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公开(公告)号：US20250079910A1
公开(公告)日：2025-03-06
申请号：US18921798
申请日：2024-10-21
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK
Abstract: A method for transmitting wireless power according to one embodiment of the present specification involves: receiving information about received power values for two or more correction points for power correction from a device for receiving wireless power; constructing a power correction curve, for detecting foreign substances, on the basis of the information about the received power values; and transmitting a data packet requesting initiation of a power correction protocol for updating the power correction curve.
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82.发明申请公开(公告)号：US20250079902A1
公开(公告)日：2025-03-06
申请号：US18953367
申请日：2024-11-20
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK
Abstract: A wireless power receiver comprises: a power pickup circuit for receiving wireless power from a wireless power transmitter on the basis of a magnetic coupling with the wireless power transmitter, and converting an alternating current signal generated by the wireless power into a direct current signal; and a communication/control circuit for communicating with the wireless power transmitter and controlling the wireless power that is received, wherein the communication/control circuit transmits, to the wireless power transmitter, an end power transfer packet for detecting a foreign object in a primary power transfer step of receiving the wireless power so as to enable the wireless power transmitter to detect the foreign object, receives a ping signal from the wireless power transmitter which has estimated that no foreign object is present, and transmits a data packet, in response to the ping signal, for entering a secondary power transfer step.
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83.发明申请公开(公告)号：US20250038788A1
公开(公告)日：2025-01-30
申请号：US18913785
申请日：2024-10-11
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK
Abstract: A wireless power transmitter, a wireless power receiver and related methods are discussed. The wireless power transmitter can include 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. The controller is configured to transmit, to the wireless power receiver, a data stream including a plurality of auxiliary data transport 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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84.发明申请公开(公告)号：US20250038579A1
公开(公告)日：2025-01-30
申请号：US18910940
申请日：2024-10-09
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK , Kyunghwan KIM
Abstract: The present specification provides a wireless power reception apparatus comprising: a power pick-up unit configured to receive wireless power from a wireless power transmission apparatus by magnetic coupling with the wireless power transmission apparatus and convert an AC signal generated by the wireless power into a DC signal; a communication/control unit configured to receive the DC signal from the power pick-up unit and control the wireless power; and a load configured to receive the DC signal from the power pick-up unit. When foreign material is detected before power transmission, wireless power transmission is sustained on the basis of a safe basic power profile of 5 W or less, without interrupting power transmission, and thus, a charging delay can be prevented and the accuracy and reliability of detection of foreign material can be increased despite individual characteristics of the wireless power reception apparatus.
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公开(公告)号：US20240405614A1
公开(公告)日：2024-12-05
申请号：US18805733
申请日：2024-08-15
Applicant: LG Electronics Inc.
Inventor： Jingu CHOI , Jinkwon LIM , Taeyoung SONG , Yongcheol PARK , Joonho PARK
Abstract: A wireless power receiver may comprise: a power pick-up circuit configured to receive power wirelessly from a wireless power transmitter including a plurality of primary coils by magnetic coupling to the wireless power transmitter at an operating frequency and to convert an alternating current signal induced by the wireless power into a direct current signal; a communication/control circuit receiving the direct current signal supplied from the power pick-up circuit and including an in-band communication module which communicates with the wireless power transmitter by using the operating frequency, and an out-band communication module which communicates with the wireless power transmitter by using any frequency except for the operating frequency; and a load configured to receive the direct current signal supplied from the power pick-up circuit, wherein the communication/control circuit transmits a message informing of the start of power allocation negotiation, to other wireless power receivers by using the out-band communication module.
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Patent Agency Ranking
公开(公告)号：US20240388135A1
公开(公告)日：2024-11-21
申请号：US18786043
申请日：2024-07-26
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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87.发明公开公开(公告)号：US20240356384A1
公开(公告)日：2024-10-24
申请号：US18579189
申请日：2021-07-13
Applicant: LG Electronics Inc.
Inventor： Minsoo LEE , Yongcheol PARK , Gyunghwan YOOK , Taewook KWON , Jinho YOUN
CPC classification number: H02J50/80 , H02J7/00045 , H02J50/10 , H02J50/40
Abstract: The present disclosure provides a method, performed by a wireless power receiver, for receiving wireless power in a wireless power transmitting system, and an apparatus using the method, the method comprising: transmitting, to a wireless power transmitter, a configuration packet including a field regarding availability of out-of-band (OB) of the wireless power receiver; receiving, from the wireless power transmitter, a capability packet including a field regarding availability of OB of the wireless power transmitter; and establishing a Bluetooth low energy (BLE) connection with the wireless power transmitter on the basis of the configuration packet and the capability packet, wherein the wireless power receiver transmits a first BLE packet including a plurality of Qi packets to the wireless power transmitter through the LBE connection, and the wireless power receiver receives a response related to the first BLE packet from the wireless power transmitter through the BLE connection.
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88.发明公开公开(公告)号：US20240250560A1
公开(公告)日：2024-07-25
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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89.发明公开公开(公告)号：US20240204573A1
公开(公告)日：2024-06-20
申请号：US18287120
申请日：2022-04-18
Applicant: LG Electronics Inc.
Inventor： Taewook KWON , Gyunghwan YOOK , Jinho YOUN , Hongkwon KIM , Yongcheol PARK
CPC classification number: H02J50/60 , H02J50/12 , H02J50/402 , H02J50/80 , H04B5/79
Abstract: The present disclosure provides a method for transmitting wireless power performed by a wireless power transmitter in a wireless power transmission system, and an apparatus using same, the method comprising: receiving information for detecting whether a foreign object (FO) exists from a wireless power receiver; detecting whether the FO exists before transmission of wireless power on the basis of the information; transmitting the wireless power to the wireless power receiver on the basis of detecting that the FO does not exist; and calculating a slot quality factor on a slot while transmitting the wireless power, wherein the slot quality factor is a quality factor used to determine whether an FO has been inserted while transmitting the wireless power, and a starting point of the slot is a point at which a voltage value of a coil in a wireless power transmitter is the maximum value and a current value of the coil is 0.
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90.发明公开公开(公告)号：US20240146829A1
公开(公告)日：2024-05-02
申请号：US18278981
申请日：2022-02-25
Applicant: LG ELECTRONICS INC.
Inventor： Jaeyeol KIM , Seonghun LEE , Jinho YOUN , Yongcheol PARK
Abstract: The present disclosure relates to a method for transmitting data packet information, wherein the method is performed by a wireless power transmitter in a wireless power transmission system, and comprises the steps of: entering a power transfer phase; receiving a plurality of control error (CE) packets from a wireless power receiver during the power transfer phase; determining the intervals between the plurality of CE packets; and transmitting the data packet information to the wireless power receiver during the power transfer phase on the basis of the intervals, wherein the length of the data packet information is determined on the basis of the length of the intervals.
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