Patent ID: 9746507
Date: 2017-08-29
CPC Classifications: G01R,G06F

Claim:
1. An apparatus comprising: a first circuit to obtain a first capacitance measurement of a first sense element and a second capacitance measurement of a second sense element when a conductive object is proximate to a touch surface with the first sense element and the second sense element; and a second circuit coupled to the first circuit, wherein the second circuit is to detect whether the conductive object activates the first sense element, the second sense element, or both, in view of the first capacitance measurement and the second capacitance measurement, wherein the second circuit is to distinguish between a stylus and a finger as the conductive object in view of activation of the first sense element, the second sense element, or both, detected from the first capacitance measurement and the second capacitance measurement, wherein the conductive object is the stylus when the second sense element is activated and the first sense element is not activated and the conductive object is the finger when the first sense element and the second sense element are activated, wherein the second circuit is to adjust a sensing parameter of the first circuit from a first value to a second value when the conductive object is distinguished to be the stylus, and wherein the first circuit is to obtain a third capacitance measurement of the second sense element with the sensing parameter set to the second value.