A lawsuit has been filed against Nintendo by a US-based firm, which claims that the Wii tramples over four patents for on-screen navigation and control technology. Hillcrest Labs owns three patents relating to a “handheld three-dimensional pointing device” and another for a “navigation interface display system that graphically …
All old hat..
I read about this technology in the early 60s and the Sci Fi books were all old then!
I take it these "patents" are in the US.