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This paper presents an analog front-end (AFE) IC for mutual capacitance touch sensing with 224 sensor channels in 0.18 μm CMOS with 3.3 V drive voltage. A 32-in touch sensing system and a(More)
A touch sensing system capable of stylus input should have “palm rejection” function which allows the user to place one's palm on the surface of the touch sensor while writing with a(More)
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