In one embodiment, a method includes determining, based on output from a sensor, a proximity of an object to a device and comparing the determined proximity to a threshold proximity. The method further includes selecting, based on the comparison, an interaction mode for processing interactions between the object and the device. The method further includes processing interactions between the object and the device according to the selected interaction mode.

Interaction modes for object-device interactions

The present disclosure is directed to a system and method to remove common mode noise projected onto a touch sensor array from a display. The system is configured to activate two rows of electrodes at the same time, while coupling remaining rows of electrodes to ground. A first one of the two activated rows is used for detection of a touch and a second one of the two activated rows is used to detect common mode noise from the display. The common mode noise detected by the second row is removed from signals received from a plurality of columns of the touch sensor array.

Common mode noise reduction in capacitive touch sensing

***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***Interaction sensing

The embodiments herein are generally directed to using a current-mode CBC circuit to maintain a voltage bias setting at a receiver when performing capacitive sensing. To do so, the CBC circuit may compensate for the change in voltage at a receiver by providing a current at the input of the receiver. Instead of using a passive CBC capacitor for each receiver, the input device may use a single CBC capacitor and a plurality of current mirrors to source and sink the current required to correct the input voltage at a plurality of receivers. As a result, the current-mode CBC circuit includes only one passive capacitor (or bank of capacitors) and a plurality of current mirrors which may provide space and cost benefits relative to a CBC circuit that uses a passive capacitor (or bank of capacitors) for each receiver channel.

Current-mode coarse-baseline-correction

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Current-mode coarse-baseline-correction