BE771278A - Appareil d'enregistrement de donnees - Google Patents

Appareil d'enregistrement de donnees

Info

Publication number
BE771278A
BE771278A BE771278A BE771278A BE771278A BE 771278 A BE771278 A BE 771278A BE 771278 A BE771278 A BE 771278A BE 771278 A BE771278 A BE 771278A BE 771278 A BE771278 A BE 771278A
Authority
BE
Belgium
Prior art keywords
recording device
data recording
data
recording
Prior art date
Application number
BE771278A
Other languages
English (en)
Inventor
G E Milligan
Original Assignee
Ncr Co
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 Ncr Co filed Critical Ncr Co
Publication of BE771278A publication Critical patent/BE771278A/fr

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
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
BE771278A 1970-08-17 1971-08-13 Appareil d'enregistrement de donnees BE771278A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6435570A 1970-08-17 1970-08-17

Publications (1)

Publication Number Publication Date
BE771278A true BE771278A (fr) 1971-12-16

Family

ID=22055369

Family Applications (1)

Application Number Title Priority Date Filing Date
BE771278A BE771278A (fr) 1970-08-17 1971-08-13 Appareil d'enregistrement de donnees

Country Status (9)

Country Link
US (1) US3641525A (fr)
JP (1) JPS5315363B1 (fr)
BE (1) BE771278A (fr)
CA (2) CA936953A (fr)
CH (1) CH528798A (fr)
DE (1) DE2140646A1 (fr)
FR (1) FR2103834A5 (fr)
GB (1) GB1317504A (fr)
ZA (1) ZA714765B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032979A (en) * 1972-12-26 1977-06-28 Digital Development Corporation Method and system for encoding and decoding digital data
US3930265A (en) * 1974-06-07 1975-12-30 Vrc California High density magnetic storage system
US3996613A (en) * 1975-10-21 1976-12-07 Sperry Rand Corporation Data recording and transmission apparatus utilizing non-consecutive zero coding
NL7605529A (nl) * 1976-05-24 1977-11-28 Philips Nv Inrichting voor het overdragen van digitale informatie.
US4146909A (en) * 1977-11-21 1979-03-27 International Business Machines Corporation Sync pattern encoding system for run-length limited codes
US4544962A (en) * 1981-07-06 1985-10-01 Matsushita Electric Industrial Co., Ltd. Method and apparatus for processing binary data
US4549167A (en) * 1983-03-03 1985-10-22 Matsushita Electric Industrial Co., Ltd. Method of encoding and decoding binary data
US5453742A (en) * 1993-10-18 1995-09-26 Cox; David F. High density data compression encode/decode circuit apparatus and method of using in local area networks
US20040191573A1 (en) * 2003-03-31 2004-09-30 Fuller Richard M. Magnetic recording media exhibiting decreased tape dropout performance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3226685A (en) * 1961-06-02 1965-12-28 Potter Instrument Co Inc Digital recording systems utilizing ternary, n bit binary and other self-clocking forms
US3274611A (en) * 1963-12-27 1966-09-20 Ibm Binary to ternary code conversion recording system
US3357003A (en) * 1964-12-28 1967-12-05 Ibm Single channel quaternary magnetic recording system
US3500385A (en) * 1967-07-17 1970-03-10 Ibm Coded data storage and retrieval system

Also Published As

Publication number Publication date
CA936953A (en) 1973-11-13
AU3187971A (en) 1973-02-08
ZA714765B (en) 1972-04-26
FR2103834A5 (fr) 1972-04-14
US3641525A (en) 1972-02-08
GB1317504A (en) 1973-05-23
CH528798A (de) 1972-09-30
DE2140646A1 (de) 1972-02-24
CA1051116B (fr) 1979-03-20
JPS5315363B1 (fr) 1978-05-24

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: THE NATIONAL CASH REGISTER CY

Effective date: 19870831