003CN1128436C Signal processing techniques for time-scale and/or pitch modification of audio signals
11/18/2003US6651041 Method for executing automatic evaluation of transmission quality of audio signals using source/received-signal spectral covariance
11/18/2003US6650784 Lossless intraframe encoding using Golomb-Rice
11/18/2003US6650255 Efficient coding of side information in a lossless encoder
11/13/2003WO2003094555A2 Tfo communication apparatus with codec mismatch resolution and/or optimization logic
11/13/2003WO2003094504A1 Method of processing image and audio information, image and audio processing apparatus and computer program that causes a computer to process image and audio information
11/13/2003WO2003094369A2 Multi-channel downmixing device
11/13/2003WO2003094358A1 Device and method for masking a fault
11/13/2003WO2003069954A3 Parametric audio coding
11/13/2003WO2002059772A8 Blind decomposition using fourier and wavelet transforms
11/13/2003US20030212564 Information recording apparatus and method, information reproducing apparatus and method, information recording program and information reproducing program, recording medium and information recording medium
11/13/2003US20030212551 Scalable compression of audio and other signals
11/13/2003US20030212550 Method, apparatus, and system for improving speech quality of voice-over-packets (VOP) systems
11/13/2003US20030212548 Apparatus and method for improved voice activity detection
11/13/2003US20030211830 Portable terminal device
11/13/2003US20030210804 Secure document design with machine readable, variable message encoded in a visible registration pattern
11/13/2003US20030210659 TFO communication apparatus with codec mismatch resolution and/or optimization logic
11/13/2003US20030210485 Apparatus and method for recording digital broadcast on exchangeable storage medium, and exchangeable storage medium therefor
11/12/2003EP1361714A1 Method and/or system for transferring/receiving audio and/or video signals fulfilling the requirement to bridge synchronous and asynchronous networks and minimizing delay time over such networks and relating apparatuses
11/12/2003EP1361567A2 Vector quantization for a speech transform coder
11/12/2003EP1222531B1 Multiple instance implementation of speech codecs
11/12/2003CN1455918A Data processing apparatus
11/12/2003CN1455917A 多信道信号编码和解码 Multichannel signal coding and decoding
11/12/2003CN1455572A Improved sound-echo elimination
11/12/2003CN1455408A Method and apparatus for controlling audio-frequency flow buffering
11/12/2003CN1455390A Apparatus and method for estimating harmonic wave of sound coder
11/11/2003US6647366 Rate control strategies for speech and music coding
11/11/2003US6647365 Method and apparatus for detecting noise-like signal components
11/11/2003US6647130 Printable interfaces and digital linking with embedded codes
11/11/2003US6647129 Method and system for encoding image and audio content
11/11/2003US6647128 Method for monitoring internet dissemination of image, video, and/or audio files
11/11/2003US6647063 Information encoding method and apparatus, information decoding method and apparatus and recording medium
11/11/2003US6647023 Voice coding conversion circuit between office exchange and ISDN keyphone system
11/06/2003WO2003092260A2 Method and apparatus for preserving matrix surround information in encoded audio/video
11/06/2003WO2003092167A1 Data processing system, data processing method, data processing device, and data processing program
11/06/2003WO2003091989A1 Coding device, decoding device, coding method, and decoding method
11/06/2003WO2003091899A2 Apparatus and method for identifying audio
11/06/2003WO2003061143A3 Coding a masked data channel in a radio signal
11/06/2003US20030208359 Method and apparatus for controlling buffering of audio stream
11/06/2003US20030206558 Method for scalable encoding of media streams, a scalable encoder and a terminal
11/06/2003US20030206530 Communication system with fast control traffic
11/05/2003EP1359567A1 Gradient descent optimization of linear prediction coefficients for speech coders
11/05/2003EP0925580B1 Transmitter with an improved speech encoder and decoder
11/05/2003CN1454445A Portable audio devices
11/05/2003CN1453712A Information reproducer with content representational function
11/05/2003CN1127218C Long-short block switching method based on perception entropy in small wave audio frequency encode
11/05/2003CN1127055C Perceptual weighting device and method for efficient coding of wideband sound signals and cellular communication system
11/05/2003CN1127054C Signal processing method for perception audio encoding
11/04/2003US6643744 Method and apparatus for pre-fetching audio data
11/04/2003US6643618 Speech decoding unit and speech decoding method
11/04/2003US6643617 Method to generate telephone comfort noise during silence in a packetized voice communication system
11/04/2003US6643384 Watermark data hiding apparatus, a method of hiding watermark data, a method of transmitting data including watermark data, a recording medium storing data including watermark data, a data and watermark data reading apparatus, and a method of reading data and watermark data
11/04/2003US6643196 Redundant memory circuit for analog semiconductor memory
11/04/2003CA2295281C Multiple program decoding for digital audio broadcasting and other applications
11/04/2003CA2126099C Embedded signalling
10/2003
10/30/2003WO2003090395A2 Method and system for watermarking digital content and for introducing failure points into digital content
10/30/2003WO2003090209A1 Method and device for obtaining parameters for parametric speech coding of frames
10/30/2003WO2003090208A1 pARAMETRIC REPRESENTATION OF SPATIAL AUDIO
10/30/2003WO2003090207A1 Parametric multi-channel audio representation
10/30/2003WO2003090206A1 Signal synthesizing
10/30/2003WO2003090204A1 Method and apparatus for pitch period estimation
10/30/2003WO2003089892A1 Generating lsf vectors
10/30/2003WO2003053014A8 Sending audio signals with high fidelity between wireless stations
10/30/2003US20030204543 Device and method for estimating harmonics in voice encoder
10/30/2003US20030204402 Gradient descent optimization of linear prediction coefficient for speech coders
10/30/2003US20030204401 Low bandwidth speech communication
10/30/2003US20030204395 Information reproducing apparatus with a content reproducing function
10/30/2003US20030202654 Acoustic echo cancellation
10/30/2003US20030202600 Frequency thinning apparatus for thinning out frequency components of signal and frequency thinning apparatus
10/29/2003EP1357466A2 Information reproducing apparatus with a content reproducing function
10/29/2003EP1356459A2 Method and apparatus for interoperability between voice transmission systems during speech inactivity
10/29/2003EP1356458A1 Parametric encoder and method for encoding an audio or speech signal
10/29/2003EP1356457A1 Parametric coding of an audio or speech signal
10/29/2003EP1356456A1 Linking of signal components in parametric encoding
10/29/2003EP1356455A1 Method and device for processing numerous audio binary streams
10/29/2003EP1356375A2 System and method for voice access to internet-based information
10/29/2003EP1224662B1 Variable bit-rate celp coding of speech with phonetic classification
10/29/2003CN1452379A System, server, method and computer program for providing sound data
10/29/2003CN1452364A Communication device and method, and navigation device for vehicle mounting
10/29/2003CN1452158A Method for acquisition of basic speech period and encoding
10/29/2003CN1452155A Audio signal regenerating method and device
10/29/2003CN1126274C Apparatus and method for localizing transmission errors to provide robust error recovery in lossy transmission environment
10/29/2003CN1126265C Scalable stereo audio encoding/decoding method and apparatus
10/29/2003CN1126263C Device and method for data compression and expansion of audio signals
10/29/2003CN1126076C Sound decoder and sound decoding method
10/28/2003US6640209 Closed-loop multimode mixed-domain linear prediction (MDLP) speech coder
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