Security reader for automatic detection of tampering and...

Details Security reader for automatic detection of tampering and... Security reader for automatic detection of tampering and...

2006-03-01

2010-10-26

Toatley, Jr., Gregory J (Department: 2877)

Optics: measuring and testing

Document pattern analysis or verification

C382S135000

Reexamination Certificate

active

07821621

ABSTRACT:
A method and systems for recovering an image and/or information from a document layer(s) is provided. A first light source directs light to the document. A second light source directs light towards a beam splitting mirror which reflects the light towards the document. An image receiver receives the first and second reflected light from the document layer(s). The image receiver passes a signal to a personal computer which processes the received information. Such processing is to establish whether the document includes a retroreflective laminate, a plain polyester laminate, or neither. Additionally, further processing can establish whether the document has been tampered with, altered, or forged.

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