发明授权
US6097565A Repeatable runout free servo architecture in direct access storage device
失效
可重复跳出自由伺服架构在直接存取存储设备
- 专利标题: Repeatable runout free servo architecture in direct access storage device
- 专利标题(中): 可重复跳出自由伺服架构在直接存取存储设备
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申请号: US594572申请日: 1996-01-31
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公开(公告)号: US6097565A公开(公告)日: 2000-08-01
- 发明人: Muthuthamby Sri-Jayantha , Arun Sharma , Hien Dang , Hirouki Suzuki
- 申请人: Muthuthamby Sri-Jayantha , Arun Sharma , Hien Dang , Hirouki Suzuki
- 申请人地址: NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: NY Armonk
- 主分类号: G11B21/10
- IPC分类号: G11B21/10 ; G11B5/596
摘要:
In a direct access storage device including a rotating disk, a head positioned for interaction with said disk, an actuator for carrying said head and a servo system for operating said actuator so as to follow a substantially circular track on said disk by responding to a position error signal, a method for reducing response of the servo system to radial runout of the circular tracks, comprising the steps of obtaining radial runout data; filtering the data; storing the filtered data; subtracting the filtered data from the position error signal to obtain a corrected position error signal; and using the corrected position error signal to control the servo system. A direct access storage device in accordance with the invention includes means for obtaining radial runout data; means for filtering the data; means for storing the filtered data; means for subtracting the filtered data from the position error signal to obtain a corrected position error signal; and means for controlling the servo system using the corrected position error signal.
公开/授权文献
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