GB1304531A - - Google Patents

Info

Publication number
GB1304531A
GB1304531A GB1304531DA GB1304531A GB 1304531 A GB1304531 A GB 1304531A GB 1304531D A GB1304531D A GB 1304531DA GB 1304531 A GB1304531 A GB 1304531A
Authority
GB
United Kingdom
Prior art keywords
card
magnetic
strip
strips
areas
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
Other languages
English (en)
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 filed Critical
Publication of GB1304531A publication Critical patent/GB1304531A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/086—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
GB1304531D 1970-01-06 1970-01-06 Expired GB1304531A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB58170 1970-01-06

Publications (1)

Publication Number Publication Date
GB1304531A true GB1304531A (enrdf_load_stackoverflow) 1973-01-24

Family

ID=9706903

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1304531D Expired GB1304531A (enrdf_load_stackoverflow) 1970-01-06 1970-01-06

Country Status (1)

Country Link
GB (1) GB1304531A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038596A (en) * 1974-07-04 1977-07-26 E M I Limited Method and apparatus for authenticating a record medium consisting of applying two different strength magnetizing fields and monitoring the remanent fields
EP0025636A3 (en) * 1980-07-07 1981-06-10 General Kinetics, Incorporated Perpetuation of information in magnetically recorded medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038596A (en) * 1974-07-04 1977-07-26 E M I Limited Method and apparatus for authenticating a record medium consisting of applying two different strength magnetizing fields and monitoring the remanent fields
EP0025636A3 (en) * 1980-07-07 1981-06-10 General Kinetics, Incorporated Perpetuation of information in magnetically recorded medium

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees