KR910003955A - 신호 부호화 장치 - Google Patents

신호 부호화 장치 Download PDF

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Publication number
KR910003955A
KR910003955A KR1019900010850A KR900010850A KR910003955A KR 910003955 A KR910003955 A KR 910003955A KR 1019900010850 A KR1019900010850 A KR 1019900010850A KR 900010850 A KR900010850 A KR 900010850A KR 910003955 A KR910003955 A KR 910003955A
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KR
South Korea
Prior art keywords
signal encoding
encoding device
signal
encoding apparatus
block
Prior art date
Application number
KR1019900010850A
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English (en)
Other versions
KR100209475B1 (ko
Inventor
나오또 이와하시
마사유끼 니시구찌
마꼬또 아꾸네
겐조 아까기리
요시히또 후지와라
Original Assignee
오오가 노리오
소니 가부시끼가이샤
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 오오가 노리오, 소니 가부시끼가이샤 filed Critical 오오가 노리오
Publication of KR910003955A publication Critical patent/KR910003955A/ko
Priority to KR1019980055942A priority Critical patent/KR100209474B1/ko
Application granted granted Critical
Publication of KR100209475B1 publication Critical patent/KR100209475B1/ko

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Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion 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
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3053Block-companding PCM systems
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion 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
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

내용 없음.

Description

신호 부호화 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일 실시예 장치의 개략 구성을 도시하는 블록 회로도,
제2도는 음성 신호의 최적 블록길이를 설명하기 위한 파형도,
제3도는 본 발명의 다른 실시예 장치의 개략 구성을 도시하는 블록 회로도.

Claims (1)

  1. 입력 신호파형을 소정시간마다 블록화해서 베어내고, 이 블록내의 신호를 상소 독립인 변환축으로 변환해서 부호화하는 신호 부호화 장치에 있어서, 시간축 방의 상기 파형 베어냄 블록 길이를 입력 신호에 따라서 변화시키는 것을 특징으로 하는 신호 부호화 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900010850A 1989-07-19 1990-07-18 신호 부호화 장치 KR100209475B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980055942A KR100209474B1 (en) 1989-07-19 1998-12-15 Signal coder / decoder and the method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1186603A JP2844695B2 (ja) 1989-07-19 1989-07-19 信号符号化装置
JP186603 1989-07-19

Publications (2)

Publication Number Publication Date
KR910003955A true KR910003955A (ko) 1991-02-28
KR100209475B1 KR100209475B1 (ko) 1999-07-15

Family

ID=16191455

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900010850A KR100209475B1 (ko) 1989-07-19 1990-07-18 신호 부호화 장치

Country Status (8)

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

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1062963C (zh) * 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
US5388181A (en) * 1990-05-29 1995-02-07 Anderson; David J. Digital audio compression system
EP0506394A2 (en) * 1991-03-29 1992-09-30 Sony Corporation Coding apparatus for digital signals
KR100268623B1 (ko) * 1991-06-28 2000-10-16 이데이 노부유끼 압축 데이타 기록 재생 장치 및 신호 처리 방법
CA2075156A1 (en) * 1991-08-02 1993-02-03 Kenzo Akagiri Digital encoder with dynamic quantization bit allocation
DE4225434A1 (de) * 1991-08-02 1993-02-04 Sony Corp Vorrichtung zur aufzeichnung und wiedergabe von komprimierten digitalen daten auf bzw. von einem aufzeichnungstraeger und dabei anwendbares verfahren zur bitentfernung
EP0786874B1 (en) * 1991-09-30 2000-08-16 Sony Corporation Method and apparatus for audio data compression
JP3134455B2 (ja) * 1992-01-29 2001-02-13 ソニー株式会社 高能率符号化装置及び方法
US5765127A (en) * 1992-03-18 1998-06-09 Sony Corp High efficiency encoding method
JP3104400B2 (ja) * 1992-04-27 2000-10-30 ソニー株式会社 オーディオ信号符号化装置及び方法
JPH05316360A (ja) * 1992-05-14 1993-11-26 Fuji Xerox Co Ltd 画像信号の符号化復号装置
JP3153933B2 (ja) * 1992-06-16 2001-04-09 ソニー株式会社 データ符号化装置及び方法並びにデータ復号化装置及び方法
JP3127600B2 (ja) * 1992-09-11 2001-01-29 ソニー株式会社 ディジタル信号復号化装置及び方法
JP3508146B2 (ja) * 1992-09-11 2004-03-22 ソニー株式会社 ディジタル信号符号化復号化装置、ディジタル信号符号化装置及びディジタル信号復号化装置
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
JP3185413B2 (ja) * 1992-11-25 2001-07-09 ソニー株式会社 直交変換演算並びに逆直交変換演算方法及びその装置、ディジタル信号符号化及び/又は復号化装置
EP0607484B1 (en) * 1993-01-20 1998-09-09 Samsung Electronics Co. Ltd. Method and device for encoding and decoding image data
JP3123286B2 (ja) * 1993-02-18 2001-01-09 ソニー株式会社 ディジタル信号処理装置又は方法、及び記録媒体
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
JP3336617B2 (ja) * 1993-05-31 2002-10-21 ソニー株式会社 信号符号化又は復号化装置,及び信号符号化又は復号化方法,並びに記録媒体
DE69428030T2 (de) * 1993-06-30 2002-05-29 Sony Corp Digitales signalkodierungsgerät, dazugehöriges dekodiergerät und aufzeichnungsträger
TW272341B (ko) * 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
WO1995012920A1 (fr) * 1993-11-04 1995-05-11 Sony Corporation Codeur de signaux, decodeur de signaux, support d'enregistrement et procede de codage de signaux
WO1995013660A1 (fr) * 1993-11-09 1995-05-18 Sony Corporation Appareil de quantification, procede de quantification, codeur a haute efficacite, procede de codage a haute efficacite, decodeur, supports d'enregistrement et de codage a haute efficacite
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
EP0775389B1 (en) * 1994-05-02 2002-12-18 Koninklijke 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
US5946652A (en) * 1995-05-03 1999-08-31 Heddle; Robert Methods for non-linearly quantizing and non-linearly dequantizing an information signal using off-center decision levels
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
CA2735329C (en) 2002-03-28 2016-05-03 Intellisist, Inc. Closed-loop command and response system for automatic communications between interacting computer systems over an audio communications channel
US8239197B2 (en) * 2002-03-28 2012-08-07 Intellisist, Inc. Efficient conversion of voice messages into text
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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495620A (en) * 1982-08-05 1985-01-22 At&T Bell Laboratories Transmitting data on the phase of speech
US4754492A (en) * 1985-06-03 1988-06-28 Picturetel Corporation Method and system for adapting a digitized signal processing system for block processing with minimal blocking artifacts
AU592236B2 (en) * 1986-10-16 1990-01-04 Mitsubishi Denki Kabushiki Kaisha Amplitude-adapted vector quantizer
US4791654A (en) * 1987-06-05 1988-12-13 American Telephone And Telegraph Company, At&T Bell Laboratories Resisting the effects of channel noise in digital transmission of information
US4985700A (en) * 1988-03-01 1991-01-15 Canon Kabushiki Kaisha Variable-length coding/decoding device
US4897717A (en) * 1988-03-30 1990-01-30 Starsignal, Inc. Computer-based video compression system
US5187755A (en) * 1988-06-30 1993-02-16 Dainippon Screen Mfg. Co., Ltd. Method of and apparatus for compressing image data
JP2828997B2 (ja) * 1988-07-22 1998-11-25 株式会社日立製作所 適応型変換符号化装置
US5051840A (en) * 1988-12-14 1991-09-24 Fuji Photo Film Co., Ltd. Device for coding a picture signal by compression
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
HK1013528A1 (en) 1999-08-27
AU639002B2 (en) 1993-07-15
US5299238A (en) 1994-03-29
DE69032697D1 (de) 1998-11-19
AU5894990A (en) 1991-01-24
JP2844695B2 (ja) 1999-01-06
EP0409248A3 (en) 1992-01-02
US5299239A (en) 1994-03-29
JPH0352332A (ja) 1991-03-06
EP0409248B1 (en) 1998-10-14
DE69032697T2 (de) 1999-03-18
US5299240A (en) 1994-03-29
EP0409248A2 (en) 1991-01-23
KR100209475B1 (ko) 1999-07-15
CA2021437C (en) 2000-10-17
CA2021437A1 (en) 1991-01-20
US5197087A (en) 1993-03-23

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