| 摘要 |
<p>PURPOSE:To speedily lead in a noise bar which appears in a reproduced screen at the time of the shifting by raising the signal level of a control signal compared to the pre-shifting for a prescribed time when a system shifts from special reproduction including still picture reproduction or fast forwarding reproduction to normal reproduction. CONSTITUTION:The signal level of the control signal is raised compared to the pre-shifting for the prescribed time when the system shifts from special reproduction including still picture reproduction or fast forwarding reproduction to normal reproduction. When the control signal having the high signal level, a capstan motor 3 is driven. When the system shifts from special reproduction to normal reproduction, the loop gain of a phase control system in a tracking controller 13 becomes larger compared to a shifting time such as normal reproduction, and the large phase control of the capstan motor 3 is executed at the time of the shifting. Thus, the noise bar appearing in the reproduced screen at the time of the shifting can speedily be led in.</p> |
