| 县级有线数字电视多通道字幕插播方案 |
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| 引用本文： | 刁立新,李必虎,储昭晖.县级有线数字电视多通道字幕插播方案[J].中国有线电视,2011(2):183-185. |
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| 作者姓名： | 刁立新 李必虎 储昭晖 |
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| 作者单位： | 安徽广电信息网络股份有限公司,安徽合肥,230088 |
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| 摘 要： | 通过对基于1 550 nm长距离模拟光纤传输系统下县级有线数字电视多路字幕插播的实践,解决了县级有线网络在加扰射频数字流情况下的多路字幕插播等问题,该方案在县级有线数字电视系统中具有广泛的应用前景。
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| 关 键 词： | 数字电视 字幕插播 加扰射频流 DVB-C选频器 |
County - level Multi - channel Digital TV Cable Network Subtitles Spots in the Design and Practice |
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| DIAO Li-xin,LI Bi-hu,CHU Zhao-hui.County - level Multi - channel Digital TV Cable Network Subtitles Spots in the Design and Practice[J].China Cable Television,2011(2):183-185. |
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| Authors: | DIAO Li-xin LI Bi-hu CHU Zhao-hui |
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| Institution: | DIAO Li-xin,LI Bi-hu,CHU Zhao-hui(Anhui Radio and Television Information Network Co.,Ltd,Anhui Hefei 230088,China) |
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| Abstract: | Through 1550nm long-distance fiber transmissions practice about analog optical system at the county level digital TV multi-channel subtitles.It is solved the major problem that county-level cable network in scrambled digital flow of multi-channel subtitles,and shows that the scheme in the cable digital TV system wide application prospect. |
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| Keywords: | digital television subtitles spots scrambling radio stream DVB-C frequency selection |
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