Abstract: An input device, system, and processing system are disclosed for a display device with an integrated sensing device. The input device comprises a plurality of sensor electrodes, and a processing system coupled with the plurality of sensor electrodes. The processing system is configured to determine one or more low-noise periods associated with display update timing of the display device, and process, during the determined one or more low-noise periods, resulting signals received from the plurality of sensor electrodes.

Abstract: An input device and associated processing system and method are disclosed for operating a plurality of sensor electrodes. The method comprises driving, during a first period, a first portion of a plurality of sensor electrodes to a first voltage. The first portion corresponds to a first number of sensor electrodes. The method further comprises driving, during the first period, a second portion of the plurality of sensor electrodes to a second voltage less than the first voltage. The second portion corresponds to a second number of sensor electrodes. The first number and second number are based on a plurality of digital codes used to drive the first and second portions. The method further comprises transferring charge between the first portion and second portion to drive the second portion to an intermediate voltage, and driving, during a second period, the second portion from the intermediate voltage to the first voltage.

Abstract: An input device, system, and processing system are disclosed for a display device with an integrated sensing device. The input device comprises a plurality of sensor electrodes, and a processing system coupled with the plurality of sensor electrodes. The processing system is configured to determine one or more low-noise periods associated with display update timing of the display device, and process, during the determined one or more low-noise periods, resulting signals received from the plurality of sensor electrodes.

Abstract: A capacitance measurement circuit cancels background capacitance while reducing charge leakage and supply ripples during reset phases and integrate phases. The capacitance measurement circuit operates a first switch into a linear mode causing a first resistance in the first switch, and after a delay, operates a second switch into a saturation mode causing a second resistance in parallel to the first resistance.

Abstract: Techniques for detecting noise with a capacitive sensing device. The includes driving a set of one or more sensor electrodes of a plurality of sensor electrodes with a sensing signal at a first frequency, receiving resulting signals based on the sensing signal for each of the one or more sensor electrodes driven, probing the set of one or more sensor electrodes to obtain a set of probing signals, and summing the probing signals of the set of probing signals to generate a noise-analysis signal.

Abstract: A capacitance measurement circuit cancels background capacitance while reducing charge leakage and supply ripples during reset phases and integrate phases. The capacitance measurement circuit operates a first switch into a linear mode causing a first resistance in the first switch, and after a delay, operates a second switch into a saturation mode causing a second resistance in parallel to the first resistance.

Abstract: Techniques for detecting noise with a capacitive sensing device. The includes driving a set of one or more sensor electrodes of a plurality of sensor electrodes with a sensing signal at a first frequency, receiving resulting signals based on the sensing signal for each of the one or more sensor electrodes driven, probing the set of one or more sensor electrodes to obtain a set of probing signals, and summing the probing signals of the set of probing signals to generate a noise-analysis signal.

Abstract: Embodiments of the present invention generally provide a processing system for an input device including a sensor module having sensor circuitry. The sensor module may be coupled to transmitter electrodes, receiver electrodes, and a shield electrode. The sensor module may be configured for transmitting transmitter signals with the transmitter electrodes, receiving resulting signals with the receiver electrodes, and transitioning the shield electrode from a first voltage to a second voltage during a non-sensing time period. The resulting signals may include effects which correspond to the transmitter signals. The input device may further include a determination module configured for determining positional information for an input object based at least in part on the resulting signals.

Abstract: Embodiments of the present invention generally provide a processing system for an input device including a sensor module having sensor circuitry. The sensor module may be coupled to transmitter electrodes, receiver electrodes, and a shield electrode. The sensor module may be configured for transmitting transmitter signals with the transmitter electrodes, receiving resulting signals with the receiver electrodes, and transitioning the shield electrode from a first voltage to a second voltage during a non-sensing time period. The resulting signals may include effects which correspond to the transmitter signals. The input device may further include a determination module configured for determining positional information for an input object based at least in part on the resulting signals.