| 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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| 09/17/2002 | US6452517 DSP for two clock cycle codebook search |
| 09/17/2002 | CA2252574C Methods and apparatus for generating noise signals from speech signals |
| 09/12/2002 | WO2002071396A1 Codebook structure and search for speech coding |
| 09/12/2002 | WO2002071395A2 Apparatus for coding scaling factors in an audio coder |
| 09/12/2002 | WO2002071394A1 Sound encoding apparatus and method, and sound decoding apparatus and method |
| 09/12/2002 | WO2002071389A1 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 |
| 09/12/2002 | WO2002071021A1 Method and system for encoding and decoding synchronized data within a media sequence |
| 09/12/2002 | US20020128839 Speech bandwidth extension |
| 09/12/2002 | US20020128838 Run time synthesizer adaptation to improve intelligibility of synthesized speech |
| 09/12/2002 | US20020128829 Speech encoding apparatus, speech encoding method, speech decoding apparatus, and speech decoding method |
| 09/12/2002 | US20020128828 Injecting high frequency noise into pulse excitation for low bit rate celp |
| 09/12/2002 | US20020128826 Speech recognition system and method, and information processing apparatus and method used in that system |
| 09/12/2002 | US20020128823 System and method for reception, processing and transmission of digital audio stream |
| 09/12/2002 | US20020128822 Method and apparatus for skipping and repeating audio frames |
| 09/12/2002 | US20020128821 Phrase-based dialogue modeling with particular application to creating recognition grammars for voice-controlled user interfaces |
| 09/12/2002 | US20020126550 Redundant memory circuit for analog semiconductor memory |
| 09/12/2002 | DE10109648A1 Method for characterizing audio signals on basis of their content, involves comparing signal tonality with number of known tonality measurements for known signals, which have different audio content |
| 09/12/2002 | CA2440820A1 Sound encoding apparatus and method, and sound decoding apparatus and method |
| 09/11/2002 | EP1239465A2 Method and apparatus for selecting an encoding rate in a variable rate vocoder |
| 09/11/2002 | EP1239464A2 Enhancement of the periodicity of the CELP excitation for speech coding and decoding |
| 09/11/2002 | EP1239463A2 Voice analyzing and synthesizing apparatus and method, and program |
| 09/11/2002 | EP1239462A1 Distributed speech recognition system and method |
| 09/11/2002 | EP1239456A1 Variable rate vocoder |
| 09/11/2002 | EP1239455A2 Method and system for implementing a Fourier transformation which is adapted to the transfer function of human sensory organs, and systems for noise reduction and speech recognition based thereon |
| 09/11/2002 | EP1238481A2 Method for decoding digital audio data |
| 09/11/2002 | EP1238390A1 Differentiation of error conditions in digital voice communication systems |
| 09/11/2002 | EP1237727A1 Printer with code sensor |
| 09/11/2002 | EP0906613B1 Method and device for coding an audio signal by "forward" and "backward" lpc analysis |
| 09/11/2002 | CN1369092A Scalable coding method for high quality audio |
| 09/11/2002 | CN1368820A Voice communication terminal and voice communication system |
| 09/10/2002 | US6449592 Method and apparatus for tracking the phase of a quasi-periodic signal |
| 09/10/2002 | US6449590 Speech encoder using warping in long term preprocessing |
| 09/10/2002 | US6449379 Video steganography methods avoiding introduction of fixed pattern noise |
| 09/10/2002 | US6449377 Methods and systems for watermark processing of line art images |
| 09/10/2002 | US6449313 Shaped fixed codebook search for celp speech coding |
| 09/06/2002 | WO2002069326A1 Multichannel signal spectral reconstruction method and device |
| 09/06/2002 | WO2002035856A3 Methods and apparatus for efficient vocoder implementations |
| 09/06/2002 | WO2002029808A3 Auxiliary channel masking in an audio signal |
| 09/06/2002 | WO2002017497A3 Method and apparatus for the predictive of audio signals |
| 09/06/2002 | CA2374725A1 Voice decode apparatus with packet error resistance, voice encoding decode apparatus and method thereof |
| 09/05/2002 | US20020123897 Speech data compression/expansion apparatus and method |
| 09/05/2002 | US20020123888 System for an adaptive excitation pattern for speech coding |
| 09/05/2002 | US20020123887 Concealment of frame erasures and method |
| 09/05/2002 | US20020123885 Transmission system with improved speech encoder |
| 09/05/2002 | US20020123884 Determining linear predictive coding filter parameters for encoding a voice signal |
| 09/05/2002 | US20020122518 Sampling frequency conversion apparatus |
| 09/04/2002 | EP1237284A1 Error correction decoder for vocoding system |
| 09/04/2002 | EP1237149A2 Scalable digital audio codec |
| 09/04/2002 | EP1236168A1 Coded surface with function flags |
| 09/04/2002 | EP1236159A1 Viewer with code sensor |
| 09/04/2002 | EP1151435B1 Data framing for adaptive-block-length coding system |
| 09/04/2002 | EP1149480B1 Method and device for inserting information into an audio signal, and method and device for detecting information inserted into an aufio signal |
| 09/04/2002 | EP0850471B1 Very low bit rate voice messaging system using variable rate backward search interpolation processing |
| 09/04/2002 | CN1367918A Methods and apparatus for generating comfort noise using parametric noise model statistics |
| 09/04/2002 | CN1090409C Transmission system utilizing different coding principles |
| 09/04/2002 | CN1090408C Casing mechanism of pager receiver |
| 09/03/2002 | US6446038 Method and system for objectively evaluating speech |
| 09/03/2002 | US6446037 Scalable coding method for high quality audio |
| 08/29/2002 | WO2002067257A1 Apparatus and method for controlling the copy and play of a digital audio contents |
| 08/29/2002 | WO2002067247A1 Voiced speech preprocessing employing waveform interpolation or a harmonic model |
| 08/29/2002 | WO2002067246A1 Method for determining optimum linear prediction coefficients |
| 08/29/2002 | WO2002043291A3 Perceptual audio signal compression system and method |
| 08/29/2002 | WO2002029509A3 Secure distribution of digital content |
| 08/29/2002 | US20020120675 Method of transferring media files over a communications network |
| 08/29/2002 | US20020120458 Real-time monitoring system for codec-effect sampling during digital processing of a sound source |
| 08/29/2002 | US20020120445 Coding signals |
| 08/29/2002 | US20020120442 Audio signal encoding apparatus |
| 08/29/2002 | US20020120439 Method and apparatus for providing comfort noise in communication system with discontinuous transmission |
| 08/29/2002 | US20020120438 Receiver for receiving a linear predictive coded speech signal |
| 08/29/2002 | US20020118956 Signal compressing apparatus |
| 08/29/2002 | US20020118845 Enhancing source coding systems by adaptive transposition |
| 08/29/2002 | US20020118740 Filter devices and methods |
| 08/29/2002 | US20020118650 Devices, software and methods for generating aggregate comfort noise in teleconferencing over VoIP networks |
| 08/28/2002 | EP1235380A1 Data reproducing/recording apparatus / method and list updating method |
| 08/28/2002 | EP1235204A2 Method and apparatus for selecting an excitation coding mode for speech coding |
| 08/28/2002 | EP1235203A2 Method for concealing erased speech frames and decoder therefor |
| 08/28/2002 | EP1234485A1 Method and apparatus for deriving at least one audio signal from two or more input audio signals |
| 08/28/2002 | EP1234464A1 Mobile phone with interactive printer |
| 08/28/2002 | EP1234288A1 Method and system for device control |
| 08/28/2002 | CN1366659A Error correction method with pitch change detection |
| 08/28/2002 | CN1366658A Voice encoding/decording device and method therefor |
| 08/28/2002 | CN1366631A Method and apparatus for secure content distribution |
| 08/28/2002 | CN1366412A Sound code cut-over method and device and sound communication terminal |
| 08/27/2002 | US6442517 Methods and system for encoding an audio sequence with synchronized data and outputting the same |
| 08/27/2002 | US6441764 Hybrid analog/digital signal coding |
| 08/27/2002 | US6441755 Device and method for entropy encoding of information words and device and method for decoding entropy-encoded information words |
| 08/22/2002 | WO2002065767A1 Information processor |
| 08/22/2002 | WO2002065651A2 Method of inserting additional data into a compressed signal |
| 08/22/2002 | WO2002065459A2 Method and apparatus for reducing undesired packet generation |
| 08/22/2002 | WO2002065458A2 Method and apparatus for interoperability between voice transmission systems during speech inactivity |
| 08/22/2002 | WO2002065457A2 Speech coding system with a music classifier |
| 08/22/2002 | WO2002065452A1 Method and apparatus for encoding and decoding pause information |
| 08/22/2002 | WO2002065449A1 Signal reproducing apparatus and method, signal recording apparatus and method, signal receiver, and information processing method |
| 08/22/2002 | WO2002065448A1 Content supply system and information processing method |
| 08/22/2002 | WO2002065386A1 Method and apparatus for the compression and decompression of image files using a chaotic system |
| 08/22/2002 | WO2002065157A2 Empirical mode decomposition for analyzing acoustical signals |
| 08/22/2002 | WO2002047068A3 Method and apparatus for robust speech classification |
| 08/22/2002 | WO2002029781A3 Speech to data converter |
| 08/22/2002 | WO2002007061A3 A speech communication system and method for handling lost frames |
| 08/22/2002 | US20020116199 Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec |