Invention Grant
- Patent Title: Pin sharing circuit, pin sharing method, electronic device and electronic wire using the same
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Application No.: US15651030Application Date: 2017-07-17
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Publication No.: US10261687B2Publication Date: 2019-04-16
- Inventor: Yu-Han Chen , Chien-An Chen , Chi-Chieh Liao
- Applicant: PIXART IMAGING INC.
- Applicant Address: TW Hsin-Chu
- Assignee: PIXART IMAGING INC.
- Current Assignee: PIXART IMAGING INC.
- Current Assignee Address: TW Hsin-Chu
- Agency: Li & Cai Intellectual Property (USA) Office
- Priority: TW105129312A 20160909
- Main IPC: G06F3/048
- 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.
Public/Granted literature
- US20180074695A1 PIN SHARING CIRCUIT, PIN SHARING METHOD, ELECTRONIC DEVICE AND ELECTRONIC WIRE USING THE SAME Public/Granted day:2018-03-15
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