| 摘要 |
PURPOSE:To record the information as much as possible and at the same time to reduce the searching time, by detecting that a pickup reaches the position which is inside by nearly a prescribed width from the terminal edge of the recorded part of the readout signal, and stopping the quick forwarding action. CONSTITUTION:The width in the direction of a recording enable disk radius is set at a constant value W0, and the width W1 is slightly larger than the maximum quick forward distance of one time which is obtained in the forward mode of the disk radius direction between a recording disk and a pickup in the reproduction mode. In such case, the information is performed so as to set the recording width is set at W1 for the readout signal showing the termination of the recorded part of the information in case of WS<=W0-W1 (WS: width of the recorded part of information. While the part of W0-WS is defined as the recorded part of the readout signal in the case of WS>W0-W1. At the same time, the minimum width of the recorded part of the readout signal is set at a prescribed width W2 which is larger than a distance during the pickup receives a stop command of the forward action and stops the action. |
