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:
May. 24, 2016
Filed:
Jan. 07, 2013
Fujitsu Limited, Kawasaki-shi, JP;
Masaaki Takase, Yokohama, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A data access control apparatus has a management information table in which identification information of a storage node specified as one to which transmission of a reference request is inhibited and a reference condition are associated with each other. When a reference condition and a reference request are received, a transmission processing unit transmits the received reference condition and a reference request to storage nodes except a storage node associated with the received reference condition in the management information table. A registration processing unit determines, based on a response from each storage node to which the reference request has been transmitted, a storage node in which no data matching the received reference condition is stored, and registers identification information of the determined storage node in the management information table in association with the received reference condition.