QUESTION for someone with LEGAL KNOWLEDGE: Can Nintendo patents actually hold up to stop other companies from stealing their controller idea? OR was the WaveBird, Rumble Pack, Analog Stick under the same so-called Nintendo patent that does absolutely nothing?
The patent protects a specific implementation. If Sony used different methods to gather the same data they are free to do it but they can't use the exact same method. When they copied the rumble they changed some parts around, attached the decentered weight differently and thus avoided Nintendo's patent (while running straight into Immersion's). Since there are many implementations for measuring position/movement in space there is probably a different way that Sony can use.