摘要
数字电视具有高清晰的画面和高保真的声音,并有许多模拟电视没有的新功能。国外发达国家数字电视已投入使用,国内也正在发展之中。数字电视已成为电视事业的发展方向。
Digital TV hasts its high - definition picture and high - fidelity sound. It can transmit more programs without broadening its bandwidth and will join computer and commnication net work in offering multiplemedium TV. AU. SO. technical standard for digital TV has been worked out, which stipulates a system of picture resolution. The digital TV channels will be opened in autumn 1988 in Amrica.In China, such channel will also be in trial operation before National Day this year. Digital TV will certainly open up a new era for the development of televition.
出处
《株洲工学院学报》
1999年第4期47-48,共2页
Journal of Zhuzhou Institute of Technology