It seems Sony has been working on a variety of controllers for PS4.

This new patent which was filed in 2012, is about something called the ‘PlayStation Eyepad’.

It has the form factor of a tablet and can work in conjunction with cameras that are actually on both sides of the device to generate 3D virtual buttons and more. You can then use it as any other normal controller. It also features a touchpad, which the PS4 controller was also rumoured to have.

Here’s the official description for it: