CA962768A - Electromagnet sensor structure for magnetic cards - Google Patents

Electromagnet sensor structure for magnetic cards

Info

Publication number
CA962768A
CA962768A CA142,265A CA142265A CA962768A CA 962768 A CA962768 A CA 962768A CA 142265 A CA142265 A CA 142265A CA 962768 A CA962768 A CA 962768A
Authority
CA
Canada
Prior art keywords
sensor structure
magnetic cards
electromagnet sensor
electromagnet
cards
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
CA142,265A
Other languages
English (en)
Other versions
CA142265S (en
Inventor
Waldo I. Rogers
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.)
Rusco Industries Inc
Original Assignee
Rusco Industries 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 Rusco Industries Inc filed Critical Rusco Industries Inc
Application granted granted Critical
Publication of CA962768A publication Critical patent/CA962768A/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
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
    • G06K7/087—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors flux-sensitive, e.g. magnetic, detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Measuring Magnetic Variables (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
CA142,265A 1971-05-17 1972-05-16 Electromagnet sensor structure for magnetic cards Expired CA962768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14397971A 1971-05-17 1971-05-17

Publications (1)

Publication Number Publication Date
CA962768A true CA962768A (en) 1975-02-11

Family

ID=22506534

Family Applications (1)

Application Number Title Priority Date Filing Date
CA142,265A Expired CA962768A (en) 1971-05-17 1972-05-16 Electromagnet sensor structure for magnetic cards

Country Status (9)

Country Link
US (1) US3717749A (nl)
JP (1) JPS5529485B1 (nl)
CA (1) CA962768A (nl)
CH (1) CH557072A (nl)
DE (1) DE2223866C3 (nl)
FR (1) FR2137953B1 (nl)
GB (1) GB1378707A (nl)
IT (1) IT961179B (nl)
NL (1) NL174880C (nl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2385154A1 (fr) * 1977-03-25 1978-10-20 Metalimphy Procede et dispositif d'identification d'etiquettes codees
US7025265B2 (en) * 2001-04-10 2006-04-11 Excel Precision Corp. Information card system
US8674894B2 (en) * 2008-07-15 2014-03-18 The Charles Machine Works, Inc. Antenna design
US9474465B2 (en) 2012-06-27 2016-10-25 Ascension Technology Corporation System and method for magnetic position tracking

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2590091A (en) * 1946-04-03 1952-03-25 Remington Rand Inc Magnetic process control
US2559505A (en) * 1948-02-03 1951-07-03 Rca Corp Art of making duplicate magnetic phonograph records
CH405426A (de) * 1961-12-21 1966-01-15 Ibm Magnetkopf zum Aufzeichnen und Ablesen von digitalen Signalen
GB988964A (en) * 1963-03-15 1965-04-14 Thompson Ramo Wooldridge Inc Magnetic field detector
US3521258A (en) * 1963-06-07 1970-07-21 Westinghouse Electric Corp Transducer with thin magnetic strip,drive winding and sense winding
US3419710A (en) * 1965-04-02 1968-12-31 Mkc Electronics Corp Magnetic card reader having sequential indicia sensing means
US3430200A (en) * 1967-06-30 1969-02-25 Walter W Barney Validator apparatus for magnetic credit cards and the like
US3626396A (en) * 1968-10-03 1971-12-07 Ibm Thin-film magnetic recording head

Also Published As

Publication number Publication date
NL174880C (nl) 1984-08-16
US3717749A (en) 1973-02-20
JPS5529485B1 (nl) 1980-08-04
FR2137953B1 (nl) 1976-08-13
DE2223866C3 (de) 1981-11-05
DE2223866B2 (de) 1981-02-05
DE2223866A1 (de) 1972-12-07
NL174880B (nl) 1984-03-16
CH557072A (de) 1974-12-13
FR2137953A1 (nl) 1972-12-29
IT961179B (it) 1973-12-10
GB1378707A (en) 1974-12-27
NL7206624A (nl) 1972-11-21

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