JPS5690370A - Optical card read system - Google Patents
Optical card read systemInfo
- 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
Links
- 230000003287 optical effect Effects 0.000 title abstract 7
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 abstract 1
Landscapes
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
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
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) |
-
1979
- 1979-12-24 JP JP16684279A patent/JPS5690370A/en active Pending
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