公开(公告)号：US20230052943A1

公开(公告)日：2023-02-16

申请号：US17819649

申请日：2022-08-15

Applicant: Darfon Electronics Corp.

Inventor： Yu-Chun HSIEH ,  Chen YANG ,  Shao-Lun HSIAO ,  Po-Yueh CHOU

IPC: G06F3/01 ,  H01H13/85 ,  G06F3/0354 ,  G06F3/02

Abstract: A mute-able input device with keystroke tactile feedback includes: a plurality of keys, each including a tactile structure and a sound-generating structure for respectively generating operational tactile feedback and operating sounds; a plurality of adjusting mechanisms, each including an adjusting portion corresponding to one of the keys; at least one switching unit including an operating portion and a switch member, the operating portion connecting the switch member and the adjusting mechanism, the switch member generating a switching signal involving a mode switching between different tactile modes or different sound modes for one or more keys. When the operating portion moves in response to a force, the switch member is triggered to achieve the mode switching; meanwhile, the adjusting portion moves to interfere with at least one of the tactile structure or the sound-generating structure along with the movement of the operating portion.

公开(公告)号：US20230129863A1

公开(公告)日：2023-04-27

申请号：US17894254

申请日：2022-08-24

Applicant: Darfon Electronics Corp.

Inventor： Yu Chun HSIEH ,  Chen YANG ,  Chia Hung LIU ,  Shao Lun HSIAO

IPC: H01H13/14 ,  G06F3/02 ,  G06F1/3296 ,  H01H13/70

Abstract: A sensing keyswitch including a key body, a key-sensing switch and an enabling switch is provided. The key body includes a key top, and a key driver and an enabler which can move with the key top in the same keystroke cycle. The key-sensing switch electrically connected to a key circuit is in a disabled mode to save power and cannot sense the change of the sensing intensity caused by the movement of the driver. The enabling switch is electrically connected to an enabling circuit, wherein when the enabling switch is triggered by the enabler, the enabling switch outputs an enabling signal through the enabling circuit for enabling the key-sensing switch to enter an enabled mode, so that the key-sensing switch can sense the change of the sensing intensity caused by the movement of the key driver to trigger a key signal.

公开(公告)号：US20230097110A1

公开(公告)日：2023-03-30

申请号：US18060070

申请日：2022-11-30

Applicant: Darfon Electronics Corp.

Inventor： Chen YANG ,  Chia-Hung LIU ,  Yu-Chun HSIEH

IPC: H01H13/20 ,  H01H13/04 ,  H01H13/70 ,  H01H13/14

Abstract: A keyswitch structure includes a base, a cap disposed corresponding to the base, a restoring member disposed between the base and the cap, and a tactile adjustment unit. The cap has a cam portion movable relative to the base. The restoring member is configured to provide a restoring force to enable the cam portion to move away from the base. The tactile adjustment unit is disposed corresponding to the cam portion and includes a holder and a tactile feedback member mounted on the holder. The holder is movable relative to the base to change a position of the tactile feedback member relative to the cam portion, so as to change a pressing force required for the cam portion to move toward the base.

公开(公告)号：US20220406539A1

公开(公告)日：2022-12-22

申请号：US17841795

申请日：2022-06-16

Applicant: Darfon Electronics Corp.

Inventor： Yu-Chun HSIEH ,  Ling-Hsi CHAO ,  Shao-Lun HSIAO ,  Chen YANG

IPC: H01H13/20 ,  H01H13/14 ,  H01H13/70 ,  H01H13/10

Abstract: A key structure includes a base, a movable mechanism movably positioned on the base, a sound generating member positioned on the base, and an adjusting unit movable relative to the base to be at a first position or a second position. The sound generating member has a hitting portion, which extends corresponding to an impact surface. When the adjusting unit is at the first position, and a pressing force is applied to the movable mechanism, the movable mechanism moves relative to the base and drives the sound generating member to move, so the hitting portion moves to hit the impact surface to generate a hitting sound. When the adjusting unit is at the second position, the adjusting unit restricts movement of the hitting portion, so the hitting portion cannot move to hit the impact surface.

公开(公告)号：US20220385288A1

公开(公告)日：2022-12-01

申请号：US17812785

申请日：2022-07-15

Applicant: Darfon Electronics Corp.

Inventor： Chen YANG ,  Yu-Chun HSIEH ,  Li-Te CHANG ,  Po-Yueh CHOU

IPC: H03K17/968 ,  H01H13/705 ,  H01H13/14

Abstract: An optical keyswitch includes a keycap, a support mechanism, and a switch module. The support mechanism is disposed below the keycap and configured to support the keycap moving upward and downward, the support mechanism comprising a first frame and a second frame, the first frame having a sliding end. The switch module includes a circuit board, an emitter, and a receiver, the emitter and the receiver are electrically connected to the circuit board, and the emitter emitting an optical signal to the receiver. When the keycap is pressed, the first frame is driven by the keycap to slide substantially parallel to the circuit board and block the optical signal with the sliding end, so the switch module is triggered to generate a triggering signal.

公开(公告)号：US20220351920A1

公开(公告)日：2022-11-03

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

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：US20220083151A1

公开(公告)日：2022-03-17

申请号：US17522744

申请日：2021-11-09

Applicant: Darfon Electronics Corp.

Inventor： Chen YANG ,  CHIH-YAO CHI ,  Shao Lun HSIAO ,  Chih-Hao CHEN

IPC: G06F3/02 ,  H01H13/7065 ,  G06F3/01

Abstract: A keyboard includes a cover plate having a plurality of first keyholes, an adjustment mechanism disposed under the cover plate, and a plurality of keyswitches. The adjustment mechanism includes an adjustment frame and a plurality of adjustment portions. The adjustment frame includes a plurality of ribs defining a plurality of second keyholes corresponding to the plurality of first keyholes, respectively. Each of the adjustment portions is proximate to a corresponding one of the second keyholes. Each of the keyswitches includes a tactile feedback member and is located in corresponding first and second keyholes, so that the adjustment portion corresponds to the tactile feedback member of its corresponding keyswitch. The adjustment frame is movable relative to the cover plate, so that each of the adjustment portions drives a portion of the tactile feedback member to move, to change tactile feedback of the keyswitches.

公开(公告)号：US20210249203A1

公开(公告)日：2021-08-12

申请号：US17167202

申请日：2021-02-04

Applicant: Darfon Electronics Corp.

Inventor： Chen YANG ,  Chia-Hung LIU ,  Yu-Chun HSIEH

IPC: H01H13/20 ,  H01H13/04 ,  H01H13/14 ,  H01H13/70

Abstract: A keyswitch structure includes a base, a cap disposed corresponding to the base, a restoring member disposed between the base and the cap, and a tactile adjustment unit. The cap has a cam portion movable relative to the base. The restoring member is configured to provide a restoring force to enable the cam portion to move away from the base. The tactile adjustment unit is disposed corresponding to the cam portion and includes a holder and a tactile feedback member mounted on the holder. The holder is movable relative to the base to change a position of the tactile feedback member relative to the cam portion, so as to change a pressing force required for the cam portion to move toward the base.

公开(公告)号：US20240388290A1

公开(公告)日：2024-11-21

申请号：US18663389

申请日：2024-05-14

Applicant: Darfon Electronics Corp.

Inventor： Chen YANG ,  Shao-Lun HSIAO ,  Yu-Chun HSIEH

IPC: H03K17/94 ,  H01H13/04

Abstract: A keyswitch assembly includes a keycap, a lifting mechanism, a shield, and a substrate. The lifting mechanism includes a keycap end coupled to the keycap and is capable of being driven by a force to move downward by a distance. The shield extends from the keycap end or the keycap and is movable along with the keycap end or the keycap. The substrate is disposed below the lifting mechanism and includes a sensing switch and a keyswitch circuit electrically connected to each other. The sensing switch has a signal channel and is configured to sense a change in sensed intensity caused by interference of the shield with the signal channel to cause the keyswitch circuit to generate at least one keyswitch signal. During movement of the shield with the keycap end or the keycap, the shield interferes with the signal channel as much as possible throughout the entire distance.

公开(公告)号：US20220406540A1

公开(公告)日：2022-12-22

申请号：US17841801

申请日：2022-06-16

Applicant: Darfon Electronics Corp.

Inventor： Yu-Chun HSIEH ,  Ling-Hsi CHAO ,  Shao-Lun HSIAO ,  Chen YANG

IPC: H01H13/20 ,  H01H13/10 ,  H01H13/14

Abstract: A key structure includes a base and a linkage mechanism. The linkage mechanism includes a plurality of linking members movably connected to each other. The plurality of linking members includes at least two linking members rotatably positioned on the base, respectively. When a pressing force is applied to the linkage mechanism, the plurality of linking members move associated with each other to restrict a rotation range of the plurality of linking members with respect to the base.