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Class Information
Number: 704/228
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > For storage or transmission > Noise > Post-transmission
Description: Subject matter wherein decoding after transmission minimizes the effects of noise










Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8706483 Partial speech reconstruction Apr. 22, 2014
8688441 Method and apparatus to facilitate provision and use of an energy value to determine a spectral envelope shape for out-of-signal bandwidth content Apr. 1, 2014
8676571 Audio signal processing system and audio signal processing method Mar. 18, 2014
8666736 Noise-reduction processing of speech signals Mar. 4, 2014
8660849 Prioritizing selection criteria by automated assistant Feb. 25, 2014
8645129 Integrated speech intelligibility enhancement system and acoustic echo canceller Feb. 4, 2014
8635064 Information processing apparatus and operation method thereof Jan. 21, 2014
8626502 Improving speech intelligibility utilizing an articulation index Jan. 7, 2014
8626503 Audio encoding and decoding Jan. 7, 2014
8620645 Non-causal postfilter Dec. 31, 2013
8619965 On-hold processing for telephonic systems Dec. 31, 2013
8615390 Low-delay transform coding using weighting windows Dec. 24, 2013
8615393 Noise suppressor for speech recognition Dec. 24, 2013
8615394 Restoration of noise-reduced speech Dec. 24, 2013
8612218 Method for error concealment in the transmission of speech data with errors Dec. 17, 2013
8606566 Speech enhancement through partial speech reconstruction Dec. 10, 2013
8600740 Systems, methods and apparatus for context descriptor transmission Dec. 3, 2013
8589166 Speech content based packet loss concealment Nov. 19, 2013
8589151 Vocoder and associated method that transcodes between mixed excitation linear prediction (MELP) vocoders with different speech frame rates Nov. 19, 2013
8588429 Sound device and sound control device Nov. 19, 2013
8583428 Sound source separation using spatial filtering and regularization phases Nov. 12, 2013
8577672 Audible errors detection and prevention for speech decoding, audible errors concealing Nov. 5, 2013
8577675 Method and device for speech enhancement in the presence of background noise Nov. 5, 2013
8577677 Sound source separation method and system using beamforming technique Nov. 5, 2013
8571852 Postfilter for layered codecs Oct. 29, 2013
8571855 Audio enhancement system Oct. 29, 2013
8571856 Limitation of distortion introduced by a post-processing step during digital signal decoding Oct. 29, 2013
8566083 Method for decoding an audio signal that has a base layer and an enhancement layer Oct. 22, 2013
8554548 Speech decoding apparatus and speech decoding method including high band emphasis processing Oct. 8, 2013
8554557 Robust downlink speech and noise detector Oct. 8, 2013
8538749 Systems, methods, apparatus, and computer program products for enhanced intelligibility Sep. 17, 2013
8526627 Noise reduction device Sep. 3, 2013
8494175 Noise reduction device and noise reduction system Jul. 23, 2013
8473287 Method for jointly optimizing noise reduction and voice quality in a mono or multi-microphone system Jun. 25, 2013
8473286 Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure Jun. 25, 2013
8468019 Adaptive noise modeling speech recognition system Jun. 18, 2013
8463603 Spectral envelope coding of energy attack signal Jun. 11, 2013
8457952 Packet loss concealment for a sub-band predictive coder based on extrapolation of excitation waveform Jun. 4, 2013
8457954 Sound quality control apparatus and sound quality control method Jun. 4, 2013
8457956 Reconstructing an audio signal by spectral component regeneration and noise blending Jun. 4, 2013
8452592 Signal separating apparatus and signal separating method May. 28, 2013
8447622 Decoding method and device May. 21, 2013
8447596 Monaural noise suppression based on computational auditory scene analysis May. 21, 2013
8438022 System that detects and identifies periodic interference May. 7, 2013
8433582 Method and apparatus for estimating high-band energy in a bandwidth extension system Apr. 30, 2013
8428953 Audio decoding device, audio decoding method, program, and integrated circuit Apr. 23, 2013
8423358 Method and apparatus for performing packet loss or frame erasure concealment Apr. 16, 2013
8417518 Voice recognition system, method, and program Apr. 9, 2013
8417519 Synthesis of lost blocks of a digital audio signal, with pitch period correction Apr. 9, 2013
8417520 Attenuation of overvoicing, in particular for the generation of an excitation at a decoder when data is missing Apr. 9, 2013

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