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:
Dec. 30, 2014
Filed:
Dec. 24, 2008
Bibo Wang, Beijing, CN;
Yongfeng Liu, Beijing, CN;
Chunmei Liu, Beijing, CN;
Jun Chen, Beijing, CN;
Beijing Lenovo Software Ltd., Beijing, CN;
Lenovo (Beijing) Limited, Beijing, CN;
Abstract
The present invention provides a method and a computer system for sharing a graphics card among multiple Operation Systems (OSs). The method includes: detecting a first GOS to be displayed, the first GOS being a primary GOS or one of at least one secondary GOS; determining the kind of the first GOS, so that different display control register bank(s) and graphics card memory resources are allocated to the first GOS depending on whether it is a primary GOS or a secondary GOS; controlling the display control register bank(s) allocated to the first GOS to connect to a display output port; obtaining display contents based on the graphics card memory resources allocated to the first GOS; and displaying the display contents based on display mode parameters in the display control register bank(s) connected to the display output port. According to the present invention, it is possible to share the graphics card among the multiple OSs without modifying the drivers of the primary GOS.