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)
11/2002
11/06/2002	EP1255244A1 Memory addressing in the decoding of an audio signal
11/06/2002	EP1254529A2 A method of labelling a multi-frequency signal such as an audio or a video signal
11/06/2002	EP1119846B1 Method for encoding or decoding voice signal scanning values and encoder or decoder
11/06/2002	EP1101296A4 Communication system with fast control traffic
11/06/2002	EP1051701B1 Method for voice data transmission
11/06/2002	CN1378402A Equalizing treating method and device and mobile station
11/06/2002	CN1378200A Quick fourier transform method and its transforming device
11/05/2002	US6477502 Method and apparatus for using non-symmetric speech coders to produce non-symmetric links in a wireless communication system
11/05/2002	US6477501 Real-time lossless encoding and decoding system by moving excess data amounts, and a method therefor
11/05/2002	US6477496 Signal synthesis by decoding subband scale factors from one audio signal and subband samples from different one
11/05/2002	US6477492 System for automated testing of perceptual distortion of prompts from voice response systems
11/05/2002	US6477490 Audio signal compression method, audio signal compression apparatus, speech signal compression method, speech signal compression apparatus, speech recognition method, and speech recognition apparatus
11/05/2002	US6476752 Signal processing system employing two bit ternary signal
11/05/2002	US6475245 Method and apparatus for hybrid coding of speech at 4KBPS having phase alignment between mode-switched frames
10/2002
10/31/2002	WO2002087241A1 Audio coding with partial encryption
10/31/2002	WO2002087137A2 Methods for changing the size of a jitter buffer and for time alignment, communications system, receiving end, and transcoder
10/31/2002	WO2002086896A1 Method and apparatus for editing data streams
10/31/2002	WO2002086866A1 Compression method and apparatus, decompression method and apparatus, compression/decompression system, peak detection method, program, and recording medium
10/31/2002	WO2002060075A3 Enhanced conversion of wideband signals to narrowband signals
10/31/2002	WO2002035747A3 Rendering device and arrangement
10/31/2002	US20020161762 Information processor, processing method therefor, and program storage medium
10/31/2002	US20020161647 Tracking purchases in a location-based services system
10/31/2002	US20020161646 Advertising campaign and business listing management for a location-based services system
10/31/2002	US20020161627 Method for passive mining of usage information in a location-based services system
10/31/2002	US20020161587 Natural language processing for a location-based services system
10/31/2002	US20020161583 Joint optimization of excitation and model parameters in parametric speech coders
10/31/2002	US20020161576 Speech coding system with a music classifier
10/31/2002	US20020161575 Speech coder and speech decoder
10/31/2002	US20020161573 Speech coding/decoding appatus and method
10/31/2002	US20020160772 Routing call failures in a location-based services system
10/31/2002	US20020160766 Location-based services
10/31/2002	US20020159615 Inferring object status based on detected watermark data
10/31/2002	US20020159472 Systems and methods for encoding & decoding speech for lossy transmission networks
10/31/2002	DE10129239C1 Audio signal water-marking method processes water-mark signal before embedding in audio signal so that it is not audibly perceived
10/30/2002	EP1253525A2 Recognizer of audio-content in digital signals
10/30/2002	EP1252605A1 Data compression method and apparatus
10/30/2002	EP0843874B1 A method for coding human speech and an apparatus for reproducing human speech so coded
10/30/2002	EP0691052B1 Method and apparatus for encoding multibit coded digital sound through subtracting adaptive dither, inserting buried channel bits and filtering, and encoding apparatus for use with this method
10/30/2002	CN1377500A Audio coding
10/30/2002	CN1377499A Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
10/30/2002	CN1377497A Memory card
10/30/2002	CN1377155A Apparatus containing receiving equipment and method for restoring lost information
10/29/2002	US6473736 Constant bitrate real-time lossless audio decoder restoring moved excess coded data amounts
10/29/2002	US6473731 Audio CODEC with programmable psycho-acoustic parameters
10/24/2002	WO2002084646A1 Audio coding
10/24/2002	US20020157012 Recording/reproducing metod and recorder/reproducer for record medium containing copyright management data
10/24/2002	US20020156637 Audio signal saving operation controlling method, program thereof, record medium thereof, audio signal reproducing operation controlling method, program thereof, record medium thereof, audio signal inputting operation controlling method, program thereof, and record medium thereof
10/24/2002	US20020156625 Speech coding system with input signal transformation
10/24/2002	US20020156621 Parametric coding of an audio or speech signal
10/24/2002	US20020156619 Audio coding
10/24/2002	US20020154900 Information reproducing apparatus, information reproducing method, information recording medium, information recording apparatus, information recording method, and information recording program
10/24/2002	US20020154774 Audio coding
10/23/2002	EP1251494A2 Equalizer apparatus and equalizing method
10/23/2002	EP1008141B1 Reducing sparseness in coded speech signals
10/23/2002	CN1375818A Audio-frequency coding apapratus, method, decoding apparatus and audio-frequency decoding method
10/23/2002	CN1375817A Audio signal comprssing coding/decoding method based on wavelet conversion
10/23/2002	CN1093340C Speech transmission/reception system in which error data is replaced by speech synthesized data
10/22/2002	US6470313 Speech coding
10/22/2002	US6470312 Speech coding apparatus, speech processing apparatus, and speech processing method
10/22/2002	US6470310 Method and system for speech encoding involving analyzing search range for current period according to length of preceding pitch period
10/22/2002	CA2232446C Coding and decoding system for speech and musical sound
10/22/2002	CA2216315C Predictive split-matrix quantization of spectral parameters for efficient coding of speech
10/22/2002	CA2017935C Digital transmission system, transmitter and receiver for use in the transmission system, and record carrier obtained by means of the transmitter in the form of a recording device
10/17/2002	WO2002082428A1 Time-scale modification of signals applying techniques specific to determined signal types
10/17/2002	WO2002082426A1 Adpcm speech coding system with phase-smearing and phase-desmearing filters
10/17/2002	WO2002082425A1 Adpcm speech coding system with specific step-size adaptation
10/17/2002	WO2002082424A1 Method and device for extracting acoustic parameters of a voice signal
10/17/2002	WO2002023195A3 Method for detecting clostridium botulinum neurotoxin serotypes a, b, e and f in a sample
10/17/2002	US20020152085 Encoding apparatus and decoding apparatus
10/17/2002	US20020152083 Systems and methods for transmitting bursty-asnychronous data over a synchronous link
10/17/2002	US20020152072 Parametric encoder and method for encoding an audio or speech signal
10/17/2002	US20020152065 Distributed speech recognition
10/17/2002	US20020150183 Apparatus comprising a receiving device for receiving data organized in frames and method of reconstructing lacking information
10/17/2002	US20020150165 Rendering device and arrangement
10/17/2002	DE10124421C1 Codec parameter estimation method uses iteration process employing earlier and later codec parameter values
10/16/2002	EP1249837A2 A method for decompressing a compressed audio signal
10/16/2002	EP1249830A1 A method for decompressing a compressed audio signal
10/16/2002	EP1249127A2 A method of scrambling a signal
10/16/2002	EP1249002A1 Authenticating metadata and embedding metadata in watermarks of media signals
10/16/2002	EP0910900B1 A method of coding and decoding audio signals
10/16/2002	CN1375178A Subband acoustie feedback cancerllation in hearing aids
10/16/2002	CN1375146A Method and apparatus supporting TDD/TTY modulation over vocoded channels
10/16/2002	CN1375096A Spectral magnetude quantization for a speech coder
10/16/2002	CN1375095A Method and apparatus for subsampling phase spectrum information
10/15/2002	US6466912 Perceptual coding of audio signals employing envelope uncertainty
10/15/2002	US6466905 Differentiation of error conditions in digital voice communication systems
10/15/2002	US6466904 Method and apparatus using harmonic modeling in an improved speech decoder
10/15/2002	CA2237814C Training process
10/10/2002	WO2002080372A2 Reduced data stream for transmitting a signal
10/10/2002	WO2002080148A1 Noise suppressor
10/10/2002	WO2002080147A1 Compressed domain universal transcoder
10/10/2002	WO2002080146A1 Audio compression
10/10/2002	WO2002080145A1 Method and device to distinguish between voice conversation and automated speech recognition
10/10/2002	US20020147595 Cochlear filter bank structure for determining masked thresholds for use in perceptual audio coding
10/10/2002	US20020147594 Method and apparatus for packing and decoding audio and other data
10/10/2002	US20020147593 Categorized speech-based interfaces
10/10/2002	US20020147590 Error concealment in digital audio receiver
10/10/2002	US20020147585 Voice activity detection
10/10/2002	US20020147584 Lossless audio coder
10/10/2002	US20020147583 System for coding speech information using an adaptive codebook with enhanced variable resolution scheme

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