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:
Dec. 26, 2000
Filed:
Oct. 26, 1998
William H Mowry, Jr, Dayton, OH (US);
Albert J Fledderman, Piqua, OH (US);
The Standard Register Company, Dayton, OH (US);
Abstract
A security document is provided comprising: a security image area on the face of the document and a printed security image within the security image area. At least a portion of the security image area is divided into a plurality of image element cells, such that the image element cells define an array of image element cells across the security image area. Each of the image element cells is divided into a plurality of pixels, such that each image element cell defines a cell pixel array. At least a portion of the security image area is divided into a plurality of complementary image element cells, such that the complementary image element cells define an array of complementary image element cells across the security image area. Each of the complementary image element cells is divided into a plurality of pixels, such that each complementary image element cell defines a cell pixel array. The printed security image comprises image elements and complementary image elements. The image elements are positioned uniformly with respect to the array of image element cells and substantially randomly with respect to the pixels within each of the image element cells. The complementary image elements are positioned uniformly with respect to the array of complementary image element cells and substantially randomly with respect to the pixels within each of the complementary image element cells.