CA1325849C - Support d'enregistrement magnetique et methode pour determiner si ce support est valide - Google Patents

Support d'enregistrement magnetique et methode pour determiner si ce support est valide

Info

Publication number
CA1325849C
CA1325849C CA000564281A CA564281A CA1325849C CA 1325849 C CA1325849 C CA 1325849C CA 000564281 A CA000564281 A CA 000564281A CA 564281 A CA564281 A CA 564281A CA 1325849 C CA1325849 C CA 1325849C
Authority
CA
Canada
Prior art keywords
magnetic
code
recording medium
truth
medium
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 - Fee Related
Application number
CA000564281A
Other languages
English (en)
Inventor
Yoshihiko Nakahara
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.)
Kyodo Printing Co Ltd
Original Assignee
Kyodo Printing Co Ltd
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
Priority to AU15922/88A priority Critical patent/AU624786B2/en
Priority to EP88903371A priority patent/EP0412156B1/fr
Priority to PCT/JP1988/000369 priority patent/WO1989009981A1/fr
Priority claimed from PCT/JP1988/000369 external-priority patent/WO1989009981A1/fr
Application filed by Kyodo Printing Co Ltd filed Critical Kyodo Printing Co Ltd
Priority to CA000564281A priority patent/CA1325849C/fr
Priority to US07/818,747 priority patent/US5160833A/en
Application granted granted Critical
Publication of CA1325849C publication Critical patent/CA1325849C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
    • G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
    • G06K19/12—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by magnetic means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K7/083—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 inductive
    • G06K7/084—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 inductive sensing magnetic material by relative movement detecting flux changes without altering its magnetised state

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
CA000564281A 1986-11-13 1988-04-15 Support d'enregistrement magnetique et methode pour determiner si ce support est valide Expired - Fee Related CA1325849C (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU15922/88A AU624786B2 (en) 1988-04-14 1988-04-14 Magnetic recording medium and truth determination method therefor
EP88903371A EP0412156B1 (fr) 1988-04-14 1988-04-14 Procede de determination de la validite d'un support d'enregistrement magnetique
PCT/JP1988/000369 WO1989009981A1 (fr) 1988-04-14 1988-04-14 Support d'enregistrement magnetique et procede de determination du centrage de precision
CA000564281A CA1325849C (fr) 1988-04-14 1988-04-15 Support d'enregistrement magnetique et methode pour determiner si ce support est valide
US07/818,747 US5160833A (en) 1986-11-13 1992-01-07 Magnetic recording medium having authenticating poles at its edge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP1988/000369 WO1989009981A1 (fr) 1988-04-14 1988-04-14 Support d'enregistrement magnetique et procede de determination du centrage de precision
CA000564281A CA1325849C (fr) 1988-04-14 1988-04-15 Support d'enregistrement magnetique et methode pour determiner si ce support est valide

Publications (1)

Publication Number Publication Date
CA1325849C true CA1325849C (fr) 1994-01-04

Family

ID=4137846

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000564281A Expired - Fee Related CA1325849C (fr) 1986-11-13 1988-04-15 Support d'enregistrement magnetique et methode pour determiner si ce support est valide

Country Status (1)

Country Link
CA (1) CA1325849C (fr)

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Legal Events

Date Code Title Description
MKLA Lapsed