CA929661A - Demagnetizing circuit - Google Patents

Demagnetizing circuit

Info

Publication number
CA929661A
CA929661A CA088494A CA88494A CA929661A CA 929661 A CA929661 A CA 929661A CA 088494 A CA088494 A CA 088494A CA 88494 A CA88494 A CA 88494A CA 929661 A CA929661 A CA 929661A
Authority
CA
Canada
Prior art keywords
demagnetizing circuit
demagnetizing
circuit
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
CA088494A
Inventor
Frank H. Blitchington, Jr.
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA929661A publication Critical patent/CA929661A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/02—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using magnetic or inductive elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
CA088494A 1969-11-10 1970-07-17 Demagnetizing circuit Expired CA929661A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87663769A 1969-11-10 1969-11-10

Publications (1)

Publication Number Publication Date
CA929661A true CA929661A (en) 1973-07-03

Family

ID=25368227

Family Applications (1)

Application Number Title Priority Date Filing Date
CA088494A Expired CA929661A (en) 1969-11-10 1970-07-17 Demagnetizing circuit

Country Status (2)

Country Link
US (1) US3689904A (en)
CA (1) CA929661A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803634A (en) * 1971-06-25 1974-04-09 Magnetic Printing Co Ltd Magnetic pattern printing method
DE2516345C2 (en) * 1975-04-15 1984-07-19 Kienzle Apparate Gmbh, 7730 Villingen-Schwenningen Erasing device for a recording medium that can be changed by magnetic fields
US4504874A (en) * 1981-07-23 1985-03-12 Olympus Optical Co., Ltd. Tape recorder
US6767382B2 (en) 1999-04-08 2004-07-27 Mawar Malaysian Limited Aluminium processing apparatus and process for separating aluminium from a mixture of aluminium and aluminium dross

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2743492A (en) * 1953-04-20 1956-05-01 Allegheny Ludlum Steel Apparatus for controlling the flow of molten metal
US3218396A (en) * 1962-08-01 1965-11-16 Minnesota Mining & Mfg Transducing system
US3346703A (en) * 1964-03-13 1967-10-10 Minnesota Mining & Mfg Two track transducing system with means to extend dynamic range
US3218620A (en) * 1964-11-16 1965-11-16 Minnesota Mining & Mfg Two track reproducing system with two recorded levels utilizing a variable impedance element
US3450933A (en) * 1965-09-27 1969-06-17 Packard Bell Electronics Corp Light-activated degaussing circuit

Also Published As

Publication number Publication date
US3689904A (en) 1972-09-05

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