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)
03/2003
03/27/2003US20030061055 Audio coding
03/27/2003US20030061050 Signal injection coupling into the human vocal tract for robust audible and inaudible voice recognition
03/27/2003US20030061048 Text-to-speech native coding in a communication system
03/27/2003US20030061047 Voice converter with extraction and modification of attribute data
03/27/2003US20030061044 Method of calculating HMM output probability and speech recognition apparatus
03/27/2003US20030061041 Phoneme-delta based speech compression
03/27/2003US20030061035 Method and apparatus for blind separation of an overcomplete set mixed signals
03/27/2003US20030060911 Low power digital audio decoding/playing system for computing devices
03/27/2003US20030058748 Interface apparatus that can reproduce audio data by itself
03/26/2003EP1295283A1 Audio coding
03/26/2003EP1114414B1 An adaptive criterion for speech coding
03/26/2003EP0947052B1 Error correction decoder for vocoding system
03/26/2003EP0728350B1 Method and apparatus for selecting an encoding rate in a variable rate vocoder
03/26/2003CN1104093C Speech transmission system
03/26/2003CN1103973C Transmission system and method, and the corresponding transmitter, receiver, coder and decoder
03/25/2003US6539367 Methods and apparatus for decoding of general codes on probability dependency graphs
03/25/2003US6539357 Technique for parametric coding of a signal containing information
03/25/2003US6539356 Signal encoding and decoding method with electronic watermarking
03/25/2003US6539349 Constraining pulse positions in CELP vocoding
03/25/2003US6539095 Audio watermarking to convey auxiliary control information, and media embodying same
03/25/2003CA2272600C System and method for scheduling and processing image and sound data
03/20/2003WO2003024016A1 Message reconstruction from partial detection
03/20/2003WO2003023785A2 Method and apparatus for elapsed playback timekeeping of variable bit-rate digitally encoded audio data files
03/20/2003WO2003023781A1 Extension of m3u file format to support user interface and navigation tasks in a digital audio player
03/20/2003WO2003023764A1 Controlling a weighting filter based on the spectral content of a speech signal
03/20/2003WO2003023763A1 Improved frame erasure concealment for predictive speech coding based on extrapolation of speech waveform
03/20/2003WO2002017588A8 Low speed speech encoding method based on the network protocol
03/20/2003WO2000031719A3 Speech coding with comfort noise variability feature for increased fidelity
03/20/2003US20030056221 Digital implementation of multi-channel demodulators
03/20/2003US20030056101 Using multipe watermarks to protect content material
03/20/2003US20030055657 Decoder
03/20/2003US20030055656 Sound encoder and sound decoder
03/20/2003US20030055647 Voice converter with extraction and modification of attribute data
03/20/2003US20030055646 Voice converter with extraction and modification of attribute data
03/20/2003US20030055633 Method and device for coding speech in analysis-by-synthesis speech coders
03/20/2003US20030055632 Method and system for an overlap-add technique for predictive speech coding based on extrapolation of speech waveform
03/20/2003US20030055631 Method and system for a waveform attenuation technique for predictive speech coding based on extrapolation of speech waveform
03/20/2003US20030055630 Method and apparatus for a tunable high-resolution spectral estimator
03/20/2003US20030055629 Apparatus and method for converting LSP parameter for voice packet conversion
03/20/2003US20030055517 Digital acoustic reproducing apparatus, acoustic apparatus and acoustic reproducing system
03/20/2003US20030055516 Using a system for prediction of musical preferences for the distribution of musical content over cellular networks
03/20/2003US20030055515 Header for signal file temporal synchronization
03/20/2003US20030053654 Hiding geo-location data through arrangement of objects
03/20/2003US20030053653 Watermark embedder and reader
03/20/2003US20030053618 Synchronization of echo cancellers in a voice processing system
03/20/2003US20030053548 Wireless infrared digital audio system
03/20/2003US20030052450 Device and method for continuously shuffling and monitoring cards
03/20/2003EP1145222A3 Speech coding with comfort noise variability feature for increased fidelity
03/19/2003EP1293968A2 Efficient excitation quantization in a noise feeback coding system using correlation techniques
03/19/2003EP1293967A2 Robust quantization with efficient WMSE search of a sign-shape codebrook using illegal space
03/19/2003EP1293966A2 Robust composite quantization with sub-quantizers and inverse sub-quantizers using illegal space
03/19/2003EP1293965A2 Robust quantization and inverse quantization using illegal space
03/19/2003EP1293961A1 A signal processing method to analyse transients of a speech signal
03/19/2003EP1292943A1 Audible error detector and controller utilizing channel quality data and iterative synthesis
03/19/2003EP1292942A1 Method and apparatus for mitigating the effect of transmission errors in a distributed speech recognition process and system
03/19/2003EP1131769A4 Printing and validation of self validating security documents
03/19/2003CN1404608A Reproducing device, reproducing method and audio data storage medium
03/19/2003CN1404032A Universal voice prompt remote controller and its setting process
03/18/2003US6535847 Audio signal processing
03/18/2003US6535618 Image capture device with steganographic data embedding
03/18/2003US6535583 Voice recompression method and apparatus
03/18/2003CA2239672C Speech coder for high quality at low bit rates
03/13/2003WO2003021573A1 Codec
03/13/2003WO2002087137A3 Methods for changing the size of a jitter buffer and for time alignment, communications system, receiving end, and transcoder
03/13/2003WO2002015587A3 Modulating one or more parameters of an audio or video perceptual coding system in response to supplemental information
03/13/2003US20030050961 Paper-based control of computer systems
03/13/2003US20030050775 TDVC-to-MELP transcoder
03/13/2003US20030050720 Message reconstruction from partial detection
03/12/2003EP1291851A2 Method and System for a waveform attenuation technique of error corrupted speech frames
03/12/2003EP1291850A1 Decoder
03/12/2003EP1290849A1 Software encoder for encoding digital audio streams
03/12/2003EP1290690A1 Coded information on cd audio
03/12/2003EP1290681A1 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
03/12/2003EP1290680A1 Transmitter for transmitting a signal encoded in a narrow band, and receiver for extending the band of the signal at the receiving end
03/12/2003EP1290679A1 Method and arrangement for changing source signal bandwidth in a telecommunication connection with multiple bandwidth capability
03/12/2003EP1290610A1 Recording medium, license management apparatus, and recording and playback apparatus
03/12/2003EP1212857B1 Method and device for introducing information into a data stream and a method for encoding an audio signal
03/12/2003CN1402957A Method and apparatus for deriving at least one audio signal from two or more input audio signals
03/12/2003CN1402947A Mobile phone with interactive printer
03/12/2003CN1402933A Method and system for telephone control
03/12/2003CN1402929A Telephone capable of playing music
03/12/2003CN1402870A Differentiation of error conditions in digital voice communication systems
03/12/2003CN1402869A Predictive speech coder using coding scheme selection patterns to reduce sensitivity to frame errors
03/12/2003CN1402865A Method and system for device control
03/12/2003CN1402861A Coded surface with function flags
03/12/2003CN1402859A Audio player with code sensor
03/12/2003CN1402855A Sensing device for coded electronic ink surface
03/12/2003CN1402854A Video player with code sensor
03/12/2003CN1103157C Communication package, and apparatus and method for storing and retrieving permanent message
03/12/2003CN1103093C Processing of speech coder parameters
03/11/2003US6532564 Encoder for multiplexing blocks of error protected bits with blocks of unprotected bits
03/11/2003US6532443 Reduced length infinite impulse response weighting
03/11/2003US6532365 PCS pocket phone/microcell communication over-air protocol
03/06/2003WO2003019775A2 Audio processing device
03/06/2003WO2003019561A1 Information processing apparatus and method
03/06/2003WO2003019535A1 Data structure, generating method, reproducing method, recording method, recording medium and distributing method of voice data, and reproducing method of multimedia
03/06/2003WO2003019533A1 Device and method for interpolating frequency components of signal adaptively
03/06/2003WO2003019532A1 Audio coding with non-uniform filter bank
03/06/2003WO2003019531A1 Method for multiresolution spectral analysis
03/06/2003WO2003019530A1 Pitch waveform signal generation apparatus, pitch waveform signal generation method, and program
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