The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8757493 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 24, 2014

Filed:

Nov. 22, 2010
Applicant:

Russell Paul Cowburn, London, GB;

Inventor:

Russell Paul Cowburn, London, GB;

Assignee:

Ingenia Holdings Limited, Road Town, VG;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 7/10 (2006.01); G02B 5/00 (2006.01); G06F 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method and apparatus for determining a digital signature from an article. A coherent light source directs a beam to illuminate the article and a detector arrangement collects data points from light scattered from many different parts of the article to collect a large number of independent data points, typically 500 or more. By collecting a large number of independent signal contributions specific to many different parts of the article, a digital signature can be computed that is unique to the area of the article that has been scanned. This measurement can be repeated whenever required to test authenticity of the article. Using this method, it has been discovered that it is essentially pointless to go to the effort and expense of making specially prepared tokens, since unique characteristics are measurable a in a straightforward manner from a wide variety of every day articles.


Find Patent Forward Citations

Cowburn, Russell. (2014). System and method for article authentication using encoded signatures (U.S. Patent No. 8757493). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8757493

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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