Patent ID: 9367120
Filing Date: 2016-06-14
CPC Classification: G06F

Claim Text:
1. A method comprising: scanning a touch-sensitive display in a plurality of first frames to detect touches on the touch-sensitive display in a full-power operating condition by, during each of the plurality of first frames, driving a respective one of the drive electrodes by applying a first plurality of pulses to the respective one of the drive electrodes while sensing utilizing the sense electrodes; receiving an indication to scan in a reduced power condition; and when in the reduced power condition, scanning the touch-sensitive display in a plurality of second frames to detect touches on the touch-sensitive display by, during each of the plurality of second frames, driving the respective one of the drive electrodes by applying a second plurality of pulses to the respective one of the drive electrodes while sensing utilizing the sense electrodes; wherein the second plurality of pulses comprises fewer pulses than the first plurality of pulses such that fewer pulses are applied to each drive electrode when in the reduced power condition than when in the full-power operating condition, wherein the time during which the pulses are applied in one frame when in the reduced power condition is less than the time during which the pulses are applied in one frame when in the full-power operating condition and the pulses applied in one frame when in the reduced power condition are spread apart such that a time between pulses applied in one frame when in the reduced power condition is increased compared to the time between pulses applied in one frame when in the full-power operating condition, and wherein a sleep time between scans of the touch-sensitive display is greater when in the reduced power condition compared to the time between scans of the touch-sensitive display when in the full-power operating condition.