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. 19, 2010
Filed:
Apr. 25, 2005
Nobuyuki Saika, Yokosuka, JP;
Atsushi Murakami, Yokohama, JP;
Nobuyuki Saika, Yokosuka, JP;
Atsushi Murakami, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Loads on access destinations are balanced. A first controller and a second controller, which accept requests from a plurality of sources, and write and read data to/from a storage device in response to these requests, are provided. The first controller returns to at least one first source of a plurality of sources a response to a request from the first source, and does not return to a second source other than a first source a response to a request from the second source. The second controller does not return a response to a request from a first source to the first source receiving a response from the first controller, and returns a response from a second source to the second source not receiving a response from the first controller.