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:
Aug. 16, 2022
Filed:
Mar. 18, 2020
Lexmark International, Inc., Lexington, KY (US);
Scott Richard Castle, Lexington, KY (US);
Gary Allen Denton, Lexington, KY (US);
Robert Henry Muyskens, Lexington, KY (US);
Samuel Leo Rhodus, Lexington, KY (US);
Brant Dennis Nystrom, Lexington, KY (US);
Carl Edmond Sullivan, Stamping Ground, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A physical unclonable function ('PUF') object can be used to encode the geography or region in which device to which the PUF is attached may operate. Disclosed are two potential ways to regionalize a device using a PUF disk: placing the magnetic sensor at a different radius depending on the region or geography intended for sale; and altering the magnetic structure of the disk to magnetically encode the region into the sensor data.