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. 28, 1989
Filed:
May. 19, 1987
James A Katzman, San Jose, CA (US);
Joel F Bartlett, Palo Alto, CA (US);
Richard M Bixler, Sunnyvale, CA (US);
William H Davidow, Atherton, CA (US);
John A Despotakis, Pleasanton, CA (US);
Peter J Graziano, Los Altos, CA (US);
Michael D Green, Los Altos, CA (US);
David A Greig, Cupertino, CA (US);
Steven J Hayashi, Cupertino, CA (US);
David R Mackie, Ben Lomond, CA (US);
Dennis L McEvoy, Scotts Valley, CA (US);
James G Treybig, Sunnyvale, CA (US);
Steven W Wierenga, Sunnyvale, CA (US);
Tandem Computers Incorporated, Cupertino, CA (US);
Abstract
In a multiprocessor system interconnected by a bus structure that provides communication and information transfers between the processor modules of the system, each processor broadcasts a central message to all the other processors of the system on a periodic basis. A processor module not receiving the control message from a sending processor module will assume the sending processor module has failed, and operate to take over the task of the failed processor module.