Pulse ratio modulation, a method of recording biomedical signals with magnetic tape, is presented.

本文介绍一种磁带记录生物医学信号的方法——脉冲比例调制。

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Pulse width Modulation device is a circuit which can produce square wave signal with fixed period and adjustable pulse duration ratio (pulse width).

脉宽调制器是一种能够产生周期固定而占空比(脉宽)可调的方波信号的电路。

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Introduces two usual remote control signal 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。

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