Vincent Le Chevalier wrote:
> Then if I'm understanding correctly, the patent applicability is decided 
> by looking at the final purpose of the use of the thing patented?

To answer technically, the patent applicability is decided by looking at the 
claims. If you claim "A method for processing photographs to reduce 
red-eye", then to violate it, someone has to work with photographs and has 
to reduce red-eye. The exact same pixel math applied to a photo without any 
eyes in it isn't violating the patent.

But it depends on the claim.

I've never seen a claim that says "We claim that aX^2 +bX +c = 0 is ...."

-- 
   Darren New, San Diego CA, USA (PST)
   Insanity is a small city on the western
   border of the State of Mind.

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