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多画面功能(亦称画中画功能):屏幕上可同时显示大、小几个画面。大画面称主画面,小画面称子画面。目前画中画彩电主要分为视频画中画和高频画中画两种。视频画中画是指彩电画中画部分的信号,是通过机外视频信号源(如录像机)提供的;高频画中画是指彩电有两个高频头(调谐器),可分别独立调谐到两个电视台的节目。因此,多画面彩电可同时收看两个以上频道的电视节目,而且主、子画面可互换(即将主画面变为子画面,子
Multi-screen function (also known as picture-in-picture function): The screen can display large and small screen. Large screen, said the main screen, small screen, said sub-screen. At present, picture-in-picture TV is mainly divided into video picture-in-picture and high-frequency picture-in-picture two. Video PIP refers to the color picture in picture part of the signal is through the machine outside the video source (such as video recorders) provided; high-frequency picture in picture refers to color TV with two tuner (tuner), respectively, independent Tune to two television programs. Therefore, multi-screen color TV can watch more than two channels of television programs, and the main, sub-screen interchangeable (ie, the main screen into a sub-screen, sub