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. 05, 2013
Filed:
Sep. 23, 2009
George E. Corbin, Poughkeepsie, NY (US);
Anthony Grech, Poughkeepsie, NY (US);
Thomas E. Murphy, Jr., Poughkeepsie, NY (US);
Mark Nelson, Poughkeepsie, NY (US);
Kevin H. Peters, Poughkeepsie, NY (US);
George E. Corbin, Poughkeepsie, NY (US);
Anthony Grech, Poughkeepsie, NY (US);
Thomas E. Murphy, Jr., Poughkeepsie, NY (US);
Mark Nelson, Poughkeepsie, NY (US);
Kevin H. Peters, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Computer-implemented methods, systems, and computer program products for document authentication and identification using encoding and decoding are provided. A method includes receiving a digitized document and comparing the digitized document to a set of markers to determine whether the digitized document is an encoded document with one or more characters replaced. In response to determining that the digitized document is encoded, information is extracted from the set of markers using a decoder according to an encoding strategy. The extracted information and the set of markers are compared with data stored in encoding history to authenticate and identify the received digitized document. Markers in the encoded document may be hidden in plain sight, such that the encoding is not readily apparent to a casual observer.