Patent ID: 8125455

Claim:
A method for normalizing output values obtained from sensors in one or more regions in an event sensor panel to enable the sensors in any region to trigger virtual buttons given a similar amount of touch or hover, comprising: determining the region associated with each output value obtained from the sensors, each region containing a plurality of sensors; applying offset adjustment values and gain multiplication factors to each of the output values obtained from the sensors in the sensor panel to generate normalized output values, the applied offset adjustment values and gain multiplication factors selected in accordance with the region associated with each output value; and determining whether virtual buttons associated with the sensors have been triggered by comparing the normalized output values for the sensors with a fixed threshold; wherein each region is associated with an offset adjustment value and a gain multiplication factor; and wherein, for each region, the offset adjustment value and the gain multiplication factor associated with that region are applied to the output values obtained from the sensors associated with that region.