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:
Feb. 02, 2010
Filed:
Jun. 30, 2008
David Goldberg, Palo Alto, CA (US);
William J. Rucklidge, Mountain View, CA (US);
James D. Thornton, Redwood City, CA (US);
David Goldberg, Palo Alto, CA (US);
William J. Rucklidge, Mountain View, CA (US);
James D. Thornton, Redwood City, CA (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
A system and method for generating a signed hardcopy document and authentication thereof is provided. A data representation including digital data is recorded from a hardcopy document. The digital data is compressed using a compression scheme including one of low-fidelity compression and symbol-based compression. An authentication token is generated from the compressed digital data. The authentication token is encoded. A signed hardcopy document including both the encoded authentication token and the data representation is printed.