摘要
大同煤矿集团有线数字电视建设共约覆盖18.2万户,为使机顶盒能够满足有线数字电视系统的要求,特深入研究数字机顶盒原理以及选型要求,保障使用效果。机顶盒的全称叫做"数字电视机顶盒",英文缩写"STB"(Set-Top Box)。它是一种将数字电视信号转换成模拟信号的变换设备,它把经过数字化压缩的图像和声音信号解码还原成模拟信号送入普通的电视机。
Datong Coal Mine Group Digital Cable television coverage of the construction of a total of about 182,000, in order to meet the cable digital television system requirements, a special selection of the final version of specification. The full name of set-top box called the ＂digital TV set-top boxes,＂ the initials ＂STB＂ （Set-Top Box）. It is a digital television signal into an analog signal con- version device that digitally-based compressed image and sound signals into an analog signal into the decoder to restore the normal TV.
出处
《计算机与网络》
2009年第24期69-71,共3页
Computer & Network
关键词
有线数字电视
机顶盒
选型规范
Digital Cable TV
Set-top boxes
Selection standard
