| 摘要 |
<p>PURPOSE:To record surely a program of FM broadcast or the like on an idle track when said program, for instance, is required to record urgently, by performing the reproducing operation for 1-2sec to detect automatically an unrecorded track, and recording an audio signal there. CONSTITUTION:When a key 3 is operated, a system controller 11 performs the reproducing operation for 1-2sec, and a gate circuit 43 selects and outputs recorded data on the first-sixth tracks read out from a head HA, and only at M.T.S discrimination signal is taken out by a band pass filter 44. A Schmitt circuit 47 outputs signal '1' or '0' in accordance with the discrimination signal recording state, and a shift register 48 reads the output signal of the circuit 47 and shifts it successively. The system controller 11 judges whether an unrecorded track exists or not in accordance with latch data of a latch circuit 50, and a track selecting signal PSW is outputted from a PCM control signal generating circuit 13 to drive a track indicator 17 corresponding to the unrecorded track. The recording operation of the audio signal is started by a PCM recording circuit 24.</p> |
