发明名称 |
SUBSTRAT ZUM DRUCKEN |
摘要 |
A substrate for a security document such as a banknote, has physically formed therein identification features which are invisible to the eye but are repetitive so as to be detectable, after scanning, by computer. The features may be arranged in a 2D matrix and be spaced at regular intervals over the substrate. The physical features may be formed by embossing, surface treatment of lacquered papers, impregnation, laser treatment or watermarking. The features enable banknote verification and determination of denomination. Reproduction of the document by printing may be inhibited by subjecting the image data signals to an algorithm which serves as a second control to downgrade or inhibit reproduction. |
申请公布号 |
AT230510(T) |
申请公布日期 |
2003.01.15 |
申请号 |
AT20000900703T |
申请日期 |
2000.01.20 |
申请人 |
THE GOVERNOR AND COMPANY OF THE BANK OF ENGLAND |
发明人 |
FURLEY, ROBERT, JOHN;STONE, ROBERT, GEORGE;VAN BRAECKEL, PAUL |
分类号 |
B41M3/10;B41M3/14;B42D15/00;G07D7/00;G07D7/12;G07D7/20;(IPC1-7):G07D7/00 |
主分类号 |
B41M3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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