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公开(公告)号：US10097041B2
公开(公告)日：2018-10-09
申请号：US15029741
申请日：2014-09-23
Applicant: LG ELECTRONICS INC.
Inventor： Byungsang Jung , Beomseok Chae , Yongcheol Park , Kyunghwan Kim
Abstract: The present specification which relates to a wireless power transmission device and a control method, capable of transmitting and receiving power wirelessly comprises a power supply unit for supplying power to a receiving device to transmit power wirelessly; and a power transmission control unit for, periodically generating a waveform with a particular frequency, measuring an attenuation coefficient of the waveform at each cycle, measuring a variation in the attenuation coefficient at each cycle, and determining the type of an external material. The present invention has a technical feature wherein the power transmission control unit determines whether to transmit power wirelessly to the receiving device on the basis of the type of the external material.
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102.发明授权公开(公告)号：US12301025B2
公开(公告)日：2025-05-13
申请号：US18595183
申请日：2024-03-04
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: The present specification provides a wireless power transmission device comprising: a power conversion unit configured so as 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 so as to perform an initial calibration for a power parameter prior to the power transfer phase, receive, from the wireless power receiving device, a first received power packet indicating the power received by the wireless power receiving device during the power transfer phase, and detect a foreign object by using the received power and a first power loss determined on the basis of the initial calibration.
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103.发明授权公开(公告)号：US12278507B2
公开(公告)日：2025-04-15
申请号：US18678383
申请日：2024-05-30
Applicant: LG Electronics Inc.
Inventor： Yongcheol Park , Gyunghwan Yook
Abstract: A wireless power transmitter including a power conversion unit configured to transmit wireless power generated based on magnetic coupling in a power transfer phase and a control unit configured to receive, from the wireless power receiver operating at a first operating point, a first received power packet of the first operating point and a second received power packet of the first operating point based on the first received power packet of the first operating point and the second received power packet of the first operating point and configured to receive a first received power packet of the second operating point and a second received power packet of the second operating point related to power calibration and construct a second power calibration curve based on the first received power packet of the second operating point and the second received power packet of the second operating point.
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104.发明授权公开(公告)号：US12261657B2
公开(公告)日：2025-03-25
申请号：US18530766
申请日：2023-12-06
Applicant: LG Electronics Inc.
Inventor： Yongcheol Park
Abstract: The present application describes a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transmission device, a wireless power generated on the basis of magnetic coupling in a power transmission phase; and a communication and control circuit configured to transmit, to the wireless power transmission device, a configuration packet including first dual data stream information, or to receive, from the wireless power transmission device, a capability packet including second dual data stream information. Upper layer data can be effectively exchanged by clearly recognizing whether the upper layer data is bidirectionally transmitted between the wireless power transmission device and the wireless power reception device, and accuracy of power loss and saving of processing resources can be achieved by synchronizing the timing of calculating the power loss between the wireless power transmission device and the wireless power reception device.
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105.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
106.发明授权公开(公告)号：US12166365B2
公开(公告)日：2024-12-10
申请号：US17999323
申请日：2021-05-20
Applicant: LG ELECTRONICS INC.
Inventor： Jingu Choi , Yongcheol Park , Minsoo Lee , Gyunghwan Yook
Abstract: A method by which a wireless power transmitter transmits wireless power, according to one embodiment of the present specification, comprises: a ping step of transmitting a digital ping, and receiving a response to the digital ping from a wireless power receiver; a configuration step of receiving, from the wireless power receiver, a configuration packet including information about whether the wireless power receiver supports an authentication function; and a power transmission step of transmitting wireless power to the wireless power receiver, wherein the power transmission step includes a low-power transmission step of transmitting low wireless power, an authentication step of authenticating the wireless power transmitter on the basis the supporting of the authentication function by the wireless power receiver, and a high-power transmission step of transmitting high wireless power on the basis of the successful authentication of the wireless power transmitter in the authentication step.
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107.发明授权公开(公告)号：US12136965B2
公开(公告)日：2024-11-05
申请号：US17525122
申请日：2021-11-12
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: A wireless power transmitter includes a power converter configured to transfer wireless power to a wireless power receiver, and a controller configured to communicate with the wireless power receiver to control transmission of the wireless power. The controller is configured to receive, from the wireless power receiver, an authentication request message for authentication of the wireless power transmitter, and transmit, to the wireless power receiver, a data stream including a plurality of auxiliary data transport (ADT) data packets in which at least a part of an authentication response message is divided. The data stream includes at a beginning an auxiliary data control packet informing a start of the data stream.
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108.发明授权公开(公告)号：US12046927B2
公开(公告)日：2024-07-23
申请号：US17908463
申请日：2021-03-04
Applicant: LG ELECTRONICS INC.
Inventor： Jingu Choi , Minsoo Lee , Hongwon Lee , Jinkwon Lim , Jaehyu Kim , Yongcheol Park
Abstract: A device for transmission of wireless power according to an embodiment of the present specification comprises: a power conversion circuit for transmitting the wireless power to a wireless power receiving device; and a communication/control circuit for communicating with the wireless power receiving device and controlling the wireless power, wherein the communication/control circuit transmits a response to a reception data packet received from the wireless power receiving device or a transmission data packet transmitted to the wireless power receiving device on the basis of a timeout period, and the timeout period is changed according to a communication speed between the communication/control circuit and the wireless power receiving device.
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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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110.发明授权公开(公告)号：US11949250B2
公开(公告)日：2024-04-02
申请号：US17715475
申请日：2022-04-07
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: The present specification provides a wireless power transmission device comprising: a power conversion unit configured so as 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 so as to perform an initial calibration for a power parameter prior to the power transfer phase, receive, from the wireless power receiving device, a first received power packet indicating the power received by the wireless power receiving device during the power transfer phase, and detect a foreign object by using the received power and a first power loss determined on the basis of the initial calibration.
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