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1991年7月22日至25日,“全国有线电视网络技术体制研讨会”在北京召开。来自广播电影电视部科技司、科技情报所、地方司、音像处、广播科研所、设计院、标准化所,机电部通产司,部分省(市)广播电视厅(局)以及国内一些从事CATV研究、开发和生产单位的40多位专家出席了会议。广播电影电视部副总工程师兼科技司司长章之信主持了讨论。会上,十几位专家分别就国内外有线电视技术与设备发展动态、网络结构、干线传输方
July 22, 1991 to 25, “National Cable Network Technology Symposium” held in Beijing. From the Department of science and technology of radio and film and television science and technology, science and technology intelligence, local divisions, audio-visual department, radio research institutes, design institutes, standardization, mechanical and electrical department of the production department, some provincial (city) radio and television hall (bureau) More than 40 experts from research, development and production units attended the meeting. Zhang Zhixin, deputy chief engineer of Radio, Film and Television Department and chief of science and technology department, presided over the discussion. At the meeting, a dozen experts on domestic and international cable television technology and equipment development trends, network structure, trunk transmission side