Patent ID: 8400431

Claim:
An electronic appliance including a processor, a computer-readable medium, an input device, and a display device, the computer-readable medium including instructions for execution by a processor, the instructions when executed causing the processor to perform a method to obtain an error map for locations in a touch sensor, the method comprising: inputting, using the input device of the electronic appliance, a geometry for a touch sensor layout; inputting, using the input device of the electronic appliance, coordinates for a centroid of sensing elements in the touch sensor layout; inputting, using the input device of the electronic appliance, a touch geometry; selecting, using the input device of the electronic appliance, a plurality of test points on the touch sensor layout; generating, by the processor of the electronic appliance, a calculated touch location for each of the plurality of test points; generating, by the processor of the electronic appliance, an error map from the calculated touch locations and the test points; generating, by the processor of the electronic appliance, an error measure from the error map; displaying, on a display device coupled to the electronic appliance, the generated error map and the generated error measure; and adjusting, using the input device of the electronic appliance, the geometry for the touch sensor layout if the error measure is larger than a tolerance value.