公开(公告)号：US10572018B2

公开(公告)日：2020-02-25

申请号：US16128524

申请日：2018-09-12

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Chia-Hung Liu ,  Yung-Chih Wang ,  Yu-Chun Hsieh

IPC: H01H13/7057 ,  G06F3/01 ,  G06F3/023 ,  H01H13/85 ,  G06F3/02

Abstract: A keyswitch with adjustable tactile feedback is adjusted by an adjusting method. The keyswitch includes a baseplate, an upper housing, an upper bushing component, a lower bushing component, a keycap and a recovering component. The baseplate has an electrode module, the upper housing is disposed on the baseplate, the upper bushing component is movably disposed on the upper housing, the lower bushing component is movably located between the baseplate and the upper housing, and the keycap is connected to a connecting portion of the upper bushing component. The lower bushing component can rotate relative to the baseplate to switch between a first position and a second position. The lower bushing component has a first lateral surface and a second lateral surface with different shapes. The recovering component is disposed between the baseplate and the lower bushing component to upwardly push the lower bushing component.

公开(公告)号：US20190214987A1

公开(公告)日：2019-07-11

申请号：US16240021

申请日：2019-01-04

Applicant: Darfon Electronics Corp.

Inventor： Yung-Chih WANG ,  Yu-Chun Hsieh ,  Chen Yang ,  Chia-Hung LIU

IPC: H03K17/968 ,  G01J1/02

CPC classification number: H03K17/968 ,  G01J1/0238

Abstract: An optical keyswitch includes a casing having a movable portion, a shaft movably disposed on the casing, a resilient member accommodated in the casing, and a switch module including a circuit board, an emitter, and a receiver. The emitter emits an optical signal along an optical path to the receiver. When the shaft is at a non-pressed position, the movable portion has a first spatial relation with the optical path, and the receiver receives the optical signal of a first intensity. When the shaft moves, in response to a pressing force, to a pressed position, the shaft compresses the resilient member and pushes the movable portion to move, so the movable portion no longer has the first spatial relation with the optical path, the optical signal received by the receiver has a second intensity different from the first intensity, and the switch module is triggered to generate a triggering signal.

公开(公告)号：US20190163273A1

公开(公告)日：2019-05-30

申请号：US16129813

申请日：2018-09-13

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Chia-Hung Liu ,  Yung-Chih Wang ,  Yu-Chun Hsieh

IPC: G06F3/01 ,  G06F3/023 ,  H01H13/85

Abstract: A keyswitch with adjustable tactile feedback is adjusted by an adjusting method. The keyswitch includes a baseplate, an upper housing, an upper bushing component, a lower bushing component, a keycap and a recovering component. The baseplate has an electrode module, the upper housing is disposed on the baseplate, the upper bushing component is movably disposed on the upper housing, the lower bushing component is movably located between the baseplate and the upper housing, and the keycap is connected to a connecting portion of the upper bushing component. The lower bushing component can rotate relative to the baseplate to switch between a first position and a second position. The lower bushing component has a first lateral surface and a second lateral surface with different shapes. The recovering component is disposed between the baseplate and the lower bushing component to upwardly push the lower bushing component.

公开(公告)号：US12160235B2

公开(公告)日：2024-12-03

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 ,  H01H13/14 ,  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.

公开(公告)号：US12009161B2

公开(公告)日：2024-06-11

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

CPC classification number: 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.

公开(公告)号：US20230308799A1

公开(公告)日：2023-09-28

申请号：US18096020

申请日：2023-01-12

Applicant: DARFON ELECTRONICS CORP.

Inventor： Chen Yang ,  Shao-Lun Hsiao ,  Hsiao-Han Chu

IPC: H04R1/10

CPC classification number: H04R1/105 ,  H04R1/1008

Abstract: A retractable headphone connection structure includes two connection supports which are slidably connected with each other in a sliding connection direction. One of the connection supports has a plurality of first magnetically attractive portions arranged at intervals along the sliding connection direction. The other of the connection supports has a second magnetically attractive portion. Therein, the two supports relatively slide to make the second magnetically attractive portion slide over the plurality of first magnetically attractive portions to generate a magnetic attraction force between the second magnetically attractive portion and one of the first magnetically attractive portions that is opposite to the second magnetically attractive portion. The magnetic attraction force positions the first connection support and the second connection support. A head-mounted audio device includes a headphone and the above retractable headphone connection structure. The headphone is disposed on one of the connection supports.

公开(公告)号：US10930451B2

公开(公告)日：2021-02-23

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

IPC: H01H13/85 ,  H01H13/52 ,  H01H13/04 ,  H01H13/02 ,  H01H13/14

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.

公开(公告)号：US20200244261A1

公开(公告)日：2020-07-30

申请号：US16746997

申请日：2020-01-20

Applicant: DARFON ELECTRONICS CORP.

Inventor： Yu-Chun Hsieh ,  Chen Yang ,  Chia-Hung Liu

IPC: H03K17/968

Abstract: A keyswitch includes a circuit board, a bottom board abutting against the circuit board, a cap, a light receiver and a light emitter disposed on the circuit board and opposite to each other, a base disposed on the circuit board, a cover disposed on the base, a first elastic member disposed through the cover and the base, a support device, and a second elastic member fixed to the base and having a flexible rod. The support device is movably connected to the cap and bottom board and has a sheet structure. When the cap is pressed, the sheet structure blocks light transmission between the light emitter and the light receiver to generate a triggering signal. When the cap is pressed to make the flexible rod deform downward with the sheet structure and then cross the sheet structure, the flexible rod is released to collide with the cover to make sound.

公开(公告)号：US10431402B2

公开(公告)日：2019-10-01

申请号：US16108070

申请日：2018-08-21

Applicant: DARFON ELECTRONICS CORP.

Inventor： Yu-Chun Hsieh ,  Chia-Hung Liu ,  Yung-Chih Wang ,  Chen Yang

IPC: H01H13/10 ,  H01H13/04 ,  H01H3/12 ,  H01H13/85 ,  H01H13/705

Abstract: A button switch connected to a cap and includes a base having a pillar, a flexible acoustic member having fixing and flexible rods, a sleeve, an upward-force-applying member abutting against the sleeve and the base, a resilient arm, and a cover disposed on the base. The sleeve rotatably jackets the pillar, passes through the cover to be connected to the cap, and has first and second convex portions, first and second concave portions, and a protruding edge located between the second convex portion and the second concave portion. The resilient arm selectively abuts against a first or second position on the first convex portion. When the resilient arm abuts against the first position and the protruding edge is located above the flexible rod, the flexible rod crosses the protruding edge and then collides with the cover to make a sound when the sleeve receives an external force to move downward.

公开(公告)号：US20190238131A1

公开(公告)日：2019-08-01

申请号：US16240096

申请日：2019-01-04

Applicant: Darfon Electronics Corp.

Inventor： Chen Yang ,  Yu-Chun Hsieh ,  Yung-Chih Wang ,  JIA-HUNG LIU ,  Ching-Yu Wang ,  LI-TE CHANG

IPC: H03K17/969

CPC classification number: H03K17/968 ,  H03K17/969 ,  H03K2217/9651 ,  H03K2217/9653

Abstract: An optical keyswitch includes a keycap, a supporting mechanism having a protrusion disposed under the keycap to support the keycap to move downward or upward, and a switch module including a circuit board, an emitter, and a receiver. The emitter and the receiver are electrically connected to the circuit board. The emitter emits an optical signal to the receiver. When the keycap is not pressed, the receiver receives the optical signal of a first intensity. When the keycap is pressed, the protrusion moves along with the keycap, and the protrusion changes the optical signal received by the receiver to have a second intensity different from the first intensity, so the switch module is triggered to generate a triggering signal.