The new system use an infrared receiving chip named CX20106 to deal with the received ultrasonic wave, such as magnification, filtering and shaping.
使用CX20106红外接收芯片对接收的超声波进行放大，滤波，整形。
The system is composed of a infrared telecontrol transmitter and the circuits of infrared receiving and display, input detecting and output controlling commanded by the 89c51 single-chip computer.
该系统主要由红外遥控发射器和89c51单片机控制的红外接收电路、显示电路以及报警输入检测电路、输出控制电路构成。
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