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. 28, 2017
Filed:
Jun. 24, 2016
Applicant:
Lexmark International, Inc., Lexington, KY (US);
Inventors:
Gary Allen Denton, Lexington, KY (US);
James Paul Drummond, Georgetown, KY (US);
Brian Anthony Reichert, Lexington, KY (US);
Randal Scott Williamson, Georgetown, KY (US);
Assignee:
Lexmark International, Inc., Lexington, KY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 21/00 (2006.01); H04L 9/32 (2006.01); G03G 15/08 (2006.01); B41J 2/175 (2006.01); G03G 21/18 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3278 (2013.01); B41J 2/1755 (2013.01); B41J 2/17543 (2013.01); G03G 15/0863 (2013.01); G03G 21/1875 (2013.01); G03G 2221/1823 (2013.01);
Abstract
An elongate physical unclonable function (PUF) is disclosed. The PUF has a longitudinal axis and contains a plurality of small magnetic particles. A much larger magnet is positioned on the longitudinal axis to indicate a home position. A low-cost linear translation mechanism may be used to read the PUF by referencing position information to the home position. Other devices are disclosed.