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单词
digital TV
释义
digital TV
Encyclopedia
理学
数字电视
释
digital television;digital TV
数字电视
从制作到发射、传输、接收的所有环节都使用数字信号的电视系统。其将传统的模拟电视信号经过抽样、量化转换为数字信号,然后在数字信号的基础上进行各种处理、传输、存储和记录,也可以用电子计算机进行处理、存储和控制。采用数字技术不仅使各种电视设备获得比原有模拟设备更高的性能,而且还具有模拟技术不能实现的新功能,使电视技术步入崭新时代。
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更新时间:2025/7/5 18:55:13