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:
Jan. 31, 2017
Filed:
Feb. 23, 2012
Applicant:
Ryo Okabe, Tokyo, JP;
Inventor:
Ryo Okabe, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/04 (2006.01); G06F 21/62 (2013.01); G06F 9/50 (2006.01); G06F 9/52 (2006.01); G06F 9/455 (2006.01);
U.S. Cl.
CPC ...
G06F 21/6218 (2013.01); G06F 9/45558 (2013.01); G06F 9/5011 (2013.01); G06F 9/5077 (2013.01); G06F 9/52 (2013.01); G06F 2009/45579 (2013.01); G06F 2009/45587 (2013.01);
Abstract
When an access occurs to an I/O device from an OS, an I/O allocation unit refers to an I/O allocation table, and determines whether the I/O device is allocated to other OS. When the I/O device is allocated to another OS, a control unit notifies the OSof an error. When the I/O device is not allocated to either of the OSs-, the I/O allocation unit updates the I/O allocation table in order to allocate the I/O device to the OS, and an I/O emulation unit emulates the access to the I/O device.