| 摘要 |
<p>PURPOSE:To enable the remote control of function, by detecting the control signal for leading-in of recording selection from a wireless microphone at main body of the tape recorder and controlling the lead-in of recording selection function of the main body by this. CONSTITUTION:The switch 2 in a wireless microphone 1 is ON, and the signal from it is input to an RF circuit 3 via an antenna to operate a speaker 8 via an IF circuit 4, muting circuit 6 and power amplifier 7. Next, in case of recording selection and lead-in, the switch 2 is made OFF to eliminate the carrier output from the microphone 1, this is detected at the carrier detector 5 at the tape recorder and it is fed to a trailing detection circuit 13, and this output drives a fast feed solenoid 16 provided at the playback head 17 via a control circuit 12. Simultaneously, the output of the circuit 12 is fed back to the circuit 12 via tele-control muting circuit 9 and a detection circuit 11 between recordings, for muting the reproducing of output of the head 17.</p> |
