JPS57114973A - Scanning mechanism for optical reader - Google Patents

Scanning mechanism for optical reader

Info

Publication number
JPS57114973A
JPS57114973A JP56001194A JP119481A JPS57114973A JP S57114973 A JPS57114973 A JP S57114973A JP 56001194 A JP56001194 A JP 56001194A JP 119481 A JP119481 A JP 119481A JP S57114973 A JPS57114973 A JP S57114973A
Authority
JP
Japan
Prior art keywords
document
photodetector
light emitting
light reflected
scanning mechanism
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.)
Pending
Application number
JP56001194A
Other languages
Japanese (ja)
Inventor
Keiichi Aoyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56001194A priority Critical patent/JPS57114973A/en
Publication of JPS57114973A publication Critical patent/JPS57114973A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10841Particularities of the light-sensitive elements

Abstract

PURPOSE:To obtain a sufficiently accurate digital signal without complicated control and accurate machining accuracy, by detecting a light reflected on a document through sequential light emission of elements in matching with the carriage of the document. CONSTITUTION:When a document 2 is carried on a carrying path 1, a control circuit 12 sequentially illuminates light emitting elements 11 on a light emitting element array 10. A photodetector 20 detects light reflected on the document 2 and outputs an electric signal. Digital signals can be obtained from a visual data expressed on the document 2 by expressing signal levels obtained from the photodetector 20 as ''0'' at a specified level or more and as ''1'' below the level.
JP56001194A 1981-01-09 1981-01-09 Scanning mechanism for optical reader Pending JPS57114973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56001194A JPS57114973A (en) 1981-01-09 1981-01-09 Scanning mechanism for optical reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56001194A JPS57114973A (en) 1981-01-09 1981-01-09 Scanning mechanism for optical reader

Publications (1)

Publication Number Publication Date
JPS57114973A true JPS57114973A (en) 1982-07-17

Family

ID=11494642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56001194A Pending JPS57114973A (en) 1981-01-09 1981-01-09 Scanning mechanism for optical reader

Country Status (1)

Country Link
JP (1) JPS57114973A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62239280A (en) * 1986-04-09 1987-10-20 Hitachi Ltd Optical character reading system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62239280A (en) * 1986-04-09 1987-10-20 Hitachi Ltd Optical character reading system

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