| 摘要 |
An apparatus is provided. The apparatus comprises a touch screen interface and a signal processing circuit. Within the touch screen interface, there are switching circuits, where each switching circuit is configured to be coupled to a column electrode, and there are touch detection circuits, where each touch detection circuit is configured to be coupled to a row electrode. The signal processing circuit is then coupled to each switching circuit and each touch detection circuit so as to be able to selectively activate the plurality of switching circuits and the plurality of touch detection circuits to identify a zone for a touch event. Also, the signal processing circuit is configured to determine first, second, third, and fourth resistances for the zone for the touch event and is configured to determine a set of coordinates and pressure for the touch event from its first, second, third, and fourth resistances.
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