Patent ID: 7903092

Claim:
A touch-sensitive user interface, comprising: a plurality of sensing areas arranged within a sensing region, each sensing area having a position within the sensing region; a measurement circuit coupled to the sensing areas and operable to generate output signals responsive to a coupling between a pointing object and respective ones of the sensing areas; and a controller operable to receive the output signals from the measurement circuit and to determine a selected one of the sensing areas by taking account of both the output signals associated with the sensing areas and the positions of the sensing areas within the sensing region such that sensing areas in parts of the sensing region that the pointing object passes over as the pointing object touches an intended sensing area are suppressed as being not intended by the user, wherein the coupling is a capacitive coupling and wherein a sensing area with a smaller output signal is selectable over a sensing area with a larger output signal based on the positions of the sensing areas, and wherein each sensing area is associated with a predefined ranking according to its position within the sensing region.