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:
Mar. 27, 2018
Filed:
Oct. 09, 2015
Applicant:
Lexmark International, Inc., Lexington, KY (US);
Inventors:
James Ronald Booth, Nicholasville, KY (US);
Roger Steven Cannon, Nicholasville, KY (US);
Gary Allen Denton, Lexington, KY (US);
James Paul Drummond, Georgetown, KY (US);
Kelly Ann Killeen, Lexington, KY (US);
Assignee:
Lexmark International, Inc., Lexington, KY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); G11B 5/00 (2006.01); G11C 7/24 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3278 (2013.01); G11B 5/00 (2013.01); G11C 7/24 (2013.01);
Abstract
A rotating magnetic physical unclonable function (PUF) is disclosed. Rotating the PUF enables robust low cost PUF readers. PUF may be incorporated into a user-replaceable supply item for an imaging device. A PUF reader may be incorporated into an imaging device to read the PUF. Other systems and methods are disclosed.