IT944879B - Perfezionamento nei documenti carte di credito e simili con codificazione magnetica - Google Patents

Perfezionamento nei documenti carte di credito e simili con codificazione magnetica

Info

Publication number
IT944879B
IT944879B IT54021/71A IT5402171A IT944879B IT 944879 B IT944879 B IT 944879B IT 54021/71 A IT54021/71 A IT 54021/71A IT 5402171 A IT5402171 A IT 5402171A IT 944879 B IT944879 B IT 944879B
Authority
IT
Italy
Prior art keywords
documents
improvement
similar
credit cards
magnetic coding
Prior art date
Application number
IT54021/71A
Other languages
English (en)
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Application granted granted Critical
Publication of IT944879B publication Critical patent/IT944879B/it

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
IT54021/71A 1970-11-12 1971-11-11 Perfezionamento nei documenti carte di credito e simili con codificazione magnetica IT944879B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8862170A 1970-11-12 1970-11-12

Publications (1)

Publication Number Publication Date
IT944879B true IT944879B (it) 1973-04-20

Family

ID=22212433

Family Applications (1)

Application Number Title Priority Date Filing Date
IT54021/71A IT944879B (it) 1970-11-12 1971-11-11 Perfezionamento nei documenti carte di credito e simili con codificazione magnetica

Country Status (4)

Country Link
US (1) US3714664A (it)
DE (1) DE2156103A1 (it)
FR (1) FR2114563A5 (it)
IT (1) IT944879B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825927A (en) * 1972-06-14 1974-07-23 R Passien Magnetic discboard
US3858514A (en) * 1972-08-28 1975-01-07 Minnesota Mining & Mfg Data accumulation system providing magnetic toner powder recording
US3873975A (en) * 1973-05-02 1975-03-25 Minnesota Mining & Mfg System and method for authenticating and interrogating a magnetic record medium
US3927393A (en) * 1973-05-02 1975-12-16 Minnesota Mining & Mfg Magnetic record medium authentication system
US4197989A (en) * 1974-10-16 1980-04-15 Emi Limited Magnetic recording
EP0100896B1 (de) * 1982-07-19 1988-01-20 Horstmann-Electronic Magnetcodieranordnung für Werkstückträger
US20080084634A1 (en) * 2006-09-22 2008-04-10 Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Nevada Devices and methods for storing data

Also Published As

Publication number Publication date
US3714664A (en) 1973-01-30
DE2156103A1 (de) 1972-05-18
FR2114563A5 (it) 1972-06-30

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