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    • 1. 发明授权
    • Arrangement for preventing discharge current flow between a rotary
recording medium and a reproducing stylus in a rotary recording medium
reproducing apparatus
    • 用于防止旋转记录介质再现装置中旋转记录介质和再现记录笔之间的放电电流流动的装置
    • US4459691A
    • 1984-07-10
    • US313712
    • 1981-10-21
    • Kazuo Yamada
    • Kazuo Yamada
    • G11B9/06G11B3/58G11B9/07
    • G11B3/5836G11B9/075
    • A rotary recording medium reproducing apparatus comprises a rotary recording medium in which an information signal is recorded as variations in electrostatic capacitance, wherein the rotary recording medium is rotated, a reproducing stylus for making contact with and relatively scanning over the recording surface of the rotary recording medium upon reproduction, having an electrode for detecting the information signal as variations in electrostatic capacitance, a reference potential part functioning as a reference potential point, a first direct-current connection path for connecting the rotary recording medium with the reference potential part for direct-current, and a second direct-current connection path for connecting the reproducing stylus with the reference potential part for direct-current. The second direct-current connection path including a signal pickup circuit.
    • 旋转记录介质再现装置包括旋转记录介质,其中信息信号被记录为静电电容的变化,其中旋转记录介质旋转,用于与旋转记录的记录表面接触并相对扫描的再现触笔 介质在再现时具有用于检测作为静电电容变化的信息信号的电极,用作基准电位点的基准电位部分,用于将旋转记录介质连接到基准电位部分的第一直流连接路径, 电流和用于将再现触笔与用于直流电的参考电位部分连接的第二直流连接路径。 第二直流连接路径包括信号拾取电路。