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介绍了红外遥控发射和接收的原理，提出了一种用ＰＬＤ（可编程逻辑器件）进行解码的方案，并分别用ＥＰＲＯＭ和ＧＡＬ实现。该方案思路新颖、原理简单、工作可靠，可用于各种以键盘扫描为输入方式的智能仪器系统中。
The principle of infrared remote control transmitting and receiving is introduced. A scheme of decoding with PLD (Programmable Logic Device) is proposed and implemented with EPROM and GAL respectively. The novel idea of the program, the principle is simple, reliable, can be used for a variety of keyboard scanning as the input method of intelligent instrumentation systems.