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.:

US 8009501 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 30, 2011

Filed:

Jan. 16, 2008
Applicants:

Masao Sugiki, Yokohama, JP;

Chiaki Shoujima, Ooi, JP;

Inventors:

Masao Sugiki, Yokohama, JP;

Chiaki Shoujima, Ooi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 5/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

This storage apparatus includes an access history storage unit for storing, when there is a write request for writing data into the data storage unit or a read request for reading data stored in the data storage unit, history of the write request or read request as access history, an operational information storage unit for storing operational information showing whether the data storage unit is operating, an access prediction unit for predicting whether the data storage unit will be accessed based on the access history, and an operational control unit for performing operational control of pre-starting the data storage unit when the data storage unit is shut off and the access prediction unit predicts that the data storage unit will be accessed, or stopping the data storage unit when the data storage unit is operating and the access prediction unit predicts that the data storage unit will not be accessed.


Find Patent Forward Citations

Sugiki, Masao. (2011). Storage apparatus and power saving method thereof (U.S. Patent No. 8009501). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8009501

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