extracting H/V sync from sync-on-green video signal?

[James Carter]

On Mon, 2005-01-31 at 02:08, der Mouse wrote:
> > I keep on finding sync combining circuits that'll do seperate sync to
> > sync on green everywhere, but nothing to do the reverse!
> 
> I thought the right thing there was to simply connect the green output
> to both the green video input and the sync input.

that approach has worked for me before (connecting an SGI Indy to a
projector). YMMV, of course.

-- 
 James F. Carter                  http://www.jfc.org.uk/