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公开(公告)号：US20240162749A1
公开(公告)日：2024-05-16
申请号：US18550368
申请日：2022-05-16
Applicant: Honor Device Co., Ltd.
CPC classification number: H02J50/005 , H02J7/342 , H02J50/10 , H02J50/402 , H02J50/90 , G06F3/03545
Abstract: A wireless charging system and a wireless charging stylus box. The wireless charging system includes a wireless charging device and a stylus. The wireless charging device includes an accommodating groove and a transmit coil. The stylus includes a stylus body and a receive coil, and an end face of a magnetic core in the receive coil faces a sidewall of the stylus body, so that after the stylus is placed in the accommodating groove, the end face that is of the magnetic core in the transmit coil and that faces the accommodating groove and an end face that is of the magnetic core in the receive coil and that faces the transmit coil coupled to the receive coil have at least regions partially disposed directly opposite to each other.
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Patent Agency Ranking
公开(公告)号：US20240028141A1
公开(公告)日：2024-01-25
申请号：US17998417
申请日：2022-01-27
Applicant: Honor Device Co., Ltd.
Inventor： Feng Wang , Yuan Wu , Wei Zhang , Chao Wang , Lilie Zhao
CPC classification number: G06F3/038 , H02J50/80 , H02J50/10 , G06F3/021 , G06F3/03545 , H02J7/342 , G06F1/1607 , G06F2203/0384
Abstract: Embodiments of this application provide a wireless charging system, a chip, and a wireless charging circuit. The wireless charging system includes an electronic device and a stylus, where the electronic device is configured to wirelessly charge the stylus; and the stylus includes a wireless charging circuit. The wireless charging circuit includes a first coil, a chip, and a first battery, the chip includes a rectifier, a charger unit, a micro-control unit, and a protocol encoding/decoding unit. The charger unit includes a voltage-stabilizing charging circuit, a boost charging circuit, or a switched capacitor charging circuit; and the charger unit is configured to charge the first battery by using the direct current signal from the rectifier. For the stylus, energy is coupled from the coil, passes through the chip, and then is directly output to a battery of the stylus.
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公开(公告)号：US12130970B2
公开(公告)日：2024-10-29
申请号：US17924223
申请日：2022-01-14
Applicant: HONOR DEVICE CO., LTD.
IPC: G06F3/023 , G06F1/16 , G06F3/02 , G06F3/0354 , H02J50/12
CPC classification number: G06F3/0231 , G06F1/1669 , G06F3/0202 , G06F3/03545 , H02J50/12
Abstract: This application discloses a wireless keyboard. The wireless keyboard includes a connection portion. The connection portion includes an accommodating cavity with an opening at an end and used for accommodating an electronic stylus. A wireless charging coil is arranged in the accommodating cavity. A charging interface and a wireless charging control module are arranged in the wireless keyboard. The wireless charging control module is connected to the charging interface and the wireless charging coil. The charging interface can receive a direct current signal. The wireless charging control module can convert, if it is detected that a direct current signal is inputted to the charging interface, the direct current signal into an alternating current signal and transmit the alternating current signal to the wireless charging coil. The wireless charging coil generates an alternating electromagnetic field in response to the alternating current signal, to wirelessly charge the electronic stylus.
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公开(公告)号：US11995251B2
公开(公告)日：2024-05-28
申请号：US17998417
申请日：2022-01-27
Applicant: Honor Device Co., Ltd.
Inventor： Feng Wang , Yuan Wu , Wei Zhang , Chao Wang , Lilie Zhao
IPC: G06F3/038 , G06F1/16 , G06F3/02 , G06F3/0354 , G06F3/04842 , G06F3/04883 , G06F40/166 , H02J7/34 , H02J50/10 , H02J50/80
CPC classification number: G06F3/03545 , G06F1/1607 , G06F3/021 , G06F3/038 , G06F3/0383 , G06F3/04842 , G06F3/04883 , G06F40/166 , H02J7/342 , H02J50/10 , H02J50/80 , G06F2203/0384
Abstract: Embodiments of this application provide a wireless charging system, a chip, and a wireless charging circuit. The wireless charging system includes an electronic device and a stylus, where the electronic device is configured to wirelessly charge the stylus; and the stylus includes a wireless charging circuit. The wireless charging circuit includes a first coil, a chip, and a first battery, the chip includes a rectifier, a charger unit, a micro-control unit, and a protocol encoding/decoding unit. The charger unit includes a voltage-stabilizing charging circuit, a boost charging circuit, or a switched capacitor charging circuit; and the charger unit is configured to charge the first battery by using the direct current signal from the rectifier. For the stylus, energy is coupled from the coil, passes through the chip, and then is directly output to a battery of the stylus.
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公开(公告)号：US20250038583A1
公开(公告)日：2025-01-30
申请号：US18546022
申请日：2022-12-26
Applicant: Honor Device Co., Ltd.
Inventor： Youjun Zhang , Yuan Wu , Wujia Zhang , Yulei Wen , Jie Hu
IPC: H02J50/90 , G01D5/24 , G06F3/0354 , H02J50/10
Abstract: This application provides an electronic device and a stylus in-position determining method. The electronic device includes: an inverter circuit. When a Q value of the transmit coil is detected, the controller controls the resonant capacitor adjustment circuit to operate; the Q value detection circuit is configured to obtain a voltage signal representing a Q value; and the controller obtains the Q value based on the voltage signal, and when the Q value is greater than a preset threshold, determines that a stylus is attached to the electronic device. The resonant capacitor adjustment circuit participates in operation during Q value detection.
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公开(公告)号：US20230179019A1
公开(公告)日：2023-06-08
申请号：US17995871
申请日：2022-01-05
Applicant: Honor Device Co., Ltd.
CPC classification number: H02J50/005 , G06F3/0231 , H02J50/10 , H02J50/502 , G06F3/0213
Abstract: A wireless charging apparatus which includes: an accommodation structure and a first charging control circuit. The accommodation structure includes an accommodation cavity and a first wireless charging coil, where the first wireless charging coil can be arranged around the accommodation cavity. In addition, the first wireless charging coil generate an alternating current magnetic field. The accommodation cavity is configured to accommodate a stylus, and a second wireless charging coil is arranged in the stylus. When the stylus is accommodated in the accommodation cavity, the second wireless charging coil is also accommodated in the first wireless charging coil. In this case, the second wireless charging coil can induce an alternating current magnetic field generated by the first wireless charging coil in a plurality of directions, to be coupled to the first wireless charging coil.
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