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数字电视正悄悄地向我们走来。继广播电视的卫星数字化传输之后 ,在近几年中建设起来的国家级、省级广播电视光缆传输网上的广播电视节目传输全是数字化的 ,付费电视、NVOD等业务的开展 ,机顶盒的入户更使我们感到数字电视已是我们生活中的一部分。在运行、维护实际工作中 ,我?
Digital TV is quietly coming to us. Following the satellite digitized transmission of radio and television, the transmission of radio and television programs at national and provincial radio and television optical cable transmission networks constructed in recent years is all digitalized. Pay TV, NVOD and other services are carried out. It even made us feel that digital television is already a part of our life. In the operation and maintenance of the actual work, I?