| 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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| 04/24/2003 | US20030078774 Robust composite quantization with sub-quantizers and inverse sub-quantizers using illegal space |
| 04/24/2003 | US20030078773 Robust quantization with efficient WMSE search of a sign-shape codebook using illegal space |
| 04/24/2003 | US20030078772 Noise reduction method |
| 04/24/2003 | US20030078771 Method for searching codebook |
| 04/24/2003 | US20030078769 Frame erasure concealment for predictive speech coding based on extrapolation of speech waveform |
| 04/24/2003 | US20030078767 Method and system for implementing a low complexity spectrum estimation technique for comfort noise generation |
| 04/24/2003 | US20030076893 Transmitting device for transmitting a digital information signal alternately in encoded form and non-encoded form |
| 04/24/2003 | US20030076751 Information playback apparatus |
| 04/24/2003 | US20030076418 Testing apparatus and encoder |
| 04/24/2003 | US20030076247 Method and system for sampling rate conversion in digital audio applications |
| 04/23/2003 | EP1304809A1 Digital signal encoding apparatus and method, digital signal decoding apparatus and method, and digital signal transmission system |
| 04/23/2003 | EP1304700A2 Information playback apparatus |
| 04/23/2003 | EP1304682A1 Distributed speech recognition system |
| 04/23/2003 | EP1303857A1 Method of converting line spectral frequencies back to linear prediction coefficients |
| 04/23/2003 | EP1303856A1 Method for concealing transmission errors in digital audio data |
| 04/23/2003 | EP1161805A4 Synchronization of voice packet generation to unsolicited grants in a docsis cable modem voice over packet telephone |
| 04/23/2003 | EP1142130B1 Entropy code mode switching for frequency-domain audio coding |
| 04/23/2003 | EP1125235B1 Multi-precision technique for digital audio encoder |
| 04/23/2003 | CN1413347A Method and apparatus for smoothing spliced discontinuous audio streams |
| 04/23/2003 | CN1412742A Speech signal base voice period detection method based on wave form correlation method |
| 04/23/2003 | CN1106715C Method and arrangement for coding and decoding |
| 04/23/2003 | CN1106710C Device and method for quantization vector |
| 04/22/2003 | US6553381 Time-varying randomization for data synchronization and implicit information transmission |
| 04/22/2003 | US6553129 Computer system linked by using information in data objects |
| 04/22/2003 | US6552863 Optical element, its manufacturing method and optical element manufacture metal die |
| 04/17/2003 | WO2003032296A1 Encoding apparatus and method, decoding apparatus and method, and recording medium recording apparatus and method |
| 04/17/2003 | WO2002047081A9 System, method, and device for playing back recorded audio, video or other content from non-volatile memory cards, compact disks or other media |
| 04/17/2003 | WO2002035523A3 System for vector quantization search for noise feedback based coding of speech |
| 04/17/2003 | US20030074197 Method and system for frame erasure concealment for predictive speech coding based on extrapolation of speech waveform |
| 04/17/2003 | US20030074192 Phase excited linear prediction encoder |
| 04/17/2003 | US20030074191 Method and apparatus for a tunable high-resolution spectral estimator |
| 04/16/2003 | EP1302945A1 Recording/reproducing method and recorder/reproducer for recording medium containing copyright management data |
| 04/16/2003 | EP1301923A2 Method and apparatus for removing noise from speech signals |
| 04/16/2003 | EP1301891A2 A speech communication system and method for handling lost frames |
| 04/16/2003 | EP1186104A4 Differential pulse code modulation system |
| 04/16/2003 | CN1411679A System and method for providing interactive audio in multi-channel audio environment |
| 04/16/2003 | CN1411660A Method and device for communicating command |
| 04/16/2003 | CN1411264A Communication method, communication apparatus and communication terminal |
| 04/16/2003 | CN1411171A Information coding/decoding method and apparatus, information recording medium and information transmission method |
| 04/16/2003 | CN1410970A Algebraic code block of selective signal pulse amplitude for quickly speech encoding |
| 04/15/2003 | US6549886 System for lost packet recovery in voice over internet protocol based on time domain interpolation |
| 04/15/2003 | US6549885 Celp type voice encoding device and celp type voice encoding method |
| 04/15/2003 | US6549884 Phase-vocoder pitch-shifting |
| 04/15/2003 | US6549767 Telephony terminal apparatus capable of reproducing sound data |
| 04/15/2003 | US6549669 Predictive audio and video encoding with smooth scene switching capability |
| 04/15/2003 | US6549523 Background noise contrast reduction for handovers involving a change of speech codec |
| 04/15/2003 | US6548749 Electronic musical instrument and tone volume control method |
| 04/15/2003 | CA2150926C Transmission system implementing different coding principles |
| 04/10/2003 | WO2003030374A1 Coding method, apparatus, decoding method, and apparatus |
| 04/10/2003 | WO2003029945A1 Low power digital audio decoding/playing system for computing devices |
| 04/10/2003 | WO2002101718A3 Coding successive pitch periods in speech signal |
| 04/10/2003 | US20030069011 Method and apparatus for evaluating the voice quality of telephone calls |
| 04/10/2003 | US20030068043 Methods for embedding data in digital audio data |
| 04/10/2003 | US20030067922 Communication method, communication device, and communication terminal |
| 04/09/2003 | EP1299996A1 Speech quality estimation for off-line speech recognition |
| 04/09/2003 | EP1299970A1 Speech coding |
| 04/09/2003 | EP1299879A1 Encoding and decoding of a digital signal |
| 04/09/2003 | EP0737387B1 Identification/authentication coding method and apparatus |
| 04/09/2003 | CN1409940A Multichannel audio signal processing device |
| 04/09/2003 | CN1409917A Method, system and accessory device for integration of cellular telephone and audio playback device |
| 04/09/2003 | CN1105421C Data transmission system, transmitter, data recording and reproducing apparatus and corresponding method |
| 04/08/2003 | US6546515 Method of encoding a signal |
| 04/08/2003 | US6546370 Recording medium with audio data from coder using constant bitrate real-time lossless encoding by moving excess data amounts |
| 04/08/2003 | US6546112 Security document with steganographically-encoded authentication data |
| 04/08/2003 | CA2130218C Data compression for speech recognition |
| 04/08/2003 | CA2049786C Digital signal encoder |
| 04/03/2003 | WO2003028010A1 Text-to-speech native coding in a communication system |
| 04/03/2003 | WO2003028009A1 Perceptually weighted speech coder |
| 04/03/2003 | US20030066014 Coding for informed decoders |
| 04/03/2003 | US20030065518 Optical recording medium having losslessly encoded data |
| 04/03/2003 | US20030065512 Communication device and a method for transmitting and receiving of natural speech |
| 04/03/2003 | US20030065508 Speech transcoding method and apparatus |
| 04/03/2003 | US20030065506 Perceptually weighted speech coder |
| 04/02/2003 | EP1298960A2 Digital acoustic reproducing apparatus, acoustic apparatus and accoustic reproducing system |
| 04/02/2003 | EP1298647A1 A communication device and a method for transmitting and receiving of natural speech, comprising a speech recognition module coupled to an encoder |
| 04/02/2003 | EP1298643A1 Frequency interpolating device and frequency interpolating method |
| 04/02/2003 | EP1297684A1 Device for receiving digital radio signals |
| 04/02/2003 | EP1297648A1 Network delay identification method and apparatus |
| 04/02/2003 | EP1297632A2 Enhanced in-band signaling for data communications over digital wireless telecommunications networks |
| 04/02/2003 | EP1105869B1 Audio transmission system having an improved encoder |
| 04/02/2003 | EP0954853B1 A method of encoding a speech signal |
| 04/02/2003 | CN1408146A Parametric coding of audio signals |
| 04/02/2003 | CN1408110A Sinusoidal model based coding of audio signals |
| 04/02/2003 | CN1408109A Enhancing perceptual performance of SBR and related HFR coding methods by adaptive noise-floor addition and noise substitution limiting |
| 04/02/2003 | CN1104710C Method and device for making pleasant noice in speech digital transmitting system |
| 04/02/2003 | CN1104689C Encoding method and apparatus, decoding method and apparatus |
| 04/01/2003 | US6542927 Linking of computers based on steganographically embedded digital data |
| 04/01/2003 | US6542869 Method for automatic analysis of audio including music and speech |
| 04/01/2003 | US6542865 Method and apparatus for subband coding, allocating available frame bits based on changable subband weights |
| 04/01/2003 | US6542864 Speech enhancement with gain limitations based on speech activity |
| 04/01/2003 | US6542863 Fast codebook search method for MPEG audio encoding |
| 04/01/2003 | US6542857 System and method for characterizing synthesizing and/or canceling out acoustic signals from inanimate sound sources |
| 04/01/2003 | US6542620 Signal processing to hide plural-bit information in image, video, and audio data |
| 04/01/2003 | US6542618 Methods for watermark decoding |
| 04/01/2003 | US6542550 Method for processing and apparatus for encoding or decoding audio or video frame data |
| 03/31/2003 | WO2003015080A1 Pitch cycle search range setting device and pitch cycle search device |
| 03/27/2003 | WO2003026260A1 Process, arrangement, devices for seizure of a shared telephone line |
| 03/27/2003 | WO2003026242A1 A digital implementation of multi-channel demodulators |
| 03/27/2003 | WO2003025855A1 Using multiple watermarks to protect content material |
| 03/27/2003 | WO2002054380B1 Injection high frequency noise into pulse excitation for low bit rate celp |