Introduces two usual remotecontrolsignal encoding methods: pulse width modulation, pulse space ratio modulation.
介绍了两种常用的红外遥控信号的编码方法：脉冲占空比编码调制，脉冲宽度编码调制。
2
The remotecontrol for back-up signal management.
备份信号的遥控管理。
3
The car is fitted with a remote immobilizer and a radio signal from a control center miles away will ensure that once the thief switches the engine off, he will not be able to start it again.