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:
Mar. 23, 2004
Filed:
Feb. 11, 2000
Christopher J. Spiegel, Carmichael, CA (US);
Andrew H. Gafken, Folsom, CA (US);
Robert P. Hale, Portland, OR (US);
William A. Stevens, Jr., Folsom, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A protected boot sequence in a computer system. A reset vector directs the system to a boot program including a protected program. This protected program verifies the integrity of the BIOS contents before branching to the BIOS for execution of normal bootstrap functions. The protected program can also lock down various blocks of bootstrap code to prevent them from being changed after a certain point in the boot sequence. The protected boot sequence can proceed in layers, with each layer providing some level of validation or security for succeeding layers.