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. 02, 2005
Filed:
Oct. 01, 2003
Akira Fujibayashi, Kokubunji, JP;
Atsushi Tanaka, Urawa, JP;
Nobuyuki Minowa, Odawara, JP;
Hikari Mikami, Odawara, JP;
Hisashi Nanao, Fujisawa, JP;
Akira Fujibayashi, Kokubunji, JP;
Atsushi Tanaka, Urawa, JP;
Nobuyuki Minowa, Odawara, JP;
Hikari Mikami, Odawara, JP;
Hisashi Nanao, Fujisawa, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Software Engineering Company, Ltd., Yokohama, JP;
Hitachi Video and Information System Inc., Yokohama, JP;
Abstract
A disk array controller connected in a star configuration with a plurality of interfaces each having a processor, a shared memory connected to the interfaces by access paths and a common bus connected to the interfaces. The shared memory transmits interruption signals to the interface by way of control signals when one of the processors writes broadcast data into the shared memory.