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. 02, 1996
Filed:
Apr. 14, 1995
Applicant:
Inventors:
Mikiel L Larson, St Charles, IL (US);
Wayne R Wilcox, Naperville, IL (US);
Assignee:
AT&T Corp., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ;
U.S. Cl.
CPC ...
395292 ; 395293 ; 395296 ;
Abstract
An arbitration circuit that uses a unique history register that is combined with a value representing bus requests to index into a table. All possible combinations of history register requests are stored in the table along with a corresponding grant. A block of the table is selected by the history register, and then the request is used to index into the block to determine which request receives a grant. The grant is then shifted into the history register. Advantageously, more than one table may be stored in memory which can be selected by an arbiter controller.