SG76469A1 - Digital signal encoders - Google Patents

Digital signal encoders

Info

Publication number
SG76469A1
SG76469A1 SG1996008093A SG1996008093A SG76469A1 SG 76469 A1 SG76469 A1 SG 76469A1 SG 1996008093 A SG1996008093 A SG 1996008093A SG 1996008093 A SG1996008093 A SG 1996008093A SG 76469 A1 SG76469 A1 SG 76469A1
Authority
SG
Singapore
Prior art keywords
digital signal
signal encoders
encoders
digital
signal
Prior art date
Application number
SG1996008093A
Other languages
English (en)
Inventor
Kenso Akagiri
Kyoya Tsutsui
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
Publication of SG76469A1 publication Critical patent/SG76469A1/en

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
    • 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
    • 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)
SG1996008093A 1990-08-24 1991-08-22 Digital signal encoders SG76469A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2221366A JP3033156B2 (ja) 1990-08-24 1990-08-24 ディジタル信号符号化装置

Publications (1)

Publication Number Publication Date
SG76469A1 true SG76469A1 (en) 2000-11-21

Family

ID=16765671

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996008093A SG76469A1 (en) 1990-08-24 1991-08-22 Digital signal encoders

Country Status (7)

Country Link
US (1) US5260980A (fr)
EP (1) EP0473367B1 (fr)
JP (1) JP3033156B2 (fr)
KR (1) KR100221892B1 (fr)
CA (1) CA2049786C (fr)
DE (1) DE69116476T2 (fr)
SG (1) SG76469A1 (fr)

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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
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
JP3186290B2 (ja) * 1993-01-20 2001-07-11 ソニー株式会社 符号化方法、符号化装置、復号化装置及び記録媒体
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
JP3188013B2 (ja) * 1993-02-19 2001-07-16 松下電器産業株式会社 変換符号化装置のビット配分方法
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
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
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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
US5608713A (en) * 1994-02-09 1997-03-04 Sony Corporation Bit allocation of digital audio signal blocks by non-linear processing
DE4405659C1 (de) * 1994-02-22 1995-04-06 Fraunhofer Ges Forschung Verfahren zum kaskadierten Codieren und Decodieren von Audiodaten
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
WO1995032556A1 (fr) * 1994-05-19 1995-11-30 Philips Electronics N.V. Montage permettant de determiner le signal de spectre d'un signal numerique a large bande pour en deriver une information d'allocation de bits
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
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
CZ294349B6 (cs) * 1994-11-04 2004-12-15 Koninklijke Philips Electronics N.V. Zařízení pro kódování a dekódování širokopásmového digitálního informačního signálu, způsob kódování a dekódování, kódovaný signál a nosič záznamu
JP2776277B2 (ja) * 1994-12-08 1998-07-16 日本電気株式会社 音声符号化装置
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
JP2776775B2 (ja) * 1995-10-25 1998-07-16 日本電気アイシーマイコンシステム株式会社 音声符号化装置及び音声復号化装置
US6167241A (en) * 1996-10-28 2000-12-26 Int Labs, Inc. Technique for performing amplitude modulation without cheating side-bands
DE19647399C1 (de) 1996-11-15 1998-07-02 Fraunhofer Ges Forschung Gehörangepaßte Qualitätsbeurteilung von Audiotestsignalen
GB2349054A (en) * 1999-04-16 2000-10-18 Nds Ltd Digital audio signal encoders
JP2002135122A (ja) 2000-10-19 2002-05-10 Nec Corp オーディオ信号符号化装置
JP2003110429A (ja) * 2001-09-28 2003-04-11 Sony Corp 符号化方法及び装置、復号方法及び装置、伝送方法及び装置、並びに記録媒体
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
US7502743B2 (en) 2002-09-04 2009-03-10 Microsoft Corporation Multi-channel audio encoding and decoding with multi-channel transform selection
US7299190B2 (en) * 2002-09-04 2007-11-20 Microsoft Corporation Quantization and inverse quantization for audio
JP4676140B2 (ja) * 2002-09-04 2011-04-27 マイクロソフト コーポレーション オーディオの量子化および逆量子化
US7716712B2 (en) * 2003-06-18 2010-05-11 General Instrument Corporation Narrowband interference and identification and digital processing for cable television return path performance enhancement
US7460990B2 (en) 2004-01-23 2008-12-02 Microsoft Corporation Efficient coding of digital media spectral data using wide-sense perceptual similarity
DE102004028694B3 (de) 2004-06-14 2005-12-22 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Umsetzen eines Informationssignals in eine Spektraldarstellung mit variabler Auflösung
US7630882B2 (en) * 2005-07-15 2009-12-08 Microsoft Corporation Frequency segmentation to obtain bands for efficient coding of digital media
US7539612B2 (en) 2005-07-15 2009-05-26 Microsoft Corporation Coding and decoding scale factor information
US7562021B2 (en) * 2005-07-15 2009-07-14 Microsoft Corporation Modification of codewords in dictionary used for efficient coding of digital media spectral data
US8225392B2 (en) * 2005-07-15 2012-07-17 Microsoft Corporation Immunizing HTML browsers and extensions from known vulnerabilities
US7953604B2 (en) * 2006-01-20 2011-05-31 Microsoft Corporation Shape and scale parameters for extended-band frequency coding
US8190425B2 (en) * 2006-01-20 2012-05-29 Microsoft Corporation Complex cross-correlation parameters for multi-channel audio
US7831434B2 (en) 2006-01-20 2010-11-09 Microsoft Corporation Complex-transform channel coding with extended-band frequency coding
KR20080072224A (ko) * 2007-02-01 2008-08-06 삼성전자주식회사 오디오 부호화 및 복호화 장치와 그 방법
US7761290B2 (en) 2007-06-15 2010-07-20 Microsoft Corporation Flexible frequency and time partitioning in perceptual transform coding of audio
US8046214B2 (en) * 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US7885819B2 (en) 2007-06-29 2011-02-08 Microsoft Corporation Bitstream syntax for multi-process audio decoding
US8249883B2 (en) 2007-10-26 2012-08-21 Microsoft Corporation Channel extension coding for multi-channel source
WO2014094242A1 (fr) * 2012-12-18 2014-06-26 Motorola Solutions, Inc. Procédé et appareil pour atténuer une rétroaction dans un récepteur radio numérique
EP4365890A1 (fr) * 2022-11-07 2024-05-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Appareil et procédé de génération adaptative de sons de masquage vocaux harmoniques

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EP0059294B1 (fr) * 1981-02-27 1984-11-21 International Business Machines Corporation Perfectionnement aux procédés de transmission et dispositif de mise en oeuvre du procédé perfectionné
US4535472A (en) * 1982-11-05 1985-08-13 At&T Bell Laboratories Adaptive bit allocator
DE3506912A1 (de) * 1985-02-27 1986-08-28 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Verfahren zur uebertragung eines audiosignals
US5109417A (en) * 1989-01-27 1992-04-28 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
JPH02309820A (ja) * 1989-05-25 1990-12-25 Sony Corp デイジタル信号処理装置
CA2032765C (fr) * 1989-12-21 1995-12-12 Hidetaka Yoshikawa Appareil de communication a vitesse de codage variable

Also Published As

Publication number Publication date
DE69116476D1 (de) 1996-02-29
EP0473367A1 (fr) 1992-03-04
DE69116476T2 (de) 1996-06-05
KR100221892B1 (ko) 1999-09-15
EP0473367B1 (fr) 1996-01-17
JP3033156B2 (ja) 2000-04-17
CA2049786C (fr) 2003-04-08
KR920005507A (ko) 1992-03-28
JPH04104617A (ja) 1992-04-07
US5260980A (en) 1993-11-09
CA2049786A1 (fr) 1992-02-25

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