AUTHENTICITY VERIFICATION METHOD, PRODUCT, AND APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an authenticity verification method, product, and apparatus.

SOLUTION: A method and apparatus determine a class signature from an article made of paper or cardboard in order to identify a generic type of class to which the article belongs. An optical beam illuminates the article and a detector arrangement collects data points from light scattered from many different parts of the article as the article is scanned by the beam. The class signature derives from intrinsic properties imparted to the paper/cardboard during manufacture by a screen used during dewatering of paper pulp. Detection of the class signature allows manufacturers or particular paper making machines that has made the paper to be identified.

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