| 摘要 |
<p>There is provided a magnetic recording/reproduction apparatus adapted to record/reproduce a video signal, a digital signal, and a FM audio signal at the surface layer portion of the magnetic layer of a magnetic tape, the intermediate layer portion thereof, and the lower layer portion thereof, respectively. This apparatus is provided with on the recording side thereof, a first modulator (2) for generating a frequency modulated audio signal, a first rotary head (6a, 6b) for recording the audio signal from the first modulator at a lower layer portion of the magnetic tape, a second modulator (14) for generating a digital signal having undergone a poly-phase differential phase shift modulation, an amplitude change elimination (15) circuit such as a limiter for eliminating changes in the amplitude of the digital signal from the second modulator, a second rotary head (17a, 17b) for recording the digital signal from the second modulator at an intermediate layer portion thereof, a video signal processing circuit (8) for processing a video signal, and a third rotary head (10a, 10b) for recording the video signal from the video signal processing circuit at a upper layer portion thereof. This apparatus is also provided on the reproduction side, with a circuit configuration corresponding to the above-mentioned circuit configuration on the recording side in order to satisfactorily reproduce the above-mentioned three kinds of recorded signals.</p> |
