Patent ID: 8878823
Filing Date: 2014-11-04
Classification: G06F

Abstract:
1. An apparatus comprising: a stylus housing having an end; a conductive tip disposed at least partially inside the stylus housing and extending from the end; a force sensor coupled to the conductive tip and configured to detect contact between the conductive tip and the object; a tip shield coupled with the stylus housing and extending from the end, wherein the tip shield is configured to receive a transmit (TX) potential; a switch coupled to the tip shield and the conductive tip wherein the switch is configured to electrically couple the tip shield to the conductive tip in a first mode and to electrically isolate the tip shield from the conductive tip in a second mode, wherein the first mode and the second mode are not performed concurrently; and a processor configured to instruct the switch to electrically couple the tip shield to the conductive tip in the first mode if the force sensor detects that the conductive tip is not in contact with the object, and configured to instruct the switch to electrically isolate the tip shield from the conductive tip in the second mode if the force sensor detects that the conductive tip is in contact with the object.