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:
Dec. 27, 1994
Filed:
Jul. 28, 1992
Applicant:
Inventors:
Graham Entwistle, Bolton, MA (US);
John Doyle, Franklin, MA (US);
Mark Desmarais, Shrewsbury, MA (US);
Tim Sullivan, Clinton, MA (US);
Assignee:
Data General Corporation, Westboro, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395325 ; 364D / ; 364229 ; 3642292 ; 3642301 ; 364240 ; 3642426 ; 3642427 ; 3642428 ; 3642429 ;
Abstract
A bus arbitration algorithm using round robin and variable packet counts. In addition, each node is assigned a maximum packet size which can be adjusted by the operating system. The round robin determines which node will be granted the bus based on priority on a serial wrap-around list. The packet count is one factor in determining how long the node granted the bus may use it. The maximum packet size is a second factor in determining the permitted duration on the bus.