CA981792A - Optical card reader - Google Patents

Optical card reader

Info

Publication number
CA981792A
CA981792A CA135,660A CA135660A CA981792A CA 981792 A CA981792 A CA 981792A CA 135660 A CA135660 A CA 135660A CA 981792 A CA981792 A CA 981792A
Authority
CA
Canada
Prior art keywords
card reader
optical card
optical
reader
card
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
CA135,660A
Other languages
English (en)
Other versions
CA135660S (en
Inventor
James O. Nicholson
Jerome R. Bickford
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA981792A publication Critical patent/CA981792A/en
Expired 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
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
  • Conveying Record Carriers (AREA)
  • Optical Recording Or Reproduction (AREA)
CA135,660A 1971-03-04 1972-02-28 Optical card reader Expired CA981792A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12094971A 1971-03-04 1971-03-04

Publications (1)

Publication Number Publication Date
CA981792A true CA981792A (en) 1976-01-13

Family

ID=22393463

Family Applications (1)

Application Number Title Priority Date Filing Date
CA135,660A Expired CA981792A (en) 1971-03-04 1972-02-28 Optical card reader

Country Status (7)

Country Link
US (1) US3706887A (it)
JP (1) JPS5249694B1 (it)
CA (1) CA981792A (it)
DE (1) DE2210204C3 (it)
FR (1) FR2127997A5 (it)
GB (1) GB1367856A (it)
IT (1) IT946572B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548633B2 (it) * 1972-05-26 1980-12-06
JPS53132225A (en) * 1977-04-22 1978-11-17 Shinko Electric Co Ltd Method of identifying read value in label reader
US5814723A (en) * 1997-01-24 1998-09-29 Berardinelli; Ted W. Timing light adapter
US5831741A (en) * 1997-06-13 1998-11-03 Xerox Corporation Method and apparatus for detecting holes in copy media

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173000A (en) * 1962-02-21 1965-03-09 Gen Electric System for synchronizing punched card readers
US3518440A (en) * 1967-04-26 1970-06-30 Rochester Datronics Inc Photoelectric sensing apparatus
US3524047A (en) * 1967-08-21 1970-08-11 Ibm Photosensitive sensing system
US3560751A (en) * 1969-02-07 1971-02-02 Ibm Optical mark sensing device

Also Published As

Publication number Publication date
JPS5249694B1 (it) 1977-12-19
GB1367856A (en) 1974-09-25
DE2210204A1 (de) 1972-09-14
FR2127997A5 (it) 1972-10-13
US3706887A (en) 1972-12-19
DE2210204B2 (de) 1974-02-14
DE2210204C3 (de) 1974-09-12
IT946572B (it) 1973-05-21

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