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.:
Date of Patent:
Sep. 07, 2004
Filed:
Jul. 25, 2000
Applicant:
Inventors:
J. Scott Carr, Beaverton, OR (US);
Burt W. Perry, Lake Oswego, OR (US);
Assignee:
DigiMarc Corporation, Tualatin, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 ; G06F 1/700 ;
U.S. Cl.
CPC ...
G06K 9/00 ; G06F 1/700 ;
Abstract
This disclosure describes a method of making a secure product using data hidden in the product itself and a method of using the hidden data to authenticate the product. The method assigns a product identifier to the product, such as a unique serial number. It also steganographically embeds security data into the product. The security data includes the product identifier (e.g., a hashed version of it). The security data is embedded such that it is machine readable and enables automated authentication of the product by comparing the security data decoded from the product with the product identifier.