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:
Nov. 08, 1988
Filed:
Mar. 24, 1987
Yoshihiro Miyazaki, Hitachi, JP;
Jushi Ide, Mito, JP;
Takeshi Kato, Hitachi, JP;
Hiroaki Nakanishi, Hitachi, JP;
Tadaaki Bandoh, Toukai, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A multicomputer system having dual common memories in which specified address areas are set within the common memories. The specified address areas are accessible irrespective of whether a CPU is in an online mode or a debug mode, while any area other than the specified address areas is accessible only when the function mode of the common memory is in agreement with the access mode of the CPU. In correspondence with each CPU, addresses to be used by the CPU are divided into a plurality of groups of addresses, and the access modes are set for the respective address groups.