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21.发明公开公开(公告)号：US20230318363A1
公开(公告)日：2023-10-05
申请号：US18024675
申请日：2021-09-06
Applicant: LG Electronics Inc.
Inventor： Hyoungseok KIM , Jaeyeol KIM , Seonghun LEE , Gyunghwan YOOK , Hongkwon KIM
Abstract: A wireless power transmitting device according to an embodiment of the present specification transmits wireless power to a wireless power receiving device, and includes a power conversion circuit including a primary coil for transmitting the wireless power to the wireless power receiving device and a communication/control circuit for communicating with the wireless power receiving device and controlling the power conversion circuit, wherein, to detect foreign substances between the wireless power receiving device and the wireless power transmitting device, the communication/control circuit stops the transmission of the wireless power for a slot time, detects the foreign substances on the basis of a change in the voltage or current of the primary coil within the slot time, and sets the slot time to start from a point in time when the current of the primary coil is 0.
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公开(公告)号：US20230299615A1
公开(公告)日：2023-09-21
申请号：US18018679
申请日：2021-07-30
Applicant: LG Electronics Inc.
Inventor： Jinho YOUN , Jingu CHOI , Gyunghwan YOOK , Yongcheol PARK
Abstract: A wireless power receiving device according to one embodiment of the present specification comprises: a power pickup circuit for receiving wireless power from a wireless power transmitting device; and a communication/control circuit for communicating with the wireless power transmitting device by using in-band communication using a power signal of the wireless power and/or out-band communication, which is wireless communication that differs from the in-band communication, and for controlling the reception of the wireless power, wherein the communication/control circuit terminates the connection of the out-band communication on the basis of the removal of the power signal from the wireless power transmitting device in a state in which the connection of the wireless power transmitting device and the out-band communication is established.
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23.发明公开公开(公告)号：US20230253837A1
公开(公告)日：2023-08-10
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：US20230208206A1
公开(公告)日：2023-06-29
申请号：US17919707
申请日：2021-04-20
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK , Minsoo LEE , Gyunghwan YOOK , Jingu CHOI
Abstract: A wireless power reception device according to an embodiment of the present specification comprises a controller for: receiving wireless power from a wireless power transmission device, and performing power pickup for receiving the wireless power from the wireless power transmission device by magnetic coupling with the wireless power transmission device at an operating frequency; and communicating with the wireless power transmission device by using at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency, and controlling reception of the wireless power, wherein, in the power transmission step of receiving the wireless power, the controller transmits or receives, using the in-band communication, a message for controlling the wireless power, and transmits or receives, using the out-band communication, an authentication message for authentication of the wireless power transmission device.
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公开(公告)号：US20230088690A1
公开(公告)日：2023-03-23
申请号：US17988613
申请日：2022-11-16
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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Patent Agency Ranking
26.发明申请公开(公告)号：US20210044152A1
公开(公告)日：2021-02-11
申请号：US16979821
申请日：2019-03-07
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK , Gyunghwan YOOK
Abstract: The present invention relates to a device and method for supporting improved communication speed in a wireless power transmission system. The present specification provides a method comprising the steps of: generating wireless power at an operating frequency; configuring n, as the number of cycles per bit, which is used for transmitting one bit at the operating frequency; aligning each bit of the data with the n cycles; causing the operating frequency to transition between differential biphases according to the value of said each bit during the n cycles; and transmitting the wireless power to a wireless power receiving device on the basis of magnetic coupling at the transitioning operating frequency.
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27.发明公开公开(公告)号：US20240322614A1
公开(公告)日：2024-09-26
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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公开(公告)号：US20240243618A1
公开(公告)日：2024-07-18
申请号：US18562001
申请日：2022-05-17
Applicant: LG Electronics Inc.
Inventor： Minsoo LEE , Gyunghwan YOOK , Jinho YOUN , Yongcheol PARK
Abstract: The present disclosure provides a method, performed by a wireless power transmitter, for transmitting wireless power in a wireless power transmission system, and an apparatus using same, the method comprising: receiving, from at least one wireless power transmitter, a configuration packet notifying the availability of out of band (OB) in a configuration phase; transmitting, to the at least one wireless power receiver, a capability packet notifying the availability of the OB in a negotiation phase; and establishing a Bluetooth low energy (BLE) connection with the at least one wireless power receiver on the basis of the configuration packet and the capability packet, wherein the BLE connection is a connection based on a BLE isochronous (ISO) channel, and through the BLE connection, the at least one wireless power transmitter exchanges at least one piece of power control data with the at least one wireless power receiver in at least one sub-event included in an interval of the BLE ISO channel.
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公开(公告)号：US20240088713A1
公开(公告)日：2024-03-14
申请号：US18272998
申请日：2022-01-25
Applicant: LG ELECTRONICS INC.
Inventor： Jinho YOUN , Gyunghwan YOOK , Yongcheol PARK
CPC classification number: H02J50/10 , H02J50/402 , H02J50/80
Abstract: The present specification provides a method by which a wireless power receiver transmits support information in a wireless power transmission system, and a device, the method comprising: entering a configuration phase with a wireless power transmitter; and transmitting support information to the wireless power transmitter in the configuration phase, wherein the support information includes information related to a power transfer protocol supported by means of the wireless power receiver.
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30.发明公开公开(公告)号：US20230344466A1
公开(公告)日：2023-10-26
申请号：US18217137
申请日：2023-06-30
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK , Gyunghwan YOOK , Seonghun LEE
CPC classification number: H04B5/0037 , H02J50/12 , H04W36/30 , H02J50/40
Abstract: An apparatus and a method for performing handover between heterogeneous communication methods. A wireless power transmission apparatus and reception apparatus can indicate whether to support out-band communication thereof on the basis of an out-band flag. The wireless power transmission apparatus can request the wireless power reception apparatus to start a handover by using a bit pattern requesting the handover. The handover procedure to out-band may be performed in a negotiation phase or may be performed in a separate handover phase. Information for establishing an out-band communication connection can be transmitted from the wireless power reception apparatus to the wireless power transmission apparatus through in-band communication. Also, even after the handover to the out-band is completed, it is possible to periodically or intermittently perform the in-band communication in a power transmission phase to detect a swap of the wireless power reception apparatus.
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