公开(公告)号：US20220015709A1

公开(公告)日：2022-01-20

申请号：US17002858

申请日：2020-08-26

Applicant: Primax Electronics Ltd.

Inventor： Ling-Bo Li ,  Xiao-Ping Wang ,  Liu-Bing Cai

IPC: A61B5/00 ,  A61B5/0205 ,  G16H40/67 ,  G16H50/30 ,  G06F3/02

Abstract: A keyboard device having functionality of physiological parameter measurement is disclosed, which comprises a keyboard main body and at least two physiological signal sensing units. The physiological signal sensing unit comprises a lighting element and a light sensing element. Moreover, the physiological signal sensing unit further comprises a touch plane that is exposed out of the surface of the keyboard main body. When a user is typing the button keys of the keyboard main body, the user can touch the touch plane by one finger thereof, such that the physiological parameter calculating unit receives an optical signal through the physiological signal sensing unit, thereby calculating physiological parameters of the user after applying a physiological parameter calculating process to the optical signal. The calculated physiological parameter comprises heartbeat and heart rate.

公开(公告)号：US11482387B2

公开(公告)日：2022-10-25

申请号：US17031662

申请日：2020-09-24

Applicant: Primax Electronics Ltd.

Inventor： Liu-Bing Cai ,  Li-Xiong Deng ,  Fu-Zhou Wei ,  Li-Qiang Chen ,  Xiao-Ping Wang

IPC: H01H13/06 ,  H01H13/703 ,  H01H13/705

Abstract: A membrane circuit board includes a first film substrate, a second film substrate, an insulating spacer substrate and a waterproof structure. The first circuit layer is installed on the first film substrate. A second circuit layer is installed on the second film substrate. The insulating spacer substrate arranged between the first film substrate and the second film substrate. The first circuit layer is arranged between the first film substrate and the insulating spacer substrate. The second circuit layer is arranged between the second film substrate and the insulating spacer substrate. The waterproof structure includes a first welding layer and a second welding layer. The first welding layer is arranged between the first film substrate and the insulating spacer substrate. The second welding layer is arranged between the second film substrate and the insulating spacer substrate.

公开(公告)号：US20220165520A1

公开(公告)日：2022-05-26

申请号：US17136988

申请日：2020-12-29

Applicant: Primax Electronics Ltd.

Inventor： Liu-Bing Cai ,  Rui-Qing Xiao ,  Xiao-Ping Wang ,  Jin-Chun Zhang

IPC: H01H13/81 ,  G06F3/02 ,  H05K1/18

Abstract: A keyboard device includes a bottom cover, a supporting plate, a flexible circuit board and plural key structures. The supporting plate is installed on the bottom cover. The supporting plate has a curved arc-shaped profile that is bent upwardly in a direction away from the bottom cover. The supporting plate includes plural perforations. The flexible circuit board is arranged between the bottom cover and the supporting plate. The plural key structures are installed on the supporting plate. The plural key structures are penetrated through the corresponding perforations and contacted with the flexible circuit board.

公开(公告)号：US20220068575A1

公开(公告)日：2022-03-03

申请号：US17031662

申请日：2020-09-24

Applicant: Primax Electronics Ltd.

Inventor： Liu-Bing Cai ,  Li-Xiong Deng ,  Fu-Zhou Wei ,  Li-Qiang Chen ,  Xiao-Ping Wang

IPC: H01H13/06 ,  H01H13/705 ,  H01H13/703

Abstract: A membrane circuit board includes a first film substrate, a second film substrate, an insulating spacer substrate and a waterproof structure. The first circuit layer is installed on the first film substrate. A second circuit layer is installed on the second film substrate. The insulating spacer substrate arranged between the first film substrate and the second film substrate. The first circuit layer is arranged between the first film substrate and the insulating spacer substrate. The second circuit layer is arranged between the second film substrate and the insulating spacer substrate. The waterproof structure includes a first welding layer and a second welding layer. The first welding layer is arranged between the first film substrate and the insulating spacer substrate. The second welding layer is arranged between the second film substrate and the insulating spacer substrate.

公开(公告)号：US11557445B2

公开(公告)日：2023-01-17

申请号：US17136988

申请日：2020-12-29

Applicant: Primax Electronics Ltd.

Inventor： Liu-Bing Cai ,  Rui-Qing Xiao ,  Xiao-Ping Wang ,  Jin-Chun Zhang

IPC: G06F3/02 ,  H01H13/81 ,  H05K1/18

Abstract: A keyboard device includes a bottom cover, a supporting plate, a flexible circuit board and plural key structures. The supporting plate is installed on the bottom cover. The supporting plate has a curved arc-shaped profile that is bent upwardly in a direction away from the bottom cover. The supporting plate includes plural perforations. The flexible circuit board is arranged between the bottom cover and the supporting plate. The plural key structures are installed on the supporting plate. The plural key structures are penetrated through the corresponding perforations and contacted with the flexible circuit board.