Method of and system for authenticating an item

Details Method of and system for authenticating an item Method of and system for authenticating an item

2007-12-19

2011-10-25

Azarian, Seyed (Department: 2624)

Image analysis

Applications

C382S275000, C380S201000

Reexamination Certificate

active

08045753

ABSTRACT:
A method of authenticating the identity of an item bearing or associated with a printed security marker, the method comprising:a. printing the security marker with a pattern that encodes at least one of a unique product identifier, a batch identifier, and positional information about a portion of the marker;b. scanning and storing an image of the security marker as printed, said image being taken at sufficiently high resolution to capture artifacts of the printing process;and authentication steps comprising:c. imaging a portion of the marker at sufficiently high resolution to capture the artifacts, andd. querying a data store by providing the image of the portion of the marker or a compressed or parameterized version of the image and data derived from the pattern.

REFERENCES:
patent: 6193156 (2001-02-01), Han et al.
patent: 6456729 (2002-09-01), Moore
patent: 7353994 (2008-04-01), Farrall et al.
patent: 7609872 (2009-10-01), Plutchak et al.
patent: 2005/0093829 (2005-05-01), Shaked et al.
patent: 2005/0234857 (2005-10-01), Plutchak et al.
patent: 2 422 699 (2006-08-01), None

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