FR2344091B1 - - Google Patents

Info

Publication number
FR2344091B1
FR2344091B1 FR7606830A FR7606830A FR2344091B1 FR 2344091 B1 FR2344091 B1 FR 2344091B1 FR 7606830 A FR7606830 A FR 7606830A FR 7606830 A FR7606830 A FR 7606830A FR 2344091 B1 FR2344091 B1 FR 2344091B1
Authority
FR
France
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
Application number
FR7606830A
Other languages
French (fr)
Other versions
FR2344091A1 (fr
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.)
Radiotechnique Compelec RTC SA
Original Assignee
Radiotechnique Compelec RTC SA
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 Radiotechnique Compelec RTC SA filed Critical Radiotechnique Compelec RTC SA
Priority to FR7606830A priority Critical patent/FR2344091A1/fr
Publication of FR2344091A1 publication Critical patent/FR2344091A1/fr
Application granted granted Critical
Publication of FR2344091B1 publication Critical patent/FR2344091B1/fr
Granted 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
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
FR7606830A 1976-03-10 1976-03-10 Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procede Granted FR2344091A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7606830A FR2344091A1 (fr) 1976-03-10 1976-03-10 Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procede

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7606830A FR2344091A1 (fr) 1976-03-10 1976-03-10 Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procede

Publications (2)

Publication Number Publication Date
FR2344091A1 FR2344091A1 (fr) 1977-10-07
FR2344091B1 true FR2344091B1 (enrdf_load_stackoverflow) 1981-11-27

Family

ID=9170218

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7606830A Granted FR2344091A1 (fr) 1976-03-10 1976-03-10 Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procede

Country Status (1)

Country Link
FR (1) FR2344091A1 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR2344091A1 (fr) 1977-10-07

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Legal Events

Date Code Title Description
ST Notification of lapse