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:
Apr. 30, 2013
Filed:
Jan. 04, 2011
Ronald Bruce Blair, Flower Mound, TX (US);
Alexander Parkov, Plano, TX (US);
Ronald Bruce Blair, Flower Mound, TX (US);
Alexander Parkov, Plano, TX (US);
De La Rue North America Inc., Irving, TX (US);
Abstract
Systems and methods for detecting an optically variable material are provided. According to an illustrative embodiment, a method for detecting an optically variable material includes capturing a first image of at least a portion of a document while the at least a portion of the document is subjected to a first electromagnetic radiation from a first angle of incidence, and capturing a second image of at least a portion of the document while the at least a portion of the document is subjected to a second electromagnetic radiation from a second angle of incidence. The first angle of incidence is different from the second angle of incidence. The first and second images are captured by an imaging device that has substantially fixed position. The method also includes comparing the first image to the second image to determine whether an optically variable material is present on the document.