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. 28, 1997
Filed:
Apr. 03, 1995
Juan A Garay, Yonkers, NY (US);
Kenneth J Perry, Riverdale, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
This invention includes a consensus protocol, a broadcast protocol and a fault tolerant computer system created by using the two protocols together in combination. The protocols and system use the minimum number of processors to create a system tolerant of concurrent processor crash and byzantine failures. The protocols are subject to certain validity conditions. The system in the state of consensus is guaranteed to have all non-faulty processors in agreement as to what action the system should take. The system and protocols can tolerate up to t total number of processor failures, no more than b of which may fail in the byzantine mode.