CA2308644A1 - Light-transmitting object identifying apparatus and method - Google Patents
Light-transmitting object identifying apparatus and method Download PDFInfo
- Publication number
- CA2308644A1 CA2308644A1 CA002308644A CA2308644A CA2308644A1 CA 2308644 A1 CA2308644 A1 CA 2308644A1 CA 002308644 A CA002308644 A CA 002308644A CA 2308644 A CA2308644 A CA 2308644A CA 2308644 A1 CA2308644 A1 CA 2308644A1
- Authority
- CA
- Canada
- Prior art keywords
- output
- light sources
- difference
- identification target
- light beams
- 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
- 238000001514 detection method Methods 0.000 abstract 2
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000005070 sampling Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
Abstract
In order to provide an apparatus which has a simple arrangement, can be easily adjusted, and can authenticate a bill, negotiable instrument, and the like with high reliability, adjustment is performed in advance in the absence of an identification target to equalize outputs from a photoelectric converter with respect to light sources A and B that emit light beams having different wavelengths. In this state, the difference in output between detection signals based on the light beams transmitted through an identification target is detected as an output from a high-pass filter.
A sampling circuit samples a signal proportional to the difference in output between the detection values based on the light sources A and B, which is based on this output difference. Authentication is performed on the basis of the sampled value. A deterioration in the light sources is suppressed by periodically setting the interval during which only emission is stopped while the adjusted level is held in the absence of an identification target, instead of continuing adjustment by always causing the light sources A and B to alternately emit light beams.
A sampling circuit samples a signal proportional to the difference in output between the detection values based on the light sources A and B, which is based on this output difference. Authentication is performed on the basis of the sampled value. A deterioration in the light sources is suppressed by periodically setting the interval during which only emission is stopped while the adjusted level is held in the absence of an identification target, instead of continuing adjustment by always causing the light sources A and B to alternately emit light beams.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15011099A JP3866878B2 (en) | 1999-05-28 | 1999-05-28 | Apparatus and method for identifying light transmitting material |
| JP11-150110 | 1999-05-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2308644A1 true CA2308644A1 (en) | 2000-11-28 |
| CA2308644C CA2308644C (en) | 2005-06-07 |
Family
ID=15489717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002308644A Expired - Fee Related CA2308644C (en) | 1999-05-28 | 2000-05-17 | Light-transmitting object identifying apparatus and method |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US6483095B1 (en) |
| EP (2) | EP1840848A3 (en) |
| JP (1) | JP3866878B2 (en) |
| KR (1) | KR100335603B1 (en) |
| CA (1) | CA2308644C (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3866878B2 (en) * | 1999-05-28 | 2007-01-10 | 株式会社日本コンラックス | Apparatus and method for identifying light transmitting material |
| JP3706807B2 (en) * | 2001-01-24 | 2005-10-19 | キヤノン株式会社 | Image input system |
| JP2002245511A (en) | 2001-02-15 | 2002-08-30 | Hitachi Ltd | Method of discriminating paper quality |
| JP2003032435A (en) * | 2001-07-18 | 2003-01-31 | Canon Inc | Image recognizing device |
| JP3839342B2 (en) * | 2002-04-11 | 2006-11-01 | 株式会社リコー | Paper feeding device and image forming apparatus having the same |
| US8718919B2 (en) * | 2002-04-23 | 2014-05-06 | Robert Bosch Gmbh | Method and apparatus for lane recognition for a vehicle |
| JP3669352B2 (en) * | 2002-09-11 | 2005-07-06 | オムロン株式会社 | Photoelectric sensor |
| EP2666404A3 (en) * | 2006-03-22 | 2014-04-23 | The Curators Of The University Of Missouri | Apparatus and method for assessing visual suppression |
| CN101882339B (en) | 2006-09-29 | 2013-01-16 | 环球娱乐株式会社 | Card identifying apparatus |
| US8682056B2 (en) * | 2008-06-30 | 2014-03-25 | Ncr Corporation | Media identification |
| US8255820B2 (en) | 2009-06-09 | 2012-08-28 | Skiff, Llc | Electronic paper display device event tracking |
| DE102009054067A1 (en) * | 2009-11-20 | 2011-05-26 | Osram Opto Semiconductors Gmbh | Light emitting device |
| EP2770483B1 (en) * | 2013-02-20 | 2018-04-25 | Crane Payment Innovations, Inc. | Banknote validator |
| JP2021125835A (en) * | 2020-02-07 | 2021-08-30 | 富士通オプティカルコンポーネンツ株式会社 | Control device and control method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS589478B2 (en) | 1977-11-07 | 1983-02-21 | オムロン株式会社 | Banknote color detection device |
| US4587434A (en) | 1981-10-22 | 1986-05-06 | Cubic Western Data | Currency note validator |
| US4618257A (en) | 1984-01-06 | 1986-10-21 | Standard Change-Makers, Inc. | Color-sensitive currency verifier |
| JPS62111377A (en) | 1985-11-11 | 1987-05-22 | 富士電機株式会社 | Optical identification system for paper money |
| US4769532A (en) | 1986-07-11 | 1988-09-06 | Laurel Bank Machines Co., Ltd. | Apparatus for adjusting optical sensors with threshold memory |
| JP3280289B2 (en) * | 1997-09-10 | 2002-04-30 | 横浜電子工業株式会社 | Securities identification device and method |
| JP3866878B2 (en) * | 1999-05-28 | 2007-01-10 | 株式会社日本コンラックス | Apparatus and method for identifying light transmitting material |
| JP3933826B2 (en) * | 1999-12-14 | 2007-06-20 | 株式会社日本コンラックス | Optical identification device for paper sheets |
-
1999
- 1999-05-28 JP JP15011099A patent/JP3866878B2/en not_active Expired - Fee Related
-
2000
- 2000-05-17 CA CA002308644A patent/CA2308644C/en not_active Expired - Fee Related
- 2000-05-18 US US09/573,383 patent/US6483095B1/en not_active Expired - Fee Related
- 2000-05-23 EP EP07010495A patent/EP1840848A3/en not_active Withdrawn
- 2000-05-23 EP EP00110290A patent/EP1056057A1/en not_active Withdrawn
- 2000-05-27 KR KR1020000028887A patent/KR100335603B1/en active IP Right Grant
-
2002
- 2002-07-11 US US10/194,841 patent/US6642502B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3866878B2 (en) | 2007-01-10 |
| CA2308644C (en) | 2005-06-07 |
| EP1840848A3 (en) | 2008-04-02 |
| KR20010029755A (en) | 2001-04-16 |
| EP1056057A1 (en) | 2000-11-29 |
| EP1840848A2 (en) | 2007-10-03 |
| US6642502B2 (en) | 2003-11-04 |
| KR100335603B1 (en) | 2002-05-08 |
| JP2000339513A (en) | 2000-12-08 |
| US20020175301A1 (en) | 2002-11-28 |
| US6483095B1 (en) | 2002-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150519 |