| 摘要 |
<p>PURPOSE:To improve the reliability at the time of the high speed searching by completely erasing a starting identifying signal when a renumbering action is executed and the starting identifying signal not to be full of the specified period is present. CONSTITUTION:When a high speed search mode of about 2000-fold speed is started by a reel motor as a first step and the rise of a start ID is detected, the reel motor is stopped and continuously, the tape is also stopped. As a second step, when a prescribed frame number is present from the rise of the start ID to the fall of the start ID, a tape is rewound up to the fall of the start ID again by a low speed searching mode, stopped, a correct program number from a tape starting edge is added, recorded, namely, the renumbering is executed by post recording mode. When a renumbering action is completed, the high speed searching mode is shifted again. Thus, the reliability of the high speed searching can be improved.</p> |
