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)
08/2003
08/27/2003CN1119797C Dictation system
08/27/2003CN1119796C Rate changeable sonic code device
08/27/2003CN1119794C Distributed voice recognition system
08/26/2003US6611800 Vector quantization method and speech encoding method and apparatus
08/26/2003US6611799 Determining linear predictive coding filter parameters for encoding a voice signal
08/26/2003US6611798 Perceptually improved encoding of acoustic signals
08/26/2003US6611797 Speech coding/decoding method and apparatus
08/26/2003US6611694 Arrangement for improving the speech quality, especially for VoIP (Voice over IP) calls
08/26/2003US6611607 Integrating digital watermarks in multimedia content
08/26/2003US6611212 Matrix improvements to lossless encoding and decoding
08/21/2003WO2003069954A2 Parametric audio coding
08/21/2003WO2003069873A2 Audio enhancement communication techniques
08/21/2003US20030158740 Inverse-modified discrete cosine transform and overlap-add method and hardware structure for MPEG layer3 audio signal decoding
08/21/2003US20030158730 Method and apparatus for embedding data in and extracting data from voice code
08/20/2003EP1336310A2 Methods and apparatus for identifying asset location in mobile communication networks
08/20/2003EP1336299A1 Method and device for communicating a command
08/20/2003EP1336277A2 Methods and apparatus for identifying asset location in mobile communication networks
08/20/2003EP1336175A1 Wideband extension of telephone speech for higher perceptual quality
08/20/2003CN1437747A Closed-loop multimode mixed-domain linear prediction (MDLP) speech coder
08/20/2003CN1437746A Method and apparatus for tracking the phase of a quasi-periodic signal
08/20/2003CN1437745A Method and apparatus for mitigating the effect of transmission errors in a distributed speech recognition process and system
08/20/2003CN1437184A Decoding apparatus and coding apparatus, decoding method and coding method
08/20/2003CN1437169A Method of, apparatus and system for performing data insertion/extraction for phonetic code
08/20/2003CN1119064C Method for transmitting background noise information in data transmission in data frame, communication system, mobile station and network unit
08/19/2003US6609092 Method and apparatus for estimating subjective audio signal quality from objective distortion measures
08/19/2003US6608924 Neural network model for compressing/decompressing image/acoustic data files
08/19/2003US6608877 Reduced complexity signal transmission system
08/19/2003US6608822 Direct path matrix conference communication system and method
08/19/2003CA2083713C High efficiency digital data encoding and decoding apparatus
08/14/2003WO2003067792A1 Digital circuit transmission device
08/14/2003WO2003067574A1 Method and apparatus of packet loss concealment for cvsd coders
08/14/2003WO2003067408A1 Method for transmitting data in a personal computer based on wireless human-machine interactive device
08/14/2003WO2003017555A3 Improved bit error concealment methods for speech coding
08/14/2003US20030154379 Watermark data embedding apparatus and extracting apparatus
08/14/2003US20030154082 Information retrieving method and apparatus
08/14/2003US20030154081 Objective measure for estimating mean opinion score of synthesized speech
08/14/2003US20030154080 Method and apparatus for modification of audio input to a data processing system
08/14/2003US20030154074 Decoding apparatus, encoding apparatus, decoding method and encoding method
08/14/2003US20030154073 Method, apparatus and system for embedding data in and extracting data from encoded voice code
08/14/2003US20030153993 Data playing system, transmitting and receiving apparatus, and bus conversion unit
08/14/2003US20030153295 Apparatus for providing high quality audio output by median filter in audio systems
08/14/2003US20030152165 Data processing apparatus
08/14/2003US20030152152 Audio enhancement communication techniques
08/13/2003EP1335496A1 Encoder and decoder
08/13/2003EP1335366A1 Codebook structure and search for speech coding
08/13/2003EP1335353A2 Decoding apparatus, encoding apparatus, decoding method and encoding method
08/13/2003EP1334578A2 Wireless clock synchronization
08/13/2003EP1334486A2 System for vector quantization search for noise feedback based coding of speech
08/13/2003EP1334485A1 Speech codec and method for generating a vector codebook and encoding/decoding speech signals
08/13/2003EP1334484A1 Enhancing the performance of coding systems that use high frequency reconstruction methods
08/13/2003EP1214866B1 Subband acoustic feedback cancellation in hearing aids
08/13/2003EP1206840B1 Method and device for coding/decoding
08/13/2003EP1062816B1 Method and apparatus for processing audio information using time-aligned blocks of encoded audio in video/audio applications to facilitate audio switching
08/13/2003EP0910067B1 Audio signal coding and decoding methods and audio signal coder and decoder
08/13/2003EP0856185B1 Repetitive sound compression system
08/13/2003CN1436347A Encoding and decoding of digital signal
08/13/2003CN1436346A Decoder
08/13/2003CN1435817A Voice coding converting method and device
08/13/2003CN1435754A Writings-sound converting device and portable terminel unit therewith
08/13/2003CN1118209C Improvement of digital communication equipment
08/13/2003CN1118166C Speech transmission between terminals in different networks
08/13/2003CN1118048C Quickly-adapting differential pulse encode-modulation method for speech coding
08/12/2003US6606600 Scalable subband audio coding, decoding, and transcoding methods using vector quantization
08/12/2003US6606593 Methods for generating comfort noise during discontinuous transmission
08/12/2003US6606592 Variable dimension spectral magnitude quantization apparatus and method using predictive and mel-scale binary vector
08/12/2003US6606591 Speech coding employing hybrid linear prediction coding
08/12/2003US6606312 Analog radio system with acoustic transmission properties
08/12/2003US6605769 Musical instrument digital recording device with communications interface
08/07/2003WO2003065363A1 Recording medium, recording method and apparatus, reproduction method and apparatus, data transmission method, and data demodulation method
08/07/2003WO2003065353A1 Audio encoding and decoding device and methods thereof
08/07/2003WO2002059875A3 System and method for error concealment in digital audio transmission
08/07/2003WO2002021323A3 Hardware function generator support in a dsp
08/07/2003US20030149879 Reversible watermarking
08/07/2003US20030149559 Audio coding and transcoding using perceptual distortion templates
08/07/2003US20030149553 Characterizing, synthesizing, and/or canceling out acoustic signals from sound sources
08/06/2003EP1333424A2 Method, apparatus and system for embedding data in and extracting data from encoded voice code
08/06/2003EP1332624A1 Method, device and arrangement for inserting extra information
08/06/2003EP1332493A2 Improved spectral parameter substitution for the frame error concealment in a speech decoder
08/06/2003EP1125284B1 High frequency content recovering method and device for over-sampled synthesized wideband signal
08/06/2003EP1125276B1 A method and device for adaptive bandwidth pitch search in coding wideband signals
08/06/2003CN2565229Y Speech storage readout apparatus
08/06/2003CN1434644A Method for judging phonetic frame effectiveness and correctness
08/06/2003CN1117346C Method and device for coding discrete signals or for decoding coded discrete signals
08/05/2003US6604071 Speech enhancement with gain limitations based on speech activity
08/05/2003US6604070 System of encoding and decoding speech signals
08/05/2003US6603832 CELP coding with two-stage search over displaced segments of a one-dimensional codebook
08/05/2003US6603774 Signaling and handling method for proxy transcoding of encoded voice packets in packet telephony applications
07/2003
07/31/2003WO2003063160A1 Method and unit for substracting quantization noise from a pcm signal
07/31/2003WO2003063136A1 Conversion scheme for use between dtx and non-dtx speech coding systems
07/31/2003WO2003063135A1 Audio coding method and apparatus using harmonic extraction
07/31/2003US20030144836 Method and apparatus for compressing and transmitting ultra high speed data
07/31/2003US20030144835 Correlation domain formant enhancement
07/31/2003US20030144833 Apparatus and method for inserting data effects into a digital data stream
07/31/2003US20030142960 Reproduction apparatus and reproducing method
07/31/2003US20030142847 Method for monitoring internet dissemination of image, video, and/or audio files
07/31/2003US20030142746 Encoding device, decoding device and methods thereof
07/31/2003US20030142699 Voice code conversion method and apparatus
07/31/2003CA2490064A1 Audio coding method and apparatus using harmonic extraction
07/30/2003EP1330914A2 Method and system for rate adaptation in a packet voice system
07/30/2003EP1330818A1 Method and system for speech frame error concealment in speech decoding
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