JPS4912161B1 - - Google Patents

Info

Publication number
JPS4912161B1
JPS4912161B1 JP44014341A JP1434169A JPS4912161B1 JP S4912161 B1 JPS4912161 B1 JP S4912161B1 JP 44014341 A JP44014341 A JP 44014341A JP 1434169 A JP1434169 A JP 1434169A JP S4912161 B1 JPS4912161 B1 JP S4912161B1
Authority
JP
Japan
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.)
Pending
Application number
JP44014341A
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 JPS4912161B1 publication Critical patent/JPS4912161B1/ja
Pending 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
    • 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
    • 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
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Magnetic Record Carriers (AREA)
  • Paints Or Removers (AREA)
JP44014341A 1968-02-29 1969-02-27 Pending JPS4912161B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70929668A 1968-02-29 1968-02-29

Publications (1)

Publication Number Publication Date
JPS4912161B1 true JPS4912161B1 (ja) 1974-03-22

Family

ID=24849262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP44014341A Pending JPS4912161B1 (ja) 1968-02-29 1969-02-27

Country Status (7)

Country Link
US (1) US3566356A (ja)
JP (1) JPS4912161B1 (ja)
AT (1) AT296662B (ja)
DE (1) DE1909155C3 (ja)
FR (1) FR2002890A1 (ja)
GB (1) GB1263991A (ja)
NL (1) NL6902631A (ja)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1336132A (en) * 1969-12-03 1973-11-07 Smiths Industries Ltd Access-control equipment and item-dispensing systems including
US3772081A (en) * 1971-07-19 1973-11-13 Minnesota Mining & Mfg Embossable magnetic composite film
US3846843A (en) * 1971-07-19 1974-11-05 Minnesota Mining & Mfg Composite film
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
GB1488483A (en) * 1973-10-23 1977-10-12 Emi Ltd Credit cards and other security documents
US4281043A (en) * 1973-10-31 1981-07-28 Graham Magnetics, Inc. Polymodal magnetic recording media and compositions useful therein
US4114029A (en) * 1974-10-16 1978-09-12 E M I Limited Magnetic recording
JPS58100B2 (ja) * 1975-04-11 1983-01-05 富士写真フイルム株式会社 ジキキロクタイ
US4090662A (en) * 1975-05-28 1978-05-23 Minnesota Mining And Manufacturing Company Tamperproof magnetically readable label
US4239959A (en) * 1977-03-23 1980-12-16 General Kinetics Incorporated Perpetuation of information in magnetically recorded medium
JPS545705A (en) * 1977-06-16 1979-01-17 Fuji Photo Film Co Ltd Double layer magnetic recording medium
DE2950129A1 (de) 1979-12-13 1981-06-19 BASF Corp., New York, N.Y. Verfahren und vorrichtung zur echtheitspruefung von aufzeichnungstraegern, die gegen faelschung zu sichern sind
DE2950174A1 (de) * 1979-12-13 1981-06-19 Basf Ag, 6700 Ludwigshafen Verfahren und vorrichtung zur echtheitspruefung von aufzeichnungstraegern, die gegen faelschung zu sichern sind
US4325087A (en) * 1980-02-29 1982-04-13 Minnesota Mining And Manufacturing Company Magnetic marker for locating a splice within magnetic tape
FR2561427B1 (fr) * 1984-03-13 1986-11-14 Crouzet Sa Procede d'identification de la nature d'un support magnetisable
US4639584A (en) * 1985-07-25 1987-01-27 Adams Robert T Non-alterable magnetic coding
US4743490A (en) * 1986-02-24 1988-05-10 Minnesota Mining And Manufacturing Company Counterfeit-resistant magnetic recording tape
DE4028202A1 (de) * 1990-09-06 1992-03-12 Basf Magnetics Gmbh Transferfolie mit magnetschichten
US6330426B2 (en) * 1994-05-23 2001-12-11 Stephen J. Brown System and method for remote education using a memory card
US5616911A (en) * 1995-05-24 1997-04-01 Eastman Kodak Company Read-only magnetic security pattern
US6241152B1 (en) * 1997-11-14 2001-06-05 Kabushiki Kaisha Toshiba Card processing apparatus and method
US6977114B2 (en) * 2003-08-26 2005-12-20 Ward/Kraft, Inc. Communication substrates having variably applied ferromagnetic material, ferromagnetic composition and a system and method of applying the material to a substrate

Also Published As

Publication number Publication date
GB1263991A (en) 1972-02-16
DE1909155A1 (de) 1969-09-04
FR2002890A1 (ja) 1969-10-31
DE1909155C3 (de) 1974-02-14
NL6902631A (ja) 1969-09-02
DE1909155B2 (de) 1973-07-12
US3566356A (en) 1971-02-23
AT296662B (de) 1972-02-25

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