A method and apparatus for authenticating documents...

G - Physics – 07 – D

Patent

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G07D 7/00 (2006.01) G06K 9/00 (2006.01) G06M 3/00 (2006.01) G06M 9/00 (2006.01) G07D 7/12 (2006.01) G07D 9/06 (2006.01)

Patent

CA 2215853

A method and device for authenticating documents comprising an ultraviolet light source illuminating a document to be tested; an ultraviolet light detector generating an output signal responsive to ultraviolet light reflected by the document; and a signal processor receiving the ultraviolet detector output signal and determining the authenticity of the document based upon said output signal.

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