CA937676A - Magnetic head structure - Google Patents

Magnetic head structure

Info

Publication number
CA937676A
CA937676A CA106299A CA106299A CA937676A CA 937676 A CA937676 A CA 937676A CA 106299 A CA106299 A CA 106299A CA 106299 A CA106299 A CA 106299A CA 937676 A CA937676 A CA 937676A
Authority
CA
Canada
Prior art keywords
magnetic head
head structure
magnetic
head
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.)
Expired
Application number
CA106299A
Other languages
English (en)
Inventor
P. Donohue James
A. Bange Donald
J. Miyata John
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.)
National Cash Register Co
Original Assignee
National Cash Register 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 National Cash Register Co filed Critical National Cash Register Co
Application granted granted Critical
Publication of CA937676A publication Critical patent/CA937676A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • 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
    • G11B5/17—Construction or disposition of windings
    • 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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Signal Processing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
CA106299A 1970-04-15 1971-02-25 Magnetic head structure Expired CA937676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2887370A 1970-04-15 1970-04-15

Publications (1)

Publication Number Publication Date
CA937676A true CA937676A (en) 1973-11-27

Family

ID=21845991

Family Applications (1)

Application Number Title Priority Date Filing Date
CA106299A Expired CA937676A (en) 1970-04-15 1971-02-25 Magnetic head structure

Country Status (12)

Country Link
US (1) US3653011A (xx)
JP (1) JPS4944892B1 (xx)
BE (1) BE765731A (xx)
CA (1) CA937676A (xx)
CH (1) CH516199A (xx)
DK (1) DK137656B (xx)
ES (1) ES389787A1 (xx)
FR (1) FR2089213A5 (xx)
GB (1) GB1283016A (xx)
NL (1) NL7104908A (xx)
SE (1) SE371906B (xx)
ZA (1) ZA711115B (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3761905A (en) * 1971-08-20 1973-09-25 Information Storage Systems Disc pack defect detection system
US3801968A (en) * 1972-01-10 1974-04-02 Bell & Howell Co Write-read checker
US3805284A (en) * 1972-09-18 1974-04-16 Burroughs Corp Digital data copy duplication method and apparatus utilizing bit to bit data verification
US3979080A (en) * 1975-03-27 1976-09-07 Westinghouse Electric Corporation Analog automatic slowdown system
JPS545417A (en) * 1977-06-14 1979-01-16 Tdk Corp Magnetic head
GB2136614B (en) * 1980-06-25 1985-06-05 Sundstrand Data Control Recording digital data
DE3045226A1 (de) * 1980-12-01 1982-07-01 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und schaltungsanordnung zur magnetischen speicherung digital codierter signale
US4644432A (en) * 1985-01-28 1987-02-17 International Business Machines Three pole single element magnetic read/write head

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL263324A (xx) * 1961-04-07
US3150358A (en) * 1962-05-31 1964-09-22 Ibm Data detection system for reproducing magnetic binary information
US3359548A (en) * 1964-03-27 1967-12-19 Ampex Magnetic recording and verifying system
US3510857A (en) * 1967-06-16 1970-05-05 J C Kennedy Co Tape recording error check system
US3535704A (en) * 1967-11-07 1970-10-20 Bell Telephone Labor Inc Verification of magnetic recording
US3678972A (en) * 1970-03-24 1972-07-25 Parker Hannifin Corp Fluid transfer device
US3854524A (en) * 1972-09-07 1974-12-17 Atomic Energy Commission Thermal switch-heat pipe

Also Published As

Publication number Publication date
DE2117553A1 (de) 1971-10-28
NL7104908A (xx) 1971-10-19
GB1283016A (en) 1972-07-26
CH516199A (de) 1971-11-30
ES389787A1 (es) 1974-04-16
DE2117553B2 (de) 1976-10-28
BE765731A (fr) 1971-08-30
JPS4944892B1 (xx) 1974-11-30
FR2089213A5 (xx) 1972-01-07
DK137656B (da) 1978-04-10
DK137656C (xx) 1978-09-25
SE371906B (xx) 1974-12-02
US3653011A (en) 1972-03-28
ZA711115B (en) 1971-11-24

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