遥控器信号处理器(RMC)

遥控器信号处理器(RMC)

遥控器输出信号的格式取决于供应商,因为它们尚未实现标准化。通常,当遥控器上的按钮被按下时,首先生成一个被称为先导信号的长脉冲,按钮信息紧随其后。摇控器信号处理器(RMC)将检测先导信号。即使当先导信号不存在时,RMC也将检测遥控器生成的信号。
RMC的典型操作如下:如果是红外遥控器,信号用红外载波传输到接收器。去除载波后,信号被传输到RMC。实际上,当电波在遥控器和接收器之间飞行时,信号有很多噪音。RMC对噪声进行扫频并恢复先导信号。当它识别出先导信号时,它会对CPU生成一个中断。

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采用遥控器信号处理器的微控制器产品如下。

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