| 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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| 01/02/2007 | US7158539 Error resilient windows media audio coding |
| 01/02/2007 | US7158487 Multimedia terminal for telephony allowing multipoint connections |
| 12/28/2006 | WO2006137425A1 Audio encoding apparatus, audio decoding apparatus and audio encoding information transmitting apparatus |
| 12/28/2006 | WO2006136901A2 System and method for adaptive transmission of comfort noise parameters during discontinuous speech transmission |
| 12/28/2006 | WO2006136900A1 Method and apparatus for non-intrusive single-ended voice quality assessment in voip |
| 12/28/2006 | WO2006136089A1 A method and system for implementing two-way interworking operation of circuit domain and packet domain |
| 12/28/2006 | WO2006074034A3 System and method for implementing real-time adaptive threshold triggering in acoustic detection systems |
| 12/28/2006 | US20060293885 System and method for adaptive transmission of comfort noise parameters during discontinuous speech transmission |
| 12/28/2006 | US20060293884 Apparatus and method for determining a quantizer step size |
| 12/28/2006 | US20060293883 Speech speed converting device and speech speed converting method |
| 12/28/2006 | US20060293882 System and method for adaptive enhancement of speech signals |
| 12/28/2006 | US20060293773 Process for adjusting the sound volume of a digital sound recording |
| 12/28/2006 | US20060288851 Receiving apparatus, sending apparatus and transmission system |
| 12/27/2006 | EP1737138A2 Audio signal processing apparatus |
| 12/27/2006 | EP1736966A2 Method for generating audio information |
| 12/27/2006 | EP1736965A1 Hierarchy encoding apparatus and hierarchy encoding method |
| 12/27/2006 | EP1736857A2 Communication apparatus and frame display method |
| 12/27/2006 | EP1735779A1 Method, device, encoder apparatus, decoder apparatus and audio system |
| 12/27/2006 | EP1735778A1 Stereo coding and decoding methods and apparatuses thereof |
| 12/27/2006 | EP1735777A1 Multi-channel encoder |
| 12/27/2006 | EP1735776A1 Coding of audio signals |
| 12/27/2006 | EP1735775A1 Method for representing multi-channel audio signals |
| 12/27/2006 | EP1735774A2 Multi-channel encoder |
| 12/27/2006 | EP1673764A4 Method for encoding a digital signal into a scalable bitstream; method for decoding a scalable bitstream. |
| 12/27/2006 | EP1647009B1 Device and method for processing a signal |
| 12/27/2006 | EP1514261B1 Audio coding system using spectral hole filling |
| 12/27/2006 | EP1194924B1 Adaptive tilt compensation for synthesized speech residual |
| 12/27/2006 | CN1886783A Audio coding |
| 12/27/2006 | CN1885724A Method and apparatus for generating bitstream of audio signal and audio encoding/decoding method and apparatus thereof |
| 12/27/2006 | CN1292401C Apparatus and method for enhanced conversion of wideband signals to narrow band signals |
| 12/27/2006 | CN1292341C Letter-sound converting device and portable terminal unit therewith |
| 12/26/2006 | US7155387 Noise spectrum subtraction method and system |
| 12/26/2006 | US7155386 Adaptive correlation window for open-loop pitch |
| 12/26/2006 | US7155384 Speech coding and decoding apparatus and method with number of bits determination |
| 12/26/2006 | US7155383 Quantization matrices for jointly coded channels of audio |
| 12/26/2006 | US7155000 Process, arrangement, devices for seizure of a shared telephone line |
| 12/26/2006 | US7154881 Method and apparatus for telecommunications using internet protocol |
| 12/21/2006 | WO2006135499A2 Method and apparatus to facilitate vocoder erasure processing |
| 12/21/2006 | WO2006134992A1 Post filter, decoder, and post filtering method |
| 12/21/2006 | WO2006134366A1 Restoring corrupted audio signals |
| 12/21/2006 | WO2006050112A8 Audio spatial environment engine |
| 12/21/2006 | US20060288277 Communication apparatus and display method |
| 12/21/2006 | US20060287853 Encoding device and decoding device |
| 12/21/2006 | US20060287851 Electronic device and method of keypad function guidance for remote controller used therefor |
| 12/20/2006 | EP1734527A1 Audio reproducing apparatus, audio reproducing method, and program |
| 12/20/2006 | EP1734512A2 Sound encoder and sound decoder |
| 12/20/2006 | EP1734511A2 Entropy coding by adapting coding between level and run-length/level modes |
| 12/20/2006 | EP1733331A2 Codec-assisted capacity enhancement of wireless voip |
| 12/20/2006 | CN1882983A Method and system for pitch contour quantization in audio coding |
| 12/20/2006 | CN1882910A Stream under-run/over-run recovery |
| 12/20/2006 | CN1882180A Method for calling user terminal of IP multimedia subsystem |
| 12/20/2006 | CN1881953A Method and apparatus for transmitting message |
| 12/20/2006 | CN1879581A In-vitro voice processing unit for electronic cochlear duct |
| 12/20/2006 | CN1291375C Acoustic signal encoding method and apparatus, acoustic signal decoding method and apparatus |
| 12/20/2006 | CN1291374C Method and apparatus for improved spectral parameter substitution for frame error concealment in speech decoder |
| 12/20/2006 | CN1291307C Information processing apparatus and method |
| 12/19/2006 | US7152163 Content-recognition facilitator |
| 12/19/2006 | US7152161 Watermarking |
| 12/19/2006 | US7152032 Voice enhancement device by separate vocal tract emphasis and source emphasis |
| 12/19/2006 | US7151802 High frequency content recovering method and device for over-sampled synthesized wideband signal |
| 12/19/2006 | US7151768 In-band signaling for data communications over digital wireless telecommunications networks |
| 12/14/2006 | WO2006132857A2 Apparatus and method for encoding audio signals with decoding instructions |
| 12/14/2006 | WO2006091151B1 Optimized fidelity and reduced signaling in multi-channel audio encoding |
| 12/14/2006 | WO2006091150B1 Improved filter smoothing in multi-channel audio encoding and/or decoding |
| 12/14/2006 | US20060282489 Hardware function generator support in a DSP |
| 12/14/2006 | US20060282263 Systems, methods, and apparatus for highband time warping |
| 12/14/2006 | US20060282262 Systems, methods, and apparatus for gain factor attenuation |
| 12/14/2006 | US20060282259 Method and apparatus to facilitate vocoder erasure processing |
| 12/14/2006 | US20060280271 Sampling rate conversion apparatus, encoding apparatus decoding apparatus and methods thereof |
| 12/14/2006 | DE19727938B4 Verfahren und Vorrichtung zum Codieren von Signalen Method and apparatus for encoding signals |
| 12/13/2006 | EP1730843A2 Method and apparatus for classifying importance of encoded frames in a digital communications system |
| 12/13/2006 | EP1730727A2 Adaptive quantiser |
| 12/13/2006 | EP1730726A1 Methods for improved performance of prediction based multi-channel reconstruction |
| 12/13/2006 | EP1730725A1 Efficient coding of digital media spectral data using wide-sense perceptual similarity |
| 12/13/2006 | EP1568010B1 Coding an audio signal |
| 12/13/2006 | EP1332493B1 Improved spectral parameter substitution for the frame error concealment in a speech decoder |
| 12/13/2006 | EP0967594B1 Sound encoder and sound decoder |
| 12/13/2006 | CN1879351A Adapting playout buffer based on audio burst length |
| 12/13/2006 | CN1878386A Cell recognition method for OFDMA cellular system |
| 12/13/2006 | CN1878290A Mobile communication terminal with stereo sound reverberation function |
| 12/13/2006 | CN1878085A State detection method based on main and backup Ethernet interface |
| 12/13/2006 | CN1878001A Apparatus and method of encoding audio data and apparatus and method of decoding encoded audio data |
| 12/13/2006 | CN1877698A Excitation vector generator, speech coder and speech decoder |
| 12/13/2006 | CN1290290C Method for computerized voice data hidden |
| 12/13/2006 | CN1290078C Method and device for coding and/or devoding audio frequency data using bandwidth expanding technology |
| 12/13/2006 | CN1290077C Method and apparatus for phase spectrum subsamples drawn |
| 12/12/2006 | US7149685 Audio signal processing for speech communication |
| 12/12/2006 | US7149683 Method and device for robust predictive vector quantization of linear prediction parameters in variable bit rate speech coding |
| 12/12/2006 | US7149682 Voice converter with extraction and modification of attribute data |
| 12/12/2006 | US7149592 Linking internet documents with compressed audio files |
| 12/12/2006 | US7149313 Audio signal processing |
| 12/12/2006 | US7149159 Method and apparatus for editing data streams |
| 12/12/2006 | US7148499 Device for interacting with an interface surface |
| 12/07/2006 | WO2006130229A1 Sub-band voice codec with multi-stage codebooks and redundant coding |
| 12/07/2006 | WO2006129615A1 Scalable encoding device, and scalable encoding method |
| 12/07/2006 | WO2006129293A1 Homomorphic encryption for secure watermarking |
| 12/07/2006 | WO2006129215A2 Direct stream digital audio with minimal storage requirement |
| 12/07/2006 | WO2006128769A2 Method and apparatus for watermarking an audio or video signal with watermark data using a spread spectrum |
| 12/07/2006 | WO2006084003A3 Method for discontinuous transmission and accurate reproduction of background noise information |
| 12/07/2006 | US20060277042 Systems, methods, and apparatus for anti-sparseness filtering |