CA981792A - Optical card reader - Google Patents

Optical card reader

Info

Publication number: CA981792A
Authority: CA; Canada
Prior art keywords: card reader; optical card; optical; reader; card
Prior art date: 1971-03-04
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.)

1971-03-04

Filing date

1972-02-28

Publication date

1976-01-13

1972-02-28 Application filed by International Business Machines Corp filed Critical International Business Machines Corp

1976-01-13 Application granted granted Critical

1976-01-13 Publication of CA981792A publication Critical patent/CA981792A/en

Status 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

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)
Optical Recording Or Reproduction (AREA)
Conveying Record Carriers (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

1971
- 1971-03-04 US US120949A patent/US3706887A/en not_active Expired - Lifetime
1972
- 1972-01-14 IT IT19362/72A patent/IT946572B/it active
- 1972-02-16 JP JP47015730A patent/JPS5249694B1/ja active Pending
- 1972-02-24 GB GB852872A patent/GB1367856A/en not_active Expired
- 1972-02-28 CA CA135,660A patent/CA981792A/en not_active Expired
- 1972-02-29 FR FR7207617A patent/FR2127997A5/fr not_active Expired
- 1972-03-03 DE DE2210204A patent/DE2210204C3/de not_active Expired

Also Published As

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

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