FR2507029A1 - Procede et appareil permettant de coder des mots d'information de n bits successifs en mots de code de m bits successifs - Google Patents

Procede et appareil permettant de coder des mots d'information de n bits successifs en mots de code de m bits successifs

Info

Publication number
FR2507029A1
FR2507029A1 FR8209067A FR8209067A FR2507029A1 FR 2507029 A1 FR2507029 A1 FR 2507029A1 FR 8209067 A FR8209067 A FR 8209067A FR 8209067 A FR8209067 A FR 8209067A FR 2507029 A1 FR2507029 A1 FR 2507029A1
Authority
FR
France
Prior art keywords
bits
successive bit
words
successive
code words
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.)
Granted
Application number
FR8209067A
Other languages
English (en)
Other versions
FR2507029B1 (fr
Inventor
Norihisa Shirota
Takao Abe
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
Publication of FR2507029A1 publication Critical patent/FR2507029A1/fr
Application granted granted Critical
Publication of FR2507029B1 publication Critical patent/FR2507029B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
    • G11B2020/1438—8 to 10 modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)

Abstract

L'INVENTION CONCERNE UN PROCEDE ET UN APPAREIL PERMETTANT DE CODER DES MOTS D'INFORMATION DE N BITS SUCCESSIFS EN DES MOTS DE CODE DE M BITS SUCCESSIFS. L'APPAREIL COMPREND UN SELECTEUR 12 QUI SELECTIONNE UN GROUPE DE MOTS DE CODE COMPORTANT AU MOINS DEUX MOTS DE CODE DE M BITS CHACUN REPRESENTATIF DU MOT D'INFORMATION DE N BITS. CES MOTS DE CODE AYANT DES PREMIERS BITS DE SENS OPPOSES ET DES DISPARITES DE VALEURS ABSOLUES EGALE, AINSI QUE DEUX BITS INTERIEURS CONSECUTIFS DU MEME SENS LOGIQUE. L'APPAREIL COMPREND EN OUTRE UN DETECTEUR DE DERNIER BIT, UN CALCULATEUR DE VARIATION DE SOMME NUMERIQUE 15, 16, 17 QUI DETERMINE LA VARIATION DE SOMME NUMERIQUE DES MOTS DE CODE SUCCESSIFS PRECEDENTS, ET UN SELECTEUR DE MOT DE CODE 18, A, A QUI REPOND A LA DETECTION DU DERNIER BIT ET A LA DETERMINATION DE LA VARIATION DE SOMME NUMERIQUE EN DESIGNANT LE MOT DE CODE DE M BITS DU GROUPE SELECTIONNE QUI CORRESPOND AUX CRITERES.
FR8209067A 1981-05-26 1982-05-25 Procede et appareil permettant de coder des mots d'information de n bits successifs en mots de code de m bits successifs Expired FR2507029B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56079677A JPS57195308A (en) 1981-05-26 1981-05-26 Block coding method

Publications (2)

Publication Number Publication Date
FR2507029A1 true FR2507029A1 (fr) 1982-12-03
FR2507029B1 FR2507029B1 (fr) 1986-02-28

Family

ID=13696823

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8209067A Expired FR2507029B1 (fr) 1981-05-26 1982-05-25 Procede et appareil permettant de coder des mots d'information de n bits successifs en mots de code de m bits successifs

Country Status (9)

Country Link
US (1) US4517552A (fr)
JP (1) JPS57195308A (fr)
AT (1) AT384695B (fr)
AU (1) AU548434B2 (fr)
CA (1) CA1193016A (fr)
DE (1) DE3219439A1 (fr)
FR (1) FR2507029B1 (fr)
GB (1) GB2099263B (fr)
NL (1) NL8202159A (fr)

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US4598326A (en) * 1983-10-18 1986-07-01 Honeywell Inc. Digital recording apparatus with disparity reducing encoder
JPS60113366A (ja) * 1983-11-24 1985-06-19 Sony Corp 情報変換方式
JPS60262279A (ja) * 1984-06-08 1985-12-25 Hitachi Ltd データ変換方法
GB8423165D0 (en) * 1984-09-13 1984-10-17 Indep Broadcasting Authority Digital recording/reproducing apparatus
FR2580129B1 (fr) * 1985-04-04 1987-05-22 Telecommunications Sa
JPS6249724A (ja) * 1985-08-29 1987-03-04 Nec Corp デジタル変調方式
US4775985A (en) * 1987-04-06 1988-10-04 Sony Corporation Method of dc-free 8/9 nrz coding using a unique sync word pattern
DE3821450A1 (de) * 1988-06-27 1989-12-28 Thomson Brandt Gmbh Uebertragungssystem mit einem uebertragungscode fuer binaere daten
US5438621A (en) * 1988-11-02 1995-08-01 Hewlett-Packard Company DC-free line code and bit and frame synchronization for arbitrary data transmission
JP2870843B2 (ja) * 1989-08-31 1999-03-17 ソニー株式会社 情報伝送装置
EP0494267B1 (fr) * 1989-09-29 1995-01-25 Eastman Kodak Company Systeme de son optique numerique
US5095484A (en) * 1989-11-13 1992-03-10 International Business Machines Company Corporation Phase invariant rate 8/10 matched spectral null code for PRML
JPH063943B2 (ja) * 1989-11-13 1994-01-12 インターナショナル・ビジネス・マシーンズ・コーポレーション ２進データ列の符号化方法
GB2247138B (en) * 1990-06-29 1994-10-12 Digital Equipment Corp System and method for error detection and reducing simultaneous switching noise
US5099237A (en) * 1990-07-10 1992-03-24 Research Corporation Technologies, Inc. Method and apparatus for providing maximum rate modulation or compression encoding and decoding
DE69128616T2 (de) * 1990-11-13 1998-08-06 Hewlett Packard Co Gleichstromfreier leitungskode und bit- und rahmensynchronisation für beliebige datenübertragung
US5349349A (en) * 1991-09-30 1994-09-20 Sony Corporation Modulator circuit for a recording for a digital recording medium
US5625644A (en) * 1991-12-20 1997-04-29 Myers; David J. DC balanced 4B/8B binary block code for digital data communications
JPH05284035A (ja) * 1992-03-31 1993-10-29 Sony Corp 情報変換方法
GB2267416B (en) * 1992-05-27 1995-09-20 Sony Broadcast & Communication Coding of digital signals
CA2183355C (fr) * 1994-02-15 2006-05-30 Kornelis Antonie Schouhamer Immink Procede de conversion d'une serie de mots d'information de m-bits en un signal modulee, procede de production d'un support d'enregistrement, dispositif de codage, dispositif de decodage, dispositif d'enregistrement, dispositif de lecture et support d'enregistrement
JPH0846648A (ja) * 1994-07-29 1996-02-16 Okuma Mach Works Ltd 通信装置
WO1998023060A1 (fr) * 1996-11-22 1998-05-28 Sony Corporation Procede et dispositif de transmission des donnees
SE517770C2 (sv) * 1997-01-17 2002-07-16 Ericsson Telefon Ab L M Seriell-parallellomvandlare
KR20010032626A (ko) * 1998-10-01 2001-04-25 요트.게.아. 롤페즈 런 길이 제약을 받는 디지털 정보신호의 발생
TWI268047B (en) * 2000-03-22 2006-12-01 Lg Electronics Inc Method and apparatus for coding information, method and apparatus for decoding coded information, method of fabricating a recording medium, the recording medium and modulated signal
DE10134472B4 (de) * 2001-07-16 2005-12-15 Infineon Technologies Ag Sende- und Empfangsschnittstelle und Verfahren zur Datenübertragung
US6563436B2 (en) * 2001-09-24 2003-05-13 Zenith Electronics Corporation Kerdock coding and decoding system for map data
US6924753B2 (en) * 2001-09-24 2005-08-02 Zenith Electronics Corporation Robust system for transmitting and receiving map data
US6961010B2 (en) * 2003-08-13 2005-11-01 Seagate Technology Llc DC-free code design with increased distance between code words
US8166217B2 (en) * 2004-06-28 2012-04-24 Marvell International Ltd. System and method for reading and writing data using storage controllers
US7292161B2 (en) * 2005-05-31 2007-11-06 International Business Machines Corporation NB/MB coding apparatus and method using both disparity independent and disparity dependent encoded vectors
US7405679B1 (en) 2007-01-30 2008-07-29 International Business Machines Corporation Techniques for 9B10B and 7B8B coding and decoding

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2188369A1 (fr) * 1972-05-04 1974-01-18 Nederlanden Staat
GB2056225A (en) * 1979-07-23 1981-03-11 Sony Corp Code conversion methods
FR2469047A1 (fr) * 1979-11-02 1981-05-08 Sony Corp Procede et appareil permettant de coder un signal numerique de facon qu'il presente une faible composante de courant continu, ainsi que de le decoder
FR2469046A1 (fr) * 1979-10-29 1981-05-08 Sony Corp Procede et appareil perfectionnes permettant de coder un signal numerique de facon qu'il presente une composante de courant continu minimale
EP0066512A1 (fr) * 1981-06-02 1982-12-08 Thomson-Csf Procédé de codage de données binaires, et son application à un système de transfert de signal vidéo numérisé sur bande magnétique

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US3685033A (en) * 1970-08-24 1972-08-15 Honeywell Inc Block encoding for magnetic recording systems
US3906485A (en) * 1973-06-13 1975-09-16 Ibm Data coding circuits for encoded waveform with constrained charge accumulation
JPS5857805B2 (ja) * 1975-11-25 1983-12-22 日本電信電話株式会社 コ−ド変換回路
US4216460A (en) * 1977-07-14 1980-08-05 Independent Broadcasting Authority Transmission and/or recording of digital signals
GB1569076A (en) * 1978-05-18 1980-06-11 Plessey Co Ltd Digital transmission system using discrepancy line coding
JPS55141852A (en) * 1979-04-24 1980-11-06 Sony Corp Data converting system
CA1154539A (fr) * 1980-06-05 1983-09-27 Peter E.K. Chow Convertisseur de code pour systemes de transmission insensibles a la polarite
US4413251A (en) * 1981-07-16 1983-11-01 International Business Machines Corporation Method and apparatus for generating a noiseless sliding block code for a (1,7) channel with rate 2/3

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2188369A1 (fr) * 1972-05-04 1974-01-18 Nederlanden Staat
GB2056225A (en) * 1979-07-23 1981-03-11 Sony Corp Code conversion methods
FR2469046A1 (fr) * 1979-10-29 1981-05-08 Sony Corp Procede et appareil perfectionnes permettant de coder un signal numerique de facon qu'il presente une composante de courant continu minimale
FR2469047A1 (fr) * 1979-11-02 1981-05-08 Sony Corp Procede et appareil permettant de coder un signal numerique de facon qu'il presente une faible composante de courant continu, ainsi que de le decoder
EP0066512A1 (fr) * 1981-06-02 1982-12-08 Thomson-Csf Procédé de codage de données binaires, et son application à un système de transfert de signal vidéo numérisé sur bande magnétique

Also Published As

Publication number Publication date
US4517552A (en) 1985-05-14
GB2099263B (en) 1985-03-20
AT384695B (de) 1987-12-28
DE3219439A1 (de) 1982-12-16
CA1193016A (fr) 1985-09-03
AU8316382A (en) 1982-12-02
FR2507029B1 (fr) 1986-02-28
JPS57195308A (en) 1982-12-01
ATA207682A (de) 1987-05-15
AU548434B2 (en) 1985-12-12
GB2099263A (en) 1982-12-01
NL8202159A (nl) 1982-12-16
DE3219439C2 (fr) 1991-09-12
JPH0544206B2 (fr) 1993-07-05

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