I would not worry about this patent. There is prior art. For instance, this paper I wrote in 2002 uses techniques which overlap with their claims: http://www.s

I would not worry about this patent. There is prior art. For instance, this paper I wrote in 2002 uses techniques which overlap with their claims: http://www.springerlink.com/content/ujrmkgp929v6je7p/ http://www.springerlink.com/content/ujrmkgp929v6je7p/