Patents
Patents for G10L 21 - Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility (18,985)
08/2002
08/06/2002US6430528 Method and apparatus for demixing of degenerate mixtures
08/06/2002US6430295 Methods and apparatus for measuring signal level and delay at multiple sensors
08/01/2002WO2002060166A1 Efficient buffer allocation for current and predicted active speakers in voice conferencing systems
08/01/2002WO2002060075A2 Enhanced conversion of wideband signals to narrowband signals
08/01/2002WO2002060069A1 Data processing apparatus
08/01/2002WO2002060057A1 Asymmetric multichannel filter
08/01/2002WO2002059772A2 Blind decomposition using fourier and wavelet transforms
08/01/2002WO2002025886A8 Digital signal processing techniques for improving audio clarity and intelligibility
08/01/2002WO2001003110A9 Off-site detention monitoring system
08/01/2002US20020103640 Methods and apparatus for reducing noise associated with an electrical speech signal
08/01/2002US20020103638 System for improved use of pitch enhancement with subcodebooks
08/01/2002US20020103637 Enhancing the performance of coding systems that use high frequency reconstruction methods
08/01/2002US20020103619 Statistics generator system and method
08/01/2002US20020102960 Sound generating device and method for a mobile terminal of a wireless telecommunication system
08/01/2002US20020101422 Method for automatically animating lip synchronization and facial expression of animated characters
08/01/2002US20020101368 Method of reproducing audio signals without causing tone variation in fast or slow playback mode and reproducing apparatus for the same
07/2002
07/31/2002EP1227471A1 Apparatus and program for separating a desired sound from a mixed input sound
07/31/2002EP1226578A1 Techniques for improving audio clarity and intelligibility at reduced bit rates over a digital network
07/31/2002EP1226454A1 Method to determine whether an acoustic source is near or far from a pair of microphones
07/31/2002EP0897574B1 A noisy speech parameter enhancement method and apparatus
07/31/2002CN1361972A Enhancement of near-end voice signals in an echo suppression system
07/31/2002CN1361941A Spectrum modeling
07/30/2002US6427140 Systems and methods for secure transaction management and electronic rights protection
07/30/2002US6427136 Sound device for expansion station
07/30/2002US6427134 Voice activity detector for calculating spectral irregularity measure on the basis of spectral difference measurements
07/25/2002WO2002058053A1 Encoding method and decoding method for digital voice data
07/25/2002WO2002058052A1 Wideband signal transmission system
07/25/2002WO2002058010A2 Character animation system
07/25/2002US20020099554 Speech therapy system and method
07/25/2002US20020099540 Modified vector generator
07/25/2002US20020097857 Efficient buffer allocation for current and predicted active speakers in voice conferencing systems
07/25/2002US20020097807 Wideband signal transmission system
07/25/2002US20020097380 Film language
07/24/2002EP1224660A1 Emphasis of short-duration transient speech features
07/24/2002CN1360716A Bidirectional pitch enhancement in speech coding systems
07/23/2002US6425082 Watermark applied to one-dimensional data
07/23/2002US6424960 Unsupervised adaptation and classification of multiple classes and sources in blind signal separation
07/18/2002WO2002056511A1 Suppression of periodic interference in a communications system
07/18/2002WO2002056303A2 Noise filtering utilizing non-gaussian signal statistics
07/18/2002WO2002056302A2 Noise reduction apparatus and method
07/18/2002WO2002056301A1 Speech bandwidth extension
07/18/2002WO2002056295A2 Speech bandwidth extension
07/18/2002WO2002009090A3 Continuously variable time scale modification of digital audio signals
07/18/2002US20020095296 Technique for improved audio compression
07/18/2002US20020095292 Personalized system for providing improved understandability of received speech
07/18/2002US20020095284 System of dynamic pulse position tracks for pulse-like excitation in speech coding
07/18/2002US20020093919 Fast converging affine projection based echo canceller for sparse multi-path channels
07/17/2002EP1046153B1 A system and method for encoding voice while suppressing acoustic background noise
07/17/2002CN1359231A Audio signal reproducing method and apparatus without changing tone in fast or slow speed replaying mode
07/16/2002US6421642 Device and method for reproduction of sounds with independently variable duration and pitch
07/16/2002US6421639 Apparatus and method for providing an excitation vector
07/16/2002US6421637 Pitch shifting apparatus and method
07/11/2002WO2002054744A1 Audio signal quality enhancement in a digital network
07/11/2002WO2002054388A1 Tactile communication system
07/11/2002WO2002054387A1 Noise removing method and device
07/11/2002WO2002054382A1 Voice-controlled televison set and operating method thereof
07/11/2002US20020091517 Method and apparatus for the automatic separating and indexing of multi-speaker conversations
07/11/2002US20020089504 System and method for automatic animation generation
07/11/2002CA2433551A1 Method and apparatus for noise suppression
07/11/2002CA2433440A1 Tactile communication system
07/10/2002EP1221197A1 Digital filter design method and apparatus for noise suppression by spectral substraction
07/10/2002EP1023717B1 System, method and program data carrier for representing complex information auditorially
07/09/2002US6418159 Portable radio telephone equipment and control thereof
07/09/2002CA2215746C Method and apparatus for separation of sound source, program recorded medium therefor, method and apparatus for detection of sound source zone, and program recorded medium therefor
07/04/2002WO2002052546A1 Voice barge-in in telephony speech recognition
07/04/2002WO2002052545A1 Enhancing source coding systems by adaptive transposition
07/04/2002WO2002023537A8 System for enhancing perceptual quality of decoded speech
07/04/2002US20020087304 Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering
07/04/2002US20020085725 System output control method and apparatus
07/04/2002US20020085685 System for text assisted telephony
07/04/2002US20020085022 Presentation system, method for generating presentation data, and program for generating presentation data
07/03/2002CN2498028Y Phonetic reminder for taxi passenger to lose luggage
07/03/2002CN1357136A Improving sound quality of established low bit-rate audio coding systems without loss of decoder compatibility
07/02/2002US6415253 Method and apparatus for enhancing noise-corrupted speech
07/02/2002US6413098 Method and device for enhancing the recognition of speech among speech-impaired individuals
07/02/2002US6413097 Method and device for enhancing the recognition of speech among speech-impaired individuals
07/02/2002US6413096 Method and device for enhancing the recognition of speech among speech-impaired individuals
07/02/2002US6413095 Method and device for enhancing the recognition of speech among speech-impaired individuals
07/02/2002US6413094 Method and device for enhancing the recognition of speech among speech-impaired individuals
07/02/2002US6413093 Method and device for enhancing the recognition of speech among speech-impaired individuals
07/02/2002US6413092 Method and device for enhancing the recognition of speech among speech-impaired individuals
06/2002
06/27/2002WO2002050813A2 Generating visual representation of speech by any individuals of a population
06/27/2002WO2002023534A3 Selection of coding parameters based on spectral content of a speech signal
06/27/2002WO2001084275A3 Virtual representatives for use as communications tools
06/27/2002US20020082828 Method and apparatus to prepare listener-interest-filtered works
06/27/2002US20020080399 Data processing apparatus, data processing method, data processing program, and computer-readable memory storing codes of data processing program
06/27/2002CA2432021A1 Generating visual representation of speech by any individuals of a population
06/26/2002EP1217614A1 Vector quantization codebook generation method
06/26/2002EP1216527A1 Apparatus and method for de-esser using adaptive filtering algorithms
06/26/2002EP1216504A1 Spectrum modeling
06/26/2002EP1216474A1 Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
06/26/2002CN2497392Y Intelligent voice shopping-guide tour-guide apparatus
06/26/2002CN1355916A Signal noise reduction by time-domain spectral substraction
06/25/2002US6411925 Speech processing apparatus and method for noise masking
06/20/2002WO2002049218A1 Encoder and decoder
06/20/2002WO2002049002A1 Method and system for voice processing of a series of phonemes
06/20/2002WO2002029780A3 Speech detection with source separation
06/20/2002WO2002023523A3 Fast waveform synchronization for concatenation and time-scale modification of speech
06/20/2002US20020077832 Computer based integrated text/graphic document analysis
06/20/2002US20020077831 Data input/output method and system without being notified