Check at www.extron.com.  I don't know if they have what you need, but
they have all kinds of vide amplifiers, matrix switchere, scan
converters, etc.  They should at least be able to point you in the right
direction.

You could also do a Yahoo search for video walls, but that would be too
easy.

James Tu wrote:

> Has anyone ever used hardware that allows you to split one VGA output
> from
> a graphics card into multiple monitors...such as for a video wall.
>
> I want to be able to specify, for example, a rectangle defined by
> pixels (1
> - 100)x(1 - 200) goes to monitor 1 and the rectangle defined by pixels
> (101
> - 200)x(1-200) goes to monitor 2, and so forth...these numbers are just
> examples.
>
> I've seen a video installation which used, what looked like, a rack
> mountable unit which had multiple outputs and a video input...I think
> I've
> heard that there are units out there that can take VGA or video
> signals and
> composite them.
> I just need to be able to work with VGA signals.
>
> What are those units called?  Where can I get my hands on one?  Thanks!
>
>
> James Tu
> james@2-bit-toys.com
>
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