| 发明名称 |
DETECTING FRAUDULENT WRITING |
| 摘要 |
A method and apparatus for detecting the fraudulent writing of signs. Radiation is caused to impinge on a writing medium (2) and radiation incident on, reflected from and/or transmitted through the writing medium (2) while the sign is being written is detected. The intensity of the detected radiation is monitored to detect the presence of a forgery aid. |
| 申请公布号 |
WO8503156(A1) |
申请公布日期 |
1985.07.18 |
| 申请号 |
WO1985GB00010 |
申请日期 |
1985.01.09 |
| 申请人 |
THE DE LA RUE COMPANY PLC |
发明人 |
ETHERINGTON, HARRY, JAMES, CHARLES;JOSLIN, PAUL, CARTER |
| 分类号 |
E05B49/00;G06K9/00;G07C9/00;G07D7/00;G07D7/06;G07F7/12;(IPC1-7):G07C9/00;G06K9/20 |
主分类号 |
E05B49/00 |
| 代理机构 |
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代理人 |
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