| 摘要 |
<p>PURPOSE:To perform smooth joint recording by generating a delay trapezoidal wave signal which has the phase delayed by the phase difference between a reproduced control signal and a capstan FG frequency divided signal in the assembling mode and sampling this generated signal as the signal to be sampled to generate a capstan phase error signal. CONSTITUTION:A phase difference detecting part 2 which detects the phase difference between the capstan FG frequency divided signal and the reproduced control signal in the assembling mode and a delay means 3 which delays the phase of the capstan trapezoidal wave signal to generate the delay trapezoidal wave signal are provided. A sampling and holding circuit 5 is provided which samples the trapezoidal wave signal by the reproduced control signal in the assembling mode and uses the delay trapezoidal wave signal as the signal to be sampled to generate the capstan phase error signal after switching to the recording mode. Thus, the phase deviation of the capstan phase error signal between the assembling mode and the recording mode is eliminated to perform smooth joint recording.</p> |
