MT8880的音信号检测在交换系统中的应用 |
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引用本文: | 赵阳. MT8880的音信号检测在交换系统中的应用[J]. 电子工程师, 2001, 27(4): 41-42,48 |
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作者姓名: | 赵阳 |
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作者单位: | 南京邮电学院通信工程系 |
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摘 要: | 主要介绍了MT8880忙音检测功能在交换系统中的应用,给出了忙音检测的算法,并利用软件控制DTMF的时钟Φ2,减少了电路设计的复杂性。
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关 键 词: | MT8880 忙音检测 交换系统 音信号检测 单片机 |
Application of Signal Tone Detecting of MT8880 in Switching System |
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Abstract: | In this paper, the application of busy tone detecting function of MT8880 in switching system is introduced and a busy tone detecting algorithm is proposed .Complexity is reduced as the clock Ф2 is controlled by software. |
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Keywords: | MT8880 busy tone detecting switching system |
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