DE69024017D1 - Digitalsignalkodierungseinrichtung. - Google Patents

Digitalsignalkodierungseinrichtung.

Info

Publication number
DE69024017D1
DE69024017D1 DE69024017T DE69024017T DE69024017D1 DE 69024017 D1 DE69024017 D1 DE 69024017D1 DE 69024017 T DE69024017 T DE 69024017T DE 69024017 T DE69024017 T DE 69024017T DE 69024017 D1 DE69024017 D1 DE 69024017D1
Authority
DE
Germany
Prior art keywords
digital signal
coding device
signal coding
digital
signal
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
DE69024017T
Other languages
English (en)
Other versions
DE69024017T2 (de
Inventor
Masayuki Nishiguchi
Yoshihito Fujiwara
Tomoko Umezawa
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 DE69024017D1 publication Critical patent/DE69024017D1/de
Publication of DE69024017T2 publication Critical patent/DE69024017T2/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
    • 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)
DE69024017T 1989-09-30 1990-09-26 Digitalsignalkodierungseinrichtung. Expired - Lifetime DE69024017T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1255798A JPH03117919A (ja) 1989-09-30 1989-09-30 ディジタル信号符号化装置

Publications (2)

Publication Number Publication Date
DE69024017D1 true DE69024017D1 (de) 1996-01-18
DE69024017T2 DE69024017T2 (de) 1996-05-09

Family

ID=17283782

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69024017T Expired - Lifetime DE69024017T2 (de) 1989-09-30 1990-09-26 Digitalsignalkodierungseinrichtung.

Country Status (5)

Country Link
US (1) US5151941A (de)
EP (1) EP0421259B1 (de)
JP (1) JPH03117919A (de)
KR (1) KR910007294A (de)
DE (1) DE69024017T2 (de)

Families Citing this family (49)

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USRE40280E1 (en) 1988-12-30 2008-04-29 Lucent Technologies Inc. Rate loop processor for perceptual encoder/decoder
USRE37864E1 (en) * 1990-07-13 2002-10-01 Sony Corporation Quantizing error reducer for audio signal
JPH0472909A (ja) * 1990-07-13 1992-03-06 Sony Corp オーディオ信号の量子化誤差低減装置
JP3158458B2 (ja) * 1991-01-31 2001-04-23 日本電気株式会社 階層表現された信号の符号化方式
ZA921988B (en) * 1991-03-29 1993-02-24 Sony Corp High efficiency digital data encoding and decoding apparatus
EP0506394A2 (de) * 1991-03-29 1992-09-30 Sony Corporation Einrichtung zur Kodierung von digitalen Signalen
JP3134337B2 (ja) * 1991-03-30 2001-02-13 ソニー株式会社 ディジタル信号符号化方法
JP3134338B2 (ja) * 1991-03-30 2001-02-13 ソニー株式会社 ディジタル音声信号符号化方法
KR100268623B1 (ko) * 1991-06-28 2000-10-16 이데이 노부유끼 압축 데이타 기록 재생 장치 및 신호 처리 방법
ES2164640T3 (es) * 1991-08-02 2002-03-01 Sony Corp Codificador digital con asignacion dinamica de bits de cuantificacion.
EP0786874B1 (de) * 1991-09-30 2000-08-16 Sony Corporation Verfahren und Einrichtung zur Audiodatenkompression
JP3141450B2 (ja) * 1991-09-30 2001-03-05 ソニー株式会社 オーディオ信号処理方法
US5506623A (en) * 1991-12-19 1996-04-09 Sony Corporation Data compression methods and systems with quantization distortion measurement means
JP3241778B2 (ja) 1991-12-24 2001-12-25 ソニー株式会社 符号化装置
US5369724A (en) * 1992-01-17 1994-11-29 Massachusetts Institute Of Technology Method and apparatus for encoding, decoding and compression of audio-type data using reference coefficients located within a band of coefficients
US5394508A (en) * 1992-01-17 1995-02-28 Massachusetts Institute Of Technology Method and apparatus for encoding decoding and compression of audio-type data
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
EP0559348A3 (de) 1992-03-02 1993-11-03 AT&T Corp. Rateurregelschleifenprozessor für einen wahrnehmungsgebundenen Koder/Dekoder
US5765127A (en) * 1992-03-18 1998-06-09 Sony Corp High efficiency encoding method
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
JP3189401B2 (ja) * 1992-07-29 2001-07-16 ソニー株式会社 音声データ符号化方法及び音声データ符号化装置
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
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
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
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
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
EP0653846B1 (de) * 1993-05-31 2001-12-19 Sony Corporation Verfahren und vorrichtung zum kodieren oder dekodieren von signalen und aufzeichnungsmedium
EP0654947B1 (de) * 1993-06-08 2000-02-23 Sony Corporation Kodierer und verfahren zur kodierung
PL173718B1 (pl) * 1993-06-30 1998-04-30 Sony Corp Sposób i urządzenie do kodowania sygnałów cyfrowych
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
KR100330290B1 (ko) * 1993-11-04 2002-08-27 소니 가부시끼 가이샤 신호부호화장치,신호복호화장치,및신호부호화방법
US5774844A (en) * 1993-11-09 1998-06-30 Sony Corporation Methods and apparatus for quantizing, encoding and decoding and recording media therefor
TW295747B (de) * 1994-06-13 1997-01-11 Sony Co Ltd
US5646961A (en) * 1994-12-30 1997-07-08 Lucent Technologies Inc. Method for noise weighting filtering
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
JP2842276B2 (ja) * 1995-02-24 1998-12-24 日本電気株式会社 広帯域信号符号化装置
JP3082625B2 (ja) * 1995-07-15 2000-08-28 日本電気株式会社 音声信号処理回路
JP2861889B2 (ja) * 1995-10-18 1999-02-24 日本電気株式会社 音声パケット伝送システム
TW321810B (de) * 1995-10-26 1997-12-01 Sony Co Ltd
CN1126264C (zh) * 1996-02-08 2003-10-29 松下电器产业株式会社 宽频带声音信号编码装置和宽频带声音信号编码解码装置
FR2749723B1 (fr) * 1996-06-06 1998-09-04 France Telecom Procede et dispositif de codage en compression d'un signal numerique
JP3318825B2 (ja) * 1996-08-20 2002-08-26 ソニー株式会社 デジタル信号符号化処理方法、デジタル信号符号化処理装置、デジタル信号記録方法、デジタル信号記録装置、記録媒体、デジタル信号伝送方法及びデジタル信号伝送装置
US6092041A (en) * 1996-08-22 2000-07-18 Motorola, Inc. System and method of encoding and decoding a layered bitstream by re-applying psychoacoustic analysis in the decoder
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
FR2768547B1 (fr) * 1997-09-18 1999-11-19 Matra Communication Procede de debruitage d'un signal de parole numerique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535472A (en) * 1982-11-05 1985-08-13 At&T Bell Laboratories Adaptive bit allocator
IT1184023B (it) * 1985-12-17 1987-10-22 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante analisi a sottobande e quantizzazione vettorariale con allocazione dinamica dei bit di codifica
US4868868A (en) * 1986-09-30 1989-09-19 Oki Electric Industry Co., Ltd. Sub-band speech analyzing and synthesizing device
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
US4831624A (en) * 1987-06-04 1989-05-16 Motorola, Inc. Error detection method for sub-band coding
US4805193A (en) * 1987-06-04 1989-02-14 Motorola, Inc. Protection of energy information in sub-band coding
US5001761A (en) * 1988-02-09 1991-03-19 Nec Corporation Device for normalizing a speech spectrum
US4964166A (en) * 1988-05-26 1990-10-16 Pacific Communication Science, Inc. Adaptive transform coder having minimal bit allocation processing

Also Published As

Publication number Publication date
EP0421259B1 (de) 1995-12-06
US5151941A (en) 1992-09-29
DE69024017T2 (de) 1996-05-09
EP0421259A3 (en) 1992-07-08
JPH03117919A (ja) 1991-05-20
EP0421259A2 (de) 1991-04-10
KR910007294A (ko) 1991-04-30

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Legal Events

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8364 No opposition during term of opposition