| 主权项 |
1. A semiconductor device comprising:
a touch panel controller operable to periodically capture signals using receiver electrodes disposed in a touch panel to generate detection data indicating a touch or no touch, wherein the receiver electrodes are part of touch panel electrodes that extend in X and Y directions, wherein the touch panel electrodes are arrayed at predetermined intervals in the X and Y directions, wherein the touch panel controller comprises detection circuits, wherein the receiver electrodes are divided into groups of at least two of the receiver electrodes, and wherein each of the detection circuits corresponds to a respective one of the groups, and wherein the touch panel controller is operable to perform a touch detection scan and a noise detection scan, wherein, during the touch detection scan, each detection circuit accepts input of signals from the receiver electrodes sequentially selected in a time-division manner to produce detection data for the corresponding group, and wherein, during the noise detection scan, each detection circuit accepts input of signals from the receiver electrodes simultaneously in the corresponding group to produce detection data. |
