@Megaman79: Me? I don't know the Nintendos patent. What i mostly know about why the pointer system was designed as it is, is because of the other patents considering the pointer.
Wii Remotes pointer is designed "backwards" in relation to other pointing devices in the market, since usually the pointing device is a "transmitter" -type of device, sending a signal for the sensor, while Wii Remote is the "receiver", having a camera inside of it to photograph IR source.
Accelerometers, i believe, doesn't have much to patent anymore.
In the end, since Wii Remote doesn't have any tech that didn't exist already or haven't been used in similar form before, i doubt there's much patents considering the tech in it, outside maybe the pointer, so the patents propably are mostly made for the shape and form of the controller(s).
Ei Kiinasti.
Eikä Japanisti.
Vaan pannaan jalalla koreasti.
Nintendo games sell only on Nintendo system.







