FI109627B - Menetelmä digitaalisten signaalien koodausta varten - Google Patents

Menetelmä digitaalisten signaalien koodausta varten Download PDF

Info

Publication number
FI109627B
FI109627B FI925400A FI925400A FI109627B FI 109627 B FI109627 B FI 109627B FI 925400 A FI925400 A FI 925400A FI 925400 A FI925400 A FI 925400A FI 109627 B FI109627 B FI 109627B
Authority
FI
Finland
Prior art keywords
critical
bits
critical band
level
band
Prior art date
Application number
FI925400A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI925400A0 (fi
FI925400A (fi
Inventor
Kenzo Akagiri
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
Priority claimed from JP3091187A external-priority patent/JP3060576B2/ja
Priority claimed from JP3091188A external-priority patent/JP3060577B2/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of FI925400A0 publication Critical patent/FI925400A0/fi
Publication of FI925400A publication Critical patent/FI925400A/fi
Application granted granted Critical
Publication of FI109627B publication Critical patent/FI109627B/fi

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
FI925400A 1991-03-29 1992-11-27 Menetelmä digitaalisten signaalien koodausta varten FI109627B (fi)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP9118791 1991-03-29
JP3091187A JP3060576B2 (ja) 1991-03-29 1991-03-29 ディジタル信号符号化方法
JP3091188A JP3060577B2 (ja) 1991-03-29 1991-03-29 ディジタル信号符号化方法
JP9118891 1991-03-29
PCT/JP1992/000237 WO1992017942A1 (fr) 1991-03-29 1992-02-28 Procede de codage de signaux numeriques
JP9200237 1992-02-28

Publications (3)

Publication Number Publication Date
FI925400A0 FI925400A0 (fi) 1992-11-27
FI925400A FI925400A (fi) 1992-11-27
FI109627B true FI109627B (fi) 2002-09-13

Family

ID=26432649

Family Applications (1)

Application Number Title Priority Date Filing Date
FI925400A FI109627B (fi) 1991-03-29 1992-11-27 Menetelmä digitaalisten signaalien koodausta varten

Country Status (17)

Country Link
US (1) US5311561A (de)
EP (1) EP0531538B1 (de)
KR (1) KR100312664B1 (de)
CN (1) CN1032102C (de)
AT (1) ATE165198T1 (de)
AU (1) AU654533B2 (de)
BR (1) BR9204799A (de)
CA (1) CA2083709A1 (de)
CS (1) CS92692A3 (de)
DE (1) DE69225100T2 (de)
DK (1) DK0531538T3 (de)
FI (1) FI109627B (de)
HU (1) HU213592B (de)
NO (1) NO924552L (de)
PL (1) PL168474B1 (de)
RU (1) RU2090973C1 (de)
WO (1) WO1992017942A1 (de)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5479562A (en) * 1989-01-27 1995-12-26 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding audio information
US5115240A (en) * 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
EP0535889B1 (de) * 1991-09-30 1998-11-11 Sony Corporation Verfahren und Anordnung zur Audiodatenkompression
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
JP3278900B2 (ja) * 1992-05-07 2002-04-30 ソニー株式会社 データ符号化装置及び方法
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
JPH06180948A (ja) * 1992-12-11 1994-06-28 Sony Corp 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
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
US5581654A (en) * 1993-05-25 1996-12-03 Sony Corporation Method and apparatus for information encoding and decoding
CN1038089C (zh) * 1993-05-31 1998-04-15 索尼公司 信号编码或译码装置及信号编码或译码方法
PL174314B1 (pl) * 1993-06-30 1998-07-31 Sony Corp Sposób i urządzenie do dekodowania sygnałów cyfrowych
US5632003A (en) * 1993-07-16 1997-05-20 Dolby Laboratories Licensing Corporation Computationally efficient adaptive bit allocation for coding method and apparatus
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
DE69427222T2 (de) * 1993-10-08 2001-08-30 Sony Corp., Tokio/Tokyo Digitaler signalprozessor, verfahren zum verarbeiten digitaler signale und medium zum aufnehmen von signalen
KR100330290B1 (ko) * 1993-11-04 2002-08-27 소니 가부시끼 가이샤 신호부호화장치,신호복호화장치,및신호부호화방법
CN1111959C (zh) * 1993-11-09 2003-06-18 索尼公司 量化装置、量化方法、高效率编码装置、高效率编码方法、解码装置和高效率解码装置
US5764698A (en) * 1993-12-30 1998-06-09 International Business Machines Corporation Method and apparatus for efficient compression of high quality digital audio
US5608713A (en) * 1994-02-09 1997-03-04 Sony Corporation Bit allocation of digital audio signal blocks by non-linear processing
JPH07261797A (ja) * 1994-03-18 1995-10-13 Mitsubishi Electric Corp 信号符号化装置及び信号復号化装置
CN1103141C (zh) * 1994-04-01 2003-03-12 索尼公司 信息编码方法和设备、信息解码方法和设备、信息传输方法
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
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 (de) * 1994-05-02 2002-12-18 Koninklijke Philips Electronics N.V. Einrichtung und verfahren zum kodieren eines digitalen signals mit mindestens einer ersten und einer zweiten digitalen signalkomponente
JP3277699B2 (ja) * 1994-06-13 2002-04-22 ソニー株式会社 信号符号化方法及び装置並びに信号復号化方法及び装置
TW295747B (de) * 1994-06-13 1997-01-11 Sony Co Ltd
US5787387A (en) * 1994-07-11 1998-07-28 Voxware, Inc. Harmonic adaptive speech coding method and system
JP3277705B2 (ja) 1994-07-27 2002-04-22 ソニー株式会社 情報符号化装置及び方法、並びに情報復号化装置及び方法
JP3341474B2 (ja) * 1994-07-28 2002-11-05 ソニー株式会社 情報符号化方法及び復号化方法、情報符号化装置及び復号化装置、並びに情報記録媒体
US5654952A (en) * 1994-10-28 1997-08-05 Sony Corporation Digital signal encoding method and apparatus and recording medium
JP3557674B2 (ja) * 1994-12-15 2004-08-25 ソニー株式会社 高能率符号化方法及び装置
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
US5940437A (en) * 1995-01-03 1999-08-17 Intel Corporation System and method for reducing the peak load on the processor of a block processing modem
JPH08190764A (ja) * 1995-01-05 1996-07-23 Sony Corp ディジタル信号処理方法、ディジタル信号処理装置及び記録媒体
US5682463A (en) * 1995-02-06 1997-10-28 Lucent Technologies Inc. Perceptual audio compression based on loudness uncertainty
US5734677A (en) * 1995-03-15 1998-03-31 The Chinese University Of Hong Kong Method for compression of loss-tolerant video image data from multiple sources
US5727119A (en) * 1995-03-27 1998-03-10 Dolby Laboratories Licensing Corporation Method and apparatus for efficient implementation of single-sideband filter banks providing accurate measures of spectral magnitude and phase
JP3580444B2 (ja) * 1995-06-14 2004-10-20 ソニー株式会社 信号伝送方法および装置、並びに信号再生方法
JP3082625B2 (ja) * 1995-07-15 2000-08-28 日本電気株式会社 音声信号処理回路
JPH0969781A (ja) * 1995-08-31 1997-03-11 Nippon Steel Corp オーディオデータ符号化装置
CA2185745C (en) * 1995-09-19 2001-02-13 Juin-Hwey Chen Synthesis of speech signals in the absence of coded parameters
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
JP3189660B2 (ja) 1996-01-30 2001-07-16 ソニー株式会社 信号符号化方法
JPH1083623A (ja) * 1996-09-10 1998-03-31 Sony Corp 信号記録方法、信号記録装置、記録媒体および信号処理方法
TW384434B (en) 1997-03-31 2000-03-11 Sony Corp Encoding method, device therefor, decoding method, device therefor and recording medium
US6507804B1 (en) 1997-10-14 2003-01-14 Bently Nevada Corporation Apparatus and method for compressing measurement data corelative to machine status
US6026348A (en) * 1997-10-14 2000-02-15 Bently Nevada Corporation Apparatus and method for compressing measurement data correlative to machine status
EP0966109B1 (de) * 1998-06-15 2005-04-27 Matsushita Electric Industrial Co., Ltd. Audiokodierungsmethode und Audiokodierungsvorrichtung
DE19947877C2 (de) * 1999-10-05 2001-09-13 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Einbringen von Informationen in einen Datenstrom sowie Verfahren und Vorrichtung zum Codieren eines Audiosignals
US20020009000A1 (en) * 2000-01-18 2002-01-24 Qdesign Usa, Inc. Adding imperceptible noise to audio and other types of signals to cause significant degradation when compressed and decompressed
EP1706866B1 (de) * 2004-01-20 2008-03-19 Dolby Laboratories Licensing Corporation Audiocodierung auf der basis von blockgruppierung
ATE475489T1 (de) 2005-06-14 2010-08-15 Basell Polyolefine Gmbh Mehrlagige kunststoff- korrosionsschutzbeschichtung mit verbesserten eigenschaften
US8599925B2 (en) 2005-08-12 2013-12-03 Microsoft Corporation Efficient coding and decoding of transform blocks
GB201004667D0 (en) 2010-03-22 2010-05-05 Optimized Systems And Solution Method and apparatus for compression and de-compression of spectral data
RU2517356C2 (ru) * 2012-09-10 2014-05-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Мордовский государственный университет им. Н.П. Огарёва" Способ снижения нелинейных искажений тока в нелинейной комплексной нагрузке и устройство для его осуществления
CN104703093B (zh) * 2013-12-09 2018-07-17 中国移动通信集团公司 一种音频输出方法及装置
CN112019220B (zh) * 2020-08-21 2023-07-04 广东省新一代通信与网络创新研究院 一种基于差值偏置检测的块浮点数据压缩方法及装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064119B1 (de) * 1981-04-30 1985-08-28 International Business Machines Corporation Sprachkodierungsverfahren und Einrichtung zur Durchführung des Verfahrens
JPS60237738A (ja) * 1984-05-11 1985-11-26 Sony Corp デイジタル信号伝送装置
JP3010637B2 (ja) * 1989-07-29 2000-02-21 ソニー株式会社 量子化装置及び量子化方法
JP2913696B2 (ja) * 1989-09-30 1999-06-28 ソニー株式会社 ディジタル信号符号化方法
JP2811810B2 (ja) * 1989-10-05 1998-10-15 ソニー株式会社 信号符号化装置
JPH03132218A (ja) * 1989-10-18 1991-06-05 Sony Corp ディジタルデータの高能率符号化装置
JPH03132228A (ja) * 1989-10-18 1991-06-05 Victor Co Of Japan Ltd 直交変換信号符号化復号化方式
US5134475A (en) * 1990-12-11 1992-07-28 At&T Bell Laboratories Adaptive leak hdtv encoder

Also Published As

Publication number Publication date
WO1992017942A1 (fr) 1992-10-15
HU213592B (en) 1997-08-28
CA2083709A1 (en) 1992-09-30
RU2090973C1 (ru) 1997-09-20
HU9203759D0 (en) 1993-04-28
CN1065565A (zh) 1992-10-21
PL294003A2 (en) 1992-11-30
CS92692A3 (en) 1992-10-14
NO924552L (no) 1993-01-22
HUT63278A (en) 1993-07-28
FI925400A0 (fi) 1992-11-27
DK0531538T3 (da) 1998-10-19
CN1032102C (zh) 1996-06-19
DE69225100T2 (de) 1998-08-06
DE69225100D1 (de) 1998-05-20
EP0531538A4 (en) 1994-09-21
ATE165198T1 (de) 1998-05-15
EP0531538A1 (de) 1993-03-17
KR100312664B1 (ko) 2002-12-26
BR9204799A (pt) 1993-07-13
FI925400A (fi) 1992-11-27
AU1338392A (en) 1992-11-02
EP0531538B1 (de) 1998-04-15
AU654533B2 (en) 1994-11-10
PL168474B1 (pl) 1996-02-29
NO924552D0 (no) 1992-11-25
US5311561A (en) 1994-05-10

Similar Documents

Publication Publication Date Title
FI109627B (fi) Menetelmä digitaalisten signaalien koodausta varten
FI112979B (fi) Digitaalisen datan erittäin tehokas koodauslaite
EP0968497B1 (de) Audio-kodierverfahren mit veränderlicher kodelänge unter verwendung einer mehrzahl von teilband-bitverteilungsmoden
US5115240A (en) Method and apparatus for encoding voice signals divided into a plurality of frequency bands
KR100316582B1 (ko) 스테레오포닉스펙트럼값의부호화및복호화프로세스
KR100331591B1 (ko) 디지탈신호부호화복호화장치,디지탈신호부호화장치및디지탈신호복호화장치
EP0525809B1 (de) Digitaler Kodierer mit dynamischer Quantisierungsbitverteilung
CA3131695C (en) Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals
EP0691052A1 (de) Verfahren und gerät zum kodieren von mit mehreren bits kodiertem digitalem ton durch subtraktion eines adaptiven zittersignals, einfügen von versteckten kanalbits und filtrierung, sowie kodier- und dekodiergerät zur verwendung bei diesem verfahren
FI101252B (fi) Signaalin siirtomenetelmä
US20080136686A1 (en) Method for the scalable coding of stereo-signals
JPH07297726A (ja) 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
US4319082A (en) Adaptive prediction differential-PCM transmission method and circuit using filtering by sub-bands and spectral analysis
CA1269135A (en) Sub-band coders, decoders and filters
KR100303580B1 (ko) 송신기,엔코딩장치및송신방법
US5625745A (en) Noise imaging protection for multi-channel audio signals
JPH0519798A (ja) 信号処理装置
JP3827720B2 (ja) 差分コーディング原理を用いる送信システム
KR950015080B1 (ko) 엠파시스 및 디엠파시스회로
JPH04302536A (ja) ディジタル信号符号化方法
JPH0519797A (ja) 量子化方法
JPH02264520A (ja) 帯域分割符号化復号方式並びに帯域分割符号化器及び帯域分割復号器
JPH04104618A (ja) ディジタル信号符号化装置
JPH02131611A (ja) デイジタル信号処理装置
JPS59214346A (ja) サブバンド符号化方法とその符号化復号器