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公开(公告)号：US11289954B2
公开(公告)日：2022-03-29
申请号：US16854130
申请日：2020-04-21
Applicant: LG Electronics Inc.
Inventor： Yongcheol Park
Abstract: A wireless power transmission method executed by a power transmitter comprising multi-coils, according to one embodiment of the present invention, comprises the steps of: detecting a second power receiver while transmitting power to a first power receiver; determining at least one primary coil adequate for power transmission; by using the determined at least one primary coil, determining whether the second power receiver supports a shared mode protocol; and if the second power receiver supports the shared mode protocol, transmitting power to the first and second power receivers according to the shared mode protocol, wherein the shared mode protocol may be a protocol for simultaneously managing information exchanges between the power transmitter and multiple power receivers.
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公开(公告)号：US11205929B2
公开(公告)日：2021-12-21
申请号：US16349914
申请日：2017-11-10
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: A wireless power transfer method may include a selection phase of monitoring the placement and removal of an object for an interface surface of the power transmitter, a ping phase of receiving a response from a power receiver by performing digital ping using a first communication protocol, an identification/configuration phase of receiving a configuration packet including configuration information of the power receiver using the first communication protocol, wherein the configuration packet includes power class information of the power receiver and communication protocol information of the power receiver, a negotiation phase of selecting any one of the first communication protocol and a second communication protocol different from the first communication protocol based on the power class information and/or the communication protocol information using the first communication protocol, a calibration phase of improving the ability to detect a foreign object by controlling a specific parameter, and a power transfer phase of performing communication with the power receiver using the selected communication protocol and transferring power to the power receiver.
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公开(公告)号：US11031829B2
公开(公告)日：2021-06-08
申请号：US16938546
申请日：2020-07-24
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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公开(公告)号：US10998775B2
公开(公告)日：2021-05-04
申请号：US16488195
申请日：2019-04-16
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: Provided are a device and method for performing authentication in a wireless power transfer system. Provided is an authentication method in a wireless power transfer system including receiving a first packet including indication information on whether a target device supports an authentication function from the target device; transmitting, when the target device supports an authentication function, an authentication request message to the target device; receiving an authentication response message including a certificate on wireless charging from the target device in response to the authentication request message; and confirming authentication of the target device based on the authentication response message.
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公开(公告)号：US10749574B2
公开(公告)日：2020-08-18
申请号：US16408226
申请日：2019-05-09
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: Provided are a device and method for performing authentication in a wireless power transfer system. Provided is an authentication method in a wireless power transfer system including receiving a first packet including indication information on whether a target device supports an authentication function from the target device; transmitting, when the target device supports an authentication function, an authentication request message to the target device; receiving an authentication response message including a certificate on wireless charging from the target device in response to the authentication request message; and confirming authentication of the target device based on the authentication response message.
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Patent Agency Ranking
公开(公告)号：US10601253B2
公开(公告)日：2020-03-24
申请号：US16121128
申请日：2018-09-04
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Hyunbeom Lee
Abstract: A communication method of a wireless power receiver performing communication with a wireless power transmitter through a plurality of slots, the method includes receiving allocation of any one of the plurality of slots from the wireless power transmitter, receiving provision of at least one of the plurality of slots from the wireless power transmitter as locked slots subsequent to the allocation, and transmitting information associated with a configuration phase and information associated with a negotiation phase to the wireless power transmitter within the locked slots.
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公开(公告)号：US10340749B2
公开(公告)日：2019-07-02
申请号：US15554876
申请日：2016-02-25
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: According to one embodiment of the present invention, a method for wirelessly transmitting power by a power transmitter including a plurality of coils comprises the steps of: detecting a second power receiver while transmitting power to a first power receiver; determining at least one primary coil appropriate for transmitting power; determining, by using the determined at least one primary coil, whether the second power receiver supports a shared mode protocol; and when the second power receiver supports the shared mode protocol, transmitting power to the first and second power receivers according to the shared mode protocol, wherein the shared mode protocol may be a protocol which simultaneously manages an information exchange between the power transmitter and a plurality of power receivers.
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公开(公告)号：US10230278B2
公开(公告)日：2019-03-12
申请号：US15312527
申请日：2015-06-05
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
IPC: H02J50/80 , H02J50/12 , H02J7/02 , H04B5/00 , H04W52/54 , H04W56/00 , H04W52/48 , H04W52/58 , H04W72/04
Abstract: The present disclosure relates to a wireless power transmission method, a wireless power transmission apparatus, and a wireless charging system in a wireless power transmission field, and there is provided a communication method of a wireless power receiver performing communication with a wireless power transmitter using a plurality of slots, and the communication method may include transmitting control information to the wireless power transmitter within any one of the plurality of slots, receiving an ACK signal from the wireless power transmitter in response to the control information, performing communication with the wireless power transmitter using the any one slot, and determining the position of the any one of the plurality of slots when the ACK signal is received, wherein the position of the any one slot is determined through the counting of the remaining slots existing subsequent to the any one of the plurality of slots.
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公开(公告)号：US10135260B2
公开(公告)日：2018-11-20
申请号：US15047441
申请日：2016-02-18
Applicant: LG ELECTRONICS INC.
Inventor： Jaesung Lee , Yongcheol Park , Jun Lee
IPC: H01F27/42 , H01F38/00 , H01F37/00 , H02J5/00 , H02J50/80 , H02J50/90 , H02J7/00 , H02J7/02 , H02J50/12
Abstract: A wireless power transmitter is provided that includes a power conversion unit configured to form a wireless power signal for power transmission, and a power transmission control unit. The power transmission control unit is configured to control the power conversion unit to receive a first packet from a first wireless power receiver and a second packet from a second wireless power receiver in the same time slot, detect a collision between the first packet and the second packet, and control the power conversion unit to receive at least one of the first packet from the first wireless power receiver and the second packet from the second wireless power receiver in at least one time slot if the collision is detected at the same time slot.
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公开(公告)号：US10103553B2
公开(公告)日：2018-10-16
申请号：US14887087
申请日：2015-10-19
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: Disclosed is a method of wirelessly transmitting, the method including: a selection phase for detecting each of power receivers and sending a digital ping to the each of power receivers; an introduction phase for receiving a request from the each of power receivers for a free slot; a configuration phase for providing a series of locked slots to the each of power receivers; a negotiation phase for receiving at least one negotiation data packet from the each of power receivers using the series of locked slots; a power transfer phase for transmitting power to the each of power receivers; and a renegotiation phase for returning to the negotiation phase, wherein the renegotiation phase is a phase for returning to the negotiation phase when a change of a charge status of at least one of the each of power receivers to which the power is transmitted is detected.
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