发明名称 |
Head positioning method, and disk apparatus using the same |
摘要 |
<p>A disturbance compensation signal is produced by estimating the magnitude of disturbance acting upon an actuator based on a driving signal and a voltage signal generated when driving the actuator. A control signal is produced by multiplying the disturbance compensation signal by a gain adjustment coefficient. A head position error signal is produced based on the target position of a magnetic head and the current position of the magnetic head that is detected based on servo information recorded in advance on a magnetic disk. A gain adjuster obtains the driving signal by adding together the control signal and a position control signal. The actuator is driven with the driving signal output from the gain adjuster. <IMAGE></p> |
申请公布号 |
EP1376545(A1) |
申请公布日期 |
2004.01.02 |
申请号 |
EP20030014391 |
申请日期 |
2003.06.26 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
MIYATA, KEIZO;INAJI, TOSHIO |
分类号 |
G11B5/55;(IPC1-7):G11B5/55 |
主分类号 |
G11B5/55 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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