| 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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| 05/01/2001 | CA2194419C Perceptual noise shaping in the time domain via lpc prediction in the frequency domain |
| 05/01/2001 | CA2140678C Coder and decoder for high-quality audio |
| 04/27/2001 | CA2809775A1 Audio signature extraction and correlation |
| 04/27/2001 | CA2310769A1 Audio signature extraction and correlation |
| 04/26/2001 | WO2001030049A1 Received speech processing unit and received speech reproducing unit |
| 04/26/2001 | WO2001029999A1 Methods and systems for robust frame type protection in systems employing variable bit rates |
| 04/26/2001 | WO2001029825A1 Variable bit-rate celp coding of speech with phonetic classification |
| 04/26/2001 | WO2001029691A1 System for providing a digital watermark in an audio signal |
| 04/26/2001 | WO2001015144A8 Voice encoder and voice encoding method |
| 04/26/2001 | CA2382575A1 Variable bit-rate celp coding of speech with phonetic classification |
| 04/25/2001 | EP1094447A2 Vector quantization codebook generation method |
| 04/25/2001 | EP1094446A1 Voice recording with silence compression and comfort noise generation for digital communication apparatus |
| 04/25/2001 | EP1093690A1 Method and device for masking errors |
| 04/25/2001 | CN1292979A Method of embedding compressed digital audio signals in video signal using guard bands |
| 04/25/2001 | CN1292914A 语音编码 Speech coding |
| 04/25/2001 | CN1292913A Speech coding including soft adaptability feature |
| 04/24/2001 | US6223153 Variation in playback speed of a stored audio data signal encoded using a history based encoding technique |
| 04/24/2001 | US6223152 Multiple impulse excitation speech encoder and decoder |
| 04/24/2001 | US6223151 Method and apparatus for pre-processing speech signals prior to coding by transform-based speech coders |
| 04/24/2001 | CA2103986C Radio telephony system using a multisubscriber unit |
| 04/19/2001 | WO2001028204A1 Telephone capable of playing music |
| 04/19/2001 | WO2001028201A1 Method, system and accessory device for integration of cellular telephone and audio playback device |
| 04/18/2001 | EP1093230A1 Voice coder |
| 04/18/2001 | EP1093116A1 Autocorrelation based search loop for CELP speech coder |
| 04/18/2001 | EP1093115A2 Predictive coding of pitch lag in a speech coder |
| 04/18/2001 | EP1093113A2 Method and apparatus for dynamic segmentation of a low bit rate digital voice message |
| 04/18/2001 | EP1023809B1 Frame-based audio coding with gain-control words |
| 04/18/2001 | CN1291766A Digital signal processing equipment and digital signal processing method |
| 04/18/2001 | CN1064773C Method and apparatus for encoding digital signals |
| 04/18/2001 | CN1064771C Device and method for discriminating between stationary and non-stationary signals |
| 04/18/2001 | CN1064770C Equipment and method for concealing distorsion effect in speech decoder |
| 04/18/2001 | CN1064769C Equipment and method for improving audio signal decode in wireless communication system |
| 04/18/2001 | CN1064768C Method and apparatus for transmission error concealment in wireless communication system |
| 04/17/2001 | US6219641 System and method of transmitting speech at low line rates |
| 04/17/2001 | US6219637 Speech coding/decoding using phase spectrum corresponding to a transfer function having at least one pole outside the unit circle |
| 04/17/2001 | US6219636 Audio pitch coding method, apparatus, and program storage device calculating voicing and pitch of subframes of a frame |
| 04/17/2001 | CA2077662C Encoder/decoder for multidimensional sound fields |
| 04/12/2001 | WO2001026416A2 High performance audio transmission channel |
| 04/12/2001 | WO2001026262A2 Method and device for introducing information into a data stream and a method for encoding an audio signal |
| 04/12/2001 | WO2001026110A1 Embedding and detecting watermarks in one-dimensional information signals |
| 04/12/2001 | WO2001026095A1 Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching |
| 04/12/2001 | WO2001026094A1 Voice encoding device and voice encoding method |
| 04/12/2001 | DE19925031A1 Information transfer involves reducing transmission signal to relevant information content using compression code, transmitting information content, processing with decompression code |
| 04/11/2001 | EP1091543A1 Method of using a cellular telephone for playback of audio signals downloaded from the network |
| 04/11/2001 | EP1091542A1 Method, System and accessory device for integration of cellular telephone and audio playback device |
| 04/11/2001 | EP1091534A1 High efficiency transmission channel |
| 04/11/2001 | EP1091495A1 Voice encoding device |
| 04/11/2001 | EP1091348A2 Method and apparatus for non-speech activity reduction of a low bit rate digital voice message |
| 04/11/2001 | EP1090382A1 A noise suppressor having weighted gain smoothing |
| 04/11/2001 | EP0998740A4 Method and apparatus for speech analysis and synthesis using lattice-ladder filters |
| 04/11/2001 | CN1291400A Cellular phone with expansion memory for audio and video storage |
| 04/11/2001 | CN1291377A Audio codec with AGC Controlled by a vocoder |
| 04/11/2001 | CN1291041A Code generating method, detection method and its equipment, water mark embedding device and detector |
| 04/10/2001 | US6216104 Computer-based patient record and message delivery system |
| 04/10/2001 | US6215910 Table-based compression with embedded coding |
| 04/10/2001 | CA2213699C A communication system and method using a speaker dependent time-scaling technique |
| 04/05/2001 | WO2001024416A1 Apparatus and method for de-esser using adaptive filtering algorithms |
| 04/05/2001 | WO2001024166A1 G.723.1 audio encoder |
| 04/05/2001 | WO2001024165A1 Method and apparatus for voice latency reduction in a voice-over-data wireless communication system |
| 04/05/2001 | WO2001024164A1 Voice encoder, voice decoder, and voice encoding and decoding method |
| 04/05/2001 | WO2001024105A1 Classified adaptive error recovery method and apparatus |
| 04/05/2001 | WO2001023993A1 Multiple instance implementation of speech codecs |
| 04/05/2001 | WO2001023981A1 Authentification of digital data works using signatures and watermarks |
| 04/05/2001 | WO2000048171A8 Speech enhancement with gain limitations based on speech activity |
| 04/05/2001 | WO2000033508A9 Telecommunication conferencing system and method |
| 04/04/2001 | EP1089550A2 Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit |
| 04/04/2001 | EP1089258A2 Apparatus for expanding speech bandwidth |
| 04/04/2001 | EP1089257A2 Header data formatting for a vocoder |
| 04/04/2001 | EP1089255A2 Method and apparatus for pitch determination of a low bit rate digital voice message |
| 04/04/2001 | EP1089241A2 Digital data copyright protection system |
| 04/04/2001 | EP1088304A1 A frequency domain interpolative speech codec system |
| 04/04/2001 | EP1088303A1 Method and apparatus for performing packet loss or frame erasure concealment |
| 04/04/2001 | EP1088302A1 Method and apparatus for performing packet loss or frame erasure concealment |
| 04/04/2001 | EP1088301A1 Method and apparatus for performing packet loss or frame erasure concealment |
| 04/04/2001 | EP1088300A1 Method for executing automatic evaluation of transmission quality of audio signals |
| 04/04/2001 | EP1088205A1 Improved lost frame recovery techniques for parametric, lpc-based speech coding systems |
| 04/04/2001 | CN1290454A System for processing and information signal |
| 04/04/2001 | CN1290389A Decoding method, speech coding processing unit and network element |
| 04/04/2001 | CN1290085A Method and system for eliminating errors produced in transmitting channels by arrangement of audio coder data |
| 04/03/2001 | US6212495 Coding method, coder, and decoder processing sample values repeatedly with different predicted values |
| 04/03/2001 | US6212173 Communication system with fast control traffic |
| 03/29/2001 | WO2001022775A2 Subband acoustic feedback cancellation in hearing aids |
| 03/29/2001 | WO2001022676A1 Block joint source-channel coding |
| 03/29/2001 | WO2001022403A1 Lpc-harmonic vocoder with superframe structure |
| 03/29/2001 | WO2001022402A1 Multimode speech encoder |
| 03/29/2001 | WO2001022401A1 Processing circuit for correcting audio signals, receiver, communication system, mobile apparatus and related method |
| 03/29/2001 | WO2001004734A3 Portable information terminal, method of processing audio data, recording medium, and program |
| 03/28/2001 | EP1087380A2 Reproducing apparatus and reproducing method |
| 03/28/2001 | EP1087379A2 Quantization errors correction method in a audio decoder |
| 03/28/2001 | EP1087378A1 Voice/music signal encoder and decoder |
| 03/28/2001 | EP1087377A1 Additional information embedding method and its device, and additional information decoding method and its decoding device |
| 03/28/2001 | EP1086452A1 Method and apparatus for performing packet loss or frame erasure concealment |
| 03/28/2001 | EP1086451A1 Method and apparatus for performing packet loss or frame erasure concealment |
| 03/28/2001 | CN1289500A Telephone with means for enhancing the subjective signal impression in the presence of noise |
| 03/28/2001 | CN1289183A Recording medium for code signal |
| 03/27/2001 | US6209094 Robust watermark method and apparatus for digital signals |
| 03/27/2001 | US6209015 Method of implementing dual-mode audio decorder and filter therefor |
| 03/27/2001 | US6209012 System and method using mode bits to support multiple coding standards |
| 03/27/2001 | US6208962 Signal coding system |
| 03/27/2001 | US6208961 Apparatus for preventing use of erroneous speech encoding parameters for decoding digital speech transmissions |