DE1574522C3 - Löscheinrichtung für bandförmige magnetische Aufzeichnungsträger mit einem Permanentmagneten - Google Patents

Löscheinrichtung für bandförmige magnetische Aufzeichnungsträger mit einem Permanentmagneten

Info

Publication number
DE1574522C3
DE1574522C3 DE1574522A DEN0032086A DE1574522C3 DE 1574522 C3 DE1574522 C3 DE 1574522C3 DE 1574522 A DE1574522 A DE 1574522A DE N0032086 A DEN0032086 A DE N0032086A DE 1574522 C3 DE1574522 C3 DE 1574522C3
Authority
DE
Germany
Prior art keywords
permanent magnet
recording medium
tape
boundary surface
extinguishing device
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
DE1574522A
Other languages
German (de)
English (en)
Other versions
DE1574522A1 (de
DE1574522B2 (de
Inventor
Horst Wien Althuber
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE1574522A1 publication Critical patent/DE1574522A1/de
Publication of DE1574522B2 publication Critical patent/DE1574522B2/de
Application granted granted Critical
Publication of DE1574522C3 publication Critical patent/DE1574522C3/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
    • 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
    • G11B15/60—Guiding record carrier
    • G11B15/62—Maintaining desired spacing between record carrier and head
    • 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
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/04—Preventing, inhibiting, or warning against accidental erasing or double recording
    • 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
    • G11B5/325—Erasing heads using permanent magnets
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Record Carriers (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Magnetic Heads (AREA)
DE1574522A 1967-02-28 1968-02-07 Löscheinrichtung für bandförmige magnetische Aufzeichnungsträger mit einem Permanentmagneten Expired DE1574522C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT194667A AT274416B (de) 1967-02-28 1967-02-28 Permanentmagnetische Löscheinrichtung für magnetisierbare Aufzeichnungsträger

Publications (3)

Publication Number Publication Date
DE1574522A1 DE1574522A1 (de) 1971-07-29
DE1574522B2 DE1574522B2 (de) 1977-10-06
DE1574522C3 true DE1574522C3 (de) 1978-06-01

Family

ID=3524448

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1574522A Expired DE1574522C3 (de) 1967-02-28 1968-02-07 Löscheinrichtung für bandförmige magnetische Aufzeichnungsträger mit einem Permanentmagneten

Country Status (8)

Country Link
US (1) US3548113A (US20110158925A1-20110630-C00042.png)
AT (1) AT274416B (US20110158925A1-20110630-C00042.png)
BE (1) BE711302A (US20110158925A1-20110630-C00042.png)
DE (1) DE1574522C3 (US20110158925A1-20110630-C00042.png)
ES (1) ES350940A1 (US20110158925A1-20110630-C00042.png)
FR (1) FR1556580A (US20110158925A1-20110630-C00042.png)
GB (1) GB1170706A (US20110158925A1-20110630-C00042.png)
NL (1) NL156527B (US20110158925A1-20110630-C00042.png)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS549044B1 (US20110158925A1-20110630-C00042.png) * 1970-05-21 1979-04-20
GB1291615A (en) * 1970-05-26 1972-10-04 Int Computers Ltd Improvements in or relating to magnetic recording apparatus
US3800327A (en) * 1971-07-10 1974-03-26 Sony Corp Magnetic recording and reproducing apparatus with erasing head and a tape guide mounted on a movable carriage
US3792490A (en) * 1972-02-01 1974-02-12 V Wigal Miniature sound recording and reproducing device
JPS49104612A (US20110158925A1-20110630-C00042.png) * 1973-01-10 1974-10-03
GB1432534A (en) * 1973-04-18 1976-04-22 Uher Werke Muenchen Magnetic tape cassette recorder apparatus
US3909120A (en) * 1973-06-28 1975-09-30 Polaroid Corp Electromagnetic and electrostatic recording shield
JPS52121310A (en) * 1976-04-06 1977-10-12 Olympus Optical Co Ltd Erase head using permanent magnet and its magnetizing method
US4142221A (en) * 1977-03-31 1979-02-27 International Tapetronics Corp. NAB tape cartridge eraser and splice finder
US4346426A (en) * 1981-01-07 1982-08-24 Fluxcom, Inc. Magnetic tape de-gausser and method of erasing magnetic recording tape
DE8233253U1 (de) * 1982-11-26 1983-06-30 Basf Ag, 6700 Ludwigshafen Bandkassette mit einem aufzeichnungstraeger mit magnetspur(en)
US7986485B2 (en) * 2009-03-31 2011-07-26 Oracle America, Inc. Servo writer providing a pre-writing, longitudinal magnetic bias in a magnetically unoriented tape supply

Also Published As

Publication number Publication date
NL6802517A (US20110158925A1-20110630-C00042.png) 1968-08-29
NL156527B (nl) 1978-04-17
ES350940A1 (es) 1969-05-16
DE1574522A1 (de) 1971-07-29
GB1170706A (en) 1969-11-12
FR1556580A (US20110158925A1-20110630-C00042.png) 1969-02-07
BE711302A (US20110158925A1-20110630-C00042.png) 1968-08-26
US3548113A (en) 1970-12-15
AT274416B (de) 1969-09-25
DE1574522B2 (de) 1977-10-06

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee
8328 Change in the person/name/address of the agent

Free format text: DERZEIT KEIN VERTRETER BESTELLT