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)
10/2003
10/07/2003US6631352 Decoding circuit and reproduction apparatus which mutes audio after header parameter changes
10/07/2003US6631347 Vector quantization and decoding apparatus for speech signals and method thereof
10/07/2003US6631139 Method and apparatus for interoperability between voice transmission systems during speech inactivity
10/02/2003WO2003081196A1 Hierarchical lossless encoding/decoding method, hierarchical lossless encoding method, hierarchical lossless decoding method, its apparatus, and program
10/02/2003WO2002073592A3 Method and device for characterising a signal and method and device for producing an indexed signal
10/02/2003US20030188005 Data stream-distribution system and method therefor
10/02/2003US20030187800 Billing system for services provided via instant communications
10/02/2003US20030187663 Broadband frequency translation for high frequency regeneration
10/02/2003US20030187662 System, method, and article of manufacture for a reconfigurable hardware-based audio decoder
10/02/2003US20030187654 Mobile audio player
10/02/2003US20030187650 Call completion via instant communications client
10/02/2003US20030187641 Media translator
10/02/2003US20030187635 Method for modeling speech harmonic magnitudes
10/02/2003US20030187634 System and method for embedded audio coding with implicit auditory masking
10/02/2003US20030185452 Intra compression of pixel blocks using predicted mean
10/02/2003US20030185360 Telephony services system with instant communications enhancements
10/02/2003US20030185359 Enhanced services call completion
10/02/2003US20030185232 Communications gateway with messaging communications interface
10/01/2003EP1349420A2 Playback apparatus, headphone, and playback method
10/01/2003EP1349147A2 Method for changing voice coding mode, communication system, communication network and communication terminal
10/01/2003EP1348214A2 Injection high frequency noise into pulse excitation for low bit rate celp
10/01/2003EP1230827B1 Method and device for processing a stereo audio signal
10/01/2003EP0927468B1 Method to store information on a chip card and device to carry out said method
10/01/2003CN1445746A Recorder, recording/reproducing music method, broadcast and instrumental ensemble system
10/01/2003CN1123253C Digital radio system, digital signal processor and operating method of the processor
10/01/2003CN1122969C Method and device for reducing background noise contrast in switching of change of speech code decode apparatus
10/01/2003CN1122968C Method and apparatus for mitigating audio degradation communication system
09/2003
09/30/2003US6629283 Quantization error correcting device and method, and audio information decoding device and method
09/30/2003US6629070 Voice activity detection using the degree of energy variation among multiple adjacent pairs of subframes
09/30/2003US6629068 Calculating a postfilter frequency response for filtering digitally processed speech
09/30/2003US6629000 MPEG portable sound reproducing system and a reproducing method thereof
09/30/2003US6628724 Process and system for information transfer
09/25/2003WO2003079710A1 Method and device for converting coded voice data
09/25/2003WO2003079330A1 Method for adaptive codebook pitch-lag computation in audio transcoders
09/25/2003WO2003036886A3 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
09/25/2003WO2002025953A3 Video and audio transcoder
09/25/2003US20030182134 Audio processing method and audio processing apparatus
09/25/2003US20030182127 Low speed speech encoding method based on internet protocol
09/25/2003US20030182114 Robust parameters for noisy speech recognition
09/25/2003US20030182108 Method and apparatus for reducing rate determination errors and their artifacts
09/25/2003US20030182107 Voice signal synthesizing method and device
09/25/2003US20030182105 Method and system for distinguishing speech from music in a digital audio signal in real time
09/25/2003US20030182003 Playback apparatus, headphone, and playback method
09/25/2003US20030179903 Methods and products employing biometrics and steganography
09/25/2003US20030179745 Voice transmitting and receiving system
09/25/2003US20030179672 Playback apparatus and power-saving method
09/24/2003EP1347660A2 PCS pocket phone/microcell communication over-air protocol
09/24/2003EP1347659A2 PCS pocket phone/microcell communication over-air protocol
09/24/2003EP1347658A2 PCS pocket phone/microcell communication over-air protocol
09/24/2003EP1347584A2 PCS pocket phone/microcell communication over-air protocol
09/24/2003EP1347583A2 PCS pocket phone/microcell communication over-air protocol
09/24/2003EP1346553A1 Audio signal quality enhancement in a digital network
09/24/2003CN1122396C Cellular telephone with voice dialing function
09/24/2003CN1122368C High efficient precision insuring antierror code signal compression method
09/24/2003CN1122256C Method and device for predicting and analysising coding audio signal by forward and backward linearity
09/23/2003US6625574 Method and apparatus for sub-band coding and decoding
09/23/2003US6625226 Variable bit rate coder, and associated method, for a communication station operable in a communication system
09/23/2003US6624768 Method and device for coding/decoding
09/18/2003WO2003077425A1 Digital signal encoding method, decoding method, encoding device, decoding device, digital signal encoding program, and decoding program
09/18/2003WO2003077235A1 Efficient improvements in scalable audio coding
09/18/2003US20030177011 Audio data interpolation apparatus and method, audio data-related information creation apparatus and method, audio data interpolation information transmission apparatus and method, program and recording medium thereof
09/18/2003US20030177005 Method and device for producing acoustic models for recognition and synthesis simultaneously
09/18/2003US20030177004 Transcoding method and system between celp-based speech codes
09/18/2003US20030176936 Digital signal processing apparatus and processing method, and digital signal reproduction/ reception system
09/18/2003US20030174861 Connected audio and other media objects
09/18/2003US20030174860 Encoding and decoding methods in which decryption data is conveyed steganographically within audio or visual content
09/18/2003US20030172798 Recorder, method for recording music, player, method for reproducing the music and system for ensemble on the basis of music data codes differently formatted
09/18/2003US20030172797 Universal digital media communications and control system and method
09/17/2003EP1345332A1 CODING METHOD, APPARATUS, DECODING METHOD, AND APPARATUS
09/17/2003EP1345331A1 Encoder and decoder
09/17/2003EP1345222A1 Reproducing device, reproducing method and audio data storage medium
09/17/2003EP1344036A1 Method and a communication apparatus in a communication system
09/17/2003EP1285436B1 Improved spectral translation/folding in the subband domain
09/17/2003CN1443400A Inband signaling over digital wireless tele communications networks
09/17/2003CN1443349A Method and apparatus for removing noise from electronic signals
09/17/2003CN1442985A Multichannel interconnected vocoder and its realizing method
09/17/2003CN1442956A Method and equipment for coding and decoding of digital information signal
09/17/2003CN1121776C Telephone apparatus with audio recording function
09/17/2003CN1121769C Method and apparatus for processing speech coding parameters in telecommunication system
09/17/2003CN1121683C 语音编码 Speech coding
09/17/2003CN1121682C Very low bit rate voice messaging system using asymmetric voice compression processing
09/17/2003CN1121677C Device for determining quality of output signal to be generated by a signal processing circuit, and method therefor
09/17/2003CN1121609C Method and arrangement for reconstruction of received speech signal
09/16/2003US6622120 Fast search method for LSP quantization
09/16/2003US6621881 Broadcast encoding system and method
09/16/2003CA2285650C Method for decoding an audio signal with transmission error correction
09/16/2003CA2260297C Transfer scheme for speech and voice band signals and isdn digital signals using reduced transmission bandwidth over atm
09/12/2003WO2003075459A1 Automatic audio recorder-player and operating method therefor
09/11/2003WO2003075565A1 Audio frequency scaling during video trick modes utilizing digital signal processing
09/11/2003US20030172341 Data recording medium, data recording method and apparatus, data playback method and apparatus, and data determination method
09/11/2003US20030172337 Signal reproducing apparatus and method, signal recording apparatus and method, signal receiver, and information processing method
09/11/2003US20030172277 Digital watermark system
09/11/2003US20030171937 Apparatus for reproducing encoded digital audio signal at variable speed
09/11/2003US20030171936 Method of segmenting an audio stream
09/11/2003US20030171935 Apparatus and Method for Audio Data/Audio-Related Information Transfer
09/11/2003US20030171934 Scalable audio communication
09/11/2003US20030171922 Method and device for objective speech quality assessment without reference signal
09/11/2003US20030171920 Error resilient scalable audio coding
09/11/2003US20030171919 Scalable lossless audio coding/decoding apparatus and method
09/11/2003US20030171918 Method of filtering noise of source digital data
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