Patent ID: 8749486
Filing Date: 2014-06-10
Classification: G06F

Abstract:
1. An apparatus for providing touch control information, the apparatus comprising: a control surface supported at one or more support positions and adapted to move in response to pressure applied at a location on the control surface; a first sensor, coupled to the control surface at a first sensing position, distinct from the one or more support positions, and operable to produce a first sensed signal in response to motion of the control surface at the first sensing position, the first sensed signal indicative of a change in a rotation angle of the control surface as the location of the applied pressure moves from a first touch position on the control surface to a second touch position on the control surface over a time interval; and a processing unit operable to receive the first sensed signal and to compute a change in the location of the applied pressure over the time interval from the first sensed signal, wherein the touch control information is derived from the change in the location of the applied pressure.