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:
Jul. 06, 1999
Filed:
Apr. 02, 1993
Raman K Sud, Fremont, CA (US);
Chris Koverman, Soquel, CA (US);
Jingsong Cai, Fremont, CA (US);
Thomas Hill, Cupertino, CA (US);
Centigram Communications Corporation, San Jose, CA (US);
Abstract
A fault tolerant multiple processor data processing system is described. The system includes a number of processors linked together in a network. One processor is designated the master processor and coordinates the operation of all of the processors. The network is coupled to a number of memory devices which store information which is utilized by the processors. The apparatus includes a redundant mechanism for identifying a failure of a processor. If the master processor fails, a new master processor is selected, in a dynamic manner, from the remaining operative processors. The selection of a new master processor is based upon a contention operation in which the operative processors contend to become the new master processor.