| 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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| 07/07/2004 | CN1157017C Communication system, receiver, device and method of correcting error of information channel |
| 07/07/2004 | CN1156840C Data replay circuit and sound recording and displaying device possessing said circuit |
| 07/07/2004 | CN1156822C Audio signal coding and decoding method and audio signal coder and decoder |
| 07/06/2004 | US6760754 System, method and apparatus for communicating via sound messages and personal sound identifiers |
| 07/06/2004 | US6760699 Soft feature decoding in a distributed automatic speech recognition system for use over wireless channels |
| 07/06/2004 | US6760698 System for coding speech information using an adaptive codebook with enhanced variable resolution scheme |
| 07/06/2004 | US6760463 Watermarking methods and media |
| 07/06/2004 | CA2371996C Method and system for encoding to mitigate decoding errors in a receiver |
| 07/01/2004 | WO2004040927A3 Apparatus and method for tandem-free vocoder operation between non-compatible communication systems by extracting inter- or intrasystem tfo-information |
| 07/01/2004 | US20040128130 Perceptual harmonic cepstral coefficients as the front-end for speech recognition |
| 07/01/2004 | US20040128128 Method and device for compressed-domain packet loss concealment |
| 07/01/2004 | US20040128126 Preprocessing of digital audio data for mobile audio codecs |
| 07/01/2004 | US20040128125 Variable rate speech codec |
| 07/01/2004 | US20040128123 Quality evaluation equipment of network speaking |
| 07/01/2004 | US20040125973 Subband acoustic feedback cancellation in hearing aids |
| 07/01/2004 | US20040125965 Method and apparatus for providing background audio during a communication session |
| 07/01/2004 | US20040125961 Silence detection |
| 07/01/2004 | US20040125241 Audio information transforming method, audio information transforming program, and audio information transforming device |
| 07/01/2004 | DE19549621B4 Vorrichtung zum Codieren von Audiosignalen An apparatus for encoding audio signals |
| 06/30/2004 | EP1433164A1 Improved frame erasure concealment for predictive speech coding based on extrapolation of speech waveform |
| 06/30/2004 | EP1433046A1 LOW POWER DIGITAL AUDIO DECODING/PLAYING SYSTEM FOR COMPUTING DEVICES |
| 06/30/2004 | EP1245024B1 Method for the error concealment of digital audio data by means of spectral equalisation |
| 06/30/2004 | EP1205045B1 Acoustic communication system |
| 06/30/2004 | EP1177557B1 Multi-format personal digital audio player |
| 06/30/2004 | CN1509469A Method and system for line spectral frequency vector quantization in speech codec |
| 06/30/2004 | CN1509468A Method for extimating codec parameter |
| 06/30/2004 | CN1155869C Power supply controller with speech recognition for PC |
| 06/29/2004 | US6757860 Channel error protection implementable across network layers in a communication system |
| 06/29/2004 | US6757659 Audio signal processing apparatus |
| 06/29/2004 | US6757658 Audio decoder core (acore) MPEG sub-band synthesis algorithmic optimization |
| 06/29/2004 | US6757654 Forward error correction in speech coding |
| 06/29/2004 | US6757650 Excitation vector generator, speech coder and speech decoder |
| 06/29/2004 | US6757649 Codebook tables for multi-rate encoding and decoding with pre-gain and delayed-gain quantization tables |
| 06/29/2004 | US6757648 Techniques for quantization of spectral data in transcoding |
| 06/29/2004 | US6757301 Detection of ending of fax/modem communication between a telephone line and a network for switching router to compressed mode |
| 06/24/2004 | WO2004054296A2 Tandem-free intersystem voice communication |
| 06/24/2004 | WO2004053837A1 A user terminal and method for distributed speech recognition |
| 06/24/2004 | WO2004053619A2 Method for processing digital data values |
| 06/24/2004 | US20040122680 Method and apparatus for providing coder independent packet replacement |
| 06/24/2004 | US20040120404 Variable length data encoding method, variable length data encoding apparatus, variable length encoded data decoding method, and variable length encoded data decoding apparatus |
| 06/24/2004 | US20040120309 Methods for changing the size of a jitter buffer and for time alignment, communications system, receiving end, and transcoder |
| 06/24/2004 | US20040119889 Audio information transforming method, video/audio format, encoder, audio information transforming program, and audio information transforming device |
| 06/23/2004 | EP1431963A1 Method and apparatus for encoding/decoding audio data with scalability |
| 06/23/2004 | EP1431962A2 Wideband speech coding system and method |
| 06/23/2004 | EP1431961A2 Post-compression hidden data transport |
| 06/23/2004 | CN1507731A Real-time control of playback rates in presentations |
| 06/23/2004 | CN1507618A Encoding and decoding device |
| 06/23/2004 | CN1507295A Communication terminal, communicating system |
| 06/23/2004 | CN1154976C Method and apparatus for reproducing speech signals and method for transmitting same |
| 06/23/2004 | CN1154975C Laguerre fonction for audio coding |
| 06/22/2004 | US6754784 Methods and circuits for securing encached information |
| 06/22/2004 | US6754633 Encoding a code signal into an audio or video signal |
| 06/22/2004 | US6754630 Synthesis of speech from pitch prototype waveforms by time-synchronous waveform interpolation |
| 06/22/2004 | US6754624 Codebook re-ordering to reduce undesired packet generation |
| 06/22/2004 | US6754619 Digital recording and playback system with voice recognition capability for concurrent text generation |
| 06/22/2004 | US6754618 Fast implementation of MPEG audio coding |
| 06/22/2004 | US6754547 Data reproduction circuit and voice recording reproduction apparatus comprising the circuit |
| 06/22/2004 | US6754377 Methods and systems for marking printed documents |
| 06/22/2004 | US6754342 Method and apparatus for concealing mute in an IP-based telephony system |
| 06/22/2004 | US6754265 VOCODER capable modulator/demodulator |
| 06/22/2004 | US6754232 Dynamic codec speed selection and bandwidth preallocation in a voice packet network method and apparatus |
| 06/22/2004 | US6753882 Wrist audio player system and wrist audio player device |
| 06/22/2004 | CA2281696C Apparatus and method for rate determination in a communication system |
| 06/17/2004 | WO2004051918A1 Watermarking digital representations that have undergone lossy compression |
| 06/17/2004 | WO2004051627A1 Audio coding |
| 06/17/2004 | WO2003096337A3 Watermark embedding and retrieval |
| 06/17/2004 | US20040117193 Audio decoding reproduction apparatus |
| 06/17/2004 | US20040117178 Sound encoding apparatus and method, and sound decoding apparatus and method |
| 06/17/2004 | US20040117177 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 06/17/2004 | US20040117176 Sub-sampled excitation waveform codebooks |
| 06/17/2004 | US20040117175 Optimized windows and methods therefore for gradient-descent based window optimization for linear prediction analysis in the ITU-T G.723.1 speech coding standard |
| 06/17/2004 | US20040117174 Communication terminal and communication system |
| 06/17/2004 | US20040114687 Method of inserting additonal data into a compressed signal |
| 06/16/2004 | EP1429530A1 Transmission device for a telephone network for masking data within a voice signal |
| 06/16/2004 | EP1429316A1 System and method for multi-referenced correction of spectral voice distortions introduced by a communication network |
| 06/16/2004 | EP1428374A1 Process, arrangement, devices for seizure of a shared telephone line |
| 06/16/2004 | EP1428215A1 Method and apparatus for editing data streams |
| 06/16/2004 | EP1428206A1 Bit error concealment methods for speech coding |
| 06/16/2004 | EP1428202A2 Method and apparatus for coding successive pitch periods in speech signal |
| 06/16/2004 | EP1428179A1 Using multiple watermarks to protect content material |
| 06/16/2004 | EP1175670B1 Using gain-adaptive quantization and non-uniform symbol lengths for audio coding |
| 06/16/2004 | EP1147667B1 Local video and audio network with optical data line |
| 06/16/2004 | EP1142129B1 Variable to variable length entropy encoding |
| 06/16/2004 | EP1112625A4 Method and apparatus for coding an information signal |
| 06/16/2004 | EP0841656B1 Method and apparatus for speech signal encoding |
| 06/16/2004 | CN1505783A Low power digital audio decoding/playing system for computing devices |
| 06/16/2004 | CN1505319A 音频递送系统 Audio delivery system |
| 06/16/2004 | CN1504993A Audio decoding method and apparatus for reconstructing high frequency components with less computation |
| 06/16/2004 | CN1154288C Sub-packet insertion for packet loss compensation in voice over IP networks |
| 06/16/2004 | CN1154283C Coding method and apparatus, and decoding method and apparatus |
| 06/16/2004 | CN1154087C Method of improving sound quality of low bit-rate audio coding systems, coder and decoder |
| 06/16/2004 | CN1154086C CELP transcoding |
| 06/16/2004 | CN1154085C Variable scale audio coding/decoding method and apparatus |
| 06/16/2004 | CN1154084C Audio coding/decoding technology based on pseudo wavelet filtering |
| 06/15/2004 | US6751587 Efficient excitation quantization in noise feedback coding with general noise shaping |
| 06/15/2004 | US6751586 Audio decoding device with soft decision error correction by bit interpolation |
| 06/15/2004 | US6751585 Speech coder for high quality at low bit rates |
| 06/15/2004 | US6751511 Electronic recording device |
| 06/15/2004 | US6751473 Wireless communication terminal having a video image capability |
| 06/15/2004 | US6751320 Method and system for preventing reproduction of professional photographs |