发明名称 Apparatus for controlling pickup arm in record or video disk player
摘要 A pickup arm controlling apparatus for an audio record or a video disk player, comprising an optical detecting device provided at the foremost end portion of a pickup arm for detecting a non-recorded groove portion, arranged so that a reproduction of the disk is performed by causing, due to the detecting device, the pickup arm to make a lead-in motion while the detecting action is being performed, and stopping the lead-in motion of the pickup arm upon detection of a predetermined non-recorded groove portion, and causing a stylus to descend onto the surface of the disk, wherein arrangement is provided so that, after the pickup arm has ceased its motion during the lead-in action, the pickup arm is forced to make a reversed run only for a trifle amount or distance to thereby compensate for an overshooting which could occur during the lead-in motion of the pickup arm. This trifle amount of the reversed run can be varied. Also, during a manual lead-in operation, the overshoot-compensating action is released.
申请公布号 US4437180(A) 申请公布日期 1984.03.13
申请号 US19810328517 申请日期 1981.12.08
申请人 NIPPON GAKKI SEIZO KABUSHIKI KAISHA 发明人 TAKEUCHI, ATSUSHI
分类号 G11B3/085;G11B3/095;(IPC1-7):G11B17/06;G11B17/00 主分类号 G11B3/085
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