Document authenticating apparatus and method
US7115879B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2001 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | Feb 28, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/12
- WIPO fieldControl
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.