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:
Nov. 04, 2008
Filed:
Nov. 24, 2003
Applicants:
Bertrand Haas, New Haven, CT (US);
Robert A. Cordery, Danbury, CT (US);
Claude Zeller, Monroe, CT (US);
Inventors:
Bertrand Haas, New Haven, CT (US);
Robert A. Cordery, Danbury, CT (US);
Claude Zeller, Monroe, CT (US);
Assignee:
Pitney Bowes Inc., Stamford, CT (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 15/00 (2006.01); G06F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is concerned with inclusion of a 'fragile watermark' in an original printed document to aid in a determination whether a document under examination is an original or a copy. The watermark may be applied by making small tonal adjustments on a pixel block by pixel block basis in data used to generate the original document. Documents to be verified may then be examined on a block-by-block basis after scanning.