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:
Oct. 05, 2010
Filed:
Jan. 03, 2005
Masahiko Saito, Hitachi, JP;
Tadashi Kamiwaki, Tokai-mura, JP;
Tomoaki Nakamura, Hitachinaka, JP;
Hiroshi Ohno, Hitachi, JP;
Taro Inoue, Yamato, JP;
Masahiko Saito, Hitachi, JP;
Tadashi Kamiwaki, Tokai-mura, JP;
Tomoaki Nakamura, Hitachinaka, JP;
Hiroshi Ohno, Hitachi, JP;
Taro Inoue, Yamato, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A computer system having a plurality of operating systems and a module for switching the operating systems in view of priorities of tasks to be performed by each of the operating systems. Each of the operating systems performing a plurality of processes or threads in accordance with the priorities assigned to these processes or threads has a module for notifying the computer system of the priority of the currently executing process or thread. The computer system includes a module for translating the priorities sent from each operating system into priorities (normalized priorities) common-throughout the computer system, and a module for comparing the normalized priorities obtained by the priority translation module in order to select and execute preferentially the operating system having a common priority higher than that of any other operating system.