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Class Information
Number: 704/226
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > For storage or transmission > Noise
Description: Subject matter wherein the coding reduces the effects of undesired signal components.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620544 |
Method and apparatus for detecting speech segments in speech signal processing |
Nov. 17, 2009 |
| 7617098 |
Method of noise reduction based on dynamic aspects of speech |
Nov. 10, 2009 |
| 7613607 |
Audio enhancement in coded domain |
Nov. 3, 2009 |
| 7613608 |
Method and circuit for noise estimation, related filter, terminal and communication network using same, and computer program product therefor |
Nov. 3, 2009 |
| 7613611 |
Method and apparatus for vocal-cord signal recognition |
Nov. 3, 2009 |
| 7610197 |
Method and apparatus for comfort noise generation in speech communication systems |
Oct. 27, 2009 |
| 7606704 |
Quality assessment tool |
Oct. 20, 2009 |
| 7602926 |
Stationary spectral power dependent audio enhancement system |
Oct. 13, 2009 |
| 7599835 |
Digital signal encoding method, decoding method, encoding device, decoding device, digital signal encoding program, and decoding program |
Oct. 6, 2009 |
| 7596496 |
Voice activity detection apparatus and method |
Sep. 29, 2009 |
| 7596495 |
Current noise spectrum estimation method and apparatus with correlation between previous noise and current noise signal |
Sep. 29, 2009 |
| 7596494 |
Method and apparatus for high resolution speech reconstruction |
Sep. 29, 2009 |
| 7593850 |
Methods for collecting media segments in a media signal via comparing segments of the signal to later segments |
Sep. 22, 2009 |
| 7593848 |
Auto-correlators with DC and CW cancellation |
Sep. 22, 2009 |
| 7590531 |
Robust decoder |
Sep. 15, 2009 |
| 7590530 |
Method and apparatus for improved estimation of non-stationary noise for speech enhancement |
Sep. 15, 2009 |
| 7590529 |
Method and apparatus for reducing noise corruption from an alternative sensor signal during multi-sensory speech enhancement |
Sep. 15, 2009 |
| 7590528 |
Method and apparatus for noise suppression |
Sep. 15, 2009 |
| 7587316 |
Noise canceller |
Sep. 8, 2009 |
| 7584097 |
System and method for noisy automatic speech recognition employing joint compensation of additive and convolutive distortions |
Sep. 1, 2009 |
| 7574355 |
Apparatus and method for determining a quantizer step size |
Aug. 11, 2009 |
| 7574006 |
Active noise controller |
Aug. 11, 2009 |
| 7574008 |
Method and apparatus for multi-sensory speech enhancement |
Aug. 11, 2009 |
| 7567548 |
Method to reduce the distortion in a voice transmission over data networks |
Jul. 28, 2009 |
| 7565289 |
Echo avoidance in audio time stretching |
Jul. 21, 2009 |
| 7565288 |
Spatial noise suppression for a microphone array |
Jul. 21, 2009 |
| 7562013 |
Method for recovering target speech based on amplitude distributions of separated signals |
Jul. 14, 2009 |
| 7558729 |
Music detection for enhancing echo cancellation and speech coding |
Jul. 7, 2009 |
| 7548854 |
Architectural sound enhancement with pre-filtered masking sound |
Jun. 16, 2009 |
| 7548852 |
Quality of decoded audio by adding noise |
Jun. 16, 2009 |
| 7546240 |
Coding with improved time resolution for selected segments via adaptive block transformation of a group of samples from a subband decomposition |
Jun. 9, 2009 |
| 7542900 |
Noise reduction using correction vectors based on dynamic aspects of speech and noise normalization |
Jun. 2, 2009 |
| 7539615 |
Audio signal quality enhancement in a digital network |
May. 26, 2009 |
| 7539614 |
System and method for audio signal processing using different gain factors for voiced and unvoiced phonemes |
May. 26, 2009 |
| 7536301 |
System and method for implementing real-time adaptive threshold triggering in acoustic detection systems |
May. 19, 2009 |
| 7533017 |
Method for recovering target speech based on speech segment detection under a stationary noise |
May. 12, 2009 |
| 7526428 |
System and method for noise cancellation with noise ramp tracking |
Apr. 28, 2009 |
| 7519347 |
Method and device for noise detection |
Apr. 14, 2009 |
| 7516067 |
Method and apparatus using harmonic-model-based front end for robust speech recognition |
Apr. 7, 2009 |
| 7516065 |
Apparatus and method for correcting a speech signal for ambient noise in a vehicle |
Apr. 7, 2009 |
| 7499855 |
Delay free noise suppression |
Mar. 3, 2009 |
| 7496506 |
Method and apparatus for one-stage and two-stage noise feedback coding of speech and audio signals |
Feb. 24, 2009 |
| 7493256 |
Method and apparatus for high performance low bit-rate coding of unvoiced speech |
Feb. 17, 2009 |
| 7489789 |
Method for noise reduction in an audio device and hearing aid with means for reducing noise |
Feb. 10, 2009 |
| 7490038 |
Speech recognition optimization tool |
Feb. 10, 2009 |
| 7483831 |
Methods and apparatus for maximizing speech intelligibility in quiet or noisy backgrounds |
Jan. 27, 2009 |
| 7480614 |
Energy feature extraction method for noisy speech recognition |
Jan. 20, 2009 |
| 7478042 |
Speech decoder that detects stationary noise signal regions |
Jan. 13, 2009 |
| 7478040 |
Method for adaptive filtering |
Jan. 13, 2009 |
| 7478041 |
Speech recognition apparatus, speech recognition apparatus and program thereof |
Jan. 13, 2009 |
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