发明名称 |
Tape tension control apparatus |
摘要 |
A tape tension control apparatus for controlling tape tension by supplying a current to a reel motor for driving a reel in accordance with a diameter of a tape roll includes a: rotational speed detect or for detecting the rotational speed of the tape roll; a rotational speed comparator for comparing a rotational speed detected by the rotational speed detector and a standard rotational speed corresponding to the diameter of the tape roll; and a current correct or for correcting the value of the current supplied to the reel motor in accordance with a comparison result from the rotational speed comparator in such a manner that the speed of rotation of the reel motor becomes equal to the standard rotational speed.
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申请公布号 |
US5746384(A) |
申请公布日期 |
1998.05.05 |
申请号 |
US19970911569 |
申请日期 |
1997.08.14 |
申请人 |
SONY CORPORATION |
发明人 |
YOSHIZAWA, MASAKI;KOHNO, TAKANOBU;OTA, SATOSHI |
分类号 |
G11B15/43;G11B15/46;(IPC1-7):B65H59/38 |
主分类号 |
G11B15/43 |
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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