DE1474367B2 - - Google Patents

Info

Publication number
DE1474367B2
DE1474367B2 DE1474367A DE1474367A DE1474367B2 DE 1474367 B2 DE1474367 B2 DE 1474367B2 DE 1474367 A DE1474367 A DE 1474367A DE 1474367 A DE1474367 A DE 1474367A DE 1474367 B2 DE1474367 B2 DE 1474367B2
Authority
DE
Germany
Prior art keywords
magnetic
recording medium
recording
length
tape
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
DE1474367A
Other languages
German (de)
English (en)
Other versions
DE1474367C3 (de
DE1474367A1 (de
Inventor
Walter Rudolph Wappingers Falls N.Y. Hahs (V.St.A.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of DE1474367A1 publication Critical patent/DE1474367A1/de
Publication of DE1474367B2 publication Critical patent/DE1474367B2/de
Application granted granted Critical
Publication of DE1474367C3 publication Critical patent/DE1474367C3/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/20—Moving record carrier backwards or forwards by finite amounts, i.e. backspacing, forward spacing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Control Of Stepping Motors (AREA)
DE1474367A 1964-04-30 1965-04-28 Magnetische Aufzeichnungs- und Wiedergabevorrichtung für digitale Signale Expired DE1474367C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US363723A US3394361A (en) 1964-04-30 1964-04-30 Incremental magnetic recording and sensing system with twin gap head

Publications (3)

Publication Number Publication Date
DE1474367A1 DE1474367A1 (de) 1969-09-25
DE1474367B2 true DE1474367B2 (US07709020-20100504-C00041.png) 1975-01-02
DE1474367C3 DE1474367C3 (de) 1975-08-14

Family

ID=23431435

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1474367A Expired DE1474367C3 (de) 1964-04-30 1965-04-28 Magnetische Aufzeichnungs- und Wiedergabevorrichtung für digitale Signale

Country Status (3)

Country Link
US (1) US3394361A (US07709020-20100504-C00041.png)
DE (1) DE1474367C3 (US07709020-20100504-C00041.png)
GB (1) GB1052572A (US07709020-20100504-C00041.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049893B1 (en) * 1980-10-13 1986-01-15 Bridgestone Tire Company Limited A magnetized tire and method for discriminating such tires from each other

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346876A1 (de) * 1983-12-23 1985-07-11 Siemens AG, 1000 Berlin und 8000 München Kombinierter schreib- und lese-magnetkopf zur senkrechten magnetisierung eines entsprechenden aufzeichnungsmediums
DE3566848D1 (en) * 1984-05-04 1989-01-19 Siemens Ag Thin-layer double-gap magnetic head for a perpendicularly magnetized recording medium
US4897749A (en) * 1988-03-16 1990-01-30 Magnetic Peripherals Inc. Combination probe and ring head for vertical recording

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310790A (en) * 1961-11-21 1967-03-21 Nakamichi Etsuro Perforated magnetic tape recording and reproducing apparatus
US3218618A (en) * 1962-01-30 1965-11-16 Rca Corp Magnetic reading apparatus for demodulating a recorded frequency modulated signal
US3239823A (en) * 1962-05-16 1966-03-08 Ibm Twin gap flux responsive head
US3150358A (en) * 1962-05-31 1964-09-22 Ibm Data detection system for reproducing magnetic binary information

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0049893B1 (en) * 1980-10-13 1986-01-15 Bridgestone Tire Company Limited A magnetized tire and method for discriminating such tires from each other

Also Published As

Publication number Publication date
US3394361A (en) 1968-07-23
GB1052572A (US07709020-20100504-C00041.png)
DE1474367C3 (de) 1975-08-14
DE1474367A1 (de) 1969-09-25

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee