Document authenticating apparatus and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 3, 2006
Grant Date -
Jun 12, 2003
app pub date -
Feb 7, 2001
filing date -
Feb 9, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A document (e.g. banknote) authenticating apparatus comprises a transport system (32 34, 50, 51) for transporting banknotes. An inspection device (35) is provided past which banknotes are transported by the transport system, the inspection device including a UV source (1) such as a LED and a UV detector (4, 5) arranged to irradiate a banknote and to detect reflected UV respectively. A processor (11) is responsible to the reflected UV to determine the authenticity of the banknote. The inspection device (35) includes a reference surface (3) over which the banknotes are transported in use, the reference surface being exposed to UV radiation from the source (1) in the absence of a banknote so as to generate a reference level signal, and being oriented such that the banknotes are delivered at an acute angle to the surface whereby passage of a banknote across the surface effects a cleaning action on the surface.
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