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Browse by Category: Main > Information Technology
Class Information
Number: 704/230
Name: Data processing: speech signal processing, linguistics, language translation, and audio compression/decompression > Speech signal processing > For storage or transmission > Quantization
Description: Subject matter under 201 wherein coded information is mapped into digital words described by binary symbols.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8712765 Parameter decoding apparatus and parameter decoding method Apr. 29, 2014
8712764 Device and method for quantizing and inverse quantizing LPC filters in a super-frame Apr. 29, 2014
8706481 Multi-path trellis coded quantization method and multi-path coded quantizer using the same Apr. 22, 2014
8706488 Methods and apparatus for formant-based voice synthesis Apr. 22, 2014
8706506 Waveform compressing apparatus, waveform decompressing apparatus, and method of producing compressed data Apr. 22, 2014
8706510 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using a detection of a group of previously-decoded spectra Apr. 22, 2014
8694324 System and method of providing an automated data-collection in spoken dialog systems Apr. 8, 2014
8687829 Apparatus and method for multi-channel parameter transformation Apr. 1, 2014
8676571 Audio signal processing system and audio signal processing method Mar. 18, 2014
8665945 Encoding method, decoding method, encoding device, decoding device, program, and recording medium Mar. 4, 2014
8666752 Apparatus and method for encoding and decoding multi-channel signal Mar. 4, 2014
8660840 Method and apparatus for predictively quantizing voiced speech Feb. 25, 2014
8655652 Apparatus and method for encoding an information signal Feb. 18, 2014
8655653 Speech coding by quantizing with random-noise signal Feb. 18, 2014
8655669 Audio encoder, audio decoder, method for encoding an audio information, method for decoding an audio information and computer program using an iterative interval size reduction Feb. 18, 2014
8645145 Audio encoder, audio decoder, method for encoding and audio information, method for decoding an audio information and computer program using a hash table describing both significant state valu Feb. 4, 2014
8639503 Speech compression method and apparatus Jan. 28, 2014
8639504 Speech encoding utilizing independent manipulation of signal and noise spectrum Jan. 28, 2014
8630849 Coefficient splitting structure for vector quantization bit allocation and dequantization Jan. 14, 2014
8625705 Data modulation and demodulation method, spectrum management method, apparatus and system Jan. 7, 2014
8626504 Extracting features of audio signal content to provide reliable identification of the signals Jan. 7, 2014
8620673 Audio decoding method and audio decoder Dec. 31, 2013
8620651 Bit error concealment methods for speech coding Dec. 31, 2013
8620646 System and method for tracking sound pitch across an audio signal using harmonic envelope Dec. 31, 2013
8620645 Non-causal postfilter Dec. 31, 2013
8615391 Method and apparatus to extract important spectral component from audio signal and low bit-rate audio signal coding and/or decoding method and apparatus using the same Dec. 24, 2013
8612220 Quantization after linear transformation combining the audio signals of a sound scene, and related coder Dec. 17, 2013
8612238 Apparatus and method for encoding/decoding signal Dec. 17, 2013
8600757 System and method of dynamically modifying a spoken dialog system to reduce hardware requirements Dec. 3, 2013
8600764 Determining an initial common scale factor for audio encoding based upon spectral differences between frames Dec. 3, 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
8595003 Encoder quantization architecture for advanced audio coding Nov. 26, 2013
8589151 Vocoder and associated method that transcodes between mixed excitation linear prediction (MELP) vocoders with different speech frame rates Nov. 19, 2013
8589154 Method and apparatus for encoding audio data Nov. 19, 2013
8589166 Speech content based packet loss concealment Nov. 19, 2013
8571856 Limitation of distortion introduced by a post-processing step during digital signal decoding Oct. 29, 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
8560328 Encoding device, decoding device, and method thereof Oct. 15, 2013
8554569 Quality improvement techniques in an audio encoder Oct. 8, 2013
8554568 Apparatus and method of processing an audio signal, utilizing unique offsets associated with each coded-coefficients Oct. 8, 2013
8554549 Encoding device and method including encoding of error transform coefficients Oct. 8, 2013
8554548 Speech decoding apparatus and speech decoding method including high band emphasis processing Oct. 8, 2013
8543388 Efficient speech stream conversion Sep. 24, 2013
8543389 Coding/decoding of digital audio signals Sep. 24, 2013
8543392 Encoding device, decoding device, and method thereof for specifying a band of a great error Sep. 24, 2013
8538765 Parameter decoding apparatus and parameter decoding method Sep. 17, 2013
8532982 Method and apparatus to encode and decode an audio/speech signal Sep. 10, 2013
8521522 Audio coding/decoding method and apparatus using excess quantization information Aug. 27, 2013
8510105 Compression and decompression of data vectors Aug. 13, 2013
8510119 Apparatus and method of processing an audio signal, utilizing unique offsets associated with coded-coefficients Aug. 13, 2013

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