Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!know!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!julius.cs.uiuc.edu!apple!agate!eos!jbm
From: jbm@eos.UUCP (Jeffrey Mulligan)
Newsgroups: comp.graphics
Subject: Re: Video Window
Message-ID: <7192@eos.UUCP>
Date: 4 Sep 90 18:24:12 GMT
References: <1990Sep3.033831.2543@dhw68k.cts.com>
Distribution: na
Organization: NASA Ames Research Center, California
Lines: 22

stein@dhw68k.cts.com (Rick 'Transputer' Stein) writes:

>In a related question, if you watch Club MTV on cable, you'll notice
>that they have a bunch of small monitors ganged together to build a very
>large television picture where all 9 (or 16) monitors display only a part
>of the camera's image.  How do they do that?
    ^^^^^^^^^^

You assume there's only one camera; is this known?

I suppose it could be done digitally with a zoom and scroll
frame buffer, where you compartmentalize the video ram with
one video controller per monitor.  Unless there is off-the-shelf
hardware that will do this (which I doubt) then it is probably
cheaper just to buy 9 ccd cameras and mount them rigidly together.
This is the high-bandwidth solution! :-)

-- 

	Jeff Mulligan (jbm@eos.arc.nasa.gov)
	NASA/Ames Research Ctr., Mail Stop 262-2, Moffet Field CA, 94035
	(415) 604-3745