| 订户接口 |
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| 引用本文： | 陈华.订户接口[J].有线电视技术,2004,11(13):94-94. |
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| 作者姓名： | 陈华 |
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| 摘 要： | Thedownstreamsignalcontainsallofthesystem’sprogrammingplusadatachannelthatisusedtocommunicatewiththeboxfromtheheadend.Thesignalfromthetapisfedintoadiplexfilterwhilethesignalfromthefilterissplitintotwopaths.Partofthesignalispresentedtotheswitchwhichwhenactivatedpassesallofthesignalstoanotherdiplexfilter.Thesignalpassesthroughthefilterintothesubscriber’shome.Thesecondpathfortheinputfilterisdirectedintoadatareceiverthatistunedtothefrequencyofthedatachannel.Thereceiverdemodulatesthesignalandsen…
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| 关 键 词： | 下行信号 地址控制器 订户接口 视频点播 |
Subscriber interface |
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