发明名称 |
CONTINUOUS-PLUS-EMBEDDED SERVO DATA POSITION CONTROL SYSTEM FOR MAGNETIC DISK DEVICE |
摘要 |
A magnetic disk drive of the type in which a disk assembly has a dedicated servo surface containing circular tracks of dedicated servo signals and data surfaces containing circular data tracks divided into sectors each of which includes a data field and a servo field containing embedded servo signals, a dedicated servo signal detector for detecting servo signals on said dedicated surface, an embedded signal detector for detecting embedded servo signals on a data surface and a head positioning system for positioning a read/write head over a selected data track. The entire output of the embedded signal detector is combined with the high-frequency components of the output of the dedicated signal detector to produce a composite track error signal and the head positioning system responds to the composite track error signal to maintain the read/write head over the selected data track. |
申请公布号 |
DE3378800(D1) |
申请公布日期 |
1989.02.02 |
申请号 |
DE19833378800 |
申请日期 |
1983.05.06 |
申请人 |
DIGITAL EQUIPMENT CORPORATION |
发明人 |
SIDMAN, MICHAEL D. |
分类号 |
G11B21/10;G11B5/55;G11B5/596;(IPC1-7):G11B5/58 |
主分类号 |
G11B21/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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