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公开(公告)号：US11829747B2
公开(公告)日：2023-11-28
申请号：US17605787
申请日：2020-04-21
Applicant: LG Electronics Inc.
Inventor： Joonho Park , Jinkwon Lim , Jingu Choi
Abstract: The present specification relates to wireless power transmission and particularly to a wireless power reception device, wireless power transmission device, method, and system, which can receive and update firmware of a wireless power reception device and/or wireless charging transmission device by using wireless communication. According to the present specification, the firmware of the wireless power reception device and firmware of the wireless power transmission device can be maintained in an up-to-date state.
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12.发明授权公开(公告)号：US11791670B2
公开(公告)日：2023-10-17
申请号：US17986595
申请日：2022-11-14
Applicant: LG ELECTRONICS INC.
Inventor： Joonho Park , Jinkwon Lim , Jingu Choi , Yongcheol Park
CPC classification number: H02J50/80 , H02J7/00034 , H02J7/00045 , H02J50/10
Abstract: The present specification relates to a device and method for supporting heterogeneous communication in a wireless power transfer system. The present specification discloses a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transfer device, wireless power generated on the basis of magnetic coupling in a power transfer phase; and a communication and control circuit configured to transmit, to the wireless power transfer device, a first random address packet including a random address of the wireless power reception device or receive, from the wireless power transfer device, a second random address packet including a random address of the wireless power transfer device via in-band communication. By performing a handover using a random address, cross reference can be prevented and security can be enhanced, and thus a BLE connection in a wireless charging system can be more safely performed.
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公开(公告)号：US11405873B2
公开(公告)日：2022-08-02
申请号：US16494982
申请日：2018-05-02
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Jaeyeol Kim , Joonho Park , Jeongkyo Seo , Gyunghwan Yook , Jaesung Lee
Abstract: The present invention relates to a device and a method for performing authentication in a wireless power transmission system. Disclosed in the present specification is an authentication method in a wireless power transmission system, comprising the steps of: receiving, from a target device, a first packet including indication information related to whether the target device supports an authentication function; transmitting an authentication request message to the target device if the target device supports the authentication function; receiving, from the target device, an authentication response message including a certificate for wireless charging in response to the authentication request message; and confirming the authentication of the target device on the basis of the authentication response message.
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14.发明授权公开(公告)号：US11139702B2
公开(公告)日：2021-10-05
申请号：US16961554
申请日：2019-01-08
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Joonho Park , Gyunghwan Yook
Abstract: The present invention relates to an apparatus and a method for performing power calibration in a wireless power transmission system. The present specification provides a wireless power transmission apparatus comprising: a power conversion unit configured to transmit, in a power transfer phase, wireless power generated on the basis of magnetic coupling to a wireless power receiving device; and a communication/control unit configured to perform an initial calibration for a power parameter prior to the power transfer phase, receive a first received power packet from the wireless power receiving device indicating the power received by the wireless power receiving device during the power transfer phase, and detect foreign matter by using the received power and a first power loss determined on the basis of the initial calibration. It is possible to adaptively respond to a newly changed wireless charging environment to calibrate transmission power and reception power, and it is possible to detect foreign matter more precisely by detecting a power loss on the basis of the calibrated transmission and reception power.
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15.发明授权公开(公告)号：US12206258B2
公开(公告)日：2025-01-21
申请号：US17432322
申请日：2019-07-30
Applicant: LG Electronics Inc.
Inventor： Jinkwon Lim , Jaehyu Kim , Yongcheol Park , Joonho Park , Taeyoung Song , Jingu Choi
Abstract: Disclosed in the present specification is a wireless power reception device comprising: a power pickup unit configured to receive wireless power from a wireless power transmission device by means of magnetic coupling with the wireless power transmission device at an operational frequency and convert an alternating current signal generated by the wireless power into a direct current signal; a battery configured to receive the direct current signal from the power pickup unit; and a communication/control unit configured to receive the direct current signal from the power pickup unit, perform a handover procedure from in-band communication using the operational frequency to out-band communication using a frequency other than the operational frequency, perform a procedure for selecting a priority display device on which charging status information about the battery is to be displayed through the out-band communication with the wireless power transmission device, and generate the charging status information.
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Patent Agency Ranking
16.发明授权公开(公告)号：US12095280B2
公开(公告)日：2024-09-17
申请号：US17594430
申请日：2020-04-16
Applicant: LG ELECTRONICS INC.
Inventor： Joonho Park , Minsoo Lee , Jinkwon Lim , Jingu Choi
CPC classification number: H02J50/12 , H01F38/14 , H02J50/40 , H02J50/80 , H01F2038/143
Abstract: The present specification relates to a device and a method enabling in-band communication and out-band communication between a wireless power transmission device and a wireless power receiving device. The present specification discloses a wireless power transmission device, a wireless power transmission method, a wireless power receiving device, a wireless power receiving method and a wireless power transmission system, whereby the existence or not of an inter-device communication connection history is checked using whitelist information of an out-band communication module, and when corresponding to a reconnection, out-band communication is connected, and data exchange for wireless power transmission is carried out via the out-band communication.
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公开(公告)号：US11979032B2
公开(公告)日：2024-05-07
申请号：US17597500
申请日：2020-05-15
Applicant: LG ELECTRONICS INC.
Inventor： Jingu Choi , Jinkwon Lim , Minsoo Lee , Joonho Park , Jaehyu Kim , Yongcheol Park
Abstract: A wireless power transmission device according to an embodiment of the present specification comprises: a power conversion circuit for transmitting wireless power to a wireless power reception device by means of magnetic coupling with the wireless power reception device at an operating frequency; and a communication/control circuit for communicating with the wireless power reception device by using in-band communication that uses the operating frequency and/or out-band communication that uses a frequency other than the operating frequency, and for communicating with at least one other wireless power transmission device by using the out-band communication, wherein the communication/control circuit measures the distance to the wireless power reception device and transmits the information about the measured first distance to the other wireless power transmission device.
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公开(公告)号：US11664852B2
公开(公告)日：2023-05-30
申请号：US17853137
申请日：2022-06-29
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Jaeyeol Kim , Joonho Park , Jeongkyo Seo , Gyunghwan Yook , Jaesung Lee
IPC: H02J50/80 , H02J7/00 , G06F21/44 , H04W52/22 , H04W52/28 , H04W52/34 , H04B5/00 , H02J50/00 , H02J50/40 , H02J50/50 , H02J50/10 , H02J50/12 , H02J50/60
CPC classification number: H04B5/0037 , G06F21/445 , H02J7/00034 , H02J7/00045 , H02J50/80 , H04W52/223 , H04W52/286 , H04W52/34 , H02J7/00032 , H02J50/005 , H02J50/10 , H02J50/12 , H02J50/40 , H02J50/50 , H02J50/60
Abstract: A wireless power receiver includes a power pickup configured to receive a wireless power from a wireless power transmitter, and a communicator/controller configured to control the wireless power. The wireless power receiver transmits, to the wireless power transmitter during a configuration phase, a configuration packet including an AI flag related to whether the wireless power receiver supports an authentication function, receives, from the wireless power transmitter during a negotiation phase, a capability packet including an AR flag and a potential power value of the wireless power transmitter, wherein the AR flag is related to whether the wireless power transmitter supports the authentication function, and performs a power transfer phase with the wireless power transmitter. The wireless power receiver transmits, to the wireless power transmitter during the power transfer phase, an authentication request message, and receives, from the wireless power transmitter during the power transfer phase, an authentication response message.
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19.发明授权公开(公告)号：US11664688B2
公开(公告)日：2023-05-30
申请号：US17449884
申请日：2021-10-04
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Joonho Park , Gyunghwan Yook
Abstract: The present invention relates to an apparatus and a method for performing power calibration in a wireless power transmission system. The present specification provides a wireless power transmission apparatus comprising: a power conversion unit configured to transmit, in a power transfer phase, wireless power generated on the basis of magnetic coupling to a wireless power receiving device; and a communication/control unit configured to perform an initial calibration for a power parameter prior to the power transfer phase, receive a first received power packet from the wireless power receiving device indicating the power received by the wireless power receiving device during the power transfer phase, and detect foreign matter by using the received power and a first power loss determined on the basis of the initial calibration. It is possible to adaptively respond to a newly changed wireless charging environment to calibrate transmission power and reception power, and it is possible to detect foreign matter more precisely by detecting a power loss on the basis of the calibrated transmission and reception power.
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20.发明授权公开(公告)号：US11527924B2
公开(公告)日：2022-12-13
申请号：US17423844
申请日：2019-11-12
Applicant: LG ELECTRONICS INC.
Inventor： Joonho Park , Jinkwon Lim , Jingu Choi , Yongcheol Park
Abstract: The present specification relates to a device and method for supporting heterogeneous communication in a wireless power transfer system. The present specification discloses a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transfer device, wireless power generated on the basis of magnetic coupling in a power transfer phase; and a communication and control circuit configured to transmit, to the wireless power transfer device, a first random address packet including a random address of the wireless power reception device or receive, from the wireless power transfer device, a second random address packet including a random address of the wireless power transfer device via in-band communication. By performing a handover using a random address, cross reference can be prevented and security can be enhanced, and thus a BLE connection in a wireless charging system can be more safely performed.
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