BE726751A - - Google Patents

Info

Publication number
BE726751A
BE726751A BE726751DA BE726751A BE 726751 A BE726751 A BE 726751A BE 726751D A BE726751D A BE 726751DA BE 726751 A BE726751 A BE 726751A
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 BE726751A publication Critical patent/BE726751A/xx

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1215Formatting, e.g. arrangement of data block or words on the record carriers on cards
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/14Digital recording or reproducing using self-clocking codes
    • G11B20/1403Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407Digital 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
    • G11B20/1419Digital 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/18Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816Testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Credit Cards Or The Like (AREA)
  • Optical Recording Or Reproduction (AREA)
BE726751D 1968-01-15 1969-01-10 BE726751A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69771668A 1968-01-15 1968-01-15

Publications (1)

Publication Number Publication Date
BE726751A true BE726751A (ja) 1969-06-16

Family

ID=24802252

Family Applications (1)

Application Number Title Priority Date Filing Date
BE726751D BE726751A (ja) 1968-01-15 1969-01-10

Country Status (9)

Country Link
US (1) US3523287A (ja)
BE (1) BE726751A (ja)
CH (1) CH489084A (ja)
DE (1) DE1900935C3 (ja)
ES (1) ES361749A1 (ja)
FR (1) FR96239E (ja)
GB (1) GB1210586A (ja)
NL (1) NL160962C (ja)
SE (1) SE365054B (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725861A (en) * 1971-11-10 1973-04-03 Ibm Apparatus and method for establishing exact record reorientation after error condition in a data storage subsystem

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE637156A (ja) * 1962-09-13

Also Published As

Publication number Publication date
US3523287A (en) 1970-08-04
ES361749A1 (es) 1970-11-16
NL160962B (nl) 1979-07-16
SE365054B (ja) 1974-03-11
DE1900935A1 (de) 1969-08-07
CH489084A (de) 1970-04-15
GB1210586A (en) 1970-10-28
NL6900383A (ja) 1969-07-17
FR96239E (fr) 1972-05-19
DE1900935C3 (de) 1974-03-28
NL160962C (nl) 1979-12-17
DE1900935B2 (de) 1973-08-16

Similar Documents

Publication Publication Date Title
AU1946070A (ja)
AU2374870A (ja)
FR1601336A (ja)
FR2004461A1 (ja)
AU2952567A (ja)
AU2581067A (ja)
AU2580267A (ja)
AR203075Q (ja)
BE726250A (ja)
BE714083A (ja)
AU2496167A (ja)
SE365054B (ja)
AU2889368A (ja)
BE728721A (ja)
BE728389A (ja)
BE727604A (ja)
BE727294A (ja)
BE727070A (ja)
BE708888A (ja)
BE726062A (ja)
BE723360A (ja)
BE717906A (ja)
BE717375A (ja)
BE709496A (ja)
BE709484A (ja)