| 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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| 04/10/2002 | EP1194925A1 Bi-directional pitch enhancement in speech coding systems |
| 04/10/2002 | EP1194924A1 Adaptive tilt compensation for synthesized speech residual |
| 04/10/2002 | EP1194923A1 Methods and device for audio analysis and synthesis |
| 04/10/2002 | EP1194922A1 Speech-processing system |
| 04/10/2002 | EP0873641A4 Communication system and method |
| 04/10/2002 | EP0806032B1 Method and apparatus for detection and bypass of tandem vocoding |
| 04/10/2002 | CN1344479A High efficiency audio frequency transmission channel |
| 04/10/2002 | CN1344072A Transfer system adopting different coding principle |
| 04/10/2002 | CN1344067A Transfer system adopting different coding principle |
| 04/10/2002 | CN1343937A System, method, device and program for distributing data and data reproduction device |
| 04/10/2002 | CN1343916A Digital recording/reproduction device |
| 04/09/2002 | US6370507 Frequency-domain scalable coding without upsampling filters |
| 04/09/2002 | US6370502 Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec |
| 04/09/2002 | US6370501 Method of degrouping a codeword in MPEG-II audio decoding by iterative addition and subtraction |
| 04/09/2002 | US6370500 Method and apparatus for non-speech activity reduction of a low bit rate digital voice message |
| 04/09/2002 | US6370499 Method of encoding digital data |
| 04/09/2002 | US6369722 Coding, decoding and transcoding methods |
| 04/04/2002 | WO2001099295A3 Inband signaling over digital wireless telecommunications networks |
| 04/04/2002 | WO2001086638A3 Method and system for audio compression and distribution |
| 04/04/2002 | WO2001049073A3 Multichannel audio signal processing device |
| 04/04/2002 | US20020040460 Channel error protection implementable across network layers in a communication system |
| 04/04/2002 | US20020040299 Apparatus and method for performing orthogonal transform, apparatus and method for performing inverse orthogonal transform, apparatus and method for performing transform encoding, and apparatus and method for encoding data |
| 04/04/2002 | US20020040295 Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process |
| 04/04/2002 | US20020039425 Method and apparatus for removing noise from electronic signals |
| 04/03/2002 | EP1192621A1 Audio encoding with harmonic components |
| 04/03/2002 | EP1192620A1 Audio encoding and decoding including non harmonic components of the audio signal |
| 04/03/2002 | EP1192619A1 Audio coding and decoding by interpolation |
| 04/03/2002 | EP1192618A1 Audio coding with adaptive liftering |
| 04/03/2002 | CN1082305C Telephone answering machine with recording circuit and reproducing circuit |
| 04/02/2002 | US6366888 Technique for multi-rate coding of a signal containing information |
| 04/02/2002 | US6366881 Voice encoding method |
| 03/28/2002 | WO2002025953A2 Video and audio transcoder |
| 03/28/2002 | WO2002025886A1 Digital signal processing techniques for improving audio clarity and intelligibility |
| 03/28/2002 | WO2002025639A1 Speech coding exploiting a power ratio of different speech signal components |
| 03/28/2002 | WO2002025638A2 Codebook structure and search for speech coding |
| 03/28/2002 | WO2002025634A2 Signal processing system for filtering spectral content of a signal for speech coding |
| 03/28/2002 | WO2002025611A1 Store system |
| 03/28/2002 | US20020038325 Method of determining filter coefficients from line spectral frequencies |
| 03/28/2002 | US20020038216 Compression data recording apparatus, recording method, compression data recording and reproducing apparatus, recording and reproducing method, and recording medium |
| 03/28/2002 | US20020038210 Speech coding apparatus capable of implementing acceptable in-channel transmission of non-speech signals |
| 03/28/2002 | US20020038158 Signal processing apparatus |
| 03/28/2002 | US20020036800 Information distribution system, information distribution device, information receiving device, information distribution method, information distribution program, recording medium recording the information distribution program, information receiving method, information receiving program, and recording medium recording the information receiving program |
| 03/28/2002 | DE3938312C2 Verfahren zum Erzeugen von Quelltondaten A method of generating Quelltondaten |
| 03/27/2002 | EP1190597A1 Voice-to-remaining audio (vra) interactive hearing aid & auxiliary equipment |
| 03/27/2002 | EP1190515A1 Method and system for adaptive voice buffering |
| 03/27/2002 | EP1190510A1 Audience survey system, and systems and methods for compressing and correlating audio signals |
| 03/27/2002 | EP1190416A1 Error correction method with pitch change detection |
| 03/27/2002 | EP1190415A1 Laguerre function for audio coding |
| 03/27/2002 | EP1190414A1 Encoding and decoding with harmonic components and minimum phase |
| 03/27/2002 | EP1016320B1 Method and apparatus for encoding and decoding multiple audio channels at low bit rates |
| 03/27/2002 | CN1342375A Arrangement for improving speech quality, especially for voice over IP calls |
| 03/27/2002 | CN1342309A Low bit-rate coding of unvoiced segments of speech |
| 03/27/2002 | CN1341892A Digital record regenerator |
| 03/27/2002 | CN1081882C Method of facilitating audio source change in digital radio communication system |
| 03/26/2002 | US6363407 Exponential calculation device and decoding device |
| 03/26/2002 | US6363350 Method and apparatus for digital audio generation and coding using a dynamical system |
| 03/26/2002 | US6363341 Encoder for minimizing resulting effect of transmission errors |
| 03/26/2002 | US6363340 Transmission system with improved speech encoder |
| 03/26/2002 | US6363338 Quantization in perceptual audio coders with compensation for synthesis filter noise spreading |
| 03/26/2002 | US6363239 Print having attached audio data storage and method of providing same |
| 03/26/2002 | US6363159 Consumer audio appliance responsive to watermark data |
| 03/21/2002 | WO2002023537A1 System for enhancing perceptual quality of decoded speech |
| 03/21/2002 | WO2002023536A2 Formant emphasis in celp speech coding |
| 03/21/2002 | WO2002023535A1 Multimode speech coder |
| 03/21/2002 | WO2002023534A2 Selection of coding parameters based on spectral content of a speech signal |
| 03/21/2002 | WO2002023533A2 System for improved use of pitch enhancement with subcodebooks |
| 03/21/2002 | WO2002023532A2 System of dynamic pulse position tracks for pulse-like excitation in speech coding |
| 03/21/2002 | WO2002023531A1 System for coding speech information using an adaptive codebook with enhanced variable resolution scheme |
| 03/21/2002 | WO2002023530A2 Quantization of spectral sequences for audio signal coding |
| 03/21/2002 | WO2002023529A1 Multi-channel signal encoding and decoding |
| 03/21/2002 | WO2002023528A1 Multi-channel signal encoding and decoding |
| 03/21/2002 | WO2002023527A1 Multi-channel signal encoding and decoding |
| 03/21/2002 | WO2002023195A2 Method for detecting clostridium botulinum neurotoxin serotypes a, b, e and f in a sample |
| 03/21/2002 | WO2000031720A3 Complex signal activity detection for improved speech/noise classification of an audio signal |
| 03/21/2002 | US20020035680 Device for simultaneously downloading code into plural dsp memories from single master memory |
| 03/21/2002 | US20020035470 Speech coding system with time-domain noise attenuation |
| 03/21/2002 | US20020035468 Audio transmission system having a pitch period estimator for bad frame handling |
| 03/21/2002 | US20020034376 Coding device, coding method, program and recording medium |
| 03/21/2002 | US20020034297 Wireless methods and devices employing steganography |
| 03/21/2002 | US20020034224 Broadcast encoding system and method |
| 03/21/2002 | CA2452023A1 Method for detecting clostridium botulinum neurotoxin serotypes a, b, e and f in a sample |
| 03/20/2002 | EP1189372A2 Audio signal processor comprising a means for embedding an audible watermark in an audio signal, audio player comprising a means for removing the audible watermark and audio distribution system and method using the audio signal processor and the audio player |
| 03/20/2002 | EP1189223A2 Digital recording and reproducing apparatus |
| 03/20/2002 | EP1189208A1 Detection of transmission errors in a speech decoder |
| 03/19/2002 | US6360204 Method and apparatus for implementing rounding in decoding an audio signal |
| 03/19/2002 | US6360200 Process for reducing redundancy during the coding of multichannel signals and device for decoding redundancy-reduced multichannel signals |
| 03/19/2002 | US6360199 Speech coding rate selector and speech coding apparatus |
| 03/19/2002 | US6360019 Table-based compression with embedded coding |
| 03/19/2002 | US6359573 Method and system for embedding electronic watermark information in main information |
| 03/14/2002 | WO2002021526A1 Audio signal processing with adaptive noise-shaping modulation |
| 03/14/2002 | WO2002021525A1 Audio signal compression |
| 03/14/2002 | WO2002021515A1 Transmission error concealment in an audio signal |
| 03/14/2002 | WO2002021514A1 A method and a device for objective speech quality assessment without reference signal |
| 03/14/2002 | WO2002021323A2 Hardware function generator support in a dsp |
| 03/14/2002 | WO2002021091A1 Noise signal analyzer, noise signal synthesizer, noise signal analyzing method, and noise signal synthesizing method |
| 03/14/2002 | WO2001054341A3 A method of scrambling a signal |
| 03/14/2002 | US20020032833 Digital recording and reproducing apparatus |
| 03/14/2002 | US20020032753 Mixing and splitting multiple independent audio data streams in kernel space |
| 03/14/2002 | US20020032747 System, method, device, and program for distributing data, and data reproduction device |
| 03/14/2002 | US20020032712 Exponential calculation device and decoding device |