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)
06/2003
06/10/2003US6577559 Electronic converter for converting an acoustic signal into a pseudo-digital signal, timepiece including such a converter and two-directional communication method via acoustic waves
06/10/2003US6577252 Audio signal encoding apparatus
06/05/2003WO2003047138A1 Method for stealing speech data frames for signalling purposes
06/05/2003WO2003047115A1 Method for replacing corrupted audio data
06/05/2003WO2003046891A1 Methods for improving high frequency reconstruction
06/05/2003WO2003046889A1 Signal coding
06/05/2003WO2003046886A1 Method for classifying a temporal series of events by means of a network containing pulsed neurones
06/05/2003US20030105640 Digital audio with parameters for real-time time scaling
06/05/2003US20030105639 Method and apparatus for audio navigation of an information appliance
06/05/2003US20030105637 Systems and methods for TV navigation with compressed voice-activated commands
06/05/2003US20030105628 LPC-to-TDVC transcoder
06/05/2003US20030105627 Method and apparatus for converting linear predictive coding coefficient to reflection coefficient
06/05/2003US20030105626 Method for improving speech quality in speech transmission tasks
06/05/2003US20030105624 Speech coding apparatus
06/05/2003US20030104785 Mobile telephone unit using singing voice synthesis and mobile telephone system
06/05/2003US20030103667 Neural network model for compressing/decompressing image/acoustic data files
06/05/2003US20030103645 Integrating digital watermarks in multimedia content
06/05/2003US20030103630 Device for receiving digital radio signals
06/05/2003US20030103611 Method and system for telephone control using sensor with identifier
06/05/2003US20030103422 Information playback apparatus
06/05/2003US20030101861 Recording/reproduction system of music data, and music data storage medium
06/04/2003EP1316088A2 Sub-band exponential smoothing noise canceling system
06/04/2003EP1316087A1 Transmission error concealment in an audio signal
06/04/2003CN1422466A System and method for adding an inaudible code to an audio signal and method and apparatus for reading a code signal from an audio signal
06/04/2003CN1422100A Ultrahigh speed data coding and decoding method and its mapping method
06/04/2003CN1110982C Method and apparatus for receiving and transmitting multiply telephone signals
06/04/2003CN1110919C Method for unloading data to add function to vecoder
06/04/2003CN1110811C Audio encoding/decoding equipments
06/04/2003CN1110791C Method and apparatus for digital information coding
06/03/2003US6574598 Transmitter and receiver, apparatus and method, all for delivery of information
06/03/2003US6574593 Codebook tables for encoding and decoding
06/03/2003US6574469 System and method of minimizing the number of voice transcodings during a conference call in a packet-switched network
06/03/2003US6574350 Digital watermarking employing both frail and robust watermarks
06/03/2003US6574207 Method for subscriber unit compressing and transmitting high speed data
05/2003
05/30/2003WO2003045066A2 Producing acoustic signals from a video data flow
05/30/2003WO2003044778A1 Feedforward prediction of scalefactors based on allowable distortion for noise shaping in psychoacoustic-based compression
05/30/2003WO2003044777A1 Audio signal bandwidth extension
05/30/2003WO2003044776A1 Audio coding
05/30/2003WO2003044775A1 Perceptual noise substitution
05/30/2003WO2002041545A9 Wireless clock synchronization
05/29/2003US20030101100 Information service method, data terminal unit, data transmitting and receiving apparatus, and data trasmitting apparatus
05/29/2003US20030101052 Voice recognition and activation system
05/29/2003US20030101051 Distributed speech recognition with codec parameters
05/29/2003US20030101050 Real-time speech and music classifier
05/29/2003US20030101049 Method for stealing speech data frames for signalling purposes
05/28/2003EP1315150A2 Adaptive postfiltering methods and systems for decoding speech
05/28/2003EP1315149A2 Method and apparatus to eliminate discontinuities in adaptively filtered signals
05/28/2003EP1315148A1 Determination of the presence of ancillary data in an audio bitstream
05/28/2003EP1314246A1 Partioned block frequency domain adaptive filter
05/28/2003EP1314159A1 Method of storing or decoding a stream of bits
05/28/2003EP1238390A4 Differentiation of error conditions in digital voice communication systems
05/28/2003EP1228507B1 A method of reducing memory requirements in an ac-3 audio encoder
05/28/2003EP0954849B1 A method and apparatus for audio representation of speech that has been encoded according to the lpc principle, through adding noise to constituent signals therein
05/28/2003CN1420707A High-speed data coding and decoding device, and data sending system
05/28/2003CN1420706A Ultra-high speed data coding and decoding device, and data sending system
05/28/2003CN1420487A Method for quantizing one-step interpolation predicted vector of 1kb/s line spectral frequency parameter
05/28/2003CN1110145C Variable scale audio coding/decoding method and apparatus
05/27/2003US6571207 Device for processing phase information of acoustic signal and method thereof
05/27/2003US6571144 System for providing a digital watermark in an audio signal
05/27/2003US6571016 Intra compression of pixel blocks using predicted mean
05/27/2003US6570509 Method and system for encoding to mitigate decoding errors in a receiver
05/27/2003CA2314421C Subband encoding and decoding system for data compression and decompression
05/23/2003WO2003042981A1 Audio coding and decoding
05/22/2003WO2003043277A1 Error concealment apparatus and method
05/22/2003WO2003042988A1 System and method for controlling the use and duplication of digital content distributed on removable media
05/22/2003WO2003042982A1 Comfort noise including recorded noise
05/22/2003WO2003042980A1 Determination of the presence of additional coded data in a data frame
05/22/2003WO2003042979A2 Encoding device and decoding device
05/22/2003WO2003042978A1 Embedding supplementary data in an information signal
05/22/2003WO2003042977A1 Code conversion method, apparatus, program, and storage medium
05/22/2003WO2003042976A1 Method and system for processing audio signals
05/22/2003WO2003042648A1 Speech encoder, speech decoder, speech encoding method, and speech decoding method
05/22/2003WO2002103695A3 Device and method for embedding a watermark in an audio signal
05/22/2003WO2002088880A3 Location-based services
05/22/2003US20030097267 Complete optimization of model parameters in parametric speech coders
05/22/2003US20030097260 Speech model and analysis, synthesis, and quantization methods
05/22/2003US20030097258 Low complexity random codebook structure
05/22/2003US20030097254 Ultra-narrow bandwidth voice coding
05/22/2003US20030094756 Device and method for continuously shuffling and monitoring cards
05/22/2003DE10134471C2 Verfahren und Vorrichtung zum Charakterisieren eines Signals und Verfahren und Vorrichtung zum Erzeugen eines indexierten Signals Method and apparatus for characterizing a signal and method and device for producing an indexed signal
05/21/2003EP1313091A2 Speech analysis, synthesis, and quantization methods
05/21/2003EP1312230A2 Method and apparatus for using non-symmetric speech coders to produce non-symmetric links in a wireless communication system
05/21/2003EP1312169A2 Low latency data encoder
05/21/2003EP1312076A2 Transcoder for sampling frequency conversion and synchronization of audio signals
05/21/2003EP1312075A1 Method for noise robust classification in speech coding
05/21/2003CN1419687A Complex signal activity detection for improved speech-noise classification of an audio signal
05/21/2003CN1419349A Phonetic coder, phonetic decoder and phonetic coding/decoding method
05/21/2003CN1109472C Method and transdocer for performing distributed handover in uplink direction
05/21/2003CN1109459C Transcoder with prevention of tandem coding of speech
05/21/2003CN1109408C Method and apparatus for speech transmission in mobile communication system
05/21/2003CN1109407C Audio frequency coding or decoding device and audio frequency transmission method
05/20/2003US6567949 Method and configuration for error masking
05/20/2003US6567782 Portable information terminal, method of processing audio data, recording medium, and program
05/20/2003US6567781 Method and apparatus for compressing audio data using a dynamical system having a multi-state dynamical rule set and associated transform basis function
05/20/2003US6567780 Audio with hidden in-band digital data
05/20/2003US6567535 Steganographic system with changing operations
05/20/2003US6567534 Methods and systems for watermark processing of line art images
05/20/2003US6567533 Method and apparatus for discerning image distortion by reference to encoded marker signals
05/20/2003US6567506 Telephone number recognition of spoken telephone number in a voice message stored in a voice messaging system
05/20/2003US6567349 Recording medium, editing method and editing apparatus
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