| 摘要 |
An apparatus includes a capacitive array formed from a plurality of electrodes including a first plurality of electrodes and a second plurality of electrodes. At least some of the first plurality of electrodes has a serpentine shape and extends in a first direction. The second plurality of electrodes extends in a second direction that is substantially perpendicular to the first direction. The apparatus further includes a capacitive sensor circuit coupled to the capacitive array and configured to detect an object relative to the capacitive array based on a change in a capacitance determined from at least one of the first plurality of electrodes.
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