07115879 is referenced by 1 patents and cites 12 patents.

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.

Title
Document authenticating apparatus and method
Application Number
10/181184
Publication Number
7115879 (B2)
Application Date
February 7, 2001
Publication Date
October 3, 2006
Inventor
Bryan James Christophersen
Hants
GB
Jeremy Russel Leach
Southampton
GB
Agent
Oliff & Berridge
Assignee
De la rue International
GB
IPC
G01N 21/23
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