公开(公告)号：US12032503B2

公开(公告)日：2024-07-09

申请号：US17359355

申请日：2021-06-25

申请人： GETAC HOLDINGS CORPORATION

发明人： Chin-Jung Chang

IPC分类号： G06F13/40 ,  G06F1/18

CPC分类号： G06F13/4068 ,  G06F1/189

摘要： A signal switching method applicable to a first electronic device includes: receiving a voltage of a second electronic device through a power supply contact pin of the first electronic device; comparing the voltage with a threshold; when the voltage is greater than the threshold, connecting a first bus of the first electronic device to at least one signal contact pin, and disconnecting a second bus of the first electronic device from the at least one signal contact pin; and when the voltage is not greater than the threshold, connecting the second bus to the at least one signal pin, and disconnecting the first bus from the at least one signal contact pin.

公开(公告)号：US11983044B2

公开(公告)日：2024-05-14

申请号：US17943085

申请日：2022-09-12

申请人： GETAC HOLDINGS CORPORATION

发明人： Kuang-Yeh Chang

IPC分类号： G06F1/16

CPC分类号： G06F1/1656 ,  G06F1/1684

摘要： A mobile electronic device includes a main framework having a motherboard, a back cover covering the main framework and having an expansion window, and an expansion unit is disclosed. The expansion unit includes a door cover covering the expansion window. The door cover includes a back plate and a lateral plate, the lateral plate having an opening. A functional module is disposed on an inner side of the door cover, electrically connected to the motherboard, and has a first side on which an operation interface is disposed. The operation interface faces the opening in the lateral plate.