| 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) |
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| 01/14/2003 | US6507814 Pitch determination using speech classification and prior pitch estimation |
| 01/09/2003 | WO2003003350A1 Wideband signal transmission system |
| 01/09/2003 | WO2003003348A1 Selection of coding parameters based on spectral content of a speech signal |
| 01/09/2003 | WO2003003345A1 Device and method for interpolating frequency components of signal |
| 01/09/2003 | US20030009340 Synthetic voice sales system and phoneme copyright authentication system |
| 01/09/2003 | US20030009332 Sinusoidal model based coding of audio signals |
| 01/09/2003 | US20030009328 Method for decompressing a compressed audio signal |
| 01/09/2003 | US20030009326 Frequency domain postfiltering for quality enhancement of coded speech |
| 01/09/2003 | US20030009325 Method for signal controlled switching between different audio coding schemes |
| 01/09/2003 | US20030008618 Method, apparatus, and system for delivering contents |
| 01/09/2003 | US20030006916 Bit-rate converting apparatus and method thereof |
| 01/08/2003 | WO2002007149A1 Method for concealing transmission errors in digital audio data |
| 01/08/2003 | EP1274070A2 Bit-rate converting apparatus and method thereof |
| 01/08/2003 | EP1273005A1 Wideband speech codec using different sampling rates |
| 01/08/2003 | EP0993672B1 Method for voice signal coding and/or decoding by means of a long term prediction and a multipulse excitation signal |
| 01/08/2003 | EP0898267B1 Speech coding system |
| 01/08/2003 | EP0892974B1 Method and arrangement for reconstruction of a received speech signal |
| 01/08/2003 | EP0808496B1 Algebraic codebook with signal-selected pulse amplitudes for fast coding of speech |
| 01/08/2003 | CN1389853A Phonetic codec chip capable of realizing impedance matching and mixed balance |
| 01/07/2003 | US6505160 Connected audio and other media objects |
| 01/07/2003 | US6504905 System and method of testing voice signals in a telecommunication system |
| 01/07/2003 | US6504870 Broadcast encoding system and method |
| 01/07/2003 | CA2091560C Methods for speech analysis and synthesis |
| 01/03/2003 | WO2003001801A1 Data transmitting device and method |
| 01/03/2003 | WO2003001709A1 Transmission apparatus, transmission method, reception apparatus, reception method, and transmission/reception apparatus |
| 01/03/2003 | WO2003001510A1 Digital signal processing apparatus and processing method, and digital signal reproduction/reception system |
| 01/03/2003 | WO2003001509A1 Method for masking interference during the transfer of digital audio signals |
| 01/03/2003 | WO2003001508A1 Method for multiple access and transmission in a point-to-multipoint system on an electric network |
| 01/03/2003 | WO2003001172A1 Method and device for coding speech in analysis-by-synthesis speech coders |
| 01/02/2003 | US20030004718 Signal modification based on continous time warping for low bit-rate celp coding |
| 01/02/2003 | US20030004713 Signal processing apparatus and method, signal coding apparatus and method , and signal decoding apparatus and method |
| 01/02/2003 | US20030004711 Method for coding speech and music signals |
| 01/02/2003 | US20030004710 Short-term enhancement in celp speech coding |
| 01/02/2003 | US20030004709 Method and apparatus for coding successive pitch periods in speech signal |
| 01/02/2003 | US20030004708 Method and apparatus for editing data streams |
| 01/02/2003 | US20030004589 Watermarking |
| 01/02/2003 | US20030002710 Digital authentication with analog documents |
| 01/02/2003 | US20030002609 Method and apparatus for frame-based buffer control in a communication system |
| 01/02/2003 | US20030002417 Reproducing device, reproducing method and audio data storage medium |
| 01/02/2003 | US20030002398 Recording medium, editing method and editing apparatus |
| 01/02/2003 | EP1271472A2 Frequency domain postfiltering for quality enhancement of coded speech |
| 01/02/2003 | EP1271471A2 Signal modification based on continuous time warping for low bitrate celp coding |
| 01/02/2003 | EP1269792A1 Multichannel voice recorder |
| 01/02/2003 | EP1269740A1 Digital computer systems |
| 01/02/2003 | EP1269669A2 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 |
| 01/01/2003 | CN1389059A Speech qality estimation for off-line speech recognition |
| 01/01/2003 | CN1388968A Recording/reproducing method and recorder/reproducer for record medium containing copyright management data |
| 01/01/2003 | CN1388965A Audio signal compression |
| 01/01/2003 | CN1388964A Audio signal processing with adaptive noise-shaping modulation |
| 01/01/2003 | CN1388955A Digital inter ference apparatus |
| 01/01/2003 | CN1388517A Audio coding/decoding technology based on pseudo wavelet filtering |
| 01/01/2003 | CN1097816C Digital speech coder with optimized signal energy parameters |
| 12/31/2002 | US6502073 Low data transmission rate and intelligible speech communication |
| 12/31/2002 | US6502071 Comfort noise generation in a radio receiver, using stored, previously-decoded noise after deactivating decoder during no-speech periods |
| 12/31/2002 | US6502069 Method and a device for coding audio signals and a method and a device for decoding a bit stream |
| 12/31/2002 | US6502068 Multipulse search processing method and speech coding apparatus |
| 12/31/2002 | US6502066 System for generating formant tracks by modifying formants synthesized from speech units |
| 12/31/2002 | US6501751 Voice communication with simulated speech data |
| 12/31/2002 | CA2242346C Method and apparatus for compressing and transmitting high speed data |
| 12/31/2002 | CA2099655C Speech encoding |
| 12/27/2002 | WO2002103698A1 Signal reproducing apparatus and signal reproducing method |
| 12/27/2002 | WO2002103695A2 Device and method for embedding a watermark in an audio signal |
| 12/27/2002 | WO2002103685A1 Encoding apparatus and method, decoding apparatus and method, and program |
| 12/27/2002 | WO2002103684A1 Method and device for processing time-discrete audio sampled values |
| 12/27/2002 | WO2002103683A1 Encoding apparatus and encoding method |
| 12/27/2002 | WO2002103682A1 Acoustic signal encoding method and apparatus, acoustic signal decoding method and apparatus, and recording medium |
| 12/27/2002 | WO2002103676A1 Speech feature extraction system |
| 12/27/2002 | WO2002103572A1 Selective processing of data embedded in a multimedia file |
| 12/27/2002 | WO2002080372A3 Reduced data stream for transmitting a signal |
| 12/27/2002 | WO2002065651A3 Method of inserting additional data into a compressed signal |
| 12/27/2002 | WO2001033788A9 System for lost packet recovery in voice over internet protocol based on time domain interpolation |
| 12/27/2002 | CA2450230A1 Speech feature extraction system |
| 12/26/2002 | US20020198711 Speech feature extraction system |
| 12/26/2002 | US20020198708 Vocoder for a mobile terminal using discontinuous transmission |
| 12/26/2002 | US20020198703 Method and system for verifying derivative digital files automatically |
| 12/26/2002 | US20020198690 System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources |
| 12/26/2002 | US20020198615 Coding device and method, and recording medium |
| 12/26/2002 | US20020196762 Packet converting apparatus and method therefor |
| 12/26/2002 | US20020196714 Method and apparatus for reproducing information |
| 12/26/2002 | US20020196713 Recording medium, editing method and editing apparatus |
| 12/25/2002 | CN1097396C Sound encoding device and method |
| 12/24/2002 | US6499084 Digital recording and reproducing apparatus capable of determining whether data was rewritten or not |
| 12/24/2002 | US6499060 Media coding for loss recovery with remotely predicted data units |
| 12/24/2002 | US6499010 Perceptual audio coder bit allocation scheme providing improved perceptual quality consistency |
| 12/24/2002 | US6499009 Handling variable delay in objective speech quality assessment |
| 12/24/2002 | US6499008 Transceiver for selecting a source coder based on signal distortion estimate |
| 12/24/2002 | US6498960 Receiver for digital audio broadcast |
| 12/24/2002 | US6498834 Speech information communication system |
| 12/24/2002 | US6498811 Lossless encoding/decoding in a transmission system |
| 12/19/2002 | WO2002101933A1 Compressing device and method, decompressing device and method, compressing/decompressing system, program, record medium |
| 12/19/2002 | WO2002101727A1 Method and system for determining filter gain and automatic gain control |
| 12/19/2002 | WO2002101726A1 Unified filter bank for audio coding |
| 12/19/2002 | WO2002101725A1 Editing of audio signals |
| 12/19/2002 | WO2002101724A1 Method and system for implementing a low complexity spectrum estimation technique for comfort noise generation |
| 12/19/2002 | WO2002101723A1 Method and system for implementing a gaussian white noise generator for real time speech synthesis applications |
| 12/19/2002 | WO2002101722A1 Method and system for generating colored comfort noise in the absence of silence insertion description packets |
| 12/19/2002 | WO2002101718A2 Coding successive pitch periods in speech signal |
| 12/19/2002 | US20020193993 Voice communication with simulated speech data |
| 12/19/2002 | US20020193988 Wideband extension of telephone speech for higher perceptual quality |
| 12/19/2002 | US20020193987 Variable rate speech data compression |