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:
Jul. 16, 2013
Filed:
Jul. 25, 2011
Charles Marion Ueltschey, Iii, Beaverton, OR (US);
Timothy Andrew Lewis, El Dorado Hills, CA (US);
Charles Marion Ueltschey, III, Beaverton, OR (US);
Timothy Andrew Lewis, El Dorado Hills, CA (US);
Phoenix Technologies Ltd., Milpitas, CA (US);
Abstract
Techniques for supporting legacy VGA video using UEFI standard and extended UEFI graphics drivers. When an operating system that does not natively support the UEFI display protocols requires video services provided by firmware, the operating system communicates a request for video services to a generic video option ROM. The generic video option ROM notifies a generic video SMM driver of the request for video services. Such notification may be performed using a software system management interrupt (SMI). Upon notification, the generic video SMM driver notifies a third party UEFI video driver of the request for video services. The third party video driver provides the requested video services to the operating system. In this way, a third party UEFI graphics driver may support a wide variety of operating systems, even those that do not natively support the UEFI display protocols.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile