公开(公告)号：US20220004269A1

公开(公告)日：2022-01-06

申请号：US17354688

申请日：2021-06-22

Applicant: ASUSTEK COMPUTER INC.

Inventor： Kuo-En LIN ,  Shau-Yang HSIEH ,  Ming-Hsing CHUANG ,  Sheng-Yu WANG ,  Chih-Yuan LIN ,  Shih-Hung CHOU ,  Xin-Han CAI ,  I-Ting HSIEH

IPC: G06F3/0354 ,  G06F3/038 ,  H01H1/14

Abstract: A control circuit for an input device including a micro-switch is provided. The control circuit includes an input circuit, a receiver circuit, a control unit, and a detecting unit. The input circuit includes a first contact and a second contact for electrically connecting to the micro-switch. The receiver circuit includes a third contact and a fourth contact for electrically connecting to the micro-switch. The control unit is electrically connected to the first contact and the third contact for providing an input signal via the first contact to the micro-switch and receiving a switching signal from the micro-switch via the third contact. The detecting unit detects a voltage of the second contact to generate a detecting signal. The control unit receives the detecting signal to determine a type of the micro-switch.