Sony could be preparing a new version of its Move controller for PS4.
"A controller device to interface with a computer gaming system includes a body having a handle and an object disposed at one end of the handle,” the patent reads.
“A touch surface is disposed on one side of the handle. The touch surface has an indicator that is identified by a surface characteristic on the touch surface. The touch surface provides an area for receiving directionality control in response to interfacing by a finger of a user.
"In addition to the touch surface, a plurality of buttons are disposed on the body. A circuitry is disposed in the body of the controller. The circuitry is configured to receive data indicative of a directionality control and transmit the data to a game console for impacting an action by a program executing on the computer gaming system."
The most recent sales data for Move stood at 15m units as of November 2012.