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:
Aug. 03, 2010
Filed:
Sep. 29, 2008
Tetsuya Tabuchi, Kawasaki, JP;
Mitsuo Kamimura, Kawasaki, JP;
Fumiya Kudo, Kawasaki, JP;
Shigenori Yanagi, Kawasaki, JP;
Tetsuya Tabuchi, Kawasaki, JP;
Mitsuo Kamimura, Kawasaki, JP;
Fumiya Kudo, Kawasaki, JP;
Shigenori Yanagi, Kawasaki, JP;
Toshiba Storage Device Corporation, Tokyo, JP;
Abstract
In a storage device, before activating a spindle motor (SPM) or continuously from activation until the SPM is stabilized at a target number of rotations, a voltage and temperature monitoring unit monitors the temperature in a disk enclosure unit and the voltage to be applied to an SPM driver. A current limit value calculating unit calculates an optimum current limit value not exceeding a rated current of the SPM driver, and a motor controlling unit controls the SPM driver and changes the current to be applied to the SPM so that the current does not exceed this optimum current limit value.