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:
Jul. 12, 2022
Filed:
Jul. 15, 2020
Nuvoton Technology Corporation, Hsin-chu, TW;
Moshe Alon, Tel-Aviv, IL;
Avraham Fishman, Ra'anana, IL;
Dan Morav, Herzliya, IL;
Eyal Cohen, Kfar Saba, IL;
Uri Trichter, Herzliya, IL;
NUVOTON TECHNOLOGY CORPORATION, Hsin-Chu, TW;
Abstract
A computer system includes one or more memory devices, non-resettable memory elements and a processor. The first memory device is configured to store in the one or more memory devices (i) a first version of a multi-stage bootstrap program for bootstrapping the computer system, the bootstrap program including a self-test program that tests the bootstrap program, and (ii) a second version of the bootstrap program known to be trustworthy. The non-resettable memory elements are configured to store non-resettable indicators including at least a self-test-request indicator and a self-test-passed indicator. The processor is configured to retrieve the first version of the bootstrap program, and, if the first version is at least as recent as the trustworthy second version, to bootstrap the computer system securely using the first version and the non-resettable indicators.