公开(公告)号：US11144134B1

公开(公告)日：2021-10-12

申请号：US17184213

申请日：2021-02-24

Applicant: Primax Electronics Ltd.

Inventor： Zi-Hao Liao

IPC: G06F3/0354

Abstract: A mouse device includes a casing, a main circuit board and two replaceable switch modules. Each replaceable switch module includes a switch circuit board and a micro switch on the switch circuit board. Moreover, plural electrical contacts are disposed on a bottom surface of the switch circuit board. The replaceable switch modules are connected with corresponding pogo pin connectors on the main circuit board through the electrical contacts. The micro switches are optical micro switches or mechanical micro switches.

公开(公告)号：US11099058B2

公开(公告)日：2021-08-24

申请号：US16394546

申请日：2019-04-25

Applicant: Primax Electronics Ltd.

Inventor： Pei-Ming Chang ,  Wen-Chih Shen

IPC: G01G23/01

Abstract: An electronic scale calibrating method for an electronic scale is provided. The electronic scale includes a weighing pan, a memory unit, a first weight sensor and a second weight sensor. The weighing pan has a placement region. The first weight sensor and the second weight sensor are symmetric with respect to the placement region. Firstly, two standard samples are placed in the placement region simultaneously. Then, the first weight sensor and the second weight sensor sense the two standard samples to obtain a first read value and a second read value, respectively. Then, a first parameter, a second parameter, a first calibration coefficient and a second calibration coefficient are defined according to the first read value and the second read value. Then, a calibration formula is generated and stored in the memory unit.

公开(公告)号：US20210149502A1

公开(公告)日：2021-05-20

申请号：US16730268

申请日：2019-12-30

Applicant: Primax Electronics Ltd.

Inventor： Shih-Ying Hsiao

IPC: G06F3/039 ,  G06F3/0354

Abstract: A mouse peripheral device includes a mouse pad module and a mouse cable holder. The mouse cable holder includes a base and a cable clamp element. The base is installed on the mouse pad module. The cable clamp element is installed on the base. The mouse peripheral device can be assembled and disassembled by the user. Consequently, the volume of the product package is reduced, and the mouse peripheral device is easily carried by the user.

公开(公告)号：US20210138808A1

公开(公告)日：2021-05-13

申请号：US16736229

申请日：2020-01-07

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： YU-LUN CHANG

IPC: B41J13/10 ,  B41J23/38 ,  B42C1/12

Abstract: A paper processing device includes a casing and a paper pressing mechanism. The casing includes a paper placement platform. The paper placement platform is extended externally from the casing so as to support the plural papers. The paper pressing mechanism includes a pressing bar, a driving mechanism and a linking mechanism. The pressing bar includes a pressing structure. The linking mechanism is connected between the driving mechanism and the pressing bar. While the linking mechanism is driven by the driving mechanism, the pressing bar is moved with the linking mechanism and rotated relative to the paper placement platform, so that the pressing structure is moved from an initial position to a target position. When the pressing structure is moved to the target position and contacted with the plural papers, a guiding channel is defined between the pressing structure and the paper placement platform.

公开(公告)号：US11002440B1

公开(公告)日：2021-05-11

申请号：US16940116

申请日：2020-07-27

Applicant: Primax Electronics Ltd.

Inventor： Wei-Ping Chan ,  Wei-Chiang Huang ,  Chuan-Tai Hsiao ,  Xiu-Mei Pan

IPC: F21V23/00 ,  F21V33/00 ,  F21V23/06 ,  F21Y115/10

Abstract: A light source module includes a transparent conductive substrate and plural light source groups. The transparent conductive substrate includes a substrate base, plural positive electrodes, plural negative electrodes and plural gaps. The plural positive electrodes and the plural negative electrodes are installed on the substrate base. Each light source group includes plural light-emitting elements. The plural positive electrodes are separately arranged. Consequently, the resistances of the light-emitting elements are substantially equal.

公开(公告)号：US20210098211A1

公开(公告)日：2021-04-01

申请号：US16725060

申请日：2019-12-23

Applicant: Primax Electronics Ltd.

Inventor： Yi-Shu Lee ,  Lei-Lung Tsai

IPC: H01H13/85 ,  H01H13/7065

Abstract: A keyboard device includes a membrane circuit board, a base plate and a key structure. The base plate is located under the membrane circuit board. The key structure includes a lever structure, a resilience element or an interference structure. While the keycap is depressed, the lever structure, the resilience element or the interference structure collides with a keycap of the key structure, the base plate or a connecting element of the key structure. Consequently, the operating sound is generated, and the operating feedback is provided to the user.

公开(公告)号：US10963069B1

公开(公告)日：2021-03-30

申请号：US16723941

申请日：2019-12-20

Applicant: Primax Electronics Ltd.

Inventor： Jian-Bin Wu ,  Quan Xia

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

Abstract: A mouse device includes a casing, a scroll wheel, a circuit board, an encoder and a microprocessor. The scroll wheel is partially exposed outside the casing. The circuit board is disposed within the casing. The encoder is disposed within the casing. The encoder issues an encoded signal to the circuit board in response to a rotation of the scroll wheel. The microprocessor is electrically connected with the circuit board, and acquires a rotating time period corresponding to one-unit rotation amount of the scroll wheel. If the rotating time period is shorter than a predetermined time period, the microprocessor generates a first control command. If the rotating time period is longer than or equal to the predetermined time, the microprocessor generates a second control command.

公开(公告)号：US10960587B2

公开(公告)日：2021-03-30

申请号：US16017192

申请日：2018-06-25

Applicant: Primax Electronics Ltd.

Inventor： Yi-Te Chou ,  Che-An Li

IPC: B29C45/14 ,  B29C45/04 ,  B29L31/00

Abstract: A keycap forming method includes the following steps. Firstly, a stabilizer bar is fixed on a first male mold. Then, a keycap is formed through a second male mold and a female mold according to an injection molding process. Then, the second male mold and the female mold are separated from each other, so that the keycap is fixed on the female mold. Then, the first male mold and the female mold are stacked on each other, so that the stabilizer bar and the keycap are combined together. Then, the first male mold and the female mold are separated from each other. Consequently, the stabilizer bar is detached from the first male mold. By using the keycap forming method, it is not necessary to manually assemble the stabilizer bar with the keycap.

公开(公告)号：US20210005407A1

公开(公告)日：2021-01-07

申请号：US16581144

申请日：2019-09-24

Applicant: Primax Electronics Ltd.

Inventor： Yu-Ming Lin

IPC: H01H13/83 ,  G06F3/023 ,  H01H13/7065

Abstract: A keyboard device includes a membrane circuit board, a base plate, a key structure and a light-emitting element. The key structure includes a keycap, a connecting element and an elastic element. The connecting element is arranged between the base plate and the keycap. The elastic element is arranged between the keycap and the membrane circuit board. The light-emitting element is electrically connected with the membrane circuit board and located under the elastic element. After the light beams from the light-emitting element are projected upwardly and transmitted through the elastic element, the light beams are uniformly projected to the keycap. Consequently, the keycap has the uniform illuminous efficacy.

公开(公告)号：US10885833B2

公开(公告)日：2021-01-05

申请号：US16518497

申请日：2019-07-22

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： Han-Pin Kao ,  Wei-Chiang Huang ,  Wei-Ping Chan

IPC: G09G3/34 ,  G09G3/32 ,  H01L27/32 ,  H04N5/74

Abstract: A display device is disposed within a casing of an electronic device. The display device includes a display part, at least one light source, a projection part and an imaging structure. The display part is disposed on the casing and exposed outside. The at least one light source is disposed within the casing, and emits at least one light beam. The projection part is arranged between the at least one light source and the display part, and has an image region. After the at least one light beam passes through the projection part, a projection pattern corresponding to the image region is generated. The imaging structure is disposed on the display part. The imaging structure receives the projection pattern, so that the projection pattern is shown on the display part.