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:
Jun. 12, 2012
Filed:
Aug. 03, 2001
Larry H. Gass, Chandler, AZ (US);
Chad W. Mercer, Chandler, AZ (US);
David A. Schollmeyer, Chandler, AZ (US);
Larry H. Gass, Chandler, AZ (US);
Chad W. Mercer, Chandler, AZ (US);
David A. Schollmeyer, Chandler, AZ (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A portion of a firmware program may be automatically upgraded during power on of a processor-based system. A firmware upgrade file signed by a private key is authenticated using a public key accessible to the firmware program. The authentication and upgrade is performed automatically. Interrupted upgrades are anticipated and resolved by the firmware program. The public key is duplicated and is itself upgradable, in case the private key changes. The firmware program may be locked to prevent both viewing and unauthorized upgrades of the public keys or other parts of the firmware program.