DE69032697T2 - Codierverfahren und Codiervorrichtung - Google Patents

Codierverfahren und Codiervorrichtung

Info

Publication number
DE69032697T2
DE69032697T2 DE69032697T DE69032697T DE69032697T2 DE 69032697 T2 DE69032697 T2 DE 69032697T2 DE 69032697 T DE69032697 T DE 69032697T DE 69032697 T DE69032697 T DE 69032697T DE 69032697 T2 DE69032697 T2 DE 69032697T2
Authority
DE
Germany
Prior art keywords
coding
coding method
coding device
Prior art date
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
Application number
DE69032697T
Other languages
English (en)
Other versions
DE69032697D1 (de
Inventor
Naoto Iwahashi
Masayuki Nishiguchi
Makoto C O Sony Corporat Akune
Kenzo Akagiri
Yoshihhito Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69032697D1 publication Critical patent/DE69032697D1/de
Publication of DE69032697T2 publication Critical patent/DE69032697T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3053—Block-companding PCM systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
DE69032697T 1989-07-19 1990-07-19 Codierverfahren und Codiervorrichtung Expired - Lifetime DE69032697T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1186603A JP2844695B2 (ja) 1989-07-19 1989-07-19 信号符号化装置

Publications (2)

Publication Number Publication Date
DE69032697D1 DE69032697D1 (de) 1998-11-19
DE69032697T2 true DE69032697T2 (de) 1999-03-18

Family

ID=16191455

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69032697T Expired - Lifetime DE69032697T2 (de) 1989-07-19 1990-07-19 Codierverfahren und Codiervorrichtung

Country Status (8)

Country Link
US (4) US5197087A (de)
EP (1) EP0409248B1 (de)
JP (1) JP2844695B2 (de)
KR (1) KR100209475B1 (de)
AU (1) AU639002B2 (de)
CA (1) CA2021437C (de)
DE (1) DE69032697T2 (de)
HK (1) HK1013528A1 (de)

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JP3186292B2 (ja) * 1993-02-02 2001-07-11 ソニー株式会社 高能率符号化方法及び装置
JP3186307B2 (ja) * 1993-03-09 2001-07-11 ソニー株式会社 圧縮データ記録装置及び方法
JP3123290B2 (ja) * 1993-03-09 2001-01-09 ソニー株式会社 圧縮データ記録装置及び方法、圧縮データ再生方法、記録媒体
JP3531177B2 (ja) * 1993-03-11 2004-05-24 ソニー株式会社 圧縮データ記録装置及び方法、圧縮データ再生方法
TW232116B (en) * 1993-04-14 1994-10-11 Sony Corp Method or device and recording media for signal conversion
JP3173218B2 (ja) * 1993-05-10 2001-06-04 ソニー株式会社 圧縮データ記録方法及び装置、圧縮データ再生方法、並びに記録媒体
WO1994028633A1 (fr) * 1993-05-31 1994-12-08 Sony Corporation Appareil et procede de codage ou decodage de signaux, et support d'enregistrement
KR100368854B1 (ko) * 1993-06-30 2003-05-17 소니 가부시끼 가이샤 디지털신호의부호화장치,그의복호화장치및기록매체
TW272341B (de) * 1993-07-16 1996-03-11 Sony Co Ltd
TW327223B (en) * 1993-09-28 1998-02-21 Sony Co Ltd Methods and apparatus for encoding an input signal broken into frequency components, methods and apparatus for decoding such encoded signal
EP0692880B1 (de) * 1993-11-04 2001-09-26 Sony Corporation Signalkodierer, signaldekodierer, aufzeichnungsträger und signalkodiererverfahren
US5774844A (en) * 1993-11-09 1998-06-30 Sony Corporation Methods and apparatus for quantizing, encoding and decoding and recording media therefor
JP3175446B2 (ja) * 1993-11-29 2001-06-11 ソニー株式会社 情報圧縮方法及び装置、圧縮情報伸張方法及び装置、圧縮情報記録／伝送装置、圧縮情報再生装置、圧縮情報受信装置、並びに記録媒体
US5731767A (en) * 1994-02-04 1998-03-24 Sony Corporation Information encoding method and apparatus, information decoding method and apparatus, information recording medium, and information transmission method
US5608713A (en) * 1994-02-09 1997-03-04 Sony Corporation Bit allocation of digital audio signal blocks by non-linear processing
JP3186412B2 (ja) * 1994-04-01 2001-07-11 ソニー株式会社 情報符号化方法、情報復号化方法、及び情報伝送方法
JP3277682B2 (ja) * 1994-04-22 2002-04-22 ソニー株式会社 情報符号化方法及び装置、情報復号化方法及び装置、並びに情報記録媒体及び情報伝送方法
WO1995030286A2 (en) * 1994-05-02 1995-11-09 Philips Electronics N.V. Encoding system and encoding method for encoding a digital signal having at least a first and a second digital signal component
JP2776277B2 (ja) * 1994-12-08 1998-07-16 日本電気株式会社 音声符号化装置
JP3371590B2 (ja) * 1994-12-28 2003-01-27 ソニー株式会社 高能率符号化方法及び高能率復号化方法
JPH08223049A (ja) * 1995-02-14 1996-08-30 Sony Corp 信号符号化方法及び装置、信号復号化方法及び装置、情報記録媒体並びに情報伝送方法
EP0772925B1 (de) * 1995-05-03 2004-07-14 Sony Corporation Nichtlineares quantisieren eines informationssignales
US5684895A (en) * 1995-05-11 1997-11-04 Xerox Corporation Method for decoding a compressed image
JP3152109B2 (ja) * 1995-05-30 2001-04-03 日本ビクター株式会社 オーディオ信号の圧縮伸張方法
JP3189660B2 (ja) 1996-01-30 2001-07-16 ソニー株式会社 信号符号化方法
US5848391A (en) * 1996-07-11 1998-12-08 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Method subband of coding and decoding audio signals using variable length windows
JPH1084284A (ja) * 1996-09-06 1998-03-31 Sony Corp 信号再生方法および装置
US7240001B2 (en) 2001-12-14 2007-07-03 Microsoft Corporation Quality improvement techniques in an audio encoder
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
US20030123540A1 (en) * 2001-12-27 2003-07-03 Koninklijke Philips Electronics N.V. Dynamic control in complexity-constrained data compression
US8239197B2 (en) 2002-03-28 2012-08-07 Intellisist, Inc. Efficient conversion of voice messages into text
WO2003084196A1 (en) 2002-03-28 2003-10-09 Martin Dunsmuir Closed-loop command and response system for automatic communications between interacting computer systems over an audio communications channel
US7502743B2 (en) * 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
TW594674B (en) * 2003-03-14 2004-06-21 Mediatek Inc Encoder and a encoding method capable of detecting audio signal transient
CN100339886C (zh) * 2003-04-10 2007-09-26 联发科技股份有限公司 可以检测声音信号的暂态位置的编码器及编码方法
TWI275074B (en) * 2004-04-12 2007-03-01 Vivotek Inc Method for analyzing energy consistency to process data
US7831434B2 (en) * 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
US8457975B2 (en) * 2009-01-28 2013-06-04 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program

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US5187755A (en) * 1988-06-30 1993-02-16 Dainippon Screen Mfg. Co., Ltd. Method of and apparatus for compressing image data
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US5042069A (en) * 1989-04-18 1991-08-20 Pacific Communications Sciences, Inc. Methods and apparatus for reconstructing non-quantized adaptively transformed voice signals

Also Published As

Publication number Publication date
US5197087A (en) 1993-03-23
JPH0352332A (ja) 1991-03-06
EP0409248A2 (de) 1991-01-23
US5299238A (en) 1994-03-29
HK1013528A1 (en) 1999-08-27
KR100209475B1 (ko) 1999-07-15
US5299240A (en) 1994-03-29
JP2844695B2 (ja) 1999-01-06
US5299239A (en) 1994-03-29
CA2021437C (en) 2000-10-17
AU5894990A (en) 1991-01-24
EP0409248B1 (de) 1998-10-14
EP0409248A3 (en) 1992-01-02
AU639002B2 (en) 1993-07-15
CA2021437A1 (en) 1991-01-20
KR910003955A (ko) 1991-02-28
DE69032697D1 (de) 1998-11-19

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Legal Events

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