| 摘要 |
<p>PURPOSE:To realize cost reduction without requiring any complex circuit, by providing a detector which detects tape reels turning, oscillating circuit which generates different outputs with extremely different positive and negative duty ratios, etc. CONSTITUTION:An auto reversing device is equipped with the detector 7 which detects tape reels turning, oscillating circuit P, etc. In this case, the oscillating circuit P generates oscillation outputs with extremely different duty ratios so that T1 and T2 are obtained in periods Low and High for, for example, 1-2 and 10ms respectively. This constitution permits cost reduction without requiring any complex circuit and provides performance free of winding of a tape around a pinch roller.</p> |
