BE740030A - - Google Patents

Info

Publication number
BE740030A
BE740030A BE740030DA BE740030A BE 740030 A BE740030 A BE 740030A BE 740030D A BE740030D A BE 740030DA BE 740030 A BE740030 A BE 740030A
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 BE740030A publication Critical patent/BE740030A/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)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
BE740030D 1968-10-10 1969-10-09 BE740030A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76653168A 1968-10-10 1968-10-10

Publications (1)

Publication Number Publication Date
BE740030A true BE740030A (ko) 1970-04-09

Family

ID=25076722

Family Applications (1)

Application Number Title Priority Date Filing Date
BE740030D BE740030A (ko) 1968-10-10 1969-10-09

Country Status (5)

Country Link
US (1) US3646546A (ko)
BE (1) BE740030A (ko)
DE (1) DE1950924A1 (ko)
FR (1) FR2020343A1 (ko)
NL (1) NL6915397A (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3737895A (en) * 1971-08-02 1973-06-05 Edmac Ass Inc Bi-phase data recorder
US3806816A (en) * 1972-11-08 1974-04-23 Nasa Pulse code modulated signal synchronizer
US3982195A (en) * 1975-05-29 1976-09-21 Teletype Corporation Method and apparatus for decoding diphase signals
CH638357A5 (de) * 1979-07-06 1983-09-15 Siemens Ag Albis Schaltungsanordnung zur automatischen bitratenerkennung an einem flankencodierten informationssignal.
US4606051A (en) * 1983-11-10 1986-08-12 Universal Data Systems, Inc. QPSK demodulator with I and Q post-detection data correction
US4769723A (en) * 1985-12-30 1988-09-06 Mcdonnel Douglas Helicopter Co. Multiplexed bus data encoder and decoder for facilitating data recording

Also Published As

Publication number Publication date
FR2020343A1 (ko) 1970-07-10
NL6915397A (ko) 1970-04-14
DE1950924A1 (de) 1970-04-16
US3646546A (en) 1972-02-29

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