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:
Feb. 11, 1992
Filed:
Feb. 10, 1986
Applicant:
Inventors:
Shigeo Takasaki, Sagamihara, JP;
Masaichiro Yoshioka, Sagamihara, JP;
Takashige Kubo, Hachioji, JP;
Yoshio Ukai, Yokohama, JP;
Yasuo Kubo, Yokohama, JP;
Jinichi Imura, Yokosuka, JP;
Nobutaka Hagiwara, Fujisawa, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395400 ; 364280 ; 3642563 ; 3642543 ; 3642565 ; 364D / ;
Abstract
A file control system for virtual machines capable of executing simultaneously a plurality of operating systems in a single computer system under control of a virtual machine monitor for controlling the operating systems, wherein interface means for file input/output operation are provided between the virtual machine monitor and the operating systems for allowing the virtual machine monitor to manage a plurality of files owned by the virtual machines.