公开(公告)号：US12272504B2

公开(公告)日：2025-04-08

申请号：US17821814

申请日：2022-08-24

Applicant: Darfon Electronics Corp.

Inventor： Chih-Yao Chi ,  Ling-Hsi Chao ,  Da-Shan Hsu ,  Shao-Lun Hsiao ,  Yu-Chun Hsieh

IPC: H01H13/14 ,  H01H13/20 ,  G06F3/02 ,  G06F3/0354

Abstract: A keyswitch assembly includes a base, a pressable plate, a first magnetic acting member and a second magnetic acting member. An accommodating space is defined within the base, and an upper surface of the base is provided with a connecting portion. The pressable plate includes a pressing portion, an acting portion and a pivotal connection portion located between the pressing portion and the acting portion and pivotally connected to the connecting portion. The first magnetic acting member is disposed on the acting portion; the second magnetic acting member is disposed on the base corresponding to the first magnetic acting member. The keyswitch assembly is configured such that the first magnetic acting member and the second magnetic acting are attracted or repulsed each other by a magnetic force, so as to provide or change a pressing resistance of the pressing portion.

公开(公告)号：US20210041961A1

公开(公告)日：2021-02-11

申请号：US16795602

申请日：2020-02-20

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen-Yun Su ,  Da-Shan Hsu ,  Shao-Lun Hsiao ,  Ling-Hsi Chao

IPC: G06F3/0362 ,  G06F3/0354

Abstract: A wheel device applied to a mouse includes a base, a wheel module, a sheltering component and an optical detecting module. The base has a holder. The wheel module is disposed on the base and includes a roller and a wheel. The roller includes a rolling surface, an axle and a plurality of rib structures. The axle is rotatably disposed on the holder in an axle direction. The rib structures are disposed inside the rolling surface. The wheel is disposed on the rolling surface of the roller. The sheltering component includes light sheltering areas and light penetrating areas disposed on the roller or the wheel and around the axle direction. Each light sheltering area is perpendicular to the axle. The optical detecting module has an optical emitter and an optical receiver. The optical receiver is adapted to receive an optical signal emitted by the optical emitter.

公开(公告)号：US11817278B2

公开(公告)日：2023-11-14

申请号：US17731288

申请日：2022-04-28

Applicant: Darfon Electronics Corp.

Inventor： Da-Shan Hsu ,  Shao-Lun Hsiao ,  Chen Yang ,  Yu-Chun Hsieh

IPC: H01H3/12 ,  H03K17/97

CPC classification number: H01H3/125 ,  H03K17/97 ,  H01H2207/00 ,  H01H2221/04

Abstract: A magnetic type keyswitch includes an actuating member and a switch unit. The actuating member is movable in response to a pressing force. The switch unit includes a circuit board, a Hall sensor electrically connected to the circuit board, and a magnet spaced apart from the Hall sensor by a fixed distance. When the pressing force is not applied, the magnet enables the Hall sensor to output a first voltage, and when the pressing force is applied, the actuating member moves relative to the magnet and the Hall sensor in response to the pressing force, so that the Hall sensor outputs a second voltage different from the first voltage, and the magnetic type keyswitch generates a triggering signal.

公开(公告)号：US11099666B2

公开(公告)日：2021-08-24

申请号：US16795602

申请日：2020-02-20

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen-Yun Su ,  Da-Shan Hsu ,  Shao-Lun Hsiao ,  Ling-Hsi Chao

IPC: G06F3/0362 ,  G06F3/0354 ,  G06F3/03

Abstract: A wheel device applied to a mouse includes a base, a wheel module, a sheltering component and an optical detecting module. The base has a holder. The wheel module is disposed on the base and includes a roller and a wheel. The roller includes a rolling surface, an axle and a plurality of rib structures. The axle is rotatably disposed on the holder in an axle direction. The rib structures are disposed inside the rolling surface. The wheel is disposed on the rolling surface of the roller. The sheltering component includes light sheltering areas and light penetrating areas disposed on the roller or the wheel and around the axle direction. Each light sheltering area is perpendicular to the axle. The optical detecting module has an optical emitter and an optical receiver. The optical receiver is adapted to receive an optical signal emitted by the optical emitter.