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:
Aug. 15, 1995
Filed:
Oct. 29, 1993
Applicant:
Inventor:
Masabumi Shibata, Kawasaki, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395325 ; 395425 ; 395725 ;
Abstract
A multi-processor system wherein a plurality of processors connected to a common bus share a main storage by means of a storage controller connected to the common bus. If a processor executes a lock setting, the other processors receive the lock address sent to the common bus by the processor. When another processor issues a request regarding the main storage, the request address is compared with the received lock address. If the request address is the same as the lock address, the processor suspends issuing the request regarding the main storage.