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:
May. 03, 2022
Filed:
Jan. 28, 2020
Nuvoton Technology Corporation, Hsin-chu, TW;
Ziv Hershman, Givat Shmuel, IL;
Dan Morav, Herzliya, IL;
NUVOTON TECHNOLOGY CORPORATION, Hsin-Chu, TW;
Abstract
An Integrated Circuit (IC) includes functional circuitry and protection circuitry. The protection circuitry is configured to maintain a counter value, which is indicative of a cumulative amount of hostile attacking attempted on the functional circuitry over a lifetime of the IC, to detect events indicative of suspected hostile attacks on the functional circuitry, to decide, responsively to a detected event, on an update of the counter value depending on a time difference between the detected event and a most recent power-up in the IC, and update the counter value in accordance with the decided update, and to disable at least part of the IC in response to the counter value crossing a threshold.