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四芯的S端子多少年来,对于大部分人来说,对图像信号的认识不外有三种:射频信号、复合视频信号、S视频信号。射频信号是由复合视频信号调制到高频上的,普通电视机的天线输入端子即用于射频信号。复合视频信号的入出是用RCA端子,既是我们最常见的音视接口。S视频信号的入出是用四芯端子,俗称S端子。在清晰度上,S端子最高,复合视频次之,射频信号最差。随着DVD播放机和数字机顶盒的出现,为了
Four-core S terminal For many years, for most people, there are only three kinds of understanding of the image signal: RF signals, composite video signals, S-video signals. RF signal is modulated by the composite video signal to the high frequency, the normal TV antenna input terminal is used for radio frequency signals. Composed of video signals into the RCA terminal is used, is our most common audio and video interface. S video signal is to enter the four core terminals, commonly known as S-terminal. In definition, S terminal is the highest, followed by composite video, RF signal worst. With the advent of DVD players and digital set-top boxes, in order to