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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
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.
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公开(公告)号：US20230187147A1
公开(公告)日：2023-06-15
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
CPC classification number: H01H13/14 , H01H13/20 , G06F3/03543 , H01H2215/00
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.
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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.
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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
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.
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公开(公告)号：US20210351773A1
公开(公告)日：2021-11-11
申请号：US17383678
申请日：2021-07-23
Applicant: Darfon Electronics Corp.
Inventor： Chen Yang , Yu-Chun HSIEH , Li-Te CHANG , Po-Yueh CHOU
IPC: H03K17/968 , H01H13/14 , H01H13/705
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.
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Patent Agency Ranking
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
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.
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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
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.
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公开(公告)号：US20210357037A1
公开(公告)日：2021-11-18
申请号：US17308245
申请日：2021-05-05
Applicant: Darfon Electronics Corp.
Inventor： Chih-Hsiang CHIANG , Chen YANG , Yu-Chun HSIEH , Po-Yueh CHOU
IPC: G06F3/02 , G06F3/01 , H01H13/7065
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.
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公开(公告)号：US20190393003A1
公开(公告)日：2019-12-26
申请号：US16448282
申请日：2019-06-21
Applicant: Darfon Electronics Corp.
Inventor： Yung-Chih WANG , Chia-Hung LIU , Yu-Chun HSIEH , Chen YANG
Abstract: A keyswitch structure includes a base having a positioning means, an cover combined with the base, a plunger with an cam portion movably coupling with the cover relative to the base, a restoring unit disposed between the base and the plunger to provide a restoring force to enable the plunger to move along a direction away from the base, a tactile feedback member having a positioning portion positioned by the positioning means and an extending arm extending across a moving path of the cam portion, and an adjusting unit being movable to drive the positioning portion to shift, so that the tactile feedback member has a first deformation or a second deformation, and a pressing force required for the cam portion to pass the extending arm when the plunger moves toward the base is changed.
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公开(公告)号：US20230353149A1
公开(公告)日：2023-11-02
申请号：US18350787
申请日：2023-07-12
Applicant: Darfon Electronics Corp.
Inventor： Chen Yang , Yu-Chun HSIEH , Li-Te CHANG , Po-Yueh CHOU
IPC: H03K17/968 , H01H13/705 , H01H13/14
CPC classification number: H03K17/968 , H01H13/705 , H01H13/14 , H03K2217/9653
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.
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