发明授权
US3870320A Pickup arm control for video disc player 失效
视频光盘播放器的拾音臂控制

Pickup arm control for video disc player
摘要:
A transducer signal pickup assembly is positioned over a desired portion of video encoded disc medium by apparatus arranged to selectively engage different portions of a first rotating belt to effect movement of the pickup assembly toward or away from the center of the disc. Further positioning of the transducer assembly in a tracking mode for facilitating playback of the signal encoded disc is provided by engaging a second rotating belt.
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