ZA714765B - Data recording apparatus - Google Patents

Data recording apparatus

Info

Publication number
ZA714765B
ZA714765B ZA714765A ZA714765A ZA714765B ZA 714765 B ZA714765 B ZA 714765B ZA 714765 A ZA714765 A ZA 714765A ZA 714765 A ZA714765 A ZA 714765A ZA 714765 B ZA714765 B ZA 714765B
Authority
ZA
South Africa
Prior art keywords
recording apparatus
data recording
data
recording
Prior art date
Application number
ZA714765A
Other languages
English (en)
Inventor
G Milligan
Original Assignee
Ncr
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 filed Critical Ncr
Publication of ZA714765B publication Critical patent/ZA714765B/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
    • G11B20/1423—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)
ZA714765A 1970-08-17 1971-07-19 Data recording apparatus ZA714765B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ZA714765B true ZA714765B (en) 1972-04-26

Family

ID=22055369

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA714765A ZA714765B (en) 1970-08-17 1971-07-19 Data recording apparatus

Country Status (9)

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

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
DE3407832C2 (de) * 1983-03-03 1994-08-11 Matsushita Electric Ind Co Ltd Verfahren zum Kodieren und Dekodieren binärer Daten
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
FR2103834A5 (xx) 1972-04-14
AU3187971A (en) 1973-02-08
DE2140646A1 (de) 1972-02-24
GB1317504A (en) 1973-05-23
CH528798A (de) 1972-09-30
CA1051116B (en) 1979-03-20
JPS5315363B1 (xx) 1978-05-24
CA936953A (en) 1973-11-13
BE771278A (fr) 1971-12-16
US3641525A (en) 1972-02-08

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