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Browse by Category: Main > Information Technology
Class Information
Number: 704/223
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > For storage or transmission > Pattern matching vocoders > Excitation patterns
Description: Subject matter wherein the encoding models speech










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8712766 Method and system for coding an information signal using closed loop adaptive bit allocation Apr. 29, 2014
8712771 Automated difference recognition between speaking sounds and music Apr. 29, 2014
8712765 Parameter decoding apparatus and parameter decoding method Apr. 29, 2014
8706497 Speech signal restoration device and speech signal restoration method Apr. 22, 2014
8682656 Techniques to generate a precoding matrix for a wireless system Mar. 25, 2014
8655651 Method, computer, computer program and computer program product for speech quality estimation Feb. 18, 2014
8639294 System and method for performing automatic gain control in mobile phone environments Jan. 28, 2014
8635065 Apparatus and method for automatic extraction of important events in audio signals Jan. 21, 2014
8630849 Coefficient splitting structure for vector quantization bit allocation and dequantization Jan. 14, 2014
8620645 Non-causal postfilter Dec. 31, 2013
8612215 Method and apparatus to extract important frequency component of audio signal and method and apparatus to encode and/or decode audio signal using the same Dec. 17, 2013
8612216 Method and arrangements for audio signal encoding Dec. 17, 2013
8612532 System and method for optimizing response handling time and customer satisfaction scores Dec. 17, 2013
8600037 Audio quality and double talk preservation in echo control for voice communications Dec. 3, 2013
8600739 Coding method, encoder, and computer readable medium that uses one of multiple codebooks based on a type of input signal Dec. 3, 2013
8595002 Half-rate vocoder Nov. 26, 2013
8595000 Method and apparatus to search fixed codebook and method and apparatus to encode/decode a speech signal using the method and apparatus to search fixed codebook Nov. 26, 2013
8589166 Speech content based packet loss concealment Nov. 19, 2013
8571226 Automatic polarity adaptation for ambient noise cancellation Oct. 29, 2013
8571852 Postfilter for layered codecs Oct. 29, 2013
8566106 Method and device for fast algebraic codebook search in speech and audio coding Oct. 22, 2013
8560306 Method and apparatus to search fixed codebook using tracks of a trellis structure with each track being a union of tracks of an algebraic codebook Oct. 15, 2013
8554548 Speech decoding apparatus and speech decoding method including high band emphasis processing Oct. 8, 2013
8554549 Encoding device and method including encoding of error transform coefficients Oct. 8, 2013
8542766 Time alignment algorithm for transmitters with EER/ET amplifiers and others Sep. 24, 2013
8538765 Parameter decoding apparatus and parameter decoding method Sep. 17, 2013
8529473 Neural translator Sep. 10, 2013
8532982 Method and apparatus to encode and decode an audio/speech signal Sep. 10, 2013
8515767 Technique for encoding/decoding of codebook indices for quantized MDCT spectrum in scalable speech and audio codecs Aug. 20, 2013
8504365 System and method for detecting synthetic speaker verification Aug. 6, 2013
8494849 Method and apparatus for transmitting speech data to a remote device in a distributed speech recognition system Jul. 23, 2013
8494863 Audio encoder and decoder with long term prediction Jul. 23, 2013
8489403 Apparatuses, methods and systems for sparse sinusoidal audio processing and transmission Jul. 16, 2013
8489395 Method and apparatus for generating lattice vector quantizer codebook Jul. 16, 2013
8489393 Speech intelligibility Jul. 16, 2013
8484036 Systems, methods, and apparatus for wideband speech coding Jul. 9, 2013
8478587 Voice analysis device, voice analysis method, voice analysis program, and system integration circuit Jul. 2, 2013
8473284 Apparatus and method of encoding/decoding voice for selecting quantization/dequantization using characteristics of synthesized voice Jun. 25, 2013
8468015 Parameter decoding device, parameter encoding device, and parameter decoding method Jun. 18, 2013
8457962 Remote audio surveillance for detection and analysis of wildlife sounds Jun. 4, 2013
8452590 Fixed codebook searching apparatus and fixed codebook searching method May. 28, 2013
8447597 Audio encoding device, audio decoding device, audio encoding method, and audio decoding method May. 21, 2013
8438019 Classification of audio signals May. 7, 2013
8433563 Predictive speech signal coding Apr. 30, 2013
8428937 Beamforming codebook generation system and associated methods Apr. 23, 2013
8417517 Beamforming codebook generation system and associated methods Apr. 9, 2013
8391212 System and method for frequency domain audio post-processing based on perceptual masking Mar. 5, 2013
8391373 Concealment of transmission error in a digital audio signal in a hierarchical decoding structure Mar. 5, 2013
8392182 Speech coding Mar. 5, 2013
8380496 Method and system for pitch contour quantization in audio coding Feb. 19, 2013

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