| 摘要 |
<p>PURPOSE:To obtain a copied tape with high picture quality not losing the quality of an original tape through high fidelity transmission and high precision servo by amplifying a signal read by a reproducing magnetic head with a preamplifier and supplying the amplitude signal to a recording magnetic head in a recorder directly without further modification. CONSTITUTION:A reproducing device is provided with an amplifier 32 preamplifying a reproduced signal read from a recorded magnetic tape with a reproducing magnetic head 4 to compensate a preceding line loss attended with the signal transmission and a reproducing servo circuit 33 outputting a vertical synchronizing signal detected from the reproducing signal. Moreover, a recorder 30 is provided, which has a recording magnetic held 21 recording a reproducing signal sent from the amplifier 32 through a simple line onto a copying magnetic tape as it is and a recording servo circuit 35 forming the same tracking condition as that by the reproducing servo circuit with the vertical synchronizing signal supplied from the reproducing servo circuit 33. Thus, the reproducing side and the recording side are arranged to the same tracking condition through the assistance of the vertical synchronizing signal and dubbing with less signal deterioration is implemented.</p> |
