| 可任意扩展的视音频切换器设计 |
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| 引用本文： | 黄华灿.可任意扩展的视音频切换器设计[J].电视技术,2002(5):62-64. |
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| 作者姓名： | 黄华灿 |
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| 作者单位： | 华侨大学电子工程系,福建,泉州,362011 |
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| 摘 要： | 介绍了手选和自动顺序切换均可任意扩展的视音频切换电路。解决了CD4017在链接中的计数脉冲定向。复位后补发脉冲等问题，使是自动顺序切换的通道数也可任意扩展。
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| 关 键 词： | 视音频切换器 设计 双重控制 D触发器 轻触开关 CD4017 |
| 文章编号： | 1002-8692(2002)05-0062-03 |
| 修稿时间： | 2001年11月23 |
Design of a freely extensible audio/video switcher |
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| HUANG Hua-can.Design of a freely extensible audio/video switcher[J].Tv Engineering,2002(5):62-64. |
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| Authors: | HUANG Hua-can |
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| Affiliation: | HUANG Hua-can |
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| Abstract: | A extendible Video-Audio Switcher circuit by hand-selecting or automatic sequential switching was in tro duced.The directionality of the counting pulse of CD4017in link and the reoutputing the com pensated pulse after a reset were solved,therefore,the pass channel number controlled by the automatic sequen tial switch-ing also can be arbitrarily extended. |
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| Keywords: | doubly control extending D trigger feature-touch switch |
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