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. 21, 1990
Filed:
Aug. 14, 1987
Akira Muramatsu, Kawasaki, JP;
Kousuke Sakoda, Hino, JP;
Ikuo Yoshihara, Tama, JP;
Kazuo Nakao, Sagamihara, JP;
Makoto Nohmi, Kawasaki, JP;
Naoki Hamanaka, Tokyo, JP;
Shigeo Nagashima, Hachioji, JP;
Teruo Tanaka, Hachioji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In accessing a memory, each element processor executes a program constructed so as to designate an address belonging to a predetermined local address area for each element processor. When a memory write instruction is executed by an element processor, it is detected if the memory address designated by the instruction coincides with a predetermined address. If detected, a predetermined address belonging to a local address space of another element processor and assigned to the first-mentioned predetermined address, and the data written in response to the write instruction, are sent to the other element processor to instruct the data to be written therein as a copy data. A next task to be executed is decided independently for each element processor.