发明名称 |
Reducing actuator arm oscillation during settle mode in a disc drive servo system |
摘要 |
An apparatus and method for compensating actuator arm oscillation induced by resonance mode excitation during a seek in a disc drive data handling system. The actuator arm supports a head adjacent a recording surface, and a servo loop controls the position of the actuator arm. A frequency of actuator arm oscillation is identified, after which a seek is initiated to move the head from an initial track to a destination track on the recording surface. A position error signal (PES) is generated to indicate position of the head relative to the destination track, and a compensation signal is generated by a filter based on the PES and the frequency of oscillation of the actuator arm. The compensation signal is adapted to remove a component of the PES arising from the actuator arm oscillation, and is applied to the servo loop as the head is settled onto the destination track. |
申请公布号 |
US2003206365(A1) |
申请公布日期 |
2003.11.06 |
申请号 |
US20010788065 |
申请日期 |
2001.02.16 |
申请人 |
HO HAI THANH;WON JUSTIN;ABOU-JAOUDE FADI YOUSSEF;CAMPBELL GREGORY ANDREW |
发明人 |
HO HAI THANH;WON JUSTIN;ABOU-JAOUDE FADI YOUSSEF;CAMPBELL GREGORY ANDREW |
分类号 |
G11B21/10;G11B5/55;G11B5/596;(IPC1-7):G11B5/596 |
主分类号 |
G11B21/10 |
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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