FI109627B - Menetelmä digitaalisten signaalien koodausta varten - Google Patents
Menetelmä digitaalisten signaalien koodausta varten Download PDFInfo
- 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
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)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3091188A JP3060577B2 (ja) | 1991-03-29 | 1991-03-29 | ディジタル信号符号化方法 |
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 |
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 |
---|---|
FI925400A FI925400A (fi) | 1992-11-27 |
FI925400A0 FI925400A0 (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 (fr) |
EP (1) | EP0531538B1 (fr) |
KR (1) | KR100312664B1 (fr) |
CN (1) | CN1032102C (fr) |
AT (1) | ATE165198T1 (fr) |
AU (1) | AU654533B2 (fr) |
BR (1) | BR9204799A (fr) |
CA (1) | CA2083709A1 (fr) |
CS (1) | CS92692A3 (fr) |
DE (1) | DE69225100T2 (fr) |
DK (1) | DK0531538T3 (fr) |
FI (1) | FI109627B (fr) |
HU (1) | HU213592B (fr) |
NO (1) | NO924552L (fr) |
PL (1) | PL168474B1 (fr) |
RU (1) | RU2090973C1 (fr) |
WO (1) | WO1992017942A1 (fr) |
Families Citing this family (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5479562A (en) * | 1989-01-27 | 1995-12-26 | Dolby Laboratories Licensing Corporation | Method and apparatus for encoding and decoding audio information |
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 |
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 (fr) * | 1991-09-30 | 1998-11-11 | Sony Corporation | Procédé et dispositif pour la compression de signaux audio-numériques |
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 |
ATE211326T1 (de) * | 1993-05-31 | 2002-01-15 | Sony Corp | Verfahren und vorrichtung zum kodieren oder dekodieren von signalen und aufzeichnungsmedium |
US5765126A (en) * | 1993-06-30 | 1998-06-09 | Sony Corporation | Method and apparatus for variable length encoding of separated tone and noise characteristic components of an acoustic signal |
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 |
US5566154A (en) * | 1993-10-08 | 1996-10-15 | Sony Corporation | Digital signal processing apparatus, digital signal processing method and data recording medium |
KR100330290B1 (ko) * | 1993-11-04 | 2002-08-27 | 소니 가부시끼 가이샤 | 신호부호화장치,신호복호화장치,및신호부호화방법 |
EP0692881B1 (fr) * | 1993-11-09 | 2005-06-15 | 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 |
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 |
PL311812A1 (en) * | 1994-04-01 | 1996-03-18 | Sony Corp | Method of and apparatus for encoding information, method of and apparatus fro decoding information, method of transmitting information and information recording medium |
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 |
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 |
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 (fr) * | 1994-05-02 | 1995-11-09 | Philips Electronics N.V. | Systeme et procede de codage visant a coder un signal numerique possedant au moins un premier et un second composant |
TW295747B (fr) * | 1994-06-13 | 1997-01-11 | Sony Co Ltd | |
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 |
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 |
DE69620967T2 (de) * | 1995-09-19 | 2002-11-07 | At & T Corp., New York | Synthese von Sprachsignalen in Abwesenheit kodierter Parameter |
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 |
US6026348A (en) * | 1997-10-14 | 2000-02-15 | Bently Nevada Corporation | Apparatus and method for compressing measurement data correlative to machine status |
US6507804B1 (en) | 1997-10-14 | 2003-01-14 | Bently Nevada Corporation | Apparatus and method for compressing measurement data corelative to machine status |
EP0966109B1 (fr) * | 1998-06-15 | 2005-04-27 | Matsushita Electric Industrial Co., Ltd. | Procédé et dispositif de codage audio |
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 |
KR20060131798A (ko) * | 2004-01-20 | 2006-12-20 | 돌비 레버러토리즈 라이쎈싱 코오포레이션 | 블록 그룹화에 기반한 오디오 코딩 |
CN101227983B (zh) | 2005-06-14 | 2015-08-19 | 巴塞尔聚烯烃有限公司 | 性能改进的多层塑胶防腐蚀涂层 |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0064119B1 (fr) * | 1981-04-30 | 1985-08-28 | International Business Machines Corporation | Perfectionnement aux procédés de codage de la voix et dispositif de mise en oeuvre du procédé perfectionné |
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 |
-
1992
- 1992-02-28 HU HU9203759A patent/HU213592B/hu not_active IP Right Cessation
- 1992-02-28 EP EP92906204A patent/EP0531538B1/fr not_active Expired - Lifetime
- 1992-02-28 WO PCT/JP1992/000237 patent/WO1992017942A1/fr active IP Right Grant
- 1992-02-28 DE DE69225100T patent/DE69225100T2/de not_active Expired - Fee Related
- 1992-02-28 KR KR1019920702997A patent/KR100312664B1/ko not_active IP Right Cessation
- 1992-02-28 AT AT92906204T patent/ATE165198T1/de not_active IP Right Cessation
- 1992-02-28 DK DK92906204T patent/DK0531538T3/da active
- 1992-02-28 CA CA002083709A patent/CA2083709A1/fr not_active Abandoned
- 1992-02-28 AU AU13383/92A patent/AU654533B2/en not_active Ceased
- 1992-02-28 RU RU92016428/09A patent/RU2090973C1/ru not_active IP Right Cessation
- 1992-02-28 BR BR9204799A patent/BR9204799A/pt not_active Application Discontinuation
- 1992-03-26 US US07/857,774 patent/US5311561A/en not_active Expired - Fee Related
- 1992-03-27 PL PL92294003A patent/PL168474B1/pl unknown
- 1992-03-27 CS CS92926A patent/CS92692A3/cs unknown
- 1992-03-28 CN CN92102294A patent/CN1032102C/zh not_active Expired - Fee Related
- 1992-11-25 NO NO92924552A patent/NO924552L/no unknown
- 1992-11-27 FI FI925400A patent/FI109627B/fi active
Also Published As
Publication number | Publication date |
---|---|
HUT63278A (en) | 1993-07-28 |
EP0531538B1 (fr) | 1998-04-15 |
CN1032102C (zh) | 1996-06-19 |
WO1992017942A1 (fr) | 1992-10-15 |
DE69225100D1 (de) | 1998-05-20 |
HU9203759D0 (en) | 1993-04-28 |
KR100312664B1 (ko) | 2002-12-26 |
ATE165198T1 (de) | 1998-05-15 |
HU213592B (en) | 1997-08-28 |
AU654533B2 (en) | 1994-11-10 |
NO924552L (no) | 1993-01-22 |
FI925400A (fi) | 1992-11-27 |
DE69225100T2 (de) | 1998-08-06 |
AU1338392A (en) | 1992-11-02 |
DK0531538T3 (da) | 1998-10-19 |
EP0531538A4 (en) | 1994-09-21 |
EP0531538A1 (fr) | 1993-03-17 |
PL294003A2 (en) | 1992-11-30 |
FI925400A0 (fi) | 1992-11-27 |
CA2083709A1 (fr) | 1992-09-30 |
RU2090973C1 (ru) | 1997-09-20 |
PL168474B1 (pl) | 1996-02-29 |
CS92692A3 (en) | 1992-10-14 |
NO924552D0 (no) | 1992-11-25 |
BR9204799A (pt) | 1993-07-13 |
US5311561A (en) | 1994-05-10 |
CN1065565A (zh) | 1992-10-21 |
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