| 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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| 04/14/2004 | CN1489292A Signal coding device and signal decoding device, and signal coding method and signal decoding method |
| 04/14/2004 | CN1146203C Dynamic bit allocation apparatus and method for audio coding |
| 04/14/2004 | CN1146130C Coder of input sygnal processing system and method of noise quantization of audio signals of shield screen |
| 04/14/2004 | CN1146129C Reduced complexity signal transmission system |
| 04/14/2004 | CN1145930C Method and apparatus for interleaving line spectral information quantization methods in s speech coder |
| 04/14/2004 | CN1145929C Transmission system with improved encoder and decoder |
| 04/14/2004 | CN1145928C Methods and apparatus for generating confort noise using parametric noise model statistics |
| 04/14/2004 | CN1145926C Method and apparatus for speech synthesis |
| 04/14/2004 | CN1145925C Transmitter with improved speech encoder and decoder |
| 04/13/2004 | US6721712 Conversion scheme for use between DTX and non-DTX speech coding systems |
| 04/13/2004 | US6721710 Method and apparatus for audible fast-forward or reverse of compressed audio content |
| 04/13/2004 | US6721709 Digital data player, and data processing method and data storage medium for the same |
| 04/13/2004 | US6721708 Power saving apparatus and method for AC-3 codec by reducing operations |
| 04/13/2004 | US6721704 Telephone conversation quality enhancer using emotional conversational analysis |
| 04/13/2004 | US6721701 Method and apparatus for sound discrimination |
| 04/13/2004 | US6721700 Audio coding method and apparatus |
| 04/13/2004 | US6721440 Low visibility watermarks using an out-of-phase color |
| 04/13/2004 | US6721437 Data processing apparatus, coding apparatus, data processing method and coding method |
| 04/13/2004 | US6721337 Method and apparatus for transmission and reception of compressed audio frames with prioritized messages for digital audio broadcasting |
| 04/13/2004 | US6721327 Delayed packet concealment method and apparatus |
| 04/13/2004 | US6721280 Method and apparatus for voice latency reduction in a voice-over-data wireless communication system |
| 04/13/2004 | US6721097 Optical element, its manufacturing method and optical element manufacturing metal die |
| 04/08/2004 | WO2004030341A1 Fingerprint extraction |
| 04/08/2004 | WO2004030260A2 Data communication through acoustic channels and compression |
| 04/08/2004 | WO2004029935A1 A system and method for low bit-rate compression of combined speech and music |
| 04/08/2004 | WO2004002041A3 Broadcast router having a multirate serial digital audio data stream encoder |
| 04/08/2004 | US20040068412 Energy-based nonuniform time-scale modification of audio signals |
| 04/08/2004 | US20040068407 Voice code sequence converting device and method |
| 04/08/2004 | US20040068405 Recording and reproducing apparatus for use with optical recording medium having real-time, losslessly encoded data |
| 04/08/2004 | US20040068404 Speech transcoder and speech encoder |
| 04/08/2004 | US20040068399 Method and apparatus for transmitting an audio stream having additional payload in a hidden sub-channel |
| 04/08/2004 | DE4033350B4 Verfahren und Vorrichtung für die Sprachverarbeitung Method and apparatus for speech processing |
| 04/07/2004 | EP1406261A1 Signal reproducing apparatus and signal reproducing method |
| 04/07/2004 | EP1405303A1 Wideband signal transmission system |
| 04/07/2004 | EP1405302A1 Method for masking interference during the transfer of digital audio signals |
| 04/07/2004 | EP1405220A1 Selective processing of data embedded in a multimedia file |
| 04/07/2004 | EP1405169A2 Information processing apparatus and method, and program |
| 04/07/2004 | EP1269792B1 Multichannel voice recorder |
| 04/07/2004 | EP1141946B1 Coded enhancement feature for improved performance in coding communication signals |
| 04/07/2004 | CN1488137A Enhanced conversion of wideband signals to narrow band signals |
| 04/07/2004 | CN1488135A Vector quantizing device for LPC parameters |
| 04/07/2004 | CN1487746A Method and equipment for coding or decoding audio signal |
| 04/07/2004 | CN1487679A Transmission system and operating method thereof |
| 04/07/2004 | CN1145144C Speech decoder for decoding background noise signals with high quality |
| 04/07/2004 | CN1145143C Comprehensive analysized speech coding method |
| 04/07/2004 | CN1145142C Vector quantization method and speech coding method and apparatus |
| 04/06/2004 | US6718300 Method and apparatus for reducing aliasing in cascaded filter banks |
| 04/06/2004 | US6718298 Digital communications apparatus |
| 04/06/2004 | US6718295 Speech band division decoder |
| 04/06/2004 | US6718183 System and method for reducing data quality degradation due to encoding/decoding |
| 04/06/2004 | US6718047 Watermark embedder and reader |
| 04/06/2004 | US6718046 Low visibility watermark using time decay fluorescence |
| 04/06/2004 | CA2331228C Packet loss compensation method using injection of spectrally shaped noise |
| 04/06/2004 | CA2279923C Predictive coding method and decoding method for dynamic image |
| 04/01/2004 | WO2004027998A2 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 04/01/2004 | WO2004027368A1 Audio decoding apparatus and method |
| 04/01/2004 | WO2004003499A3 Compensation for utterance dependent articulation for speech quality assessment |
| 04/01/2004 | WO2003096326A9 Audio compression |
| 04/01/2004 | US20040064573 Transmission and reception of audio and/or video material |
| 04/01/2004 | US20040064416 Secure distribution of digital content |
| 04/01/2004 | US20040064380 Contents supplying system |
| 04/01/2004 | US20040064325 Intelligent use of encoder unused bandwidth in a digital audio broadcast |
| 04/01/2004 | US20040064324 Bandwidth expansion using alias modulation |
| 04/01/2004 | US20040064320 Integrating external voices |
| 04/01/2004 | US20040064313 Noise reduction apparatus with a function of preventing data degradation |
| 04/01/2004 | US20040064312 Method and device for encoding wideband speech, allowing in particular an improvement in the quality of the voiced speech frames |
| 04/01/2004 | US20040064311 Efficient coding of high frequency signal information in a signal using a linear/non-linear prediction model based on a low pass baseband |
| 04/01/2004 | US20040064310 Sub-band adaptive differential pulse code modulation/encoding apparatus, sub-band adaptive differential pulse code modulation/encoding method, wireless transmission system, sub-band adaptive differential pulse code modulation/decoding apparatus, sub-band adaptive differential pulse code modulation/decoding method, and wirel |
| 04/01/2004 | US20040064309 Mobile communicator and method for deciding speech coding rate in mobile communicator |
| 04/01/2004 | US20040064308 Method and apparatus for speech packet loss recovery |
| 04/01/2004 | US20040062274 Efficient in-band signaling for discontinuous transmission and configuration changes in adaptive multi-rate communications systems |
| 04/01/2004 | US20040062260 Multi-level jitter control |
| 04/01/2004 | CA2688916A1 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 03/31/2004 | EP1404039A2 Apparatus and method for transmission of audio data and audio-related information |
| 03/31/2004 | EP1403867A1 Device control method, data transfer apparatus, and recording medium |
| 03/31/2004 | EP1403854A2 Multi-channel audio encoding and decoding |
| 03/31/2004 | EP1403853A1 Digital signal processing apparatus and processing method, and digital signal reproduction/reception system |
| 03/31/2004 | EP1403851A1 Signal coupling method and apparatus |
| 03/31/2004 | EP1403847A2 System, method and computer program for ensuring secure use of music playing data files |
| 03/31/2004 | EP1403804A2 Contents supplying system |
| 03/31/2004 | EP1402517A1 Speech feature extraction system |
| 03/31/2004 | EP1163668A4 An adaptive post-filtering technique based on the modified yule-walker filter |
| 03/31/2004 | EP1080548A4 Combined analog/digital data transmission system |
| 03/31/2004 | EP0931310B1 Systems and methods for communicating desired audio information over a communications medium |
| 03/31/2004 | EP0820663B1 7-channel transmission, compatible with 5-channel transmission and 2-channel transmission |
| 03/31/2004 | CN1486486A Method, device and program for coding and decoding acoustic parameter, and method, device and program for coding and decoding sound |
| 03/31/2004 | CN1486478A Display device |
| 03/31/2004 | CN1485815A Portable device capable of voice encrypting and decrypting |
| 03/31/2004 | CN1144411C Apparatus for signal transmission and receiving |
| 03/31/2004 | CN1144400C Post-compression hidden data transport for video |
| 03/31/2004 | CN1144357C Constant interval sub-band analysis and synthesis filter for MPEG audio |
| 03/31/2004 | CN1144180C Method and apparatus for preforming reducer rate variable rate vocoding |
| 03/31/2004 | CN1144179C Information decorder and decoding method, information encoder and encoding method and distribution medium |
| 03/31/2004 | CN1144178C Audio signal encoder, audio signal decoder, and method for encoding and decoding audio signal |
| 03/31/2004 | CN1144177C Method and apparatus for eight-rate random number generation for speech coders |
| 03/30/2004 | US6715125 Source coding and transmission with time diversity |
| 03/30/2004 | US6714912 Digital cordless phone system for improving distance of speech communication using error concealment and method thereof |
| 03/30/2004 | US6714908 Modified concealing device and method for a speech decoder |
| 03/30/2004 | US6714907 Codebook structure and search for speech coding |
| 03/25/2004 | WO2004025842A2 System for efficient recovery of node-b buffered data following mac layer reset |