Weird "patent" given the fact that smartphones are perfectly usable as PC controllers since around 2013-2014 and Nexus 4 and 5, LG G Pro, LG G2, Galaxy S4 and similar phones. Bluetooth connection is enough.
A patent shows a new feature that we may soon be able to welcome on the successor to the Nintendo Switch - and it may have the potential to revolutionize local multiplayer games.