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FR1347968A - Système d'enregistrement magnétique - Google Patents

Système d'enregistrement magnétique

Info

Publication number
FR1347968A
FR1347968A FR919834A FR919834A FR1347968A FR 1347968 A FR1347968 A FR 1347968A FR 919834 A FR919834 A FR 919834A FR 919834 A FR919834 A FR 919834A FR 1347968 A FR1347968 A FR 1347968A
Authority
FR
France
Prior art keywords
magnetic recording
recording system
magnetic
recording
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
Application number
FR919834A
Other languages
English (en)
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.)
Unisys Corp
Original Assignee
Sperry Rand 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
Priority claimed from US165490A external-priority patent/US3156871A/en
Application filed by Sperry Rand Corp filed Critical Sperry Rand Corp
Priority to FR919834A priority Critical patent/FR1347968A/fr
Application granted granted Critical
Publication of FR1347968A publication Critical patent/FR1347968A/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
    • G11B20/1488—Digital recording or reproducing using self-clocking codes characterised by the use of three levels
    • G11B20/1492—Digital recording or reproducing using self-clocking codes characterised by the use of three levels two levels are symmetric, in respect of the sign to the third level which is "zero"
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR919834A 1962-01-11 1962-12-27 Système d'enregistrement magnétique Expired FR1347968A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR919834A FR1347968A (fr) 1962-01-11 1962-12-27 Système d'enregistrement magnétique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US165490A US3156871A (en) 1962-01-11 1962-01-11 Magnetic recording system employing means for generating correction pulses only between consecutive similar information pulses
FR919834A FR1347968A (fr) 1962-01-11 1962-12-27 Système d'enregistrement magnétique

Publications (1)

Publication Number Publication Date
FR1347968A true FR1347968A (fr) 1964-01-04

Family

ID=26199109

Family Applications (1)

Application Number Title Priority Date Filing Date
FR919834A Expired FR1347968A (fr) 1962-01-11 1962-12-27 Système d'enregistrement magnétique

Country Status (1)

Country Link
FR (1) FR1347968A (fr)

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