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. 01, 2004
Filed:
Sep. 22, 1999
Jeffrey Kao, Taipei, TW;
Micro-Star International Co., Ltd., Taipei Hsien, TW;
Abstract
A method for preventing a BIOS from getting viruses, wherein a changeable memory for storing BIOS codes is divided into two areas, one is a primary actuating area and other is a duplicating area. Initially these two areas store identical BIOS. The method comprises the steps of actuating from the primary actuating area and determining whether the step of actuating exists; performing the process to a testing point, and comparing the check sums of the primary actuating area and the duplicating area; through the comparison, performing the starting up process from the primary actuating area and duplicating area and copying the data of the primary actuating area and duplicating area to one another to maintain one area having a complete BIOS in order to prevent the BIOS from being destroyed by virus, or by abnormal modification, so that the system operates normally.