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    • 17. 发明授权
    • Control system for optical information signal reproduction device
    • 光信息信号再现装置控制系统
    • US4539664A
    • 1985-09-03
    • US380343
    • 1982-05-20
    • Masahiro DeguchiMitsuro MoriyaNoboru WakamiYasuhiro GotoKazuharu Shiragami
    • Masahiro DeguchiMitsuro MoriyaNoboru WakamiYasuhiro GotoKazuharu Shiragami
    • G11B7/085G11B21/08G11B7/00
    • G11B7/08564G11B21/085G11B7/08517G11B7/08541Y10S358/907
    • In a device for reproducing the information, especially the video signal optically, magnetically or otherwise recorded on the spiral or concentric track on a disk-shaped recording medium, a control system for controlling the radially inward or outward shift or jump of a reproduction transducer from one track to another for effecting, in addition to the normal reproduction, the special effect reproductions such as still picture, slow, fast and reverse motions. The control system comprising a shifting means for shifting or jumping the transducer in the radial directions substantially perpendicular to the tracks, a control means for maintaining the transducer to scan the desired track, and a detecting means for detecting whether or not the transducer has been shifted or jumped and brought to the desired track and generating the output signal in response to which the shifting means is disabled to decelerate and stop the shifting or jumping of the transducer.
    • 在用于再现信息的装置中,特别是视频信号以磁性或其他方式记录在盘形记录介质上的螺旋或同心轨道上的控制系统,用于控制再现传感器的径向向内或向外移位或跳跃 除了正常的复制之外,还有一条轨道可以实现特殊效果的复制,如静态图像,慢速,快速和反向运动。 所述控制系统包括用于在基本上垂直于所述轨道的径向方向上移动或跳跃所述换能器的移动装置,用于保持所述换能器扫描期望轨道的控制装置,以及用于检测所述换能器是否已被移位的检测装置 或者跳跃并被带到期望的轨道并产生输出信号,响应于该输出信号,移位装置被禁用以减速并停止换能器的换档或跳跃。