Low cost memory station
    1.
    发明授权
    Low cost memory station 失效
    低成本记忆站

    公开(公告)号:US4159487A

    公开(公告)日:1979-06-26

    申请号:US720878

    申请日:1976-09-07

    CPC分类号: H03J7/28 H03J7/26

    摘要: An automatic TV tuner circuit responsive to a tuning voltage for tuning over a desired frequency reception range. The tuning voltage is generated by a staircase voltage generator. A discriminator produces an output signal having a nominal value when the receiver is tuned to a transmitted broadcast frequency and at a discriminator output having a predetermined difference from the nominal value, a sequence control circuit halts the operation of the staircase generator and regulates the tuning voltage in a continuous manner under control of the discriminator output signal to complete the tuning process.

    摘要翻译: 一种响应于调谐电压的自动TV调谐器电路,用于在期望的频率接收范围内进行调谐。 调谐电压由阶梯电压发生器产生。 当接收机被调谐到发射的广播频率并且在具有与标称值的预定差异的鉴别器输出时,鉴频器产生具有标称值的输出信号,序列控制电路停止阶梯发生器的操作并调节调谐电压 在鉴别器输出信号的控制下以连续的方式完成调谐过程。