| 摘要 |
<p>PURPOSE:To simplify a circuit constitution, and to reduce an error rate in a data in a recording/reproducing time, by multiplexing and recording a tracking control pilot signal with a frequency lower than that of a clock data on an information data. CONSTITUTION:Pilot signals f1-f4 at a generator 43 are sent out in order at every 1/60sec with four logic levels of a 60PG and a 1/2 frequency dividing signal at a switcher 108, then being supplied to a switching circuit 42. And based on a clock pulse CLK with a frequency considerably higher than 60Hz, it is gated 109, and is supplied to heads HA-HF at every 1/60sec, then being recorded time-divisionally with an audio signal and a video signal.</p> |
