公开(公告)号：US11240669B2

公开(公告)日：2022-02-01

申请号：US16448430

申请日：2019-06-21

Applicant: Primax Electronics Ltd.

Inventor： Chih-Feng Chien ,  Chin-An Lin ,  Yun-Jung Lin

IPC: H04W12/50 ,  H04L9/32 ,  H03M13/09

Abstract: A wireless mouse includes a mouse body and a wireless receiver. The wireless receiver is connected with a computer host. When the mouse body is operated by a user, an original information is generated. The original information is encrypted and converted into an encryption information by the mouse body. The wireless receiver receives the encryption information from the mouse body. After the encryption information is received by the wireless receiver, the encryption information is decrypted by the wireless receiver. Consequently, the encryption information is restored into the original information. After the computer host receives the original information through the wireless receiver, the computer host performs a corresponding operation.

公开(公告)号：US11177091B1

公开(公告)日：2021-11-16

申请号：US17081599

申请日：2020-10-27

Applicant: Primax Electronics Ltd.

Inventor： Lei-Lung Tsai ,  Chuang-Shu Jhuang ,  Song-Hui Han

IPC: H01H13/70 ,  H01H13/7065

Abstract: A keyboard device includes a base plate, a membrane circuit board and a key. The key includes a keycap, a connecting assembly, a first stabilizer bar and a second stabilizer bar. The connecting assembly is connected between the keycap and the base plate. The first stabilizer bar and the second stabilizer bar are connected between the keycap and the connecting assembly. While the keycap is moved upwardly or downwardly relative to the base plate, the first stabilizer bar and the second stabilizer bar are swung to stabilize the key. Since the first stabilizer bar and the second stabilizer bar are connected between the keycap and the connecting assembly, the first stabilizer bar and the second stabilizer bar will not readily collide with or knock on the base plate. During the operation, the generated noise is reduced. Consequently, the operating comfort to the user is enhanced.

公开(公告)号：US11177084B1

公开(公告)日：2021-11-16

申请号：US17108404

申请日：2020-12-01

Applicant: Primax Electronics Ltd.

Inventor： Chien-Hung Liu

IPC: H01H3/12 ,  H01H13/702

Abstract: A key structure includes a keycap, an elastic buffering element, a base plate, a first supporting element, a second supporting element and an elastomer. The elastic buffering element is installed in a locking part of the keycap. The first supporting element is connected with the keycap and the base plate. The keycap is movable upwardly or downwardly relative to the base plate through the first supporting element. A first end of the second supporting element is pivotally coupled to the base plate. A second end of the second supporting element is penetrated through a pivotal hole of the elastic buffering element and a clamping recess of the locking part. The elastomer is arranged between the keycap and the base plate. An inner diameter of the at least one pivotal hole is slightly smaller than an inner diameter of the clamping recess.

公开(公告)号：US11175765B1

公开(公告)日：2021-11-16

申请号：US17183995

申请日：2021-02-24

Applicant: Primax Electronics Ltd.

Inventor： Tai-Sou Huang

IPC: G06F3/041 ,  G06F3/0354 ,  G06F1/16 ,  H01H21/24 ,  G06F3/01

Abstract: A touchpad module includes a substrate, a touch member, a switch, an elastic element and at least four protrusion structures. The substrate includes at least four first openings. A bottom surface of the touch member faces a top surface of the substrate. The switch is coupled with the bottom surface of the touch member. When any point of the touch member is pressed down, the switch is in contact with the substrate. The elastic element includes a fixed part and a movable part. The fixed part is coupled with a portion of a bottom surface of the substrate. The movable part is arranged around the fixed part. The movable part is located beneath the at least four first openings. The at least four protrusion structures are coupled with the touch member and inserted into the corresponding first openings.

公开(公告)号：US11175752B1

公开(公告)日：2021-11-16

申请号：US17031757

申请日：2020-09-24

Applicant: Primax Electronics Ltd.

Inventor： Chun-Lin Chu ,  Hsiang-Yu Ou ,  Li-Kuei Cheng ,  Shu-An Huang

IPC: G06F3/0354 ,  G06F3/038

Abstract: A roller mouse includes a casing, a wheel module, a swingable assembly and an adjusting element. The wheel module includes a wheel element. The swingable assembly is fixed on the wheel module, and located near the wheel element. When the adjusting element is in a first position, the swingable assembly is contacted with the wheel element, so that the wheel module is in a first clicking mode. When the adjusting element is moved to a second position, the swingable assembly is pushed by the adjusting element, and the swingable assembly is separated from the wheel element, so that the wheel module is in a second clicking mode.

公开(公告)号：US20210351601A1

公开(公告)日：2021-11-11

申请号：US16912170

申请日：2020-06-25

Applicant: PRIMAX ELECTRONICS LTD.

Inventor： PAO-CHUNG CHAO ,  PEI-MING CHANG ,  SHIH-CHIEH HSU ,  WEI-LUNG HUANG

IPC: H02J7/00 ,  H04R1/10 ,  H02J7/02

Abstract: A wireless sound output device includes a wireless earbud and a charging base. The wireless earbud is placed in the charging base. If a true wireless stereo Bluetooth controller of the wireless earbud detects that a mode switching circuit of the charging base is switched to a wireless Bluetooth receiver mode, an analog signal is transmitted to an audio source output hole of the charging base through an audio source analog signal output switching unit of the wireless earbud.

公开(公告)号：US11145474B1

公开(公告)日：2021-10-12

申请号：US17004828

申请日：2020-08-27

Applicant: Primax Electronics Ltd.

Inventor： Chin-Sung Pan ,  Chien-Hung Liu ,  Lei-Lung Tsai ,  Sheng-Fan Chang ,  Tsu-Yi Chen ,  Chun-Yuan Liu

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

Abstract: A keyboard device includes plural key structures. Each key structure includes a supporting plate, a keycap, a connecting member and a hook element. The keycap is located over the supporting plate, and movable upwardly or downwardly relative to the supporting plate. The connecting member is connected between the supporting plate and the keycap. The hook element is installed on the supporting plate. The connecting member is connected with the supporting plate through the hook element. The supporting plate is made of a first material with a first specific gravity. The hook element is made of a second material with a second specific gravity. The second specific gravity is higher than the first specific gravity.

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.