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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 |
| 7430255 |
Impulse noise suppression device |
Sep. 30, 2008 |
| 7428490 |
Method for spectral subtraction in speech enhancement |
Sep. 23, 2008 |
| 7426465 |
Speech signal decoding method and apparatus using decoded information smoothed to produce reconstructed speech signal to enhanced quality |
Sep. 16, 2008 |
| 7424424 |
Communication system noise cancellation power signal calculation techniques |
Sep. 9, 2008 |
| 7421392 |
Diagnosis device and diagnosis method |
Sep. 2, 2008 |
| 7418380 |
Digital audio decoder having error concealment using a dynamic recovery delay and frame repeating and also having fast audio muting capabilities |
Aug. 26, 2008 |
| 7415117 |
System and method for beamforming using a microphone array |
Aug. 19, 2008 |
| 7415118 |
System and method for distributed gain control |
Aug. 19, 2008 |
| 7412380 |
Ambience extraction and modification for enhancement and upmix of audio signals |
Aug. 12, 2008 |
| 7409338 |
Softbit speech decoder and related method for performing speech loss concealment |
Aug. 5, 2008 |
| 7406411 |
Bit error concealment methods for speech coding |
Jul. 29, 2008 |
| 7392177 |
Method and system for reducing a voice signal noise |
Jun. 24, 2008 |
| 7392180 |
System and method of coding sound signals using sound enhancement |
Jun. 24, 2008 |
| 7392181 |
System and method for nonlinear signal enhancement that bypasses a noisy phase of a signal |
Jun. 24, 2008 |
| 7386327 |
Apparatus and method for controlling noise in a mobile communication terminal |
Jun. 10, 2008 |
| 7383179 |
Method of cascading noise reduction algorithms to avoid speech distortion |
Jun. 3, 2008 |
| 7383177 |
Method for speech coding, method for speech decoding and their apparatuses |
Jun. 3, 2008 |
| 7379865 |
System and methods for concealing errors in data transmission |
May. 27, 2008 |
| 7376558 |
Noise reduction for automatic speech recognition |
May. 20, 2008 |
| 7373293 |
Quantization noise shaping method and apparatus |
May. 13, 2008 |
| 7373296 |
Method and apparatus for classifying a spectro-temporal interval of an input audio signal, and a coder including such an apparatus |
May. 13, 2008 |
| 7369990 |
Reducing acoustic noise in wireless and landline based telephony |
May. 6, 2008 |
| 7366658 |
Noise pre-processor for enhanced variable rate speech codec |
Apr. 29, 2008 |
| 7363220 |
Method for speech coding, method for speech decoding and their apparatuses |
Apr. 22, 2008 |
| 7363221 |
Method of noise reduction using instantaneous signal-to-noise ratio as the principal quantity for optimal estimation |
Apr. 22, 2008 |
| 7359856 |
Speech detection system in an audio signal in noisy surrounding |
Apr. 15, 2008 |
| 7353170 |
Noise-adaptive decoding |
Apr. 1, 2008 |
| 7349841 |
Noise suppression device including subband-based signal-to-noise ratio |
Mar. 25, 2008 |
| 7346504 |
Multi-sensory speech enhancement using a clean speech prior |
Mar. 18, 2008 |
| 7343283 |
Method and apparatus for coding a noise-suppressed audio signal |
Mar. 11, 2008 |
| 7343284 |
Method and system for speech processing for enhancement and detection |
Mar. 11, 2008 |
| 7340397 |
Speech recognition optimization tool |
Mar. 4, 2008 |
| 7337113 |
Speech recognition apparatus and method |
Feb. 26, 2008 |
| 7333619 |
Fast wavelet estimation of weak bio-signals using novel algorithms for generating multiple additional data frames |
Feb. 19, 2008 |
| 7330738 |
Apparatus and method for canceling residual echo in a mobile terminal of a mobile communication system |
Feb. 12, 2008 |
| 7327985 |
Mapping objective voice quality metrics to a MOS domain for field measurements |
Feb. 5, 2008 |
| 7315816 |
Recovering method of target speech based on split spectra using sound sources' locational information |
Jan. 1, 2008 |
| 7315814 |
Method and apparatus providing adaptive multi-rate speech coding |
Jan. 1, 2008 |
| 7313519 |
Transient performance of low bit rate audio coding systems by reducing pre-noise |
Dec. 25, 2007 |
| 7313518 |
Noise reduction method and device using two pass filtering |
Dec. 25, 2007 |
| 7302065 |
Noise suppressor |
Nov. 27, 2007 |
| 7302064 |
Fast estimation of weak bio-signals using novel algorithms for generating multiple additional data frames |
Nov. 27, 2007 |
| 7295982 |
System and method for automatic verification of the understandability of speech |
Nov. 13, 2007 |
| 7295972 |
Method and apparatus for blind source separation using two sensors |
Nov. 13, 2007 |
| 7289955 |
Method of determining uncertainty associated with acoustic distortion-based noise reduction |
Oct. 30, 2007 |
| 7286983 |
System and method for processing low signal-to-noise ratio signals |
Oct. 23, 2007 |
| 7283956 |
Noise suppression |
Oct. 16, 2007 |
| 7280961 |
Pattern recognizing device and method, and providing medium |
Oct. 9, 2007 |
| 7277550 |
Enhancing audio signals by nonlinear spectral operations |
Oct. 2, 2007 |
| 7272556 |
Scalable and embedded codec for speech and audio signals |
Sep. 18, 2007 |
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