GB1510828A - Methods of erasing magnetic recording media - Google Patents

Methods of erasing magnetic recording media

Info

Publication number
GB1510828A
GB1510828A GB28584/75A GB2858475A GB1510828A GB 1510828 A GB1510828 A GB 1510828A GB 28584/75 A GB28584/75 A GB 28584/75A GB 2858475 A GB2858475 A GB 2858475A GB 1510828 A GB1510828 A GB 1510828A
Authority
GB
United Kingdom
Prior art keywords
medium
magnet
parallel
particles
field
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
GB28584/75A
Other languages
English (en)
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.)
Simrad AS
Original Assignee
Simrad AS
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 Simrad AS filed Critical Simrad AS
Publication of GB1510828A publication Critical patent/GB1510828A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
    • G01D15/12—Magnetic recording elements
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
GB28584/75A 1974-07-08 1975-07-07 Methods of erasing magnetic recording media Expired GB1510828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO742474A NO136553C (no) 1974-07-08 1974-07-08 Fremgangsm}te og apparat for utvisking av magnetisk skrift

Publications (1)

Publication Number Publication Date
GB1510828A true GB1510828A (en) 1978-05-17

Family

ID=19881712

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28584/75A Expired GB1510828A (en) 1974-07-08 1975-07-07 Methods of erasing magnetic recording media

Country Status (5)

Country Link
JP (1) JPS5159610A (enrdf_load_stackoverflow)
DE (1) DE2530119A1 (enrdf_load_stackoverflow)
FR (1) FR2278130A1 (enrdf_load_stackoverflow)
GB (1) GB1510828A (enrdf_load_stackoverflow)
NO (1) NO136553C (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847682A1 (de) * 1978-11-03 1980-05-14 Kienzle Apparate Gmbh Loescheinrichtung fuer einen durch magnetische felder veraenderbaren aufzeichnungstraeger
JPS63196412A (ja) * 1987-02-10 1988-08-15 Bando Chem Ind Ltd スチ−ルコ−ドコンベヤベルトの断線箇所検出装置
CN104210805B (zh) * 2013-05-31 2016-06-01 宝山钢铁股份有限公司 悬挂式防侧偏输送带消磁架装置

Also Published As

Publication number Publication date
FR2278130B1 (enrdf_load_stackoverflow) 1981-01-23
JPS5159610A (enrdf_load_stackoverflow) 1976-05-24
DE2530119A1 (de) 1976-01-29
NO136553B (enrdf_load_stackoverflow) 1977-06-13
NO136553C (no) 1977-09-21
NO742474L (enrdf_load_stackoverflow) 1976-01-09
FR2278130A1 (fr) 1976-02-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee