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:
Nov. 08, 2016
Filed:
Nov. 26, 2014
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Brian Marc Rosenberg, San Diego, CA (US);
Xiaochun Zhu, San Diego, CA (US);
Xu Guo, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/00 (2006.01); G11C 11/16 (2006.01); G09C 1/00 (2006.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01); G11C 16/20 (2006.01);
U.S. Cl.
CPC ...
G11C 11/1673 (2013.01); G09C 1/00 (2013.01); G11C 11/1675 (2013.01); G11C 11/1695 (2013.01); H04L 9/0866 (2013.01); H04L 9/3278 (2013.01); G11C 16/20 (2013.01);
Abstract
A method includes coupling a first magnetic tunnel junction (MTJ) element and a second MTJ element to a comparison circuit. The method also includes comparing, at the comparison circuit, a first resistance of the first MTJ element to a second resistance of the second MTJ element. The method further includes generating a first physical unclonable function (PUF) output bit based on a result of comparing the first resistance to the second resistance.