| 摘要 |
<p>PURPOSE:To simplify operation by automatically turning on a power supply for a recording/reproducing device when the other recording/reproducing medium is doubly inserted during the loading of one recording/reproducing medium into a device and ejecting the medium stored in the device. CONSTITUTION:At the time of detecting double insertion by a detecting switch 1, a one-shot multi-vibrator 10 generates a high output with a prescribed length and the reverse of Q terminal of a flip flop 12 is turned to the high level through an OR circuit 11. Then, an analog switch 13 is turned on and Vcc is supplied to a device including an eject control part 19. The Vcc is supplied to a collector terminal of a switching transistor 18, the reverse of Q terminal of a flip flop 17 is also turned to the high level by the high output of the multi- vibrator 10 and the Vcc is supplied to an eject motor 20. Since the medium already stored in the device is ejected, operation can be simplified.</p> |
