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    • 7. 发明授权
    • FM-AM converter
    • FM-AM转换器
    • US3983487A
    • 1976-09-28
    • US602186
    • 1975-08-06
    • Masaharu Ohno
    • Masaharu Ohno
    • H03C1/50H04B1/06
    • H03C1/50
    • An FM-AM converter in which the FM signal is applied to a slope filter in a transmission system. The resulting amplitude modulated FM signal is applied to a circuit that derives a control signal corresponding to the mean value of the amplitude modulated FM signal and uses this control signal to control either the gain of the FM signal applied to the slope filter or the frequency response of the slope filter so that the amplitude of the amplitude modulated FM signal will have a predetermined mean value.
    • FM-AM转换器,其中FM信号被施加到传输系统中的斜率滤波器。 所得到的幅度调制FM信号被施加到导出与调幅FM信号的平均值对应的控制信号的电路,并且使用该控制信号来控制施加到斜率滤波器的FM信号的增益或频率响应 使得幅度调制的FM信号的振幅将具有预定的平均值。