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. 17, 2009
Filed:
Oct. 27, 2005
Applicants:
Mark A. Piwonka, Houston, TX (US);
Bernard D. Desselle, Houston, TX (US);
David J. Delisle, Houston, TX (US);
Inventors:
Mark A. Piwonka, Houston, TX (US);
Bernard D. Desselle, Houston, TX (US);
David J. DeLisle, Houston, TX (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A BIOS password security technique includes first logic operable to extract a down scan code from a keyboard input queue, the down scan code having a most significant bit; second logic operable to examine case-related auxiliary information; and third logic operable to set the state of the most significant bit responsive to the case-related auxiliary information, thereby creating a modified scan code.