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.

Date of Patent:
May. 25, 2010

Filed:

Dec. 13, 2005
Applicant:

Fumitoshi Mizutani, Tokyo, JP;

Inventor:

Fumitoshi Mizutani, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a high reliability fault tolerant computer system capable of constructing a redundant configuration employing PnP software. In duplexing systems, entities of IO bridges (actual IO bridges) which are connected to virtual bus and correspond each other is integrated into the systems as pseudo IO bridges, so that if the systems are physically disconnected each other, by emulating the actual IO bridge in another system, the pseudo-IO bridge can act as if a so-called PnP event in the IO bridge itself does not occur.


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