Banknote identifying machine and banknote identifying method

Details Banknote identifying machine and banknote identifying method Banknote identifying machine and banknote identifying method

2008-01-22

2008-01-22

Mehta, Bhavesh M (Department: 2624)

Image analysis

Applications

Reading bank checks

C382S138000, C382S139000, C382S140000

Reexamination Certificate

active

07321678

ABSTRACT:
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 photosensors61are 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) and3(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.

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patent: 2000-306136 (2000-11-01), None

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