电话声耦合中的数据传输

The Date Transmission in Telephone Voice-Coupling

本文介绍一种利用声耦合方式同步传输四位数据的方法，并给出具体电路。此方式克服了传统声耦合传输速率低、误码高、价格贵等缺点。

This paper describes a method which rnakes use of the voice-coupling technology to transmit 4bits date synchronously,and gives out the circuit principle. This method overcomes the shortages in trandi-tional voice-coupling transmission-Iow rate,high error-code rate,high price.