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.

Date of Patent:
Mar. 31, 2020

Filed:

Jan. 30, 2018
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Thomas Kuenemund, Munich, DE;

Berndt Gammel, Markt-Schwaben, DE;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/75 (2013.01); G06F 21/73 (2013.01); G06F 21/72 (2013.01); H04L 9/32 (2006.01); G11C 7/10 (2006.01); G11C 7/24 (2006.01); H04L 9/08 (2006.01); G09C 1/00 (2006.01); G11C 11/412 (2006.01); G11C 11/419 (2006.01); H03K 19/003 (2006.01);
U.S. Cl.
CPC ...
G06F 21/75 (2013.01); G06F 21/72 (2013.01); G06F 21/73 (2013.01); G09C 1/00 (2013.01); G11C 7/1006 (2013.01); G11C 7/24 (2013.01); G11C 11/412 (2013.01); G11C 11/419 (2013.01); H03K 19/00315 (2013.01); H04L 9/0861 (2013.01); H04L 9/0866 (2013.01); H04L 9/3278 (2013.01);
Abstract

According to one embodiment, a physical uncloneable function circuit for providing a protected output bit is described including at least one physical uncloneable function circuit element configured to output a bit of a physical uncloneable function value, a physical uncloneable function bit output terminal and a coupling circuit connected between the physical uncloneable function circuit element and the physical uncloneable function bit output terminal configured to receive a control signal, supply the bit to the physical uncloneable function bit output terminal for a first state of the control signal and supply the complement of the bit to the physical uncloneable function bit output terminal for a second state of the control signal.


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