JPS5690370A - Optical card read system - Google Patents

Optical card read system

Info

Publication number
JPS5690370A
JPS5690370A JP16684279A JP16684279A JPS5690370A JP S5690370 A JPS5690370 A JP S5690370A JP 16684279 A JP16684279 A JP 16684279A JP 16684279 A JP16684279 A JP 16684279A JP S5690370 A JPS5690370 A JP S5690370A
Authority
JP
Japan
Prior art keywords
optical
card
light
filter
input 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.)
Pending
Application number
JP16684279A
Other languages
Japanese (ja)
Inventor
Yasukazu Sano
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP16684279A priority Critical patent/JPS5690370A/en
Publication of JPS5690370A publication Critical patent/JPS5690370A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To collate a card input signal with prescribed memory contents of a memory device by branching light, passed through an optical filter at a light source side, to a plurality of optical paths, by passing them through optical filters at a positive light side and by performing photoelectric conversion before outputting them.
CONSTITUTION: In hole 12 formed in optical card 11, optical filter 13 of prescribed combination is equipped. Light 16 from light source 15, after passing through filter 13, is branched into four beams in this case through optical fibers 17A, 17B, 17C, and 17D and respective beams are led to photoelectric converting elements 19A, 19B, 19C, and 19D via photodetection-side optical filters 18A, 18B, 18C, and 18D respectively. When light beam 16 is a white light beam, five kinds of data can be obtained through one hole made in card 11. Those output signals are compared with data previously stored in a memory device which is not shown in the figure so that the input signal of the card is collated with memory contents.
COPYRIGHT: (C)1981,JPO&Japio
JP16684279A 1979-12-24 1979-12-24 Optical card read system Pending JPS5690370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16684279A JPS5690370A (en) 1979-12-24 1979-12-24 Optical card read system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16684279A JPS5690370A (en) 1979-12-24 1979-12-24 Optical card read system

Publications (1)

Publication Number Publication Date
JPS5690370A true JPS5690370A (en) 1981-07-22

Family

ID=15838655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16684279A Pending JPS5690370A (en) 1979-12-24 1979-12-24 Optical card read system

Country Status (1)

Country Link
JP (1) JPS5690370A (en)

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