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. 27, 2007
Filed:
Jun. 23, 2003
Takeo Fujimoto, Odawara, JP;
Hisao Honma, Odawara, JP;
Katsuhiro Okumoto, Odawara, JP;
Osamu Sakaguchi, Yokohama, JP;
Takeo Fujimoto, Odawara, JP;
Hisao Honma, Odawara, JP;
Katsuhiro Okumoto, Odawara, JP;
Osamu Sakaguchi, Yokohama, JP;
Hitachi Software Engineering Co, Ltd., Yokohama, JP;
Abstract
In a shared bus connection scheme or an individual path connection scheme, a fault caused at a part of a system affects the same in its entirety. Also, these schemes do not permit the determination of fault locations. Adaptersare connected to shared memorieswith a plurality of individual pathsthrough. An address locking unit (not shown) is arranged in each of the shared memoriesto perform address lock check on memory access operations from the adapters. If an address to be accessed is in the locked state, the access is held in the lock wait state until the address is unlocked. The access is made when the address locking is cleared.