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:
Feb. 19, 2013
Filed:
Sep. 20, 2011
Applicants:
Ghiath Al-kadi, Eindhoven, NL;
Jan Hoogerbrugge, Helmond, NL;
Massimo Ciacci, 's-hertogenBosch, NL;
Inventors:
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/003 (2006.01);
U.S. Cl.
CPC ...
Abstract
Various embodiments relate to an anti-tampering circuit for a secure device including: a signal delay detector; a clock delay detector; a clock duty cycle detector; and a protection unit that receives an error indication from the signal delay detector, clock delay detector, and the clock duty cycle detector, wherein the protection unit indicates tampering to a secure device upon receiving the error indication.