摘要
针对电话机中对多组电话号码自动拨号的要求 ,采用单片微型计算机自动识别电话音频信号 ,分析了识别原理 ,设计了接口电路和软件 ,取得了很好的识别效果 。
Aiming at the function of auto-dial in designing telephone set, Single chip microcomputer is used in auto-recognizing audio signal of telephone The theory is put forward The interface circuit and the software are designed A good effect can be obtained The problem of realizing the function is solved
出处
《现代电子技术》
2002年第4期10-11,15,共3页
Modern Electronics Technique
