| 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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| 03/27/2001 | US6208959 Mapping of digital data symbols onto one or more formant frequencies for transmission over a coded voice channel |
| 03/27/2001 | US6208957 Voice coding and decoding system |
| 03/27/2001 | US6208276 Method and apparatus for sample rate pre- and post-processing to achieve maximal coding gain for transform-based audio encoding and decoding |
| 03/27/2001 | CA2303711C Method for noise weighting filtering |
| 03/27/2001 | CA2225985C Spectrum feature parameter extracting system based on frequency weight estimation function |
| 03/27/2001 | CA2186433C Speech coding apparatus having amplitude information set to correspond with position information |
| 03/22/2001 | WO2001020596A1 Method and apparatus to determine and use audience affinity and aptitude |
| 03/22/2001 | WO2001020595A1 Voice encoder/decoder |
| 03/21/2001 | EP1085504A2 Vector quantization codebook generation method |
| 03/21/2001 | EP1085503A2 Addressing of multipulse excitation table for a speech coder |
| 03/21/2001 | EP1085502A2 Audio subband coder with differentially encoded scale factors |
| 03/21/2001 | EP1085394A2 Digital data access control |
| 03/21/2001 | EP1008097A4 Method and apparatus for watermarking video images |
| 03/21/2001 | CN1288557A Decoding method and systme comprising adaptive postfilter |
| 03/21/2001 | CN1288234A Recording/reproducing device and recording/reproducing method |
| 03/20/2001 | US6205423 Method for coding speech containing noise-like speech periods and/or having background noise |
| 03/20/2001 | US6205421 Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus |
| 03/20/2001 | US6205256 Table-based compression with embedded coding |
| 03/20/2001 | US6205253 Method and apparatus for transmitting and utilizing analog encoded information |
| 03/20/2001 | US6205223 Input data format autodetection systems and methods |
| 03/20/2001 | US6205130 Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters |
| 03/15/2001 | WO2001019083A1 Advertising method using digital file and using telephone receiver for digital motion picture advertisement |
| 03/15/2001 | WO2001019072A1 Digital computer systems |
| 03/15/2001 | WO2001019071A1 Encoding of digital information |
| 03/15/2001 | WO2001018990A1 Personal information system, especially a personal guide system, for wirelessly transmitting voice information |
| 03/15/2001 | DE10009082A1 Waveform reproducing apparatus has waveform reproducing unit that generates output waveform data which is temporally compressed or expanded version of original waveform data |
| 03/15/2001 | CA2383954A1 Digital computer systems |
| 03/15/2001 | CA2383953A1 Encoding of digital information |
| 03/14/2001 | EP1083674A2 Digital signal encoding device, its decoding device, and its recording medium |
| 03/14/2001 | EP1083656A2 Switched signal processing circuit |
| 03/14/2001 | EP1083548A2 Method for gain control of a CELP speech decoder |
| 03/14/2001 | EP1083547A1 Sound source vector generator and voice encoder/decoder |
| 03/14/2001 | EP1083546A2 Speech coding method using linear prediction and algebraic code excitation |
| 03/14/2001 | CN1287658A CELP voice encoder |
| 03/14/2001 | CN1287347A Voice coding apparatus and voice decoding apparatus |
| 03/13/2001 | US6202109 Method for transmitting a digital audio signal |
| 03/13/2001 | US6202048 Phonemic unit dictionary based on shifted portions of source codebook vectors, for text-to-speech synthesis |
| 03/13/2001 | US6202045 Speech coding with variable model order linear prediction |
| 03/13/2001 | US6201175 Waveform reproduction apparatus |
| 03/08/2001 | WO2001016941A1 Transmission system with improved encoder and decoder |
| 03/08/2001 | WO2001016933A1 Device for data reproduction |
| 03/08/2001 | WO2001016671A1 Digital data copyright protection system |
| 03/08/2001 | WO2000074037A3 Noise coding in a variable rate vocoder |
| 03/08/2001 | WO2000060746A3 Matrixing for losseless encoding and decoding of multichannels audio signals |
| 03/08/2001 | DE19941816A1 Einrichtung zum drahtlosen Übertragen von Sprachinformationen Means for wireless transmission of voice information |
| 03/08/2001 | CA2348769A1 Digital data copyright protection system |
| 03/07/2001 | EP1081684A2 Method for editing a subband encoded audio signal |
| 03/07/2001 | EP1080583A1 Method and apparatus for decoding an audio signal |
| 03/07/2001 | EP1080579A2 Scalable audio coder and decoder |
| 03/07/2001 | EP1080548A1 Combined analog/digital data transmission system |
| 03/07/2001 | EP1080545A1 Digital hidden data transport (dhdt) |
| 03/07/2001 | EP1080542A2 System and method for masking quantization noise of audio signals |
| 03/07/2001 | EP1080464A1 Method and device for voice encoding |
| 03/07/2001 | EP1080462A2 System and method for entropy encoding quantized transform coefficients of a signal |
| 03/07/2001 | CN1062963C Encoder/decoder for producing high-quality audio signals |
| 03/06/2001 | US6199040 System and method for communicating a perceptually encoded speech spectrum signal |
| 03/06/2001 | US6199039 Synthesis subband filter in MPEG-II audio decoding |
| 03/06/2001 | US6199038 Signal encoding method using first band units as encoding units and second band units for setting an initial value of quantization precision |
| 03/06/2001 | US6199037 Joint quantization of speech subframe voicing metrics and fundamental frequencies |
| 03/06/2001 | US6199035 Pitch-lag estimation in speech coding |
| 03/06/2001 | US6198940 Mobile radiophone apparatus |
| 03/06/2001 | US6198702 Information providing and collecting apparatus and recording medium |
| 03/06/2001 | US6198414 Dual rate transmission scheme and apparatus using the same |
| 03/06/2001 | CA2193577C Coding of a speech or music signal with quantization of harmonics components specifically and then residue components |
| 03/01/2001 | WO2001015358A2 Method and apparatus for transmission and reception of compressed audio frames with prioritized messages for digital audio broadcasting |
| 03/01/2001 | WO2001015144A1 Voice encoder and voice encoding method |
| 03/01/2001 | WO2001015143A1 Method for coding voice signals and audio signals using a human auditory model |
| 03/01/2001 | WO2001015142A1 Audio player |
| 03/01/2001 | DE19941098A1 Application of speech encoder parameters for speech recognition overcomes problem that spectral parameter probability distribution is insufficient to distinguish between phonetic classes |
| 03/01/2001 | DE19938095A1 Verfahren und Vorrichtung zum Einbringen von Informationen in ein Audiosignal und Verfahren und Vorrichtung zum Ermitteln von in einem Audiosignal eingebrachten Informationen Method and apparatus for introducing information into an audio signal and method and device for determining the introduced information in an audio signal |
| 03/01/2001 | DE10040809A1 Video or music playback device with an interface for insertion of a memory card that enables copyrighted or not copyrighted material to be played on the device, but that will not work with an incorrect memory card |
| 03/01/2001 | DE10040808A1 Terminal with memory cards for recoding data determines if inserted card maintains copyright and records compressed signal accordingly |
| 03/01/2001 | DE10040404A1 Data recording/playback device e.g. for foreign language teaching, has operating device used for entering pause information used for inserting pauses of defined duration in recorded information during playback |
| 03/01/2001 | CA2383408A1 Method and apparatus for transmission and reception of compressed audio frames with prioritized messages for digital audio broadcasting |
| 02/28/2001 | EP1079535A2 Encoding apparatus, encoding method, decoding apparatus, decoding method, recording apparatus, recording method, reproducing apparatus, reproducing method, and record medium |
| 02/28/2001 | EP1079372A1 Recording device, recording method, reproducing device and reproducing method |
| 02/28/2001 | EP1079268A1 A print having attached audio data storage and method of providing same |
| 02/28/2001 | EP1078522A1 Synchronizing, switching and editing mpeg files |
| 02/28/2001 | CN1285945A System and method for encoding voice while suppressing acoustic background noise |
| 02/28/2001 | CN1285704A Electronic converter, timer having same and bidirection communication method |
| 02/28/2001 | CN1285673A Reproducing equipment and method |
| 02/28/2001 | CN1285658A Coding and decoding method and device, recording and reproducing method and device, recording medium |
| 02/28/2001 | CN1285593A 终端设备 Terminal Equipment |
| 02/28/2001 | CN1285564A Terminal device |
| 02/27/2001 | US6195633 System and method for efficiently implementing a masking function in a psycho-acoustic modeler |
| 02/27/2001 | US6195632 Extracting formant-based source-filter data for coding and synthesis employing cost function and inverse filtering |
| 02/27/2001 | US6195436 Multi-station audio distribution apparatus |
| 02/27/2001 | CA2214585C A method and apparatus for speech encoding, speech decoding, and speech post processing |
| 02/22/2001 | WO2001013552A1 Method and device for inserting information into an audio signal, and method and device for detecting information inserted into an audio signal |
| 02/22/2001 | WO2001013375A1 Transmission of a digital information signal having m bit pcm samples |
| 02/22/2001 | WO2001013358A1 Memory card |
| 02/22/2001 | DE19939387A1 Audio signal coding method for speech or music signals |
| 02/21/2001 | EP1076965A2 Delayed packet concealment method and apparatus |
| 02/21/2001 | EP1076950A1 System and method for rate adaptation of a multirate vocoder |
| 02/21/2001 | EP1076895A1 A system and method to improve the quality of coded speech coexisting with background noise |
| 02/21/2001 | EP1076894A1 Speech encoding |
| 02/21/2001 | CN1285118A Data transmission over a coded voice channel |
| 02/21/2001 | CN1284791A Encoder |
| 02/21/2001 | CN1062365C Method of transmitting and receiving coded speech |
| 02/20/2001 | US6192336 Method and system for searching for an optimal codevector |