公开(公告)号：US10261687B2

公开(公告)日：2019-04-16

申请号：US15651030

申请日：2017-07-17

Applicant: PIXART IMAGING INC.

Inventor： Yu-Han Chen ,  Chien-An Chen ,  Chi-Chieh Liao

IPC: G06F3/048 ,  G06F3/044 ,  G06F3/0488 ,  G06F3/02 ,  G06F3/038 ,  H03K17/96 ,  G06F1/22 ,  G06F3/041

Abstract: Provided herein are a pin sharing circuit, a pin sharing method and an electronic device, an electronic wire using the same. The pin sharing circuit enables at least one pin on an integrated circuit to be shared by a keyboard device and a touch panel and prevents signal interference between the keyboard device and the touch panel using an impedance element disposed on a wire for the pin, such that the pin can output or receive a stimulation signal and a sensor signal that contain both an AC component and a DC component so as to enhance the efficiency of the overall system and prevent the stimulation signal and the sensor signal from conflicts between the keyboard device and the touch panel.