发明名称 |
Bi-directional difference counter |
摘要 |
Disclosed is a servo control system for a disk drive actuator using a bi-directional (Up/Down) Difference Counter along with a control circuit therefor which signals the counter each time a "rest position" is passed, indicating whether this passage is toward, or away-from, the destination track.
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申请公布号 |
US4808900(A) |
申请公布日期 |
1989.02.28 |
申请号 |
US19870020405 |
申请日期 |
1987.03.02 |
申请人 |
UNISYS CORP. |
发明人 |
OHLINGER, WILHELM;WARNER, NICHOLAS M. |
分类号 |
G11B21/08;G05B19/23;G11B5/55;(IPC1-7):G05B11/18;G11B21/10 |
主分类号 |
G11B21/08 |
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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