| 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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| 12/19/2002 | US20020191798 Procedure and device for determining a measure of quality of an audio signal |
| 12/19/2002 | DE10137685C1 Speech signal detection method for hearing aid provides evaluation index from correlation between instant amplitude signal and instant frequency signal |
| 12/18/2002 | EP1267330A1 Reducing sparseness in coded speech signals |
| 12/18/2002 | EP1267329A1 Speech coding including soft adaptibility feature |
| 12/18/2002 | EP1267328A2 Method of converting codes between speech coding and decoding systems, and device and program therefor |
| 12/18/2002 | EP1267327A2 Optimization of model parameters in speech coding |
| 12/18/2002 | EP0775389B1 Encoding system and encoding method for encoding a digital signal having at least a first and a second digital signal component |
| 12/18/2002 | CN1386326A Digital signal encoding apparatus and method digital signal decoding apparatus and method, and digital signal transmission system |
| 12/18/2002 | CN1386238A Recording medium, licnse management apapratus, and recording and playback apparatus |
| 12/18/2002 | CN1386221A Controlled distributing of digital information, in particular audio |
| 12/18/2002 | CN1096776C Digital radio data phase shifting apparatus |
| 12/17/2002 | US6496798 Method and apparatus for encoding and decoding frames of voice model parameters into a low bit rate digital voice message |
| 12/17/2002 | US6496797 Apparatus and method of speech coding and decoding using multiple frames |
| 12/17/2002 | US6496796 Voice coding apparatus and voice decoding apparatus |
| 12/17/2002 | US6496794 Method and apparatus for seamless multi-rate speech coding |
| 12/17/2002 | US6496591 Video copy-control with plural embedded signals |
| 12/17/2002 | CA2270081C Encrypting speech coder |
| 12/12/2002 | WO2002099986A1 System and method for reducing data quality degradation due to encoding/decoding |
| 12/12/2002 | WO2002099788A1 Reducing memory requirements of a codebook vector search |
| 12/12/2002 | WO2002099787A1 Fast code-vector searching |
| 12/12/2002 | WO2002099558A2 Digital data distribution system |
| 12/12/2002 | WO2002065449B1 Signal reproducing apparatus and method, signal recording apparatus and method, signal receiver, and information processing method |
| 12/12/2002 | US20020188841 Digital asset management and linking media signals with related data using watermarks |
| 12/12/2002 | US20020186887 Method for monitoring internet dissemination of image, video, and/or audio files |
| 12/12/2002 | US20020186886 Methods for marking images |
| 12/12/2002 | US20020186863 Redundantly embedding auxiliary data in source signals |
| 12/12/2002 | US20020186842 System, method, and device for playing back recorded audio, video or other content from non-volatile memory cards, compact disks, or other media |
| 12/11/2002 | EP1265192A2 Information reproduction apparatus with card-type recording medium |
| 12/11/2002 | EP1264437A2 Data embedding in digital telephone signals |
| 12/11/2002 | EP1264303A1 Speech decoder and a method for decoding speech |
| 12/11/2002 | EP1264300A2 Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process |
| 12/11/2002 | EP1062658B1 A signal processing method to analyse transients of speech signals |
| 12/11/2002 | EP1055225B1 A decoding method, speech coding processing unit and a network element |
| 12/11/2002 | CN1385030A Advertising method using digital file and using telephone receiver for digital motion picture advertisement |
| 12/11/2002 | CN1096148C Signal encoding method and apparatus |
| 12/10/2002 | US6493842 Time-varying randomization for data synchronization and implicit information transmission |
| 12/10/2002 | US6493674 Coded speech decoding system with low computation |
| 12/10/2002 | US6493668 Speech feature extraction system |
| 12/10/2002 | US6493666 System and method for processing data from and for multiple channels |
| 12/10/2002 | US6493665 Speech classification and parameter weighting used in codebook search |
| 12/10/2002 | US6493664 Spectral magnitude modeling and quantization in a frequency domain interpolative speech codec system |
| 12/10/2002 | US6493457 Electronic watermarking in the compressed domain utilizing perceptual coding |
| 12/10/2002 | US6493338 Multichannel in-band signaling for data communications over digital wireless telecommunications networks |
| 12/10/2002 | CA2053064C Dynamic bit allocation subband excited transform coding method and apparatus |
| 12/05/2002 | WO2002098169A1 Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors |
| 12/05/2002 | WO2002098156A1 A method for enabling a subscriber entity to actively communicate in a communication network |
| 12/05/2002 | WO2002097798A1 Method and apparatus for improved voicing determination in speech signals containing high levels of jitter |
| 12/05/2002 | WO2002097791A1 Method for time aligning audio signals using characterizations based on auditory events |
| 12/05/2002 | WO2002097766A1 Language learning system and a digital storage unit |
| 12/05/2002 | WO2002097603A1 Method for analysing a digital audio flow and device for receiving said flow |
| 12/05/2002 | WO2002043048A3 Method and system for comfort noise generation in speech communication |
| 12/05/2002 | US20020184505 Recognizer of audio-content in digital signals |
| 12/05/2002 | US20020184259 Data reproducing/recording apparatus/ method and list updating method |
| 12/05/2002 | US20020184175 Digital signal processing method, learning method, apparatuses for them, and program storage medium |
| 12/05/2002 | US20020184034 Hypersound document |
| 12/05/2002 | US20020184018 Digital signal processing method, learning method,apparatuses for them ,and program storage medium |
| 12/05/2002 | US20020184009 Method and apparatus for improved voicing determination in speech signals containing high levels of jitter |
| 12/05/2002 | US20020184007 Low bit-rate coding of unvoiced segments of speech |
| 12/05/2002 | US20020184006 Voice analyzing and synthesizing apparatus and method, and program |
| 12/05/2002 | US20020184005 Speech coding system |
| 12/05/2002 | US20020181606 Embedding a first digital information signal into a second digital information signal for transmission via a transmission medium |
| 12/05/2002 | US20020181446 Synchronizer for use with improved in-band signaling for data communications over digital wireless telecommunications networks |
| 12/05/2002 | US20020179706 Information reproduction apparatus |
| 12/04/2002 | EP1262956A2 Signal encoding method and apparatus |
| 12/04/2002 | CN1383547A Method of converting line spectral frequencies back to linear prediction coefficients |
| 12/04/2002 | CN1383546A Sinusoidal coding |
| 12/04/2002 | CN1383110A 语言学习系统 Language Learning System |
| 12/03/2002 | US6490554 Speech detecting device and speech detecting method |
| 12/03/2002 | US6490552 Methods and apparatus for silence quality measurement |
| 12/03/2002 | US6490551 Error concealment in digital transmissions |
| 12/03/2002 | US6490109 Data storage device |
| 11/28/2002 | WO2002095954A1 Normalizing device and method, program, record medium on which the program is recorded, and communication terminal |
| 11/28/2002 | WO2002095734A2 Method for controlling the amplification factor of a predictive voice encoder |
| 11/28/2002 | WO2002095733A1 Method for estimating a codec parameter |
| 11/28/2002 | WO2002095732A1 Method for estimating spectral coefficients |
| 11/28/2002 | WO2002095731A1 Voice signal processor |
| 11/28/2002 | WO2002095730A1 Interpretation of features for signal processing and pattern recognition |
| 11/28/2002 | WO2002095568A1 Dictating machine providing voice data with setup information |
| 11/28/2002 | WO2002073601B1 Method and device for determining the quality of a speech signal |
| 11/28/2002 | US20020178012 System and method for compressed domain beat detection in audio bitstreams |
| 11/28/2002 | US20020177995 Method and arrangement for performing a fourier transformation adapted to the transfer function of human sensory organs as well as a noise reduction facility and a speech recognition facility |
| 11/28/2002 | US20020176601 Audio with hidden in-band digital data |
| 11/28/2002 | US20020176575 System, method, and device for playing back recorded audio, video or other content from non-volatile memory cards, compact disks or other media |
| 11/28/2002 | US20020176353 Scalable and perceptually ranked signal coding and decoding |
| 11/28/2002 | US20020176326 Upload activates features of a dictation machine |
| 11/28/2002 | DE10124420C1 Coding method for transmission of speech signals uses analysis-through-synthesis method with adaption of amplification factor for excitation signal generator |
| 11/28/2002 | DE10124402A1 Estimating spectral coefficients in a receiver from set of coefficients involves determining first coefficient using already known history and further coefficient from set of coefficients |
| 11/27/2002 | EP1260968A1 Method and system for recognizing, indexing, and searching acoustic signals |
| 11/27/2002 | EP1259957A1 Closed-loop multimode mixed-domain linear prediction speech coder |
| 11/27/2002 | EP1259956A1 Method of and apparatus for converting an audio signal between data compression formats |
| 11/27/2002 | EP1259955A1 Method and apparatus for tracking the phase of a quasi-periodic signal |
| 11/27/2002 | EP0746924B1 Digital transmission system with an improved decoder in the receiver |
| 11/27/2002 | CN1382291A Device for data reproduction |
| 11/27/2002 | CN1381956A Changable rate vocoder |
| 11/27/2002 | CN1381830A Power supply controller with speech recognition for PC |
| 11/26/2002 | US6487536 Time-axis compression/expansion method and apparatus for multichannel signals |
| 11/26/2002 | US6487535 Multi-channel audio encoder |
| 11/26/2002 | US6487531 Signal injection coupling into the human vocal tract for robust audible and inaudible voice recognition |
| 11/26/2002 | US6487529 Audio processing device, receiver and filtering method for filtering a useful signal and restoring it in the presence of ambient noise |
| 11/26/2002 | US6487528 Method and apparatus for encoding or decoding audio or video frame data |