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:
Jan. 13, 2009
Filed:
Apr. 14, 2005
Kunihito Matsuki, Odawara, JP;
Yutaka Takata, Ninomiya, JP;
Hiroshi Ogasawara, Odawara, JP;
Naotaka Kobayashi, Odawara, JP;
Kunihito Matsuki, Odawara, JP;
Yutaka Takata, Ninomiya, JP;
Hiroshi Ogasawara, Odawara, JP;
Naotaka Kobayashi, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The access control device comprises a first interface (IF) which receives access requests from a host device, and a second IF which respectively accesses one or a plurality of access destination candidates in an external device. The second IF attempts to access a particular access destination candidate if the first IF has received an access request, and outputs a judgment result indicating that a recovery has been performed if it is determined that a recovery has been performed after the access attempt has failed. The first IF detects whether there has been a recovery in the access path to the particular access destination candidate by referring to the judgment result output by the second IF.