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数字高清晰度电视:其拍摄、编辑、制作、播出、传输,接收等一系列电视信号的播出和接收全过程都使用数字技术。数字高清晰度电视是数字电视(D TV)标准中最高级的一种,简称为H D TV。它是水平扫描行数至少为720行的高解析度的电视,宽屏模式为16:9,并且采用多通道传送。H D TV的
Digital high-definition television: its shooting, editing, production, broadcast, transmission, reception and a series of television signals broadcast and receive the entire process using digital technology. Digital HDTV is the most advanced type of digital television (DTV) standard, referred to as H D TV. It is a high definition television with a horizontal scan of at least 720 lines in widescreen 16: 9 mode and multi-channel transmission. H D TV’s