公开(公告)号：US20110273399A1

公开(公告)日：2011-11-10

申请号：US13085624

申请日：2011-04-13

Applicant: Chang-ju LEE

Inventor： Chang-ju LEE

IPC: G06F3/045

CPC classification number: G06F3/0418

Abstract: A method of calibrating a touch sensing system includes connecting an impedance load to a touch sensing signal path in a gain adjustment mode, adjusting a gain of an amplifier that amplifies a signal input to the touch sensing signal path in the gain adjustment mode by evaluating an output signal of the amplifier, and disconnecting the impedance load from the touch sensing signal path after adjusting the amplifier gain.

Abstract translation: 一种校准触摸感测系统的方法包括在增益调整模式中将阻抗负载连接到触摸感测信号路径，通过评估放大器的增益来调节在增益调整模式中放大输入到触摸感测信号路径的信号的放大器的增益 放大器的输出信号，并且在调整放大器增益之后，从触摸感测信号路径断开阻抗负载。