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:
Jun. 11, 1996
Filed:
Aug. 23, 1993
Applicant:
Inventors:
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
395307 ; 395293 ; 395280 ; 39520002 ; 39520006 ; 364240 ; 3642402 ; 3642403 ; 3642426 ; 36424292 ; 364D / ;
Abstract
A bus arbiter permits an answer transfer request to utilize a system bus with higher priority than a command transfer request, thereby increasing the processing efficiency of CPU boards. A multi-processor system utilize the system bus with a time split transfer system in which the data width of a unit is inserted into a command and an answer transmitted and received between processors and transmitted as bus width information, thus making it possible to interconnect a unit, which processes data of an arbitrary data width, to the system bus. Local memories of a plurality of units connected to the system bus can be accessed via a bus interface of an input and output unit.