BACKGROUND

Field

The disclosure herein is generally related to electronic devices, and more specifically, to operating sensing devices.

Description of the Related Art

Input devices including proximity sensor devices may be used in a variety of electronic systems. A proximity sensor device may include a sensing region, demarked by a surface, in which the proximity sensor device determines the presence, location, force and/or motion of one or more input objects. Proximity sensor devices may be used to provide interfaces for the electronic system. For example, proximity sensor devices may be used as input devices for larger computing systems, such as touchpads integrated in, or peripheral to, notebook or desktop computers. Proximity sensor devices may also often be used in other computing systems, such as touch screens integrated in cellular phones and multimedia entertainment systems of automobiles and the like.

SUMMARY

In one example, a processing system comprises a sensor device. The sensor device is configured to receive a first display control signal corresponding to a non-display update period of a display frame and a second display control signal corresponding to a display update period of the display frame. The sensor device is further configured to acquire, based on receipt of the first display control signal, first resulting signals from sensor electrodes electrically connected to the sensor driver by operating the sensor electrodes for a first type of input sensing during a first period. The first period overlaps with at least a portion of the non-display update period. Further, the sensor driver is configured to acquire, based on receipt of the second display control signal, second resulting signals with the sensor electrodes by operating the sensor electrodes for a second type of input sensing during a second period. The second period overlaps with at least a portion of the display update period. The second type of input sensing differs from the first type of input sensing.

In one example, a method for input sensing comprises receiving, at a sensor driver, a first display control signal corresponding to a non-display update period of a display frame and a second display control signal corresponding to a display update period of the display frame. The method further comprises acquiring, based on receipt of the first display control signal, first resulting signals with sensor electrodes by operating the sensor electrodes for a first type of input sensing during a first period. The first period overlaps with at least a portion of the non-display update period. Further, the method comprises acquiring, based on receipt of the second display control signal, second resulting signals with the sensor electrodes by operating the sensor electrodes for a second type of input sensing during a second period. The second period overlaps with at least a portion of the display update period. The second type of input sensing differs from the first type of input sensing.

In one example, an input device comprises sensor electrodes, and a processing system electrically connected to the sensor electrodes. The processing system is configured to receive a first display control signal corresponding to a non-display update period of a display frame and a second display control signal corresponding to a display update period of the display frame. The processing system is further configured to acquire, based on receipt of the first display control signal, first resulting signals with the sensor electrodes by operating the sensor electrodes for a first type of input sensing during a first period. The first period overlaps with at least a portion of the non-display update period. Further, the processing system is configured to acquire, based on receipt of the second display control signal, second resulting signals with the sensor electrodes by operating the sensor electrodes for a second type of input sensing during a second period. The second period overlaps with at least a portion of the display update period. The second type of input sensing differs from the first type of input sensing.

