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. 18, 2005
Filed:
Feb. 13, 2001
Applicants:
John Ditner, New Hamburg, CA;
Marc Morin, Waterloo, CA;
Inventors:
John Ditner, New Hamburg, CA;
Marc Morin, Waterloo, CA;
Assignee:
Cisco Systems Canada Co., Halifax, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1100 ;
U.S. Cl.
CPC ...
Abstract
A system and method for the switching of control between redundant controllers is presented. The status of the redundant controllers is monitored to determine if switching of control between controllers is required. The monitoring and switching system is hardware based with control being implemented via a state machine.