Patent ID: 9501193
Filing Date: 2016-11-22
CPC Classification: G06F

Claim Text:
1. An input device, comprising: a plurality of transmitter electrodes, wherein each of the plurality of transmitter signals comprises at least one common electrode of the display configured to be driven for display updating and capacitive sensing; a plurality of receiver electrodes; a display processor configured to drive at least one transmitter electrode of the plurality transmitter electrodes with a transmitter signal for capacitive sensing; and a sensor processor configured to receive resulting signals with the plurality of receiver electrodes when the at least one transmitter electrode is driven, wherein the sensor processor comprises: a reference channel configured to provide a reference channel output signal, wherein the reference channel has a first reference channel input port that is configured to receive a reference channel input signal, wherein the reference channel input signal is based on the transmitter signal; and wherein each of the one or more receiver channels is configured to provide an output signal based on at least a portion of the resulting signals and the reference channel output signal.