Patent ID: 9507441
Filing Date: 2016-11-29
CPC Classification: G06F

Claim Text:
1. An electronic stylus to be used with a capacitive touch screen, comprising: a tip portion having a tip and a supporting rod attached to the tip, the tip and the supporting rod being electrically conductive, wherein the tip portion further includes a first electrical shielding tube enclosing and shielding the supporting rod, and a second electrical shielding tube enclosing the first electrical shielding tube and the supporting rod; a circuit coupled to the supporting rod to integrate and amplify a current induced at the tip, the circuit comprising a non-inverting integrator circuit and coupling an integrated non-inverted signal from the tip to the second electrical shielding tube; and an electrically conductive housing to house the circuit therein, wherein the first electrical shielding tube and the second electrical shielding tube are to reduce skew effect between the supporting rod and a surface of a touch screen when the electronic stylus is held against the surface of the touch screen.