| 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) |
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| 01/11/2001 | WO2001003317A1 Coded domain adaptive level control of compressed speech |
| 01/11/2001 | WO2001003316A1 Coded domain echo control |
| 01/11/2001 | WO2001003125A1 Bi-directional pitch enhancement in speech coding systems |
| 01/11/2001 | WO2001003124A1 Speech bandwidth expansion |
| 01/11/2001 | WO2001003113A1 Robust speech processing from noisy speech models |
| 01/11/2001 | WO2001003110A2 Off-site detention monitoring system |
| 01/11/2001 | WO2001002929A2 Coded domain noise control |
| 01/11/2001 | DE19938158C1 Acoustic signal loss compensation method for automobile intercom device determines signal transmission path for providing transmission function parameter used for controlling acoustic signal level |
| 01/11/2001 | CA2378062A1 Coded domain adaptive level control of compressed speech |
| 01/11/2001 | CA2378035A1 Coded domain noise control |
| 01/11/2001 | CA2378012A1 Coded domain echo control |
| 01/10/2001 | CN1279805A System and method for auditorially representing pages of HTML data |
| 01/10/2001 | CN1279804A System and method for auditorially representing pages of SGML data |
| 01/09/2001 | US6173258 Method for reducing noise distortions in a speech recognition system |
| 01/09/2001 | US6173257 Completed fixed codebook for speech encoder |
| 01/09/2001 | US6173256 Method and apparatus for audio representation of speech that has been encoded according to the LPC principle, through adding noise to constituent signals therein |
| 01/09/2001 | US6173255 Synchronized overlap add voice processing using windows and one bit correlators |
| 01/09/2001 | US6173254 Recorded message playback system for a variable bit rate system |
| 01/09/2001 | US6173062 Frequency transpositional hearing aid with digital and single sideband modulation |
| 01/09/2001 | US6173056 Methods for adjusting audio signals responsive to changes in a power supply level and related communications devices |
| 01/09/2001 | US6172561 High volume expander circuit |
| 01/04/2001 | WO2001001373A2 Electronic book with voice synthesis and recognition |
| 01/04/2001 | DE10023157A1 Vorrichtung und Verfahren zum Verarbeiten der Phaseninformation eines akustischen Signals Apparatus and method for processing the phase information of an acoustic signal |
| 01/04/2001 | CA2377405A1 Electronic book with voice emulation features |
| 01/03/2001 | EP1065657A1 Method for detecting a noise domain |
| 01/03/2001 | EP1065656A2 Method for reducing noise in an input speech signal |
| 01/03/2001 | EP1065651A1 Music apparatus with pitch shift of input voice dependently on timbre change |
| 01/03/2001 | EP1064822A1 Method and device for operating a microphone system, especially in a motor vehicle |
| 01/03/2001 | EP1064648A1 Wideband speech synthesis from a narrowband speech signal |
| 01/03/2001 | CN1278638A Speech-sound coil support of driving device for computer hard-disc |
| 01/02/2001 | US6169971 Method to suppress noise in digital voice processing |
| 12/28/2000 | WO2000079520A1 Improving sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
| 12/27/2000 | EP1062659A1 Method and device for processing a sound signal |
| 12/27/2000 | EP0970464A4 A method for enhancing 3-d localization of speech |
| 12/27/2000 | EP0628195B1 Method for encoding, decoding and compression of audio-type data |
| 12/26/2000 | US6167376 Computer system with integrated telephony, handwriting and speech recognition functions |
| 12/26/2000 | US6167373 Linear prediction coefficient analyzing apparatus for the auto-correlation function of a digital speech signal |
| 12/21/2000 | WO2000077774A1 Noise signal encoder and voice signal encoder |
| 12/21/2000 | CA2374879A1 Voice-to-remaining audio (vra) interactive hearing aid & auxiliary equipment |
| 12/20/2000 | CN1277530A Stereo signal processing device |
| 12/20/2000 | CN1277500A Noise suppressor |
| 12/19/2000 | US6163766 Adaptive rate system and method for wireless communications |
| 12/19/2000 | CA2218768C System and method for enhanced intelligibility of voice messages |
| 12/19/2000 | CA2153170C Transmitted noise reduction in communications systems |
| 12/14/2000 | WO2000075920A1 A method of improving the intelligibility of a sound signal, and a device for reproducing a sound signal |
| 12/14/2000 | WO2000075918A1 Weighted spectral distance calculator |
| 12/13/2000 | EP1059628A2 Signal for noise redudction by spectral subtraction |
| 12/13/2000 | EP1058925A1 System and method for noise-compensated speech recognition |
| 12/13/2000 | CN1276898A Reducing sparseness in coded speech signals |
| 12/13/2000 | CN1276896A Method for suppressing noise in digital speech signal |
| 12/12/2000 | US6159014 Method and apparatus for training of cognitive and memory systems in humans |
| 12/12/2000 | CA2189134C A pitch post-filter |
| 12/07/2000 | WO2000074362A2 Methods and apparatus for improving adaptive filter performance by inclusion of inaudible information |
| 12/07/2000 | WO2000045379A3 Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting |
| 12/05/2000 | US6157909 Process and device for blind equalization of the effects of a transmission channel on a digital speech signal |
| 12/05/2000 | US6157908 Order point communication system and method |
| 12/05/2000 | US6157670 Background energy estimation |
| 12/05/2000 | US6157403 Apparatus for detecting position of object capable of simultaneously detecting plural objects and detection method therefor |
| 11/30/2000 | WO2000072567A1 Acoustic echo cancellation |
| 11/30/2000 | WO2000072565A1 Enhancement of near-end voice signals in an echo suppression system |
| 11/30/2000 | WO2000072564A2 Echo compensation device |
| 11/30/2000 | WO2000072310A1 Audio signal time scale modification |
| 11/30/2000 | WO2000072308A1 Interval normalization device for voice recognition input voice |
| 11/30/2000 | WO2000072305A2 A method and apparatus for noise reduction in speech signals |
| 11/30/2000 | DE10025655A1 Adaptive signal separation involves approximating signal spectral power density, separating error component from approximation, determining wanted component from error component |
| 11/29/2000 | CN1275001A Adaptive filter emitting control in echo suppressor using structure lagging amplitude distribution estimation method |
| 11/28/2000 | CA2001164C Text-processing system |
| 11/23/2000 | WO2000070769A1 Method and apparatus for expanding band of audio signal |
| 11/22/2000 | EP1054400A2 Signal processing method and apparatus, and information serving medium |
| 11/22/2000 | EP1054388A2 Method and apparatus for determining the state of voice controlled devices |
| 11/22/2000 | EP1038291A4 Apparatus and methods for detecting emotions |
| 11/22/2000 | CN1274146A Sound synthetizer and method, telephone device and program service medium |
| 11/21/2000 | US6151397 Method and system for reducing undesired signals in a communication environment |
| 11/16/2000 | WO2000068936A1 Cancellation of non-stationary interfering signals for speech recognition |
| 11/15/2000 | EP1052619A2 Adaptive filter divergence control in echo cancelers by means of amplitude distribution evaluation with configurable hysteresis |
| 11/15/2000 | EP1052612A1 Watermark applied to one-dimensional data |
| 11/15/2000 | EP0979506A4 Apparatus and method for rate determination in a communication system |
| 11/15/2000 | CN1273663A Transmission system with improved speech encoder |
| 11/14/2000 | US6148105 Character recognizing and translating system and voice recognizing and translating system |
| 11/09/2000 | WO2000067414A2 A method and apparatus for providing continuous playback of audio and audio-visual streamed multimedia having non-deterministic delays |
| 11/08/2000 | EP1027697A4 Pitch detection and intonation correction apparatus and method |
| 11/07/2000 | US6144937 Noise suppression of speech by signal processing including applying a transform to time domain input sequences of digital signals representing audio information |
| 11/02/2000 | EP1049072A2 Graphical user interface and method for modyfying pronunciations in text-to-speech and speech recognition systems |
| 11/01/2000 | CN1272259A Source coding enhancement using spectral-band replication |
| 11/01/2000 | CN1272199A Sound deorder and sound decording method |
| 10/31/2000 | US6141643 Data input glove having conductive finger pads and thumb pad, and uses therefor |
| 10/30/2000 | CA2306527A1 Graphical user interface and method for modifying pronunciations in text-to-speech and speech recognition systems |
| 10/26/2000 | WO2000063887A1 Noise suppression using external voice activity detection |
| 10/25/2000 | EP1047045A2 Sound synthesizing apparatus and method |
| 10/25/2000 | EP1046153A1 A system and method for encoding voice while suppressing acoustic background noise |
| 10/24/2000 | US6138093 High resolution post processing method for a speech decoder |
| 10/19/2000 | WO2000062281A1 Signal noise reduction by time-domain spectral subtraction |
| 10/19/2000 | WO2000062280A1 Signal noise reduction by time-domain spectral subtraction using fixed filters |
| 10/17/2000 | US6134322 Echo suppressor for a speech input dialogue system |
| 10/11/2000 | EP0750778B1 Speech synthesis |
| 10/11/2000 | CN1269902A Method and apparatus for measuring signal level and delay at multiple sensors |
| 10/10/2000 | US6131044 Method for increasing the voice recognition rate of a voice recognition calling device |
| 10/10/2000 | US6130949 Method and apparatus for separation of source, program recorded medium therefor, method and apparatus for detection of sound source zone, and program recorded medium therefor |
| 10/05/2000 | WO2000058928A1 Method and apparatus for signal processing |
| 10/05/2000 | DE19923601C1 Echo compensation device for hands-free telephone, uses calibration signal for providing coefficients for echo replicator simulating loudspeaker-room-microphone system |