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

[Lawrence Wilkinson]

On Sun, 2005-01-30 at 14:38, Jules Richardson wrote:
> does anyone happen to have a schematic for a simple circuit to extract
> sync information from a sync-on-green video signal? 
> 
Maybe this will help, it also has a few useful links:
http://www.hut.fi/Misc/Electronics/faq/vga2rgb/scart.html
-- 
Lawrence Wilkinson                                 lawrence at ljw.me.uk
Ph +44(0)1869-811059                             http://www.ljw.me.uk