Split screen recording video

[Parenta]

Hi,

I want to make a mobile system for recording video from a cam and the same time and in the same picture record data from the lcd-dislay of a device.
The device is a metal detector.
So, my question is if anybody have experience how to do this and want to help me?

:grin:

 

[Parenta]

So, now I have the solution for picture in picture from two cams. Is it possible to change LCD-display signals on the device so it can be sent as signals from the other cam?
Is there such a thing as a converter for this purpose?