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Class Information
Number: 704/205
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > For storage or transmission > Frequency
Description: Subject matter wherein the speech
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620554 |
Multichannel audio extension |
Nov. 17, 2009 |
| 7613264 |
Flexible sampling-rate encoder |
Nov. 3, 2009 |
| 7613604 |
System for bandwidth extension of narrow-band speech |
Nov. 3, 2009 |
| 7613612 |
Voice synthesizer of multi sounds |
Nov. 3, 2009 |
| 7606709 |
Voice converter with extraction and modification of attribute data |
Oct. 20, 2009 |
| 7603270 |
Method of prioritizing transmission of spectral components of audio signals |
Oct. 13, 2009 |
| 7590523 |
Speech post-processing using MDCT coefficients |
Sep. 15, 2009 |
| 7587313 |
Audio coding |
Sep. 8, 2009 |
| 7587312 |
Method and apparatus for pitch modulation and gender identification of a voice signal |
Sep. 8, 2009 |
| 7580832 |
Apparatus and method for robust classification of audio signals, and method for establishing and operating an audio-signal database, as well as computer program |
Aug. 25, 2009 |
| 7577563 |
Enhanced conversion of wideband signals to narrowband signals |
Aug. 18, 2009 |
| 7565283 |
Method and system for controlling potentially harmful signals in a signal arranged to convey speech |
Jul. 21, 2009 |
| 7558389 |
Method and system of generating a speech signal with overlayed random frequency signal |
Jul. 7, 2009 |
| 7551666 |
Wireless communications system and wireless digital receiver for use therein |
Jun. 23, 2009 |
| 7548790 |
Effective deployment of temporal noise shaping (TNS) filters |
Jun. 16, 2009 |
| 7539613 |
Device for recovering missing frequency components |
May. 26, 2009 |
| 7533015 |
Signal enhancement via noise reduction for speech recognition |
May. 12, 2009 |
| 7529660 |
Method and device for frequency-selective pitch enhancement of synthesized speech |
May. 5, 2009 |
| 7526428 |
System and method for noise cancellation with noise ramp tracking |
Apr. 28, 2009 |
| 7523039 |
Method for encoding digital audio using advanced psychoacoustic model and apparatus thereof |
Apr. 21, 2009 |
| 7519538 |
Audio signal encoding or decoding |
Apr. 14, 2009 |
| 7519530 |
Audio signal processing |
Apr. 14, 2009 |
| 7516064 |
Adaptive hybrid transform for signal analysis and synthesis |
Apr. 7, 2009 |
| 7505902 |
Discrimination of components of audio signals based on multiscale spectro-temporal modulations |
Mar. 17, 2009 |
| 7499851 |
System and method for deploying filters for processing signals |
Mar. 3, 2009 |
| 7496482 |
Signal separation method, signal separation device and recording medium |
Feb. 24, 2009 |
| 7496517 |
Method and device for generating a scalable data stream and method and device for decoding a scalable data stream with provision for a bit saving bank function |
Feb. 24, 2009 |
| 7493254 |
Pitch determination method and apparatus using spectral analysis |
Feb. 17, 2009 |
| 7489789 |
Method for noise reduction in an audio device and hearing aid with means for reducing noise |
Feb. 10, 2009 |
| 7478045 |
Method and device for characterizing a signal and method and device for producing an indexed signal |
Jan. 13, 2009 |
| 7475011 |
Greedy algorithm for identifying values for vocal tract resonance vectors |
Jan. 6, 2009 |
| 7469206 |
Methods for improving high frequency reconstruction |
Dec. 23, 2008 |
| 7467082 |
Method and apparatus for transmitting wideband speech signals |
Dec. 16, 2008 |
| 7464028 |
System and method for frequency domain audio speed up or slow down, while maintaining pitch |
Dec. 9, 2008 |
| 7460994 |
Method and apparatus for producing a fingerprint, and method and apparatus for identifying an audio signal |
Dec. 2, 2008 |
| 7457756 |
Method of generating time-frequency signal representation preserving phase information |
Nov. 25, 2008 |
| 7457749 |
Noise-robust feature extraction using multi-layer principal component analysis |
Nov. 25, 2008 |
| 7451079 |
Emotion recognition method and device |
Nov. 11, 2008 |
| 7444280 |
Emphasis of short-duration transient speech features |
Oct. 28, 2008 |
| 7444289 |
Audio decoding method and apparatus for reconstructing high frequency components with less computation |
Oct. 28, 2008 |
| 7440892 |
Method, device and program for extracting and recognizing voice |
Oct. 21, 2008 |
| 7426463 |
System and method for linear prediction |
Sep. 16, 2008 |
| 7421376 |
Comparison of data signals using characteristic electronic thumbprints |
Sep. 2, 2008 |
| 7415392 |
System for separating multiple sound sources from monophonic input with non-negative matrix factor deconvolution |
Aug. 19, 2008 |
| 7412377 |
Voice model for speech processing based on ordered average ranks of spectral features |
Aug. 12, 2008 |
| 7409339 |
Methods and systems for sample rate conversion |
Aug. 5, 2008 |
| 7406419 |
Quality assessment tool |
Jul. 29, 2008 |
| 7395210 |
Progressive to lossless embedded audio coder (PLEAC) with multiple factorization reversible transform |
Jul. 1, 2008 |
| 7392176 |
Encoding device, decoding device and audio data distribution system |
Jun. 24, 2008 |
| 7392177 |
Method and system for reducing a voice signal noise |
Jun. 24, 2008 |
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