GB1494337A - Method and an arrangement for reading coded information from a data carrier - Google Patents

Method and an arrangement for reading coded information from a data carrier

Info

Publication number
GB1494337A
GB1494337A GB48903/74A GB4890374A GB1494337A GB 1494337 A GB1494337 A GB 1494337A GB 48903/74 A GB48903/74 A GB 48903/74A GB 4890374 A GB4890374 A GB 4890374A GB 1494337 A GB1494337 A GB 1494337A
Authority
GB
United Kingdom
Prior art keywords
card
comparator
buffer store
clock
signal
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
GB48903/74A
Other languages
English (en)
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.)
ID KORT AB
Original Assignee
ID KORT AB
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 ID KORT AB filed Critical ID KORT AB
Publication of GB1494337A publication Critical patent/GB1494337A/en
Expired 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
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Character Input (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Credit Cards Or The Like (AREA)
GB48903/74A 1973-11-30 1974-11-12 Method and an arrangement for reading coded information from a data carrier Expired GB1494337A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7316254A SE389209B (sv) 1973-11-30 1973-11-30 Forfarande och anordning for avlesning av kodad information fran en informationsberare, speciellt ett identitetskort

Publications (1)

Publication Number Publication Date
GB1494337A true GB1494337A (en) 1977-12-07

Family

ID=20319252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48903/74A Expired GB1494337A (en) 1973-11-30 1974-11-12 Method and an arrangement for reading coded information from a data carrier

Country Status (8)

Country Link
US (1) US3976857A (enExample)
JP (1) JPS5090255A (enExample)
BR (1) BR7410022A (enExample)
DE (1) DE2456601A1 (enExample)
FR (1) FR2253242B1 (enExample)
GB (1) GB1494337A (enExample)
SE (1) SE389209B (enExample)
SU (1) SU691112A3 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130756A (en) * 1976-10-27 1978-12-19 International Business Machines Corporation Encoding mechanism for holed badge readers
DE2747076C3 (de) * 1977-10-20 1984-10-04 Interflex Datensysteme Gmbh & Co Kg, 7730 Villingen-Schwenningen Optoelektrischer Code-Kartenleser
IT1101623B (it) * 1977-11-22 1985-10-07 Bsg Schalttechnik Dispositivo per serratura per eviatare l'accesso non autorizzato
US4322613A (en) * 1980-04-08 1982-03-30 Vendacopy, Inc. Method for tamper-proofing magnetic stripe card reader
FR2545245B1 (fr) * 1983-04-26 1988-03-11 Lewiner Jacques Perfectionnements aux appareils de lecture des cartes magnetiques de controle d'acces ou analogues et aux cartes correspondantes
USD326446S (en) 1989-07-26 1992-05-26 Wong Curtis G Combined electronic book and CD ROM reader
TWM253011U (en) * 2004-01-30 2004-12-11 King House Technology Co Ltd Luminous credit card

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673389A (en) * 1970-03-02 1972-06-27 Computer Identics Corp Identification and registration system
US3704360A (en) * 1970-04-15 1972-11-28 Bruce R Mcfadden Card reader
US3663800A (en) * 1971-01-21 1972-05-16 Hughes Aircraft Co Optical label reader and decoder
JPS4833531A (enExample) * 1971-09-04 1973-05-11

Also Published As

Publication number Publication date
BR7410022A (pt) 1976-05-25
FR2253242A1 (enExample) 1975-06-27
SE389209B (sv) 1976-10-25
JPS5090255A (enExample) 1975-07-19
SU691112A3 (ru) 1979-10-05
DE2456601A1 (de) 1975-06-05
US3976857A (en) 1976-08-24
FR2253242B1 (enExample) 1980-07-04
SE7316254L (enExample) 1975-06-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee