BE654875A - - Google Patents

Info

Publication number
BE654875A
BE654875A BE654875DA BE654875A BE 654875 A BE654875 A BE 654875A BE 654875D A BE654875D A BE 654875DA BE 654875 A BE654875 A BE 654875A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE654875A publication Critical patent/BE654875A/xx

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)
  • Digital Magnetic Recording (AREA)
BE654875D 1963-11-05 1964-10-27 BE654875A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR952688A FR1387879A (fr) 1963-11-05 1963-11-05 Arrangement de commande d'écriture en modulation de phase

Publications (1)

Publication Number Publication Date
BE654875A true BE654875A (fr) 1965-02-15

Family

ID=8815812

Family Applications (1)

Application Number Title Priority Date Filing Date
BE654875D BE654875A (fr) 1963-11-05 1964-10-27

Country Status (3)

Country Link
US (1) US3345638A (fr)
BE (1) BE654875A (fr)
FR (1) FR1387879A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482228A (en) * 1965-10-21 1969-12-02 Sperry Rand Corp Write circuit for a phase modulation system
US3518648A (en) * 1966-11-07 1970-06-30 Subscription Television Inc High density record and reproduce system
GB1143694A (fr) * 1966-11-14
US3631429A (en) * 1968-11-19 1971-12-28 Pacific Micronetics Inc System for reproducibly storing digital data
US3879342A (en) * 1973-12-28 1975-04-22 Honeywell Inf Systems Pre-recorded digital data compensation system
US4218770A (en) * 1978-09-08 1980-08-19 Bell Telephone Laboratories, Incorporated Delay modulation data transmission system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159840A (en) * 1960-11-14 1964-12-01 Honeywell Inc Pattern sensitivity compensation in high pulse density recording
US3235855A (en) * 1961-10-02 1966-02-15 Honeywell Inc Binary magnetic recording apparatus
US3237176A (en) * 1962-01-26 1966-02-22 Rca Corp Binary recording system
US3299414A (en) * 1964-02-03 1967-01-17 Anelex Corp Phase modulated binary magnetic recording and reproducing system

Also Published As

Publication number Publication date
FR1387879A (fr) 1965-02-05
US3345638A (en) 1967-10-03

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