FR2089213A5 - - Google Patents

Info

Publication number
FR2089213A5
FR2089213A5 FR7112024A FR7112024A FR2089213A5 FR 2089213 A5 FR2089213 A5 FR 2089213A5 FR 7112024 A FR7112024 A FR 7112024A FR 7112024 A FR7112024 A FR 7112024A FR 2089213 A5 FR2089213 A5 FR 2089213A5
Authority
FR
France
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
FR7112024A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Application granted granted Critical
Publication of FR2089213A5 publication Critical patent/FR2089213A5/fr
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)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
FR7112024A 1970-04-15 1971-04-06 Expired FR2089213A5 (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR2089213A5 true FR2089213A5 (fr) 1972-01-07

Family

ID=21845991

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7112024A Expired FR2089213A5 (fr) 1970-04-15 1971-04-06

Country Status (12)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485780A1 (fr) * 1980-06-25 1981-12-31 Sundstrand Data Control Procede d'enregistrement de donnees sous forme numerique

Families Citing this family (7)

* 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
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 (fr) * 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485780A1 (fr) * 1980-06-25 1981-12-31 Sundstrand Data Control Procede d'enregistrement de donnees sous forme numerique

Also Published As

Publication number Publication date
DE2117553A1 (de) 1971-10-28
DE2117553B2 (de) 1976-10-28
US3653011A (en) 1972-03-28
CH516199A (de) 1971-11-30
ZA711115B (en) 1971-11-24
CA937676A (en) 1973-11-27
NL7104908A (fr) 1971-10-19
DK137656C (fr) 1978-09-25
JPS4944892B1 (fr) 1974-11-30
SE371906B (fr) 1974-12-02
GB1283016A (en) 1972-07-26
BE765731A (fr) 1971-08-30
DK137656B (da) 1978-04-10
ES389787A1 (es) 1974-04-16

Similar Documents

Publication Publication Date Title
AR204384A1 (fr)
FR2089213A5 (fr)
ATA96471A (fr)
AU2044470A (fr)
AU1146470A (fr)
AU2085370A (fr)
AU2017870A (fr)
AU1336970A (fr)
AU2130570A (fr)
AU1716970A (fr)
AU1326870A (fr)
AR195465A1 (fr)
AU2130770A (fr)
AU1343870A (fr)
AU1689770A (fr)
AU1086670A (fr)
AU1603270A (fr)
AU1235770A (fr)
AU1247570A (fr)
AU1277070A (fr)
AU1969370A (fr)
AU1974970A (fr)
AU1189670A (fr)
ATA672271A (fr)
AU2061170A (fr)

Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse