| 摘要 |
<p>PURPOSE:To reproduce a piece of music from its head part by detecting a signalless part including between signals recorded on one track during the reproduction and listening of signals recorded on the other track and displaying the signalless part. CONSTITUTION:Magnetic heads 1, 2 reproduce signals for right and left channels which are recorded on the track orientated to the 1st direction and magnetic heads 3, 4 reproduce signals for right and left channels which are recorded on the track orientated in the 2nd direction. Changeover switches S5-8 are switched by a magnetic tape reproducing direction switching device. In the reproducing status in the 1st direction, signals reproduced by the heads 1, 2 are outputted to the terminals 16, 17 of a headphone jack 15. At that time, signals reproduced by the heads 3, 4 are inputted to a signalless part detecting circuit 19 through the switches S7, 8. If the signalless part is detected, a driving circuit 20 is actuated and a light emitting diode 21 is turned on. If switching operation is executed, the music can be reproduced from its head part.</p> |
