| 摘要 |
<p>PURPOSE:To detect an intermusic accurately, by counting the number of pulses of the intermusic among pulses generated by a pulse generator corresponding to a run of a magnetic tape. CONSTITUTION:When the tape 1 is run at a high speed, a head 2 generates a reproduced signal, which is inputted to an AND gate 5 through an amplifier 3 and an inverter 4. Pulses from the pulse generator 6, on the other hand, are inputted to the AND gate 5 and when the signal from the head 2 shows a nonsignal part, the output of the inverter 4 goes up to H to input the pulses from the pules generator 6 to a counter through the gate 5. When its counted value reaches a prescribed value, an inter-music is judged and a signal is inputted to a control circuit 8 to place the tape recorder in a stop or playback state.</p> |
