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. 11, 1992
Filed:
Jan. 31, 1989
Applicant:
Inventors:
Mary K Vernon, Madison, WI (US);
Udi Manber, Tuscon, AZ (US);
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395725 ; 3642401 ; 3642427 ; 36424292 ; 36493701 ; 364D / ; 364D / ;
Abstract
A protocol is disclosed for the round-robin distributed arbitration of access to a common resource, such as a bus, in a multiprocessor system or machine. The protocol assigns identity values to each agent, or processor, which are compared during each arbitration to determine which agent is awarded control of the bus. To enhance fairness agents having an identity value lower than the winner of the last arbitration are favored over agents having a higher identity value in the next subsequent arbitration.