发明授权
US08830617B1 Disk drive adjusting state estimator to compensate for unreliable servo data
有权
磁盘驱动器调整状态估计器来补偿不可靠的伺服数据
- 专利标题： Disk drive adjusting state estimator to compensate for unreliable servo data
- 专利标题（中）： 磁盘驱动器调整状态估计器来补偿不可靠的伺服数据
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申请号： US13925798申请日： 2013-06-24
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公开(公告)号： US08830617B1公开(公告)日： 2014-09-09
- 发明人: Aswartha Narayana , Yanan Huang
- 申请人： Western Digital Technologies, Inc.
- 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： G11B5/55
- IPC分类号： G11B5/55
摘要：
A disk drive is disclosed comprising a disk comprising tracks defined by servo sectors, a head, and control circuitry comprising a servo control system operable to actuate the head over the disk based on the servo sectors. An estimated acceleration EstAccel of the head over the disk is generated based on at least one of the servo sectors. When the EstAccel is determined to be reliable, an estimated velocity EstVel of the head over the disk is generated based on the EstAccel. When the EstAccel is determined to be unreliable, the EstAccel is adjusted to generate an adjusted acceleration AdjAccel and the EstVel of the head over the disk is generated based on the AdjAccel.
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