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:
Jul. 10, 2012
Filed:
Nov. 13, 2006
James Filreis, Framingham, MA (US);
Eric Burger, Amherst, NH (US);
James Filreis, Framingham, MA (US);
Eric Burger, Amherst, NH (US);
Dialogic Corporation, Montreal, Quebec, CA;
Abstract
A document verification system and method verifies that a content of two documents match based on comparison of an authentication signature generated from each of the documents. The documents may be electronic text documents and may be transformed representations of each other through imaging, printing or image processing. Authentication signatures can be encrypted to enhance security and identify document sources. An authentication signature can be generated for an entirety or portions of the document. Multiple authentication signatures may be generated for each document for selected document regions. The authentication signature can be stored electronically or in hard copy and can be machine-readable to be automatically interpreted by a machine.