After more than 20 years of development and precipitation, the market demand for the matrix has been increasing year by year. In particular, the market for digital matrix has clearly risen in the past two years. The demand rate has remained at around 15%. The relevant research institutions predict that the market for video matrix will reach 14 by 2014. 100 million yuan.
What is a video matrix? What is the classification and what is the role?
Simply speaking, it is a device that switches the M input signal to the N output terminal according to requirements (this signal can be audio, video, or mixed). See how much you can relate here to the concept of previous contact matrix algorithms. And the operation process is relatively simple and can be controlled by other devices such as a remote controller or a keyboard.
In accordance with the different ways to achieve video switching, mainly can be classified into two categories, namely, analog matrix and digital matrix. Analog video matrix video switching is done at the analog video layer. The signal switching is mainly realized by a single-chip microcomputer or a more complex chip-controlled analog switch; the digital video matrix, ie video switching, is completed in the digital video layer. The core of the digital matrix is ​​the processing of digital video. It is necessary to add AD conversion at the video input, change the analog signal to a digital signal, increase DA conversion at the video output, and convert the digital signal to analog signal output.
For the role of the video matrix, in reality we can often see the staff sitting in front of the monitor by operating some buttons to monitor the on-site environment. This monitoring can be said to have been applied widely in our life. By switching the signal, any one input is displayed on the set display terminal, and a series of operations such as zooming in, zooming out, zooming in, zooming out the lens, and the like can be performed. This can not only play a role in monitoring, but also can largely avoid the waste of one input terminal corresponding to one input signal. This is the convenient operation of the video matrix.
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