DETECTION OF A CONDUCTIVE OBJECT DURING AN INITIALIZATION PROCESS OF A TOUCH-SENSING DEVICE

摘要

A method and apparatus determine a first capacitance value that represents a first capacitance of a first sense element and determine a second capacitance value that represents a second capacitance of a second sense element, where the second capacitance value is responsive to a conductive object proximate to the second sense element. The method and apparatus determine a difference value that represents a difference between the first capacitance value and the second capacitance value and detect a presence of the conductive object responsive to the difference meeting or exceeding a threshold difference value.

主权项

1. A method comprising:
determining a first capacitance value that represents a first capacitance of a first sense element; determining a second capacitance value that represents a second capacitance of a second sense element, wherein the second capacitance value is responsive to a conductive object proximate to the second sense element; determining a difference value that represents a difference between the first capacitance value and the second capacitance value; and detecting a presence of the conductive object responsive to the difference meeting or exceeding a threshold difference value.