| 摘要 |
<p>PURPOSE:To correct the deviation of tracking by generating stably a tracking control signal which has the level changed in accordance with only the deviation quantity of tracking. CONSTITUTION:A signal which is shifted from a pilot signal, which is recorded on a current tracing track, by a preliminarily determined frequency fA is used as a pilot signal which should be mixed with a pilot signal, which is extracted in an LPF14 at a reproducing time of a tape 1, in a mixer 11. The amplitude of the pilot signal of this track itself included in mixed outputs is taken out as the amplitude of a preliminarily determined frequency by a means 27, and the gain of the extracted pilot signal is controlled by a means 22 so that this amplitude is constant. Thus, the tracking control signal is generated stably by a means 19.</p> |
