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:
Sep. 15, 1981
Filed:
Oct. 30, 1978
Applicant:
Inventor:
Akira Hattori, Yokohama, JP;
Assignee:
Fujitsu Limited, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ;
Abstract
Effective expansion of a common intermediate buffer memory by equivalent use of the buffer memory in each CPU in a multiprocessor system. A method and system for achieving buffer memory coincidence is applied to a multiprocessor system provided with central processing units, buffer memories contained in respective central processing units, a main memory, and an intermediate buffer memory connected between the main memory and the buffer memories, wherein a buffer invalidation address information (BIA GO) is sent from the intermediate buffer memory to the i-th central processing unit (BIA GO #i) in accordance with the following logical expression: