发明授权
- 专利标题： Reel position-detecting device
- 专利标题（中）： 卷轴位置检测装置
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申请号： US899933申请日： 1986-08-25
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公开(公告)号： US4726542A公开(公告)日： 1988-02-23
- 发明人: Norio Nakayama , Kiyosi Kimura , Yoshikazu Komatsu
- 申请人： Norio Nakayama , Kiyosi Kimura , Yoshikazu Komatsu
- 申请人地址： JPX Tokyo
- 专利权人： Anritsu Corporation
- 当前专利权人： Anritsu Corporation
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX60-188526 19850829
- 主分类号： G11B15/16
- IPC分类号： G11B15/16 ; G11B15/66 ; G11B15/67 ; G11B15/32
摘要：
A reel position-detecting device for use in a magnetic tape drive unit, designed to determine whether or not a supply reel has been positioned upside down in a retainer. When reel-detecting means detects that the supply reel has been set in the retainer, the retainer is rotated in the opposite direction to the tape-supply direction. If tape supply-detecting means detects the magnetic tape and then ceases to detect the tape within a predetermined period, processing means determines that the supply reel has been correctly positioned. Otherwise, the processing means determines that the supply reel has been positioned upside down.
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