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Patent US7684981 - Prediction of spectral coefficients in waveform coding and decoding - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsTechniques and tools for prediction of spectral coefficients in encoding and decoding are described herein. For certain types and patterns of content, coefficient prediction exploits correlation between adjacent spectral coefficients, making subsequent entropy encoding more efficient. For example, an...http://www.google.com/patents/US7684981?utm_source=gb-gplus-sharePatent US7684981 - Prediction of spectral coefficients in waveform coding and decodingAdvanced Patent SearchPublication numberUS7684981 B2Publication typeGrantApplication numberUS 11/183,204Publication dateMar 23, 2010Filing dateJul 15, 2005Priority dateJul 15, 2005Fee statusPaidAlso published asUS20070016415Publication number11183204, 183204, US 7684981 B2, US 7684981B2, US-B2-7684981, US7684981 B2, US7684981B2InventorsNaveen Thumpudi, Wei-ge Chen, Chao HeOriginal AssigneeMicrosoft CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (126), Non-Patent Citations (42), Referenced by (8), Classifications (9), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetPrediction of spectral coefficients in waveform coding and decodingUS 7684981 B2Abstract Techniques and tools for prediction of spectral coefficients in encoding and decoding are described herein. For certain types and patterns of content, coefficient prediction exploits correlation between adjacent spectral coefficients, making subsequent entropy encoding more efficient. For example, an audio encoder predictively codes quantized spectral coefficients in the quantized domain and entropy encodes results of the predictive coding. Or, for a particular quantized spectral coefficient, an audio decoder entropy decodes a difference value, computes a predictor in the quantized domain, and combines the predictor and the difference value.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4420771Feb 9, 1981Dec 13, 1983Bell Telephone Laboratories, IncorporatedTechnique for encoding multi-level signalsUS4698672Oct 27, 1986Oct 6, 1987Compression Labs, Inc.Coding system for reducing redundancyUS4730348Sep 19, 1986Mar 8, 1988Adaptive Computer TechnologiesAdaptive data compression systemUS4792981Sep 21, 1987Dec 20, 1988Am International, Inc.Manipulation of run-length encoded imagesUS4813056Dec 8, 1987Mar 14, 1989General Electric CompanyModified statistical coding of digital signalsUS4901075Sep 11, 1987Feb 13, 1990U. S. Philips CorporationMethod and apparatus for bit rate reductionUS4968135Oct 10, 1989Nov 6, 1990Digital Equipment CorporationSystem for producing pixel image data from CCITT encoded pixel dataUS5043919Dec 19, 1988Aug 27, 1991International Business Machines CorporationMethod of and system for updating a display unitUS5089818May 9, 1990Feb 18, 1992French State, Represented By The Minister Of Post, Telecommunications And Space (Centre National D'etudes Des TelecommunicationsMethod of transmitting or storing sound signals in digital form through predictive and adaptive coding and installation thereforeUS5109451Jun 28, 1991Apr 28, 1992Sharp Kabushiki KaishaOrthogonal transform coding system for image dataUS5115469 *Jun 7, 1989May 19, 1992Fujitsu LimitedSpeech encoding/decoding apparatus having selected encodersUS5128758Jun 2, 1989Jul 7, 1992North American Philips CorporationMethod and apparatus for digitally processing a high definition television augmentation signalUS5146324Jul 31, 1990Sep 8, 1992Ampex CorporationData compression using a feedforward quantization estimatorUS5179442Nov 26, 1990Jan 12, 1993North American Philips CorporationMethod and apparatus for digitally processing a high definition television augmentation signalUS5227788Mar 2, 1992Jul 13, 1993At&T Bell LaboratoriesMethod and apparatus for two-component signal compressionUS5227878Nov 15, 1991Jul 13, 1993At&T Bell LaboratoriesAdaptive coding and decoding of frames and fields of videoUS5266941Feb 15, 1991Nov 30, 1993Silicon Graphics, Inc.Apparatus and method for controlling storage of display information in a computer systemUS5270832Apr 14, 1992Dec 14, 1993C-Cube MicrosystemsSystem for compression and decompression of video data using discrete cosine transform and coding techniquesUS5376968Mar 11, 1993Dec 27, 1994General Instrument CorporationAdaptive compression of digital video data using different modes such as PCM and DPCMUS5381144Oct 25, 1993Jan 10, 1995Matsushita Electric Industrial Co., Ltd.Versatile escape run-level coder for digital video signal processing apparatusUS5394170Dec 15, 1992Feb 28, 1995Silicon Graphics, Inc.Apparatus and method for controlling storage of display information in a computer systemUS5400075Jan 13, 1993Mar 21, 1995Thomson Consumer Electronics, Inc.Adaptive variable length encoder/decoderUS5408234Apr 30, 1993Apr 18, 1995Apple Computer, Inc.Multi-codebook coding processUS5457495May 25, 1994Oct 10, 1995At&T Ipm Corp.Adaptive video coder with dynamic bit allocationUS5461421Nov 29, 1993Oct 24, 1995Samsung Electronics Co., Ltd.Encoding and decoding method and apparatus thereofUS5467134Dec 22, 1992Nov 14, 1995Microsoft CorporationMethod and system for compressing video dataUS5475789 *Mar 4, 1993Dec 12, 1995Sony CorporationMethod of compressing an audio signal using adaptive bit allocation taking account of temporal maskingUS5481553Feb 28, 1994Jan 2, 1996Sony CorporationMethods and apparatus for preventing rounding errors when transform coefficients representing a motion picture signal are inversely transformedUS5493407Jan 13, 1994Feb 20, 1996Nec CorporationEncoder in facsimile apparatus generates code words with one bit address indicating remaining bits are raw unencoded data when number of pixels in a run length are below a predetermined numberUS5504591Apr 25, 1994Apr 2, 1996Microsoft CorporationSystem and method for compressing graphic imagesUS5508816Oct 7, 1993Apr 16, 1996Nec CorporationSynchronous compression and reconstruction systemUS5533140Nov 28, 1994Jul 2, 1996U.S. Philips CorporationSystem for transmitting and/or storing signals corresponding to textured picturesUS5535305Dec 31, 1992Jul 9, 1996Apple Computer, Inc.Sub-partitioned vector quantization of probability density functionsUS5544286Jan 29, 1993Aug 6, 1996Microsoft CorporationDigital video data compression techniqueUS5559557Sep 28, 1993Sep 24, 1996Sony CorporationMotion video coding with adaptive precision for DC component coefficient quantization and variable length codingUS5568167Sep 23, 1994Oct 22, 1996C-Cube Microsystems, Inc.System for providing antialiased video overlaysUS5574449Feb 24, 1995Nov 12, 1996Intel CorporationSignal processing with hybrid variable-length and entropy encodidngUS5579430Jan 26, 1995Nov 26, 1996Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.Digital encoding processUS5592584 *Nov 4, 1994Jan 7, 1997Lucent Technologies Inc.Method and apparatus for two-component signal compressionUS5627938 *Sep 22, 1994May 6, 1997Lucent Technologies Inc.Rate loop processor for perceptual encoder/decoderUS5654706Dec 18, 1996Aug 5, 1997Samsung Electronics Co., Ltd.System for variable length decoding digital transmission data which has been compressed by selecting a scanning patternUS5661755Oct 20, 1995Aug 26, 1997U. S. Philips CorporationEncoding and decoding of a wideband digital information signalUS5664057 *Apr 3, 1995Sep 2, 1997Picturetel CorporationFixed bit rate speech encoder/decoderUS5714950Feb 23, 1996Feb 3, 1998Samsung Electronics Co., Ltd.System for variable-length-coding and variable-length-decoding digitaldataUS5717821May 31, 1994Feb 10, 1998Sony CorporationMethod, apparatus and recording medium for coding of separated tone and noise characteristic spectral components of an acoustic sibnalUS5732156Mar 1, 1995Mar 24, 1998Fuji Photo Film, Co. Ltd.Picture data compression coding device and method thereofUS5748789Oct 31, 1996May 5, 1998Microsoft CorporationTransparent block skipping in object-based video coding systemsUS5781888 *Jan 16, 1996Jul 14, 1998Lucent Technologies Inc.Perceptual noise shaping in the time domain via LPC prediction in the frequency domainUS5793897Dec 16, 1994Aug 11, 1998Samsung Electronics Co., Ltd.Adaptive variable-length coding and decoding methods for image dataUS5802213 *Oct 18, 1994Sep 1, 1998Intel CorporationEncoding video signals using local quantization levelsUS5819215 *Oct 13, 1995Oct 6, 1998Dobson; KurtMethod and apparatus for wavelet based data compression having adaptive bit rate control for compression of digital audio or other sensory dataUS5825830Aug 17, 1995Oct 20, 1998Kopf; David A.Method and apparatus for the compression of audio, video or other dataUS5825979Dec 21, 1995Oct 20, 1998Sony CorporationDigital audio signal coding and/or deciding methodUS5828426Aug 20, 1996Oct 27, 1998Samsung Electronics Co., Ltd.Apparatus for decoding variable length coded data of both MPEG-1 and MPEG-2 standardsUS5831559Jun 27, 1996Nov 3, 1998Intel CorporationEncoding/decoding video signals using multiple run-val mapping tablesUS5835144Sep 28, 1995Nov 10, 1998Oki Electric Industry Co., Ltd.Methods of coding and decoding moving-picture signals, using self-resynchronizing variable-length codesUS5844508Oct 17, 1996Dec 1, 1998Fujitsu LimitedData coding method, data decoding method, data compression apparatus, and data decompression apparatusUS5850482Apr 17, 1996Dec 15, 1998Mcdonnell Douglas CorporationError resilient method and apparatus for entropy codingUS5883633Apr 15, 1997Mar 16, 1999Microsoft CorporationMethod and system of variable run length image encoding using sub-paletteUS5884269Apr 17, 1995Mar 16, 1999Merging TechnologiesLossless compression/decompression of digital audio dataUS5889891Nov 21, 1995Mar 30, 1999Regents Of The University Of CaliforniaUniversal codebook vector quantization with constrained storageUS5946043Dec 31, 1997Aug 31, 1999Microsoft CorporationVideo coding using adaptive coding of block parameters for coded/uncoded blocksUS5969650Jan 16, 1998Oct 19, 1999Matsushita Electric Industrial Co., Ltd.Variable length coder with a small table sizeUS5974184Oct 24, 1997Oct 26, 1999General Instrument CorporationIntra-macroblock DC and AC coefficient prediction for interlaced digital videoUS5974380 *Dec 16, 1997Oct 26, 1999Digital Theater Systems, Inc.Multi-channel audio decoderUS5982437Oct 15, 1993Nov 9, 1999Sony CorporationCoding method and system, and decoding method and systemUS5983172Nov 29, 1996Nov 9, 1999Hitachi, Ltd.Method for coding/decoding, coding/decoding device, and videoconferencing apparatus using such deviceUS5990960Dec 9, 1998Nov 23, 1999Mitsubishi Denki Kabushiki KaishaImage signal coding systemUS5991451Feb 28, 1996Nov 23, 1999Intel CorporationVariable-length encoding using code swappingUS5995670Jun 4, 1996Nov 30, 1999Microsoft CorporationSimplified chain encodingUS6002439May 27, 1999Dec 14, 1999Mitsubishi Denki Kabushiki KaishaImage signal coding systemUS6026195Apr 28, 1999Feb 15, 2000General Instrument CorporationMotion estimation and compensation of video object planes for interlaced digital videoUS6038536Jan 30, 1998Mar 14, 2000Texas Instruments IncorporatedData compression using bit change statisticsUS6041302 *Nov 10, 1997Mar 21, 2000U.S. Philips CorporationData compression/expansion using a rice encoder/decoderUS6049630Oct 27, 1997Apr 11, 2000America Online, Inc.Data compression using adaptive bit allocation and hybrid lossless entropy encodingUS6054943Mar 25, 1998Apr 25, 2000Lawrence; John CliftonMultilevel digital information compression based on lawrence algorithmUS6078691Jan 23, 1998Jun 20, 2000Oce-Technologies B.V.Method, apparatus, and article of manufacture for performing image processing operations on runlength-encoded bitmapsUS6097759Nov 22, 1999Aug 1, 2000Mitsubishi Denki Kabushiki KaishaImage signal coding systemUS6097880Aug 18, 1997Aug 1, 2000Sony CorporationDigital signal processing method, digital signal processing apparatus, digital signal recording method, digital signal recording apparatus, recording medium, digital signal transmission method and digital signal transmission apparatusUS6100825Dec 31, 1998Aug 8, 2000Microsoft CorporationCluster-based data compression system and methodUS6111914Dec 1, 1997Aug 29, 2000Conexant Systems, Inc.Adaptive entropy coding in adaptive quantization framework for video signal coding systems and processesUS6148109May 28, 1997Nov 14, 2000Matsushita Electric Industrial Co., Ltd.Image predictive coding methodUS6154572Jun 30, 1997Nov 28, 2000Microsoft, Inc.Table based compression with embedded codingUS6195465Jul 3, 1995Feb 27, 2001Ricoh Company, Ltd.Method and apparatus for compression using reversible wavelet transforms and an embedded codestreamUS6205256Jun 30, 1997Mar 20, 2001Microsoft CorporationTable-based compression with embedded codingUS6215910Mar 28, 1996Apr 10, 2001Microsoft CorporationTable-based compression with embedded codingUS6223162 *Dec 14, 1998Apr 24, 2001Microsoft CorporationMulti-level run length coding for frequency-domain audio codingUS6226407Mar 18, 1998May 1, 2001Microsoft CorporationMethod and apparatus for analyzing computer screensUS6233017Jun 30, 1997May 15, 2001Microsoft CorporationMultimedia compression system with adaptive block sizesUS6253165Jun 30, 1998Jun 26, 2001Microsoft CorporationSystem and method for modeling probability distribution functions of transform coefficients of encoded signalUS6259810Apr 15, 1997Jul 10, 2001Microsoft CorporationMethod and system of decoding compressed image dataUS6272175Feb 13, 1997Aug 7, 2001Conexant Systems, Inc.Video signal coding systems and processes using adaptive quantizationUS6292588Feb 25, 2000Sep 18, 2001Matsushita Electric Industrial Company, LimitedImage predictive decoding apparatusUS6300888Dec 14, 1998Oct 9, 2001Microsoft CorporationEntrophy code mode switching for frequency-domain audio codingUS6304928Jul 1, 1998Oct 16, 2001Microsoft CorporationCompressing/decompressing bitmap by performing exclusive- or operation setting differential encoding of first and previous row therewith outputting run-length encoding of rowUS6337881Mar 23, 2000Jan 8, 2002Microsoft CorporationMultimedia compression system with adaptive block sizesUS6341165Jun 3, 1997Jan 22, 2002Fraunhofer-Gesellschaft zur F�rderdung der Angewandten Forschung E.V.Coding and decoding of audio signals by using intensity stereo and prediction processesUS6345123Nov 6, 1997Feb 5, 2002Matsushita Electric Industrial Co., Ltd.Image encoding/decoding method, image encoder/decoder and image encoding/decoding program recording mediumUS6349152Jun 30, 1997Feb 19, 2002Microsoft CorporationTable-based compression with embedded codingUS6360019Jun 30, 1997Mar 19, 2002Microsoft CorporationTable-based compression with embedded codingUS6377930Dec 14, 1998Apr 23, 2002Microsoft CorporationVariable to variable length entropy encodingUS6392705Jul 7, 1997May 21, 2002Microsoft CorporationMultimedia compression system with additive temporal layersUS6404931Dec 14, 1998Jun 11, 2002Microsoft CorporationCode book construction for variable to variable length entropy encodingUS6408029Mar 22, 1999Jun 18, 2002Intel CorporationMethod and apparatus for simplifying real-time data encodingUS6420980Oct 6, 1999Jul 16, 2002Matsushita Electric Industrial Co., Ltd.Lossless compression encoding method and device, and lossless compression decoding method and deviceUS6421738Jul 15, 1997Jul 16, 2002Microsoft CorporationMethod and system for capturing and encoding full-screen video graphicsUS6441755Aug 12, 1999Aug 27, 2002Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.Device and method for entropy encoding of information words and device and method for decoding entropy-encoded information wordsUS6477280Mar 26, 1999Nov 5, 2002Microsoft CorporationLossless adaptive encoding of finite alphabet dataUS6487535 *Nov 4, 1998Nov 26, 2002Digital Theater Systems, Inc.Multi-channel audio encoderUS6493385Oct 23, 1997Dec 10, 2002Mitsubishi Denki Kabushiki KaishaImage encoding method, image encoder, image decoding method, and image decoderUS6542631Sep 18, 1998Apr 1, 2003Seiko Epson CorporationEncoding method of a color image and its encoding device and a decoding method of the color image and its decoding deviceUS6567781 *Mar 3, 2000May 20, 2003Quikcat.Com, Inc.Method and apparatus for compressing audio data using a dynamical system having a multi-state dynamical rule set and associated transform basis functionUS6751587 *Aug 12, 2002Jun 15, 2004Broadcom CorporationEfficient excitation quantization in noise feedback coding with general noise shapingUS6934677 *Dec 14, 2001Aug 23, 2005Microsoft CorporationQuantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bandsUS7013270 *Aug 23, 2004Mar 14, 2006Interdigital Technology CorporationDetermining linear predictive coding filter parameters for encoding a voice signalUS7069209 *Jun 15, 2004Jun 27, 2006Microsoft CorporationTechniques for quantization of spectral data in transcodingUS7107212 *Nov 25, 2002Sep 12, 2006Koninklijke Philips Electronics N.V.Bitstream data reduction coding by applying predictionUS7139703 *Sep 6, 2002Nov 21, 2006Microsoft CorporationMethod of iterative noise estimation in a recursive frameworkUS7165028 *Sep 20, 2002Jan 16, 2007Texas Instruments IncorporatedMethod of speech recognition resistant to convolutive distortion and additive distortionUS7171355 *Nov 27, 2000Jan 30, 2007Broadcom CorporationMethod and apparatus for one-stage and two-stage noise feedback coding of speech and audio signalsUS20030033143 *Aug 13, 2001Feb 13, 2003Hagai AronowitzDecreasing noise sensitivity in speech processing under adverse conditionsUS20030115055 *Sep 20, 2002Jun 19, 2003Yifan GongMethod of speech recognition resistant to convolutive distortion and additive distortionUS20040044521 *Jul 14, 2003Mar 4, 2004Microsoft CorporationUnified lossy and lossless audio compressionUS20040049379 *Aug 15, 2003Mar 11, 2004Microsoft CorporationMulti-channel audio encoding and decodingUS20040184537 *Aug 7, 2003Sep 23, 2004Ralf GeigerMethod and apparatus for scalable encoding and method and apparatus for scalable decodingGB2388502A * Title not available* Cited by examinerNon-Patent CitationsReference1"ISO/IEC 11172-3, Information Technology-Coding of Moving Pictures and Associated Audio for Digital Storage Media at Up to About 1.5 Mbit/s-Part 3: Audio," 154 pp. (1993).2"ISO/IEC 13818-7, Information Technology-Generic Coding of Moving Pictures and Associated Audio Information-Part 7: Advanced Audio Coding (AAC)," 174 pp. (1997).3"ISO/IEC 11172-3, Information Technology�Coding of Moving Pictures and Associated Audio for Digital Storage Media at Up to About 1.5 Mbit/s�Part 3: Audio," 154 pp. (1993).4"ISO/IEC 13818-7, Information Technology�Generic Coding of Moving Pictures and Associated Audio Information�Part 7: Advanced Audio Coding (AAC)," 174 pp. (1997).5Advanced Television Systems Committee, ATSC Standard: Digital Audio Compression (AC-3), Revision A, 140 pp. (1995).6Bell et al., "Text Compression," Prentice Hall, pp. 105-107 (Feb. 1990).7Bosi et al., "ISO/IEC MPEG-2 Advance Audio Coding," J. Audio Eng. Soc., vol. 45, No. 10, pp. 789-812 (1997).8Brandenburg, "ASPEC Coding", AES 10th International Conference, pp. 81-90 (1991).9Chung et al., "A Novel Memory-efficient Huffman Decoding Algorithm and its Implementation," Signal Processing,pp. 207-213 (1997).10Costa et al., "Efficient Run-Length Encoding of Binary Sources with Unknown Statistics", Technical Report No. MSR-TR-2003-95, pp. 1-10, Microsoft Research, Microsoft Corporation (Dec. 2003).11Cui et al., "A novel VLC based on second-run-level coding and dynamic truncation," Proc. SPIE, vol. 6077, pp. 607726-1 to 607726-9 (2006).12Davis, "The AC-3 Multichannel Coder," Dolby Laboratories Inc., Audio Engineering Study, Inc., 6 pp. (Oct. 1993).13De Agostino et al., "Parallel Algorithms for Optimal Compression using Dictionaries with the Prefix Property," in Proc. Data Compression Conference '92, IEEE Computer Society Press, pp. 52-62 (1992).14Gailly, "comp.compression Frequently Asked Questions (part 1/3)," 64 pp., document marked Sep. 5, 1999 [Downloaded from the World Wide Web on Sep. 5, 2007].15Gersho et al., "Vector Quantization and Signal Compression," pp. 259-305 (1992).16Gibson et al., Digital Compression for Multimedia, "Chapter 2: Lossless Source Coding," Morgan Kaufmann Publishers, Inc., pp. 17-61 (1998).17Gibson et al., Digital Compression for Multimedia, "Chapter 7: Frequency Domain Coding," Morgan Kaufmann Publishers, Inc., pp. 227-262 (1998).18Gill et al., "Creating High-Quality Content with Microsoft Windows Media Encoder 7," 4 pp. (2000) [ Downloaded from the World Wide Web on May 1, 2002].19Hui et al., "Matsushita Algorithm for Coding of Moving Picture Information," ISO/IEC-JTC1/SC29/WG11, MPEG91/217, 76 pp. (Nov. 1991).20Ishii et al., "Parallel Variable Length Decoding with Inverse Quantization for Software MPEG-2 Decoders," IEEE Signal Processing Systems, pp. 500-509 (1997).21ISO/IEC 14496-2, "Coding of Audio-Visual Object-Part 2: Visual," Third Edition, pp. 1-727 (Jun. 2004).22ISO/IEC 14496-2, "Coding of Audio-Visual Object�Part 2: Visual," Third Edition, pp. 1-727 (Jun. 2004).23ITU-T Recommendation H.264, "Series H: Audiovisual and Multimedia Systems, Infrastructure of Audiovisual Services-Coding of Moving Video," International Telecommunication Union, pp. 1-262 (May 2003).24ITU-T Recommendation H.264, "Series H: Audiovisual and Multimedia Systems, Infrastructure of Audiovisual Services�Coding of Moving Video," International Telecommunication Union, pp. 1-262 (May 2003).25ITU-T Recommendation T.800, "Series T: Terminals for Telematic Services," International Telecommunication Union, pp. 1-194 (Aug. 2002).26 *J. Herre and J.D. Johnston, "Enhancing the performance of perceptual audio coders by using temporal noise shaping", Preprint 4384, 101st AES Convention, Los Angeles (USA), Nov. 8-11, 1996.27 *J. Herre, "Temporal noise shaping, quantization and coding methods in perceptual audio coding: A tutorial introduction," presented at the AES 17th Conf. High Quality Audio Coding, Sep. 1999.28 *J.-H. Chen and D. Wang, "Transform predictive coding of wideband speech signals," in IEEE Int. Conf. Acoustics, Speech, Signal Processing, pp. 275-278, 1996.29Jeong et al., "Adaptive Huffman Coding of 2-D DCT Coefficients for Image Sequence Compression," Signal Processing: Image Communication, vol. 7, 11 pp. (1995).30 *M. Honda and F. Itakura, "Bit allocation in time and frequency domains for predictive coding of speech," IEEE Trans. Acoust., Speech, Signal Process., vol. 32, No. 3, pp. 465-473, Jun. 1984.31 *Makhoul, J. and Berouti, M. (1979). Adaptive noise spectral shaping and entropy coding in predictive coding of speech.IEEE Trans. Acoust. Speech, Signal Process.,ASSP-27:63-73.32Malvar, "Fast Progressive Image Coding without Wavelets", IEEE Data Compression Conference, Snowbird, Utah, 10 pp. (Mar. 2000).33Najafzadeh-Azghandi, "Perceptual Coding of Narrowband Audio Signals," Thesis, 139 pp. (Apr. 2000).34Nelson, "The Data Compression Book," M&T Books, pp. 123-165 (1992).35Reader, "History of MPEG Video Compression-Ver. 4.0," 99 pp., document marked Dec. 16, 2003.36Reader, "History of MPEG Video Compression�Ver. 4.0," 99 pp., document marked Dec. 16, 2003.37Shamoon et al., "A Rapidly Adaptive Lossless Compression Algorithm for High Fidelity Audio Coding," IEEE Data Compression Conf. 1994, pp. 430-439 (Mar. 1994).38Sullivan et al., "The H.264/AVC Advanced Video Coding Standard: Overview and Introduction to the Fidelity Range Extensions," 21 pp. (Aug. 2004).39Tu et al., "Context-Based Entropy Coding of Block Transform Coefficients for Image Compression," IEEE Transactions on Image Processing, vol. 11, No. 11, pp. 1271-1283 (Nov. 2002).40U.S. Appl. No. 60/341,674, filed Dec. 17, 2001, Lee et al.41U.S. Appl. No. 60/488,710, filed Jul. 18, 2003, Srinivasan et al.42Wien, "Variable Block-Size Transforms for Hybrid Video Coding," Dissertation, 182 pp. (Feb. 2004).* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS8090574 *Oct 19, 2010Jan 3, 2012Microsoft CorporationEntropy encoding and decoding using direct level and run-length/level context-adaptive arithmetic coding/decoding modesUS8392178Jun 5, 2009Mar 5, 2013SkypePitch lag vectors for speech encodingUS8396706May 29, 2009Mar 12, 2013SkypeSpeech codingUS8433563Jun 2, 2009Apr 30, 2013SkypePredictive speech signal codingUS8452606Sep 29, 2009May 28, 2013SkypeSpeech encoding using multiple bit ratesUS8463604May 28, 2009Jun 11, 2013SkypeSpeech encoding utilizing independent manipulation of signal and noise spectrumUS8639504May 30, 2013Jan 28, 2014SkypeSpeech encoding utilizing independent manipulation of signal and noise spectrumCN102246229BApr 3, 2009Mar 27, 2013华为技术有限公司Predicting method and apparatus for frequency domain pulse decoding and decoder* Cited by examinerClassifications U.S. Classification704/230, 704/205, 704/219, 704/500International ClassificationG10L19/00, G10L19/14Cooperative ClassificationG10L19/0017, G10L19/03European ClassificationG10L19/03Legal EventsDateCodeEventDescriptionAug 26, 2013FPAYFee paymentYear of fee payment: 4Feb 8, 2011CCCertificate of correctionAug 10, 2005ASAssignmentOwner name: MICROSOFT CORPORATION, WASHINGTONFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:THUMPUDI, NAVEEN;CHEN, WEI-GE;HE, CHAO;REEL/FRAME:016382/0348Effective date: 20050715Owner name: MICROSOFT CORPORATION,WASHINGTONFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:THUMPUDI, NAVEEN;CHEN, WEI-GE;HE, CHAO;US-ASSIGNMENT DATABASE UPDATED:20100323;REEL/FRAME:16382/348RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google