Patent ID: 8970546
Filing Date: 2015-03-03
Classification: G06F

Abstract:
1. An input device, comprising: a plurality of transmitter electrodes comprising a plurality of common electrodes configured to operate in a first mode for capacitive sensing and configured to operate in a second mode for updating a display device; a plurality of receiver electrodes; a display processor coupled to the plurality of transmitter electrodes and configured to drive at least one of the transmitter electrodes with a transmitter signal for capacitive sensing; and a sensor processor coupled to the plurality of receiver electrodes and configured to receive resulting signals with the plurality of receiver electrodes when at least one of the common electrodes are driven for capacitive sensing, wherein the sensor processor comprises one or more receiver channels, and wherein each of the one or more receiver channels is coupled to a receiver electrode of the plurality of receiver electrodes, and each of the one or more receiver channels have: wherein each of the one or more receiver channels is configured to provide an output signal based on a comparison of the at least a portion of the resulting signals and the sensor processor reference signal.