BE900451A - Methode de conversion de donnees digitales. - Google Patents

Methode de conversion de donnees digitales.

Info

Publication number
BE900451A
BE900451A BE2/60486A BE2060486A BE900451A BE 900451 A BE900451 A BE 900451A BE 2/60486 A BE2/60486 A BE 2/60486A BE 2060486 A BE2060486 A BE 2060486A BE 900451 A BE900451 A BE 900451A
Authority
BE
Belgium
Prior art keywords
digital data
detection
digital
converting digital
bits
Prior art date
Application number
BE2/60486A
Other languages
English (en)
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 BE900451A publication Critical patent/BE900451A/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Dc Digital Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Une première détection est effectuée pour savoir si la valeur de tous les bits d'ordre pair de la donnée digitale concernée est un zéro digital; une deuxième détection est effectuée pour savoir si la valeur de deux bits de ces bits d'ordre pair détectés est un zéro digital et si un bit précédent d'ordre impair a une composante CC; un signal détecteur est formé selon le résultat de la susdite deuxième détection et la donnée digitale concernée est convertie en le susdit signal digital NRZI-codé, au moyen de ce signal détecteur.
BE2/60486A 1983-08-29 1984-08-29 Methode de conversion de donnees digitales. BE900451A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58157643A JPS6048645A (ja) 1983-08-29 1983-08-29 情報変換装置

Publications (1)

Publication Number Publication Date
BE900451A true BE900451A (fr) 1984-12-17

Family

ID=15654204

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/60486A BE900451A (fr) 1983-08-29 1984-08-29 Methode de conversion de donnees digitales.

Country Status (17)

Country Link
US (1) US4617552A (fr)
JP (1) JPS6048645A (fr)
KR (1) KR920005361B1 (fr)
AT (1) AT394464B (fr)
AU (3) AU576515B2 (fr)
BE (1) BE900451A (fr)
BR (1) BR8404315A (fr)
CA (1) CA1224273A (fr)
CH (2) CH662668A5 (fr)
DE (1) DE3431777A1 (fr)
DK (1) DK168782B1 (fr)
ES (3) ES8703219A1 (fr)
FR (1) FR2551277B1 (fr)
GB (3) GB2146206B (fr)
IT (1) IT1175662B (fr)
NL (1) NL192362C (fr)
SE (3) SE458165B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4833471A (en) * 1984-03-26 1989-05-23 Canon Kabushiki Kaisha Data processing apparatus
US4786890A (en) * 1987-07-28 1988-11-22 International Business Machines Corporation Method and apparatus for implementing a PRML code
JPH01107373A (ja) * 1987-10-21 1989-04-25 Sony Corp データ再生装置
CA2019821C (fr) * 1988-12-28 1995-04-25 Shoichi Takahashi Circuit de conversion de signaux
DE68920739T2 (de) * 1989-08-16 1995-06-29 Ibm Daten-Kodierung für den Sofortstart von PRML-Empfängern.
DE69024045T2 (de) * 1990-08-16 1996-06-20 Ibm Kodierungsverfahren und Vorrichtung zur Pipeline- und Parallelverarbeitung.
JP2691480B2 (ja) * 1991-05-20 1997-12-17 富士通株式会社 ２ｂ４ｂ符号則逆変換におけるディスパリティ検出回路
DE69328642T2 (de) * 1992-02-19 2001-01-11 Mitsubishi Electric Corp Datenumsetzungsverfahren und Aufzeichnungs-/Wiedergabegerät zur Durchführung desselben
JP3224418B2 (ja) * 1992-05-21 2001-10-29 パイオニア株式会社 記録データ列２次変調方法
DE69330957T2 (de) * 1993-11-10 2002-04-04 St Microelectronics Srl Programmierbarer RLL/NRZ-Dekoder für Einzel-/Doppel-Ausgangsdatenströme
US5544178A (en) * 1994-06-10 1996-08-06 Cirrus Logic, Inc. Method and apparatus for encoding data in a PRML class-IV digital communication channel
US5644601A (en) * 1994-10-31 1997-07-01 Symbol Technologies, Inc. Method and apparatus for bias suppression in a VCO based FM transmission system
US6295010B1 (en) * 1998-07-02 2001-09-25 Seagate Technology, Llc 8B/10B encoder system and method
JP2000105981A (ja) * 1998-09-29 2000-04-11 Toshiba Corp データ変換方法および装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562742A (en) * 1966-05-04 1971-02-09 Nippon Electric Co Reversible code converter
US3810111A (en) * 1972-12-26 1974-05-07 Ibm Data coding with stable base line for recording and transmitting binary data
DE2947874C2 (de) * 1979-11-28 1985-03-21 Institut für Rundfunktechnik GmbH, 8000 München Einrichtung zum Aufzeichnen von Videosignalen in digitaler Form auf einen magnetischen Informationsträger sowie Einrichtung zum Abnehmen von in digitaler Form aufgezeichneten Videosignalen auf einem magnetischen Informationsträger
JPS57154610A (en) * 1981-03-20 1982-09-24 Fujitsu General Ltd Digital modulating and demodulating system
JPS57176866A (en) * 1981-04-24 1982-10-30 Sony Corp Encoder of binary signal
GB2109200B (en) * 1981-09-15 1985-07-03 British Broadcasting Corp Digital data encoding
US4486739A (en) * 1982-06-30 1984-12-04 International Business Machines Corporation Byte oriented DC balanced (0,4) 8B/10B partitioned block transmission code

Also Published As

Publication number Publication date
SE467032B (sv) 1992-05-11
DE3431777C2 (fr) 1993-05-06
AU576515B2 (en) 1988-09-01
AU3226184A (en) 1985-03-07
GB2146206A (en) 1985-04-11
GB8421805D0 (en) 1984-10-03
DK410484A (da) 1985-03-01
GB2184924A (en) 1987-07-01
NL192362C (nl) 1997-06-04
BR8404315A (pt) 1985-07-30
DK410484D0 (da) 1984-08-28
ATA276384A (de) 1991-09-15
FR2551277B1 (fr) 1991-06-07
AU1886788A (en) 1988-10-06
CH662668A5 (fr) 1987-10-15
ES8800542A1 (es) 1987-10-16
NL192362B (nl) 1997-02-03
IT8422461A0 (it) 1984-08-29
GB8701506D0 (en) 1987-02-25
AU1886888A (en) 1988-10-06
GB2146206B (en) 1987-12-23
GB2184924B (en) 1988-06-08
AU601295B2 (en) 1990-09-06
NL8402631A (nl) 1985-03-18
GB2184923A (en) 1987-07-01
ES8703219A1 (es) 1987-02-01
ES556794A0 (es) 1987-10-16
GB2184923B (en) 1988-02-24
JPS6048645A (ja) 1985-03-16
SE8802733L (sv) 1988-07-27
DK168782B1 (da) 1994-06-06
ES535476A0 (es) 1987-02-01
DE3431777A1 (de) 1985-03-21
ES8800543A1 (es) 1987-10-16
CA1224273A (fr) 1987-07-14
KR850002136A (ko) 1985-05-06
FR2551277A1 (fr) 1985-03-01
SE467030B (sv) 1992-05-11
JPH0548016B2 (fr) 1993-07-20
AU602100B2 (en) 1990-09-27
SE8404288L (sv) 1985-03-01
IT1175662B (it) 1987-07-15
ES556795A0 (es) 1987-10-16
AT394464B (de) 1992-04-10
SE8802734L (sv) 1988-07-27
SE8802733D0 (sv) 1988-07-27
US4617552A (en) 1986-10-14
SE458165B (sv) 1989-02-27
GB8701505D0 (en) 1987-02-25
SE8404288D0 (sv) 1984-08-29
CH661624A5 (fr) 1987-07-31
KR920005361B1 (ko) 1992-07-02
SE8802734D0 (sv) 1988-07-27

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: *SONY CORP.

Effective date: 20020831