Basic introduction
Classification of video matrix
According to different ways of realizing video switching, video matrix is divided into analog matrix and digital matrix.
Simulation matrix:
Video switching is done at the analog video layer. Signal switching is mainly implemented using microcontrollers or more complex chips to control analog switches.
Numeric matrix:
Video switching is done at the digital video layer, and this process can be synchronous or asynchronous. The core of the digital matrix is the processing of digital video. It is necessary to add AD conversion at the video input end to convert the analog signal into a digital signal, and add DA conversion at the video output end to convert the digital signal into an analog signal output. The core part of video switching changes from the analog switch of the analog matrix to the processing and transmission of digital video.
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