The diagram is a bit goofy-looking, but then, that comes with the patent territory. It's sufficiently detailed enough that we can make out a guy, Wii Remote in hand, standing over a device that looks suspiciously like a Wii U tablet. He's also playing golf.
The patent, filed in October of last year but only published on Thursday, appears to show more details on Nintendo's plans to allow the Wii Remote and Wii U tablet to be used in concert. Obviously, it's easy to understand the benefits of using the combination for a golf game, with the remote and tablet allowing extreme accuracy when tracking the strength and angle of your swing.
According to the patent, the "moving" and "roll" direction of the ball would determined by the altitude of the controller. An image of the ball would be present on the tablet and this would be used to check when "contact" is made. While the tablet appears to have its own CPU, from what I can make out, all calculations would be handled by the console's processor.
The document goes on into crazy detail about exactly how the data transmitted from the peripherals would be used to calculate the trajectory of the ball, even going so far as to describe how difficult viewing the game from the tablet would be while its on the ground and why the TV is a much better option. Which sounds bloody obvious, but maybe par for the course (ha!) when it comes to patents.