公开(公告)号：US20250123694A1

公开(公告)日：2025-04-17

申请号：US18689639

申请日：2023-09-08

Applicant: Honor Device Co., Ltd.

Inventor： Lei MA ,  Bo MA ,  Chengyu MA ,  Yingke FU ,  Chao WANG

IPC: G06F3/023 ,  G06F3/02 ,  H01H13/81

Abstract: This application provides a signal transmission method and a related device. According to the signal transmission method, when two contact points on an electronic device are respectively in contact with two contact points on a keyboard, the electronic device may transmit a power signal and a GND signal to the keyboard through the contact points that are in contact with each other, that is, the electronic device may supply power to the keyboard. In addition, when a user presses a key on the keyboard to perform input, the keyboard may transmit key position information to the electronic device through a contact point that is in contact with the electronic device. In this signal transmission method, no Bluetooth chip needs to be built into the electronic device and the keyboard, reducing device costs.