发明名称 |
Banknote identifying machine and banknote identifying method |
摘要 |
A banknote identifying machine and method for testing a banknote for genuineness stably without being affected by a sensor or contamination on the banknote. Transmission photosensors 61 are moved over a banknote to be tested to scan the banknote with a light beam along reading lines L to obtain patterns of an amount of transmitted light through the banknote (FIGS. 3(b) and 3(c)). Patterns (1a, 1b) of an amount of transmitted light corresponding to watermark portions are evaluated with maximum values (11, 12) of patterns of an amount of transmitted light corresponding to ordinary design portions other than the watermarks to determine whether or not there is any watermark in the banknote and to authenticate it.
|
申请公布号 |
US2004151359(A1) |
申请公布日期 |
2004.08.05 |
申请号 |
US20030470745 |
申请日期 |
2003.08.11 |
申请人 |
KABUSHIKI KAISHA NIPPON CONLUX |
发明人 |
ITAKO EIJI |
分类号 |
G07D7/00;G07D7/12;G07D7/20;(IPC1-7):G06K9/00 |
主分类号 |
G07D7/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|