发明名称 |
Method and apparatus for self servowriting of tracks of a disk drive using a servo control loop having a two-dimensional digital state compensator |
摘要 |
A method is disclosed for defining tracks on a rotating magnetic disk medium of a disk drive. Reference tracks are followed using a servo control loop while writing servo burst patterns defining a first target servo track. The servo control loop includes a two-dimensional digital state compensator having a first input that receives position error signals, a first output that generates control signals for positioning a transducer head, a second output that generates track-following state variables, and a second input that receives stored track-following state variables. The first target track is followed using the servo control loop while servo burst patterns are written, and while the stored track-following state variables corresponding to the servo burst patterns defining the first target track are applied to the second input.
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申请公布号 |
US6819518(B1) |
申请公布日期 |
2004.11.16 |
申请号 |
US20020280603 |
申请日期 |
2002.10.24 |
申请人 |
WESTERN DIGITAL TECHNOLOGIES, INC. |
发明人 |
MELKOTE HEMANT;CLOKE ROBERT L.;AGARWAL VINAY K. |
分类号 |
G11B5/596;(IPC1-7):G11B21/02 |
主分类号 |
G11B5/596 |
代理机构 |
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代理人 |
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地址 |
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