发明授权
US08094405B1 Repetitive error correction method for disk-drive servo control systems
有权
磁盘驱动伺服控制系统的重复纠错方法
- 专利标题: Repetitive error correction method for disk-drive servo control systems
- 专利标题(中): 磁盘驱动伺服控制系统的重复纠错方法
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申请号: US12258351申请日: 2008-10-24
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公开(公告)号: US08094405B1公开(公告)日: 2012-01-10
- 发明人: Edward Ying , Pantas Sutardja , Man Cheung
- 申请人: Edward Ying , Pantas Sutardja , Man Cheung
- 申请人地址: BB Hamilton
- 专利权人: Marvell International Ltd.
- 当前专利权人: Marvell International Ltd.
- 当前专利权人地址: BB Hamilton
- 主分类号: G11B5/596
- IPC分类号: G11B5/596
摘要:
Methods, systems and computer program products for compensating repeatable run-out (RRO) are described. In some implementations, RRO may be compensated by predicting the RRO and subsequently subtracting the predicted RRO from the actual value of the RRO to cancel out the undesired effect caused by the RRO during operation. More specifically, RRO generated at each spindle motor rotation may be predicted by measuring the position errors associated with the RRO with respect to a current position of a read/write head. A computational model then may be utilized to determine one or more correction factors to compensate for the RRO.
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