DE60325310D1 - Quantisierung und inverse Quantisierung für Tonsignale - Google Patents

Quantisierung und inverse Quantisierung für Tonsignale

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Publication number
DE60325310D1
DE60325310D1 DE60325310T DE60325310T DE60325310D1 DE 60325310 D1 DE60325310 D1 DE 60325310D1 DE 60325310 T DE60325310 T DE 60325310T DE 60325310 T DE60325310 T DE 60325310T DE 60325310 D1 DE60325310 D1 DE 60325310D1
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DE
Germany
Prior art keywords
encoder
quantization
audio
inverse
quantization matrices
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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DE60325310T
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English (en)
Inventor
Naveen Thumpudi
Wei-Ge Chen
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Microsoft Corp
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Microsoft Corp
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Publication date
Priority claimed from US10/642,551 external-priority patent/US7299190B2/en
Application filed by Microsoft Corp filed Critical Microsoft Corp
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Publication of DE60325310D1 publication Critical patent/DE60325310D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
DE60325310T 2002-09-04 2003-09-04 Quantisierung und inverse Quantisierung für Tonsignale Expired - Lifetime DE60325310D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40851702P 2002-09-04 2002-09-04
US10/642,551 US7299190B2 (en) 2002-09-04 2003-08-15 Quantization and inverse quantization for audio

Publications (1)

Publication Number Publication Date
DE60325310D1 true DE60325310D1 (de) 2009-01-29

Family

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Family Applications (2)

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DE20321886U Expired - Lifetime DE20321886U1 (de) 2002-09-04 2003-09-04 Inverse Quantisierung für Audio
DE60325310T Expired - Lifetime DE60325310D1 (de) 2002-09-04 2003-09-04 Quantisierung und inverse Quantisierung für Tonsignale

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE20321886U Expired - Lifetime DE20321886U1 (de) 2002-09-04 2003-09-04 Inverse Quantisierung für Audio

Country Status (6)

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US (2) US8069052B2 (de)
EP (3) EP1400955B1 (de)
JP (2) JP4676140B2 (de)
AT (1) ATE418136T1 (de)
DE (2) DE20321886U1 (de)
ES (1) ES2316679T3 (de)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006003993A1 (ja) 2004-07-02 2006-01-12 Nippon Telegraph And Telephone Corporation 多チャネル信号符号化方法、その復号化方法、これらの装置、プログラム及びその記録媒体
CN1977309B (zh) * 2004-08-19 2010-11-10 日本电信电话株式会社 多信道信号编码方法、解码方法、用于该方法的装置和程序、以及其上存储程序的记录介质
US7787631B2 (en) * 2004-11-30 2010-08-31 Agere Systems Inc. Parametric coding of spatial audio with cues based on transmitted channels
US7983922B2 (en) * 2005-04-15 2011-07-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing
WO2006132857A2 (en) * 2005-06-03 2006-12-14 Dolby Laboratories Licensing Corporation Apparatus and method for encoding audio signals with decoding instructions
CN102013256B (zh) * 2005-07-14 2013-12-18 皇家飞利浦电子股份有限公司 用于生成多个输出音频通道的方法及设备
US8626503B2 (en) 2005-07-14 2014-01-07 Erik Gosuinus Petrus Schuijers Audio encoding and decoding
US7706905B2 (en) * 2005-07-29 2010-04-27 Lg Electronics Inc. Method for processing audio signal
KR20080049735A (ko) * 2005-08-30 2008-06-04 엘지전자 주식회사 오디오 신호의 디코딩 방법 및 장치
US8577483B2 (en) 2005-08-30 2013-11-05 Lg Electronics, Inc. Method for decoding an audio signal
DE102006055737A1 (de) * 2006-11-25 2008-05-29 Deutsche Telekom Ag Verfahren zur skalierbaren Codierung von Stereo-Signalen
KR101016224B1 (ko) 2006-12-12 2011-02-25 프라운호퍼-게젤샤프트 추르 푀르데룽 데어 안제반텐 포르슝 에 파우 인코더, 디코더 및 시간 영역 데이터 스트림을 나타내는 데이터 세그먼트를 인코딩하고 디코딩하는 방법
US8612237B2 (en) * 2007-04-04 2013-12-17 Apple Inc. Method and apparatus for determining audio spatial quality
US8457958B2 (en) * 2007-11-09 2013-06-04 Microsoft Corporation Audio transcoder using encoder-generated side information to transcode to target bit-rate
JP4929200B2 (ja) * 2008-02-13 2012-05-09 パイオニア株式会社 受信装置、音声再生方法、音声再生プログラム及びその記録媒体
EP2395504B1 (de) * 2009-02-13 2013-09-18 Huawei Technologies Co., Ltd. Stereokodierungsverfahren und -vorrichtung
JP5533502B2 (ja) * 2010-09-28 2014-06-25 富士通株式会社 オーディオ符号化装置、オーディオ符号化方法及びオーディオ符号化用コンピュータプログラム
US8620166B2 (en) * 2011-01-07 2013-12-31 Raytheon Bbn Technologies Corp. Holevo capacity achieving joint detection receiver
KR101854469B1 (ko) * 2011-11-30 2018-05-04 삼성전자주식회사 오디오 컨텐츠의 비트레이트 판단장치 및 방법
US9070362B2 (en) 2011-12-30 2015-06-30 Nyquest Corporation Limited Audio quantization coding and decoding device and method thereof
TWI453733B (zh) * 2011-12-30 2014-09-21 Nyquest Corp Ltd 音訊量化編解碼裝置及其方法
US9336791B2 (en) 2013-01-24 2016-05-10 Google Inc. Rearrangement and rate allocation for compressing multichannel audio
JP6179122B2 (ja) * 2013-02-20 2017-08-16 富士通株式会社 オーディオ符号化装置、オーディオ符号化方法、オーディオ符号化プログラム
EP3014609B1 (de) 2013-06-27 2017-09-27 Dolby Laboratories Licensing Corporation Bitstromsyntax zur räumlichen sprachcodierung
FR3008533A1 (fr) * 2013-07-12 2015-01-16 Orange Facteur d'echelle optimise pour l'extension de bande de frequence dans un decodeur de signaux audiofrequences
TWI579831B (zh) 2013-09-12 2017-04-21 杜比國際公司 用於參數量化的方法、用於量化的參數之解量化方法及其電腦可讀取的媒體、音頻編碼器、音頻解碼器及音頻系統
US9794712B2 (en) 2014-04-25 2017-10-17 Dolby Laboratories Licensing Corporation Matrix decomposition for rendering adaptive audio using high definition audio codecs
EP2963949A1 (de) * 2014-07-02 2016-01-06 Thomson Licensing Verfahren und Vorrichtung zur Dekodierung einer komprimierten HOA-Darstellung sowie Verfahren und Vorrichtung zur Kodierung einer komprimierten HOA-Darstellung
US9961475B2 (en) 2015-10-08 2018-05-01 Qualcomm Incorporated Conversion from object-based audio to HOA
US9961467B2 (en) 2015-10-08 2018-05-01 Qualcomm Incorporated Conversion from channel-based audio to HOA
US10249312B2 (en) * 2015-10-08 2019-04-02 Qualcomm Incorporated Quantization of spatial vectors
CN109450505B (zh) * 2016-05-13 2019-11-15 华为技术有限公司 一种信道信息发送方法、数据发送方法和设备
WO2018044125A1 (ko) * 2016-09-01 2018-03-08 엘지전자(주) 레이어드 기븐스 변환을 이용하여 변환을 수행하는 방법 및 장치
US10553224B2 (en) 2017-10-03 2020-02-04 Dolby Laboratories Licensing Corporation Method and system for inter-channel coding
GB2576769A (en) * 2018-08-31 2020-03-04 Nokia Technologies Oy Spatial parameter signalling
BR112022025109A2 (pt) * 2020-06-11 2022-12-27 Dolby Laboratories Licensing Corp Quantização e codificação por entropia de parâmetros para um codec de áudio de baixa latência

Family Cites Families (106)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB206877A (en) 1922-05-17 1923-11-19 Charles Kingston Welch Improvements in or relating to pneumatic tyres and wheels for various vehicles
US1691801A (en) 1926-06-24 1928-11-13 George W Fothergill Multiplane bevel square
US1769401A (en) 1928-04-23 1930-07-01 William W Tancre Fruit clipper
JPS5921039B2 (ja) * 1981-11-04 1984-05-17 日本電信電話株式会社 適応予測符号化方式
CA1253255A (en) 1983-05-16 1989-04-25 Nec Corporation System for simultaneously coding and decoding a plurality of signals
GB8421498D0 (en) 1984-08-24 1984-09-26 British Telecomm Frequency domain speech coding
US4953196A (en) * 1987-05-13 1990-08-28 Ricoh Company, Ltd. Image transmission system
US4922537A (en) 1987-06-02 1990-05-01 Frederiksen & Shu Laboratories, Inc. Method and apparatus employing audio frequency offset extraction and floating-point conversion for digitally encoding and decoding high-fidelity audio signals
NL8901032A (nl) 1988-11-10 1990-06-01 Philips Nv Coder om extra informatie op te nemen in een digitaal audiosignaal met een tevoren bepaald formaat, een decoder om deze extra informatie uit dit digitale signaal af te leiden, een inrichting voor het opnemen van een digitaal signaal op een registratiedrager, voorzien van de coder, en een registratiedrager verkregen met deze inrichting.
US5752225A (en) 1989-01-27 1998-05-12 Dolby Laboratories Licensing Corporation Method and apparatus for split-band encoding and split-band decoding of audio information using adaptive bit allocation to adjacent subbands
US5222189A (en) 1989-01-27 1993-06-22 Dolby Laboratories Licensing Corporation Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio
US5479562A (en) 1989-01-27 1995-12-26 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding audio information
CA2140678C (en) 1989-01-27 2001-05-01 Louis Dunn Fielder Coder and decoder for high-quality audio
US5142656A (en) 1989-01-27 1992-08-25 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
DE59008047D1 (de) 1989-03-06 1995-02-02 Bosch Gmbh Robert Verfahren zur Datenreduktion bei digitalen Tonsignalen und zur genäherten Rückgewinnung der digitalen Tonsignale.
DE69029120T2 (de) * 1989-04-25 1997-04-30 Toshiba Kawasaki Kk Stimmenkodierer
US5115240A (en) 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
JP2921879B2 (ja) * 1989-09-29 1999-07-19 株式会社東芝 画像データ処理装置
US5185800A (en) 1989-10-13 1993-02-09 Centre National D'etudes Des Telecommunications Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion
JP2560873B2 (ja) * 1990-02-28 1996-12-04 日本ビクター株式会社 直交変換符号化復号化方法
JP2861238B2 (ja) 1990-04-20 1999-02-24 ソニー株式会社 ディジタル信号符号化方法
US5388181A (en) * 1990-05-29 1995-02-07 Anderson; David J. Digital audio compression system
JP3033156B2 (ja) * 1990-08-24 2000-04-17 ソニー株式会社 ディジタル信号符号化装置
US5274740A (en) 1991-01-08 1993-12-28 Dolby Laboratories Licensing Corporation Decoder for variable number of channel presentation of multidimensional sound fields
US5559900A (en) 1991-03-12 1996-09-24 Lucent Technologies Inc. Compression of signals for perceptual quality by selecting frequency bands having relatively high energy
JP3141450B2 (ja) 1991-09-30 2001-03-05 ソニー株式会社 オーディオ信号処理方法
US5369724A (en) 1992-01-17 1994-11-29 Massachusetts Institute Of Technology Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients
EP0559348A3 (de) * 1992-03-02 1993-11-03 AT&T Corp. Rateurregelschleifenprozessor für einen wahrnehmungsgebundenen Koder/Dekoder
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
JP2693893B2 (ja) * 1992-03-30 1997-12-24 松下電器産業株式会社 ステレオ音声符号化方法
JP3343962B2 (ja) * 1992-11-11 2002-11-11 ソニー株式会社 高能率符号化方法及び装置
ES2165370T3 (es) * 1993-06-22 2002-03-16 Thomson Brandt Gmbh Metodo para obtener una matriz decodificadora multicanal.
US5623577A (en) * 1993-07-16 1997-04-22 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions
TW272341B (de) * 1993-07-16 1996-03-11 Sony Co Ltd
US5632003A (en) * 1993-07-16 1997-05-20 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for coding method and apparatus
US7158654B2 (en) * 1993-11-18 2007-01-02 Digimarc Corporation Image processor and image processing method
US5684920A (en) * 1994-03-17 1997-11-04 Nippon Telegraph And Telephone Acoustic signal transform coding method and decoding method having a high efficiency envelope flattening method therein
DE4409368A1 (de) * 1994-03-18 1995-09-21 Fraunhofer Ges Forschung Verfahren zum Codieren mehrerer Audiosignale
JP3277677B2 (ja) * 1994-04-01 2002-04-22 ソニー株式会社 信号符号化方法及び装置、信号記録媒体、信号伝送方法、並びに信号復号化方法及び装置
ATE214524T1 (de) * 1994-11-04 2002-03-15 Koninkl Philips Electronics Nv Kodierung und dekodierung eines breitbandigen digitalen informationssignals
US5629780A (en) * 1994-12-19 1997-05-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Image data compression having minimum perceptual error
US5774846A (en) * 1994-12-19 1998-06-30 Matsushita Electric Industrial Co., Ltd. Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus
EP0820624A1 (de) * 1995-04-10 1998-01-28 Corporate Computer Systems, Inc. System zur komprimierung und dekomprimierung von tonsignalen für digitale übertragung
US5774837A (en) * 1995-09-13 1998-06-30 Voxware, Inc. Speech coding system and method using voicing probability determination
US5960390A (en) * 1995-10-05 1999-09-28 Sony Corporation Coding method for using multi channel audio signals
DE19537338C2 (de) * 1995-10-06 2003-05-22 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Codieren von Audiosignalen
US5819215A (en) * 1995-10-13 1998-10-06 Dobson; Kurt Method and apparatus for wavelet based data compression having adaptive bit rate control for compression of digital audio or other sensory data
JPH09152896A (ja) * 1995-11-30 1997-06-10 Oki Electric Ind Co Ltd 声道予測係数符号化・復号化回路、声道予測係数符号化回路、声道予測係数復号化回路、音声符号化装置及び音声復号化装置
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
US5686964A (en) * 1995-12-04 1997-11-11 Tabatabai; Ali Bit rate control mechanism for digital image and video data compression
FR2742568B1 (fr) * 1995-12-15 1998-02-13 Catherine Quinquis Procede d'analyse par prediction lineaire d'un signal audiofrequence, et procedes de codage et de decodage d'un signal audiofrequence en comportant application
US5682152A (en) * 1996-03-19 1997-10-28 Johnson-Grace Company Data compression using adaptive bit allocation and hybrid lossless entropy encoding
US5812971A (en) * 1996-03-22 1998-09-22 Lucent Technologies Inc. Enhanced joint stereo coding method using temporal envelope shaping
US5822370A (en) * 1996-04-16 1998-10-13 Aura Systems, Inc. Compression/decompression for preservation of high fidelity speech quality at low bandwidth
DE19628293C1 (de) * 1996-07-12 1997-12-11 Fraunhofer Ges Forschung Codieren und Decodieren von Audiosignalen unter Verwendung von Intensity-Stereo und Prädiktion
DE19628292B4 (de) 1996-07-12 2007-08-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Codieren und Decodieren von Stereoaudiospektralwerten
US5969750A (en) * 1996-09-04 1999-10-19 Winbcnd Electronics Corporation Moving picture camera with universal serial bus interface
GB2318029B (en) * 1996-10-01 2000-11-08 Nokia Mobile Phones Ltd Audio coding method and apparatus
SG54379A1 (en) * 1996-10-24 1998-11-16 Sgs Thomson Microelectronics A Audio decoder with an adaptive frequency domain downmixer
JP3339335B2 (ja) * 1996-12-12 2002-10-28 ヤマハ株式会社 圧縮符号化復号方式
JP3283200B2 (ja) * 1996-12-19 2002-05-20 ケイディーディーアイ株式会社 符号化音声データの符号化レート変換方法および装置
FI970266A (fi) * 1997-01-22 1998-07-23 Nokia Telecommunications Oy Menetelmä solukkoradiojärjestelmän ohjauskanavien kantaman pidentämiseksi ja solukkoradiojärjestelmä
DE69829783T2 (de) * 1997-02-08 2005-09-01 Matsushita Electric Industrial Co., Ltd., Kadoma Quantisierungsmatrix für die Codierung von Stand- und Bewegtbildern
JP3143406B2 (ja) * 1997-02-19 2001-03-07 三洋電機株式会社 音声符号化方法
FI114248B (fi) * 1997-03-14 2004-09-15 Nokia Corp Menetelmä ja laite audiokoodaukseen ja audiodekoodaukseen
KR100265112B1 (ko) * 1997-03-31 2000-10-02 윤종용 디브이디 디스크와 디브이디 디스크를 재생하는 장치 및 방법
US6064954A (en) * 1997-04-03 2000-05-16 International Business Machines Corp. Digital audio signal coding
US6741965B1 (en) 1997-04-10 2004-05-25 Sony Corporation Differential stereo using two coding techniques
DE19730129C2 (de) * 1997-07-14 2002-03-07 Fraunhofer Ges Forschung Verfahren zum Signalisieren einer Rauschsubstitution beim Codieren eines Audiosignals
DE19730130C2 (de) * 1997-07-14 2002-02-28 Fraunhofer Ges Forschung Verfahren zum Codieren eines Audiosignals
US6016111A (en) * 1997-07-31 2000-01-18 Samsung Electronics Co., Ltd. Digital data coding/decoding method and apparatus
US6185253B1 (en) * 1997-10-31 2001-02-06 Lucent Technology, Inc. Perceptual compression and robust bit-rate control system
US6253185B1 (en) * 1998-02-25 2001-06-26 Lucent Technologies Inc. Multiple description transform coding of audio using optimal transforms of arbitrary dimension
US6249614B1 (en) * 1998-03-06 2001-06-19 Alaris, Inc. Video compression and decompression using dynamic quantization and/or encoding
US6353807B1 (en) * 1998-05-15 2002-03-05 Sony Corporation Information coding method and apparatus, code transform method and apparatus, code transform control method and apparatus, information recording method and apparatus, and program providing medium
JP3437445B2 (ja) * 1998-05-22 2003-08-18 松下電器産業株式会社 線形信号予測を用いた受信装置及び方法
US6115689A (en) * 1998-05-27 2000-09-05 Microsoft Corporation Scalable audio coder and decoder
US6029126A (en) * 1998-06-30 2000-02-22 Microsoft Corporation Scalable audio coder and decoder
JP3998330B2 (ja) * 1998-06-08 2007-10-24 沖電気工業株式会社 符号化装置
JP3541680B2 (ja) * 1998-06-15 2004-07-14 日本電気株式会社 音声音楽信号の符号化装置および復号装置
DE19840835C2 (de) * 1998-09-07 2003-01-09 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Entropiecodieren von Informationswörtern und Vorrichtung und Verfahren zum Decodieren von Entropie-codierten Informationswörtern
SE519552C2 (sv) 1998-09-30 2003-03-11 Ericsson Telefon Ab L M Flerkanalig signalkodning och -avkodning
CA2252170A1 (en) * 1998-10-27 2000-04-27 Bruno Bessette A method and device for high quality coding of wideband speech and audio signals
JP4610087B2 (ja) * 1999-04-07 2011-01-12 ドルビー・ラボラトリーズ・ライセンシング・コーポレーション 損失のない符号化・復号へのマトリックス改良
US6370502B1 (en) * 1999-05-27 2002-04-09 America Online, Inc. Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec
US6226616B1 (en) * 1999-06-21 2001-05-01 Digital Theater Systems, Inc. Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility
US6658162B1 (en) * 1999-06-26 2003-12-02 Sharp Laboratories Of America Image coding method using visual optimization
JP4242516B2 (ja) * 1999-07-26 2009-03-25 パナソニック株式会社 サブバンド符号化方式
EP1221694B1 (de) * 1999-09-14 2006-07-19 Fujitsu Limited Sprachkodierer/dekodierer
US6418405B1 (en) * 1999-09-30 2002-07-09 Motorola, Inc. Method and apparatus for dynamic segmentation of a low bit rate digital voice message
US7096240B1 (en) * 1999-10-30 2006-08-22 Stmicroelectronics Asia Pacific Pte Ltd. Channel coupling for an AC-3 encoder
US6738074B2 (en) * 1999-12-29 2004-05-18 Texas Instruments Incorporated Image compression system and method
US6499010B1 (en) * 2000-01-04 2002-12-24 Agere Systems Inc. Perceptual audio coder bit allocation scheme providing improved perceptual quality consistency
JP2001285073A (ja) 2000-03-29 2001-10-12 Sony Corp 信号処理装置及び方法
US6757654B1 (en) * 2000-05-11 2004-06-29 Telefonaktiebolaget Lm Ericsson Forward error correction in speech coding
EP1175030B1 (de) 2000-07-07 2008-02-20 Nokia Siemens Networks Oy Verfahren und Vorrichtung für die perzeptuelle Tonkodierung von einem mehrkanal Tonsignal mit Verwendung der kaskadierten diskreten Cosinustransformation oder der modifizierten diskreten Cosinustransformation
JP4857468B2 (ja) * 2001-01-25 2012-01-18 ソニー株式会社 データ処理装置およびデータ処理方法、並びにプログラムおよび記録媒体
US7062445B2 (en) * 2001-01-26 2006-06-13 Microsoft Corporation Quantization loop with heuristic approach
US7136418B2 (en) * 2001-05-03 2006-11-14 University Of Washington Scalable and perceptually ranked signal coding and decoding
US7027982B2 (en) * 2001-12-14 2006-04-11 Microsoft Corporation Quality and rate control strategy for digital audio
US7146313B2 (en) 2001-12-14 2006-12-05 Microsoft Corporation Techniques for measurement of perceptual audio quality
US7460993B2 (en) * 2001-12-14 2008-12-02 Microsoft Corporation Adaptive window-size selection in transform coding
US6934677B2 (en) * 2001-12-14 2005-08-23 Microsoft Corporation Quantization matrices based on critical band pattern information for digital audio wherein quantization bands differ from critical bands
US7240001B2 (en) * 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
US7299190B2 (en) * 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
WO2005062823A2 (en) 2003-12-19 2005-07-14 Savacor, Inc. Digital electrode for cardiac rhythm management

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ATE418136T1 (de) 2009-01-15
US20100318368A1 (en) 2010-12-16
US8255234B2 (en) 2012-08-28
EP2023340A3 (de) 2009-04-29
EP2023340A2 (de) 2009-02-11
JP2010176151A (ja) 2010-08-12
US20120035941A1 (en) 2012-02-09
US8069052B2 (en) 2011-11-29
JP5091272B2 (ja) 2012-12-05
JP2004264811A (ja) 2004-09-24
EP1400955A2 (de) 2004-03-24
ES2316679T3 (es) 2009-04-16
DE20321886U1 (de) 2012-03-02
EP1400955B1 (de) 2008-12-17
EP2261897A1 (de) 2010-12-15
EP1400955A3 (de) 2006-05-10
JP4676140B2 (ja) 2011-04-27

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