| 闲态双音频警铃信号的精确检测 |
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| 引用本文： | 孙程坤,邵丙铣.闲态双音频警铃信号的精确检测[J].微电子学,1999,29(2):141-144. |
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| 作者姓名： | 孙程坤 邵丙铣 |
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| 作者单位： | 复旦大学国家微电子材料与元器件微分析中心 |
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| 摘 要： | 介绍了一种精确检测闲态双音频警铃信号的方法，给出了具体电路和应用实例。该电路不仅检测精确，而且具有很大的灵活性，对不同标准的音频信号的检测都具有一定的参考价值。
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| 关 键 词： | 双音频 计数器 开关电容滤波器 电话系统 检测 |
| 修稿时间： | 1998-07-07 |
Accurate Detection of Idle State Dual Tone Alerting Signals |
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| SUN Cheng-Kun,SHAO Bing-Xian.Accurate Detection of Idle State Dual Tone Alerting Signals[J].Microelectronics,1999,29(2):141-144. |
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| Authors: | SUN Cheng-Kun SHAO Bing-Xian |
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| Abstract: | A method for precise of idle state dual tone alerting signals is described.The detailed Circuit is presented and application examples are given.The circuit is simple,but accurate and flexible,and it is useful for detection of different alerting signals. |
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| Keywords: | Telecommunication |
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