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:
Jul. 06, 2004
Filed:
Mar. 05, 2001
Satoshi Shibata, Ome, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
At the time of the loading of head, the CPU flows a plurality of different currents to VCM, and by reading the back electromotive force monitor value of the back electromotive force monitor circuit each time, the calibration value of the circuit is obtained, and by using this calibration value, head-loading control is executed. The calibration value obtained previously is compensated on the basis of temperature changes, temperature compensation coefficient that shows the relation between the variation of the calibration value of the back electromotive force monitor circuit, and the difference between the above-mentioned two measured temperatures.
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