发明名称 |
On-line bias estimator in hard disk drives |
摘要 |
A hard disk drive with a circuit that provides a control signal to a voice coil motor to move a head across a disk of the drive. The drive includes a flex circuit that applies a bias force onto an actuator arm coupled to the head. The circuit includes a state estimator that provides a plurality of estimation errors and a bias estimator that creates a bias estimate. The bias estimate includes an average of the estimation errors and is a function of the flex circuit bias force. The bias estimate is used to create the control signal provided to the voice coil motor. The bias estimate reduces seek time during a seek routine.
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申请公布号 |
US7729081(B1) |
申请公布日期 |
2010.06.01 |
申请号 |
US20090367085 |
申请日期 |
2009.02.06 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KANG CHANG-IK |
分类号 |
G11B5/596 |
主分类号 |
G11B5/596 |
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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