JPS5466894A - Banknote color detecting apparauts - Google Patents
Banknote color detecting apparautsInfo
- Publication number
- JPS5466894A JPS5466894A JP13376877A JP13376877A JPS5466894A JP S5466894 A JPS5466894 A JP S5466894A JP 13376877 A JP13376877 A JP 13376877A JP 13376877 A JP13376877 A JP 13376877A JP S5466894 A JPS5466894 A JP S5466894A
- Authority
- JP
- Japan
- Prior art keywords
- color
- banknote
- output
- diodes
- reddish
- 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.)
- Granted
Links
Abstract
PURPOSE: To detect reddish or greenish color of banknotes by combining comparators or the like to two kinds of light emitting diodes.
CONSTITUTION: Red color and green color diodes 6, 5 are connected to switching circuit 2 to which sine wave oscillation output of oscillator circuit 1 is fed. A comparator 18 is connected to a photo detector 7, which is opposing to the both diodes 6, 5 by way of alternating current amplifier 9, detector circuit 10, and amplifiers 16, 17. In this constitution, when a banknote is inserted between the diodes 5, 6 and the photo detector 7, if the color of the banknote is neither reddish nor greenish, the output of the detector circuit 10 is zero level and output signal is not delivered from the comparator 18; if the color of the banknote is either reddish or greenish, the output of the detector circuit 10 shows a positive or negative value, which is compared with the reference level at the comparator 18, and an error signal is delivered from an output terminal 20.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52133768A JPS589478B2 (en) | 1977-11-07 | 1977-11-07 | Banknote color detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52133768A JPS589478B2 (en) | 1977-11-07 | 1977-11-07 | Banknote color detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5466894A true JPS5466894A (en) | 1979-05-29 |
JPS589478B2 JPS589478B2 (en) | 1983-02-21 |
Family
ID=15112502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52133768A Expired JPS589478B2 (en) | 1977-11-07 | 1977-11-07 | Banknote color detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS589478B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5994021A (en) * | 1982-11-22 | 1984-05-30 | Hitachi Maxell Ltd | Color sensor |
US4618257A (en) * | 1984-01-06 | 1986-10-21 | Standard Change-Makers, Inc. | Color-sensitive currency verifier |
EP1056057A1 (en) | 1999-05-28 | 2000-11-29 | Yokohama Denshi Kogyo Kabushiki Kaisha | Light-transmitting object identifying apparatus and method |
-
1977
- 1977-11-07 JP JP52133768A patent/JPS589478B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5994021A (en) * | 1982-11-22 | 1984-05-30 | Hitachi Maxell Ltd | Color sensor |
US4618257A (en) * | 1984-01-06 | 1986-10-21 | Standard Change-Makers, Inc. | Color-sensitive currency verifier |
EP1056057A1 (en) | 1999-05-28 | 2000-11-29 | Yokohama Denshi Kogyo Kabushiki Kaisha | Light-transmitting object identifying apparatus and method |
US6483095B1 (en) | 1999-05-28 | 2002-11-19 | Yokohama Denshi Kogyo Kabushiki Kaisha | Light-transmitting object identifying apparatus and method |
US6642502B2 (en) | 1999-05-28 | 2003-11-04 | Yokohama Denshi Kogyo Kabushiki Kaisha | Light-transmitting object identifying apparatus and method |
Also Published As
Publication number | Publication date |
---|---|
JPS589478B2 (en) | 1983-02-21 |
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