有些电子装置是利用内置式红外电路同其它单向或双向装置进行通信联系的。例如,有些计算机装有允许它们与打印机连通的内置式红外电路。有些计算机键盘是利用内置式红外链路与其对应的计算机系统连通的。 红外链路是成本比较合理的解决办法,它们特别适用于便携式电子装置,其优点是实施简单、在电子装 Some electronic devices use built-in infrared circuits to communicate with other one-way or two-way devices. For example, some computers have a built-in infrared circuit that allows them to communicate with the printer. Some computer keyboards use built-in infrared links to communicate with their corresponding computer systems. Infrared link is a more cost-effective solution, they are particularly suitable for portable electronic devices, its advantage is the implementation of simple, electronic equipment