发明名称 |
Movable head position controlling device for magnetic recording and reproducing apparatuses. |
摘要 |
<p>A movable head position controlling device for magnetic recording and reproducing apparatuses. The position of a magnetic head is detected. The magnetic head is driven by an actuator in accordance with a driving signal. The driving signal is corrected on the basis of the estimated speed of the magnetic head, the absolute height of the movable head, the displacement of the magnetic head, or the output of an equivalent coil. The speed of the magnetic head is estimated by a speed estimating observer. The absolute height is detected by a magnetic field detecting element. The displacement of the magnetic head is detected by non-contacting sensors attached to a member which moves together with the magnetic head and a member which does not move together with the magnetic head, respectively. <IMAGE></p> |
申请公布号 |
EP0463883(A2) |
申请公布日期 |
1992.01.02 |
申请号 |
EP19910305893 |
申请日期 |
1991.06.28 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
NAGASAWA, MASATO;YOKOYAMA, EIJI |
分类号 |
G11B5/588 |
主分类号 |
G11B5/588 |
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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