I have searched the internet as best I can, but I am coming up empty handed. I would like to build a video switch box that takes up to four input signals and combines them onto one screen. ie a QUAD split screen of four video inputs so that you can view all four inputs simultanouesly.
Although this is a very common feature for stock standard, off the shelf Security CAM based equipment no one seems to have attempted this at home ...
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I have found numerous articles on sequential video switching, including one that was published by Elektor but despite finding many datasheets on Ics and product brochues on complete products, all I want is a diagram that shows how to create such a system DIY.
Does anyone one know where I can get information on this topic, cct diagram etc - it would be greatly appreciated.
Zarmaxim
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