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:
Apr. 14, 2020
Filed:
Sep. 23, 2014
Hewlett-packard Development Company, L.p., Houston, TX (US);
Matthew D Gaubatz, Seattle, WA (US);
Peter J Jlammer, Corvallis, OR (US);
Karl Walters, San Diego, CA (US);
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Abstract
In one example of the disclosure, it is determined, based upon a scan of an overt image included within a printed document, that the image includes a subset area with an expected marking agent response. It is determined, based upon the scan, that a feature of the subset area meets an expected quality threshold. It is determined that a data payload represented by features of the subset area matches expected data for the image. A first measurement of the subset area is made, and it is determined that the image was produced by a printing device based upon a comparison of the first measurement to a second measurement of a sample image printed by the device. Authenticity of the printed document is determined based upon the expected marking agent response, the expected quality threshold, the expected data, and the comparison of measurements.