http://www.detnews.com/2003/commuting/0310/26/a01-307303.htm

Are you trying to detect the vehicles or trigger the lights?

On Mon, Jun 14, 2004 at 10:34:34AM -0600, Gus S.Calabrese wrote:
> Hello Gurus
>
> I think that emergency vehicles are detected at
> stoplights.  Is there a standard way this is done
> that can be adapted to a PIC ?
>
> Is emergency vehicle detection a patented process ?
> Can anyone use it in a product ?

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Alex Harford
http://www.alexharford.com
alex-spam@alexharford.com       Tel: (604) 738-5674

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