Workpiece authentication based upon one or more workpiece...

Image analysis – Applications – Mail processing

Reexamination Certificate

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C382S141000, C340S005860

Reexamination Certificate

active

07035428

ABSTRACT:
A workpiece authentication technique is provided. The technique bases workpiece authentication upon intrinsic physical characteristics of the workpiece, including one or more images of topographical appearance of at least one portion of the workpiece.

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