| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a device in which noiseless slow reproduction at a normal speed is attained by providing heads, each of amplifier and reproduction signal processing, write control and read control circuits. SOLUTION: A circuit 20 applies A/D conversion to a video signal and a circuit 21 writes the signal to a memory 22. Then a circuit 23 provides a phase or the like for a signal from the memory 22 to modulate the resulting signal into a signal proper to a recording transmission system. The modulated signal is amplified by an amplifier 24 and fed to heads 3RPA, 3RPB, by which the signal is recorded on a tape. Signals reproduced by heads 2PA, 2PB are amplified by an amplifier 25 and demodulated by a processing circuit 26. A phase or the like is detected from the demodulated signal and the result is fed to the circuits 33, 34. The circuit 34 uses the circuit 33 to select a write destination from the heads 2PA, 2PB and the resulting signal is fed to memories 290-299. The circuit 33 sends a write end pulse 1(a) to the circuit 31 by a signal from the circuit 26.</p> |
