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Browse by Category: Main > Information Technology
Class Information
Number: 704/227
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > For storage or transmission > Noise > Pretransmission
Description: Subject matter wherein the coding precedes transmission.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8706483 Partial speech reconstruction Apr. 22, 2014
8688438 Generating speech and voice from extracted signal attributes using a speech-locked loop (SLL) Apr. 1, 2014
8676571 Audio signal processing system and audio signal processing method Mar. 18, 2014
8655653 Speech coding by quantizing with random-noise signal Feb. 18, 2014
8645133 Adaptation of voice activity detection parameters based on encoding modes Feb. 4, 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
8620646 System and method for tracking sound pitch across an audio signal using harmonic envelope Dec. 31, 2013
8615393 Noise suppressor for speech recognition Dec. 24, 2013
8612217 Method and system for noise reduction Dec. 17, 2013
8595018 Technique for controlling codec selection along a complex call path Nov. 26, 2013
8588429 Sound device and sound control device Nov. 19, 2013
8577675 Method and device for speech enhancement in the presence of background noise Nov. 5, 2013
8560307 Systems, methods, and apparatus for context suppression using receivers Oct. 15, 2013
8554551 Systems, methods, and apparatus for context replacement by audio level Oct. 8, 2013
8543388 Efficient speech stream conversion Sep. 24, 2013
8526627 Noise reduction device Sep. 3, 2013
8503517 System and method of an in-band modem for data communications over digital wireless communication networks Aug. 6, 2013
8494175 Noise reduction device and noise reduction system Jul. 23, 2013
8478587 Voice analysis device, voice analysis method, voice analysis program, and system integration circuit Jul. 2, 2013
8473286 Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure Jun. 25, 2013
8457955 Voice reproduction with playback time delay and speed based on background noise and speech characteristics Jun. 4, 2013
8452591 Comfort noise information handling for audio transcoding applications May. 28, 2013
8452592 Signal separating apparatus and signal separating method May. 28, 2013
8447595 Echo-related decisions on automatic gain control of uplink speech signal in a communications device May. 21, 2013
8447596 Monaural noise suppression based on computational auditory scene analysis May. 21, 2013
8428940 Metadata-based weighting of geotagged environmental audio for enhanced speech recognition accuracy Apr. 23, 2013
8391373 Concealment of transmission error in a digital audio signal in a hierarchical decoding structure Mar. 5, 2013
8374854 Spatio-temporal speech enhancement technique based on generalized eigenvalue decomposition Feb. 12, 2013
8374860 Method, apparatus, system and software product for adaptation of voice activity detection parameters based oncoding modes Feb. 12, 2013
8370132 Distributed apparatus and method for a perceptual quality measurement service Feb. 5, 2013
8370139 Feature-vector compensating apparatus, feature-vector compensating method, and computer program product Feb. 5, 2013
8363854 Device and method for automatically adjusting gain Jan. 29, 2013
8359198 Pre-processing and speech codec encoding of ring-back audio signals transmitted over a communication network to a subscriber terminal Jan. 22, 2013
8355910 Methods and apparatus for audio watermarking a substantially silent media content presentation Jan. 15, 2013
8352249 Encoding device, decoding device, and method thereof Jan. 8, 2013
8340963 Echo suppressing system, echo suppressing method, recording medium, echo suppressor, sound output device, audio system, navigation system and mobile object Dec. 25, 2012
8326616 Dynamic noise reduction using linear model fitting Dec. 4, 2012
8326617 Speech enhancement with minimum gating Dec. 4, 2012
8315862 Audio signal quality enhancement apparatus and method Nov. 20, 2012
8311817 Systems and methods for enhancing voice quality in mobile device Nov. 13, 2012
8306811 Embedding data in audio and detecting embedded data in audio Nov. 6, 2012
8290770 Method and apparatus for sinusoidal audio coding Oct. 16, 2012
8280069 Noise reduction apparatus Oct. 2, 2012
8280731 Noise variance estimator for speech enhancement Oct. 2, 2012
8271276 Enhancement of multichannel audio Sep. 18, 2012
8265928 Geotagged environmental audio for enhanced speech recognition accuracy Sep. 11, 2012
8219394 Adaptive ambient sound suppression and speech tracking Jul. 10, 2012
8219391 Speech analyzing system with speech codebook Jul. 10, 2012
8204252 System and method for providing close microphone adaptive array processing Jun. 19, 2012

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