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    • 1. 发明授权
    • Electronic editing control apparatus for a video tape recorder
    • 用于录像机的电子编辑控制装置
    • US4358797A
    • 1982-11-09
    • US123644
    • 1980-02-22
    • Hideo NishijimaIsao FukushimaHajime Yokota
    • Hideo NishijimaIsao FukushimaHajime Yokota
    • H04N5/7826G11B15/18G11B15/467G11B15/48G11B15/665G11B27/02G11B27/024H04N5/78G11B27/08
    • G11B15/1808G11B15/48G11B15/6656G11B27/024G11B2220/90
    • When operation mode is switched from recording to pause mode, a magnetic tape on which signals were recorded previously is slightly rewound backward by a predetermined length and is maintained in the pause mode operation state. When the pause condition is released, reproducing operation is performed to detect a phase difference between the reproduced control signal and a control signal of a video signal to be newly recorded. The tape speed is rapidly changed in accordance with the detected phase difference, so that the phase difference between the reproduced control signal and the control signal to be recorded is reduced to zero. Then, when a discontinuous scene recording is performed by switching from pause to recording operation mode, the phase coincidence has been achieved thereby enabling the phase-coincidence recording of video signals. Thus, upon reproducing, a clear picture with no disturbance can be presented even at the interconnection of signals for different scenes.
    • 当操作模式从记录切换到暂停模式时,先前记录了信号的磁带向后重新预定长度并保持在暂停模式操作状态。 当释放暂停条件时,执行再现操作以检测再现的控制信号和要被新记录的视频信号的控制信号之间的相位差。 磁带速度根据检测到的相位差而迅速变化,从而将再现的控制信号和要记录的控制信号之间的相位差减小到零。 然后,当通过从暂停切换到记录操作模式执行不连续的场景记录时,已经实现了相位一致,从而实现了视频信号的相位一致记录。 因此,在再现时,即使在不同场景的信号的互连时也可以呈现没有干扰的清晰图像。