| 摘要 |
<p>PURPOSE:To make dubbing operation at high efficiency by making quick feeding operation of a magnetic tape when there is no dubbing signal for a specified time. CONSTITUTION:In the state of dubbing operation, if there is no dubbing signal for a specified time, a signal of H level is outputted to the output terminal 48 of a timer circuit 46, and a signal of H level is inputted to the first input terminal of the fourth AND circuit 49, and a signal of H level is applied to the input terminal 5 for quick feeding of a controlling circuit 2. Output signals of the first switching signal output terminal 8, the third switching signal output terminal 10 and an output terminal 14 for dubbing are inverted to L level, and at the same time, signals of H level are outputted to the first and second quick feed switching signal output terminals 12, 13. When signals so far outputted to the first switching signal output terminal 8 become L level, the first driving circuit 15 becomes inactive state, reproducing action in the first direction is released. When a signal of H level is outputted to the first quick feed switching signal output terminal 12, the first quick feeding circuit 17 becomes active state, and the first tape recorder becomes the state of quick feeding in the first direction.</p> |
