发明名称 |
Drive speed detector for a motor that drives a data reproducing device |
摘要 |
A drive speed detector for a pickup feed motor including a detector for detecting the drive speed of the optical pickup feed motor by generating an AC signal with a frequency which is proportional to the drive speed of the optical pickup feed motor and a controller for controlling the sensitivity of the detecting means in order to uniform an amplitude level of the AC signal output from the detecting means.
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申请公布号 |
US5712560(A) |
申请公布日期 |
1998.01.27 |
申请号 |
US19950522107 |
申请日期 |
1995.08.31 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
MAEDA, SATORU;NAKANE, HIROSHI |
分类号 |
G01P3/487;G11B7/085;G11B21/08;(IPC1-7):G01P3/48 |
主分类号 |
G01P3/487 |
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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