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:
May. 24, 2011
Filed:
Mar. 13, 2007
Applicants:
Jun Sun, Fremont, CA (US);
Dong Zhou, San Jose, CA (US);
Assignee:
NTT Docomo, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/44 (2006.01); G06F 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus is disclosed herein for secure operating system switching. In one embodiment, the method comprises identifying a second operating system of a plurality of operating systems that is to be active next; causing a memory access controller to enable exclusive access to a portion of memory for the second operating system once the second operating system becomes active; and causing the second operating system to become active.