| 摘要 |
PURPOSE:To prevent a video recording mistake due to a clogging fault by controlling the output of a video head. CONSTITUTION:A video head 2 has no clogging fault when the output of the head 2 is set at a sufficiently high level. Thus it is possible to proceed to the next video recording process directly. In case the output level of the head 2 is reduced, the head 2 is cleaned to solve the clogging problem. This can prevent the subsequent video recording mistakes. While the recording process is set back to the recorded mistake area after the head 2 is cleaned in case the output of the head 2 is reduced down to such a level to produce a video recording mistake. Thus the video recording/reproduction is possible with no mistake. |
