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:
Feb. 04, 1997
Filed:
Aug. 22, 1995
Applicant:
Inventors:
Stephen M Baker, Roseville, MN (US);
Randall L Dodson, New Hope, MN (US);
Mark E Wright, Minneapolis, MN (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B / ; G06F / ; H03M / ;
U.S. Cl.
CPC ...
39518209 ; 371 681 ; 364184 ; 36494461 ; 3642689 ;
Abstract
The invention is an apparatus which utilizes relatively few conductors to provide fail-safe communication between multiple electrical subsystems and a redundant pair of data processors. This is accomplished by including two first-in, first-out memory units within each electrical subsystem, and utilizing these memory units to send the output data from the electrical subsystems on a pair of parallel data buses to a redundant pair of data processors, which then perform error tests on the data to ensure its integrity.