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:
Mar. 11, 2003
Filed:
Jun. 16, 1995
Applicant:
Inventor:
Jeffrey A. Wilcox, Bourne, MA (US);
Assignee:
EMC Corporation, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/05 ; H03K 1/9003 ; G06F 1/300 ;
U.S. Cl.
CPC ...
H02H 3/05 ; H03K 1/9003 ; G06F 1/300 ;
Abstract
A redundant peripheral device subsystem in a computer system is disclosed including first and second peripheral device controllers. First and second peripheral device busses are coupled to the first and second peripheral device controllers, respectively. A controllable switch is coupled between the first and second peripheral device busses. The controllable switch either isolates the first and second peripheral device busses from each other, or joins them into a single peripheral device bus.