| 摘要 |
<p>PURPOSE:To realize a consecutive recording with always stable condition by correcting the data of a reference signal used in a recording mode so as to made it almost equal to phase difference detecting data at the time of preliminary reproducing mode. CONSTITUTION:The phase difference(A)between a capstan reference signal REF immediately after a command to transfer from the preliminary reproducing mode to the recording mode is received and a reproduced control signal PCTL, and the phase difference (B) between the capstan reference signal REF and a CPG signal frequency-dividing a capstan FG signal are obtained respectively in 1st and 3rd counter circuits 6,8. The data adding the (+B-A) to the capstan reference signal after transferred to the recording mode are inputted as the phase reference data, and also the signals frequency-dividing the capstan FG signal are inputted as the capstan data, to a phase detector 3 by an arithmetic device 11. By these phase difference output data, a phase control of the capstan driving system is performed.</p> |
