论文部分内容阅读
我国有线数字电视发展概况有线电视1948年诞生于美国的宾夕法尼亚州,由一些电视机零售商开发,利用同轴电缆把地面电视信号传送到看不到或看不好电视信号的地方。有线电视在我国出现较晚,1964年开始立项研究,1974年北京饭店第一个公用天线系统安装使用,标志着中国有线电视的诞生。
The development of China’s cable digital TV cable was born in 1948 in Pennsylvania, the United States, developed by a number of television retailers, the use of coaxial cable to the terrestrial television signal can not see or look bad television signal. Cable television appeared later in our country. In 1964, we started research on the project. In 1974, the first public antenna system was installed and used in Beijing Hotel, marking the birth of China’s cable television.