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公开(公告)号：US12244366B2
公开(公告)日：2025-03-04
申请号：US18615171
申请日：2024-03-25
Applicant: LG ELECTRONICS INC.
Inventor： Joonho Park
Abstract: The present invention relates to wireless power transmission. A method for controlling a communication connection for a wireless charging device supporting in-band communication and out-band communication, according to an embodiment of the present invention, may comprise: a step of receiving a first packet from a device through in-band communication; a step of generating a power transmission contract on the basis of the first packet; a step of performing an out-band communication connection on the basis of the power transmission contract; a step of controlling power by using out-band communication when the out-band communication connection is successful.
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公开(公告)号：US12244365B2
公开(公告)日：2025-03-04
申请号：US18138443
申请日：2023-04-24
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Jaeyeol Kim , Joonho Park , Jeongkyo Seo , Gyunghwan Yook , Jaesung Lee
IPC: H02J50/80 , G06F21/44 , H02J7/00 , H04B5/79 , H04W52/22 , H04W52/28 , H04W52/34 , H02J50/00 , H02J50/10 , H02J50/12 , H02J50/40 , H02J50/50 , H02J50/60
Abstract: A method in a wireless power transfer system can include, in response to a digital ping initiated by a wireless power transmitter, transmitting to the wireless power transmitter during a ping phase, a response signal. The method can further include transmitting, to the wireless power transmitter during a configuration phase, a configuration packet including first control information related to whether a wireless power receiver supports an authentication function to authenticate the wireless power transmitter; receiving, from the wireless power transmitter during a negotiation phase, a capability packet including second control information and a potential power value of the wireless power transmitter; and transmitting, to the wireless power transmitter during a power transfer phase, an authentication request message.
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公开(公告)号：US12081289B2
公开(公告)日：2024-09-03
申请号：US17616535
申请日：2020-01-30
Applicant: LG Electronics Inc.
Inventor： Jingu Choi , Jinkwon Lim , Minsoo Lee , Joonho Park , Jaehyu Kim , Yongcheol Park
Abstract: The present invention relates to an access control method and device in a wireless power transmission system. A wireless power transmission device comprises: a power conversion circuit configured to have a plurality of primary coils and transmit wireless power to a wireless power reception device by using the primary coil which has formed magnetic coupling to the wireless power reception device at an operating frequency; and a communication/control circuit configured to perform in-band communication with the wireless power reception device by using the operating frequency and perform out-band communication with the wireless power reception device by using a frequency other than the operating frequency, wherein the communication/control circuit can transmit information for notifying whether or not connection to the wireless power reception device is possible by using the out-band communication.
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公开(公告)号：US10601249B2
公开(公告)日：2020-03-24
申请号：US15453589
申请日：2017-03-08
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Joonho Park , Jihyun Lee
Abstract: Disclosed is a method for wirelessly transmitting, by a power transmitter including a primary coil, power. The method may include detecting the placement of objects on a surface of an interface included in the power transmitter and selecting a power receiver which belongs to the detected objects and to which power is to be transmitted, performing digital ping for applying a power signal for detecting and identifying the power receiver to the power receiver and receiving a response to the digital ping from the power receiver, obtaining information about the configuration of the power receiver and establishing a power transfer contract with the power receiver using the configuration information, and wirelessly transmitting the power to the power receiver based on the established power transfer contract.
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5.发明授权公开(公告)号：US12095524B2
公开(公告)日：2024-09-17
申请号：US17296186
申请日：2019-08-06
Applicant: LG ELECTRONICS INC.
Inventor： Jingu Choi , Joonho Park , Jinkwon Lim , Yongcheol Park
CPC classification number: H04B5/0037 , H02J50/12 , H02J50/40 , H02J50/80 , H04B5/0031 , H04W36/00 , H04W76/10
Abstract: The present invention relates to a device and a method for performing wireless power transfer on the basis of heterogeneous communication. Disclosed in the present specification is a wireless power receiving device comprising: a power pickup unit configured to receive wireless power from a wireless power transfer device by magnetically coupling with the wireless power transfer device at an operating frequency, and convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit configured to receive the direct current signal from the power pickup unit, and perform an in-band communication using the operating frequency and/or an out-band communication using a frequency other than the operating frequency; and a load configured to receive the direct current signal from the power pickup unit. Configuration information, control information and management information related to wireless power transfer, and procedures related to the exchange thereof are defined as an out-band communication protocol, and thus various applications of wireless power can be supported.
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Patent Agency Ranking
6.发明授权公开(公告)号：US12021397B2
公开(公告)日：2024-06-25
申请号：US18302938
申请日：2023-04-19
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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公开(公告)号：US11973542B2
公开(公告)日：2024-04-30
申请号：US17594212
申请日：2020-04-17
Applicant: LG ELECTRONICS INC.
Inventor： Joonho Park
CPC classification number: H04B5/0037 , H02J50/80 , H04W52/383 , H02J50/12
Abstract: The present invention relates to wireless power transmission. A method for controlling a communication connection for a wireless charging device supporting in-band communication and out-band communication, according to an embodiment of the present invention, may comprise: a step of receiving a first packet from a device through in-band communication; a step of generating a power transmission contract on the basis of the first packet; a step of performing an out-band communication connection on the basis of the power transmission contract; a step of controlling power by using out-band communication when the out-band communication connection is successful.
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公开(公告)号：US11258313B2
公开(公告)日：2022-02-22
申请号：US16793946
申请日：2020-02-18
Applicant: LG ELECTRONICS INC.
Inventor： Joonho Park , Seonghun Lee , Bongsik Kwak
Abstract: Disclosed are a wireless power transfer apparatus and a method of controlling the same. The wireless power transfer apparatus in one example can include a power transmission circuit including a plurality of coils and configured to transfer power through the plurality of coils, and a controller, wherein the controller is configured to calculate a data value of a coil with respect to each of the plurality of coils, and determine a position of an object in a charge region corresponding to the plurality of coils in a charge region based on a comparison result obtained by comparing the data value calculated for each of the plurality of coils.
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公开(公告)号：US11211833B2
公开(公告)日：2021-12-28
申请号：US16741908
申请日：2020-01-14
Applicant: LG Electronics Inc.
Inventor： Joonho Park , Seonghun Lee , Bongsik Kwak , Jihyun Lee , Sungkyu Kim
Abstract: The present invention relates to a wireless power transfer apparatus. The wireless power transfer apparatus includes: a resonant circuit unit including a plurality of coils and a plurality of capacitor elements respectively connected to the plurality of coils; and a controller configured to calculate individual quality factor of each of the plurality of coils and a total quality factor of the plurality of coils, at a resonant frequency, and calculate whether foreign matter exists on a charging surface, based on the total quality factor and the individual quality factor, at the resonance frequency. Accordingly, foreign matter on the charging surface can be detected more easily.
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10.发明授权公开(公告)号：US11949467B2
公开(公告)日：2024-04-02
申请号：US17260790
申请日：2019-07-16
Applicant: LG ELECTRONICS INC.
Inventor： Joonho Park , Bongsik Kwak , Sungkyu Kim , Yongcheol Park , Seonghun Lee , Jihyun Lee
CPC classification number: H04B5/0037 , H02J50/12 , H02J50/40 , H02J50/80 , H04B17/102 , H04W52/383
Abstract: The present invention relates to an apparatus and a method for supporting heterogeneous communication in a wireless power transmission system. The present disclosure discloses a wireless power receiver comprising: a power pickup unit configured to receive, from a wireless power transmitter, a digital ping signal or wireless power by magnetically coupling with the wireless power transmitter at an operating frequency, and to convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit configured to receive the direct current signal from the power pickup unit, and to perform at least one of an in-band communication using the operating frequency and an out-band communication using a frequency other than the operating frequency; and a load configured to receive the direct current signal from the power pickup unit. As a heterogeneous communication protocol can be selected at an early stage of power transmission between the wireless power transmitter and the wireless power receiver, it is possible to support various applications of wireless power transmission.
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