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.

Date of Patent:
Aug. 18, 1998

Filed:

Jun. 07, 1996
Applicant:
Inventor:

Takeshi Takamiya, Tokyo, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395293 ;
Abstract

In a computer system where a plurality of bus masters are connected to a bus, a bus arbiter connected to the bus, comprises an arbitration circuit that arbitrates between the bus access request signals from the plurality of bus masters and outputs a bus access grant signal to a single bus master of the plurality of bus masters, unit for holding a value indicating the duration during which the switching of the bus access grant signal is to be inhibited, counting unit capable of counting on the basis of the value held in the holding unit, unit for causing the counting unit to start counting at the time when the arbitration circuit has given a bus access grant signal to a bus master, unit for inhibiting the arbitration circuit from switching the bus access grant signal in the period until the counting has been completed, as long as the bus access request signal from the bus master to which the bus access grant signal has been given remains active, and unit for permitting the arbitration circuit to switch the access grant signal after the counting has been completed.


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