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:
Nov. 16, 2010
Filed:
Feb. 09, 2005
Fadi A. Mahmoud, Kailua, HI (US);
Ganapathy S. Sridaran, Milpitas, CA (US);
Fadi A. Mahmoud, Kailua, HI (US);
Ganapathy S. Sridaran, Milpitas, CA (US);
PMC-Sierra US, Inc., Santa Clara, CA (US);
Abstract
An invention is provided for authenticating software associated with an embedded device on a motherboard. An embodiment includes executing an option ROM BIOS for the embedded device. If a bit pattern read from a first memory located on the host card does not match a predetermined bit pattern, the option ROM BIOS is terminated. In another embodiment, a first memory address is provided to the address lines of a memory device located on the host card and a first set of data is output from the memory device, followed by a second memory address to output a second set of data. The second memory address is equal to the first memory address plus the maximum addressable size of the memory device. The first set of data is compared to the second data, and the option ROM BIOS is terminated if the first and second sets of data do not match.