发明授权
US08737013B2 Disk drive selecting disturbance signal for feed-forward compensation
有权
磁盘驱动器选择用于前馈补偿的干扰信号
- 专利标题： Disk drive selecting disturbance signal for feed-forward compensation
- 专利标题（中）： 磁盘驱动器选择用于前馈补偿的干扰信号
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申请号： US13298241申请日： 2011-11-16
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公开(公告)号： US08737013B2公开(公告)日： 2014-05-27
- 发明人: Jianguo Zhou , Wei Xi , Kuang-Yang Tu , Alain Chahwan
- 申请人： Jianguo Zhou , Wei Xi , Kuang-Yang Tu , Alain Chahwan
- 申请人地址： US CA Irvine
- 专利权人： Western Digital Technologies, Inc.
- 当前专利权人： Western Digital Technologies, Inc.
- 当前专利权人地址： US CA Irvine
- 主分类号： G11B5/596
- IPC分类号： G11B5/596
摘要：
A disk drive is disclosed comprising a disk, a head, and control circuitry comprising a servo control system operable to actuate the head over the disk. A plurality of disturbance signals is generated in response to a vibration. A plurality of correlations is generated in response to each disturbance signal and an error signal of the servo control system. At least one of the disturbance signals is selected in response to the correlations. A feed-forward compensation value is generated in response to the selected disturbance signal, and the feed-forward compensation value is applied to the servo control system to compensate for the vibration.
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