摘要
在模拟电视基础上发展起来的数字电视(DTV)技术,近几年有了飞速发展,中国将走DPTV,SDTV,HDTV三者并举逐步过渡的道路.DTV发展的核心是为了提高清晰度,与此相适应,采用动态聚焦枪、纯平面屏的PF CRT及为适应扫描频率提高而配套的SSS DY应运而生.同时,也对PF CRT的应用技术提出了新要求.
In the near future, the DTV technique of one the analogy TV basis is high-speed development． In china, DPTV, SDTV, HDTV will develop concurrently and step by step． The kernel of DTV development is to increase definition． At the same time, the PF CRT taking DAF gun pure flat and SSS DY of increase scanning frequency are emerge as the time require． At the same time, it takes the new require of PF CRT application．
出处
《电视技术》
北大核心
2001年第3期15-19,共5页
Video Engineering
关键词
数字电视
数字高清晰度电视
纯平面CRT
动态聚焦电路
消磁电路
磁界补正电路
digital television(DTV)； digital high definition television(HDTV)； pure flat CRT(PF CRT)； dynamic astigmatism and focus correction circuit(DAF)； degaussing circuit(DG)； magnetic field compensate circuit
