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公开(公告)号：US20230336035A1
公开(公告)日：2023-10-19
申请号：US17777834
申请日：2020-11-20
Applicant: LG Electronics Inc.
Inventor： Yongcheol Park
Abstract: A wireless power receiving device according to an embodiment of the present specification is a wireless power receiving device that receives wireless power from a wireless power transmission device. The wireless power receiving device: receives wireless power from the wireless power transmission device at an operating frequency through magnetic coupling with the wireless power transmission device; communicates with the wireless power transmission device using at least one of in-band communication using the operating frequency and out-band communication using a frequency other than the operating frequency; transmits a swap inquiry message to the wireless power transmission device through one of the in-band communication and the out-band communication; and receives a response message to the swap inquiry message from the wireless power transmission device through the other of the in-band communication and the out-band communication, and determines whether to swap the wireless power transmission device.
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112.发明授权公开(公告)号：US11757310B2
公开(公告)日：2023-09-12
申请号：US17497266
申请日：2021-10-08
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：US11742896B2
公开(公告)日：2023-08-29
申请号：US18086919
申请日：2022-12-22
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
CPC classification number: H04B5/0037 , H02J50/10 , H02J50/12 , H02J50/80 , H04B5/0075 , H02J50/40
Abstract: A wireless power transmitter including a power converter configured to transfer a wireless power to a wireless power receiver; and a communicator/controller configured to control the wireless power, wherein the wireless power transmitter is configured to transmit, to the wireless power receiver, a bit pattern requesting permission to communicate; receive, from the wireless power receiver, a response packet granting the permission in response to the bit pattern; transmit, to the wireless power receiver, a first auxiliary data transport (ADT) data packet after receiving the response packet; receive, from the wireless power receiver, a not acknowledge (NAK) in response to the first ADT data packet; and transmit, to the wireless power receiver, a second ADT data packet after receiving the NAK, wherein a value of a header for the first ADT data packet is same as a value of a header for the second ADT data packet.
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公开(公告)号：US11715982B2
公开(公告)日：2023-08-01
申请号：US17673585
申请日：2022-02-16
Applicant: LG Electronics Inc.
Inventor： Yongcheol Park
CPC classification number: H02J50/80 , H02J7/02 , H04L5/0055 , H02J7/00034 , H02J7/00045 , H02J50/10 , H02J50/60 , H04B5/0037
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：US20230208194A1
公开(公告)日：2023-06-29
申请号：US17926793
申请日：2021-05-24
Applicant: LG ELECTRONICS INC.
Inventor： Minsoo Lee , Jingu Choi , Gyunghwan Yook , Yongcheol Park
CPC classification number: H02J50/10 , H02J50/402 , H02J50/80 , H04W4/80
Abstract: A wireless power transmission method by a wireless power transmission apparatus, according to an embodiment of the present specification, comprises: a ping step for transmitting a digital ping and receiving a response to the digital ping from a wireless power reception apparatus; a configuration step for receiving, from the wireless power reception apparatus, a configuration packet including information about elements of an initial power transmission contract; a contract step for receiving, from the wireless power reception apparatus, information about an element of an expanded power transmission contract for updating the initial power transmission contract to the expanded power transmission contract; and a power transmission step for transmitting wireless power to the wireless power reception apparatus, on the basis of the expanded power transmission contract, and receiving, from the wireless power reception apparatus, first control information for control of the wireless power, wherein the response to the digital ping and the configuration packet are received via in-band communication based on a power signal of the wireless power, and the first control information is received via out-band communication that is wireless communication different from the in-band communication.
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Patent Agency Ranking
116.发明授权公开(公告)号：US11670966B2
公开(公告)日：2023-06-06
申请号：US17567741
申请日：2022-01-03
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Gyunghwan Yook
CPC classification number: H02J50/10 , H02J50/12 , H02J50/80 , H02J7/00032 , H02J50/005 , H02J50/40
Abstract: A wireless power transmission apparatus including a controller configured to perform a negotiation for a first available power indicator with a wireless power reception apparatus; and a power converter configured to transmit a wireless power to the wireless power reception apparatus according to the first available power indicator. The controller transmits, to the wireless power reception apparatus in response to a received power packet, a bit pattern response requesting a communication by the wireless power transmission apparatus to change the first available power indicator, and transmits a packet related to a second available power indicator to the wireless power reception apparatus. Further, the bit pattern response is composed of 8 bits, and the bit pattern response is defined as a different pattern from a bit pattern for an 8-bit ACK response, an 8-bit NAK response and an 8-bit ND response.
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公开(公告)号：US11664852B2
公开(公告)日：2023-05-30
申请号：US17853137
申请日：2022-06-29
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Jaeyeol Kim , Joonho Park , Jeongkyo Seo , Gyunghwan Yook , Jaesung Lee
IPC: H02J50/80 , H02J7/00 , G06F21/44 , H04W52/22 , H04W52/28 , H04W52/34 , H04B5/00 , H02J50/00 , H02J50/40 , H02J50/50 , H02J50/10 , H02J50/12 , H02J50/60
CPC classification number: H04B5/0037 , G06F21/445 , H02J7/00034 , H02J7/00045 , H02J50/80 , H04W52/223 , H04W52/286 , H04W52/34 , H02J7/00032 , H02J50/005 , H02J50/10 , H02J50/12 , H02J50/40 , H02J50/50 , H02J50/60
Abstract: A wireless power receiver includes a power pickup configured to receive a wireless power from a wireless power transmitter, and a communicator/controller configured to control the wireless power. The wireless power receiver transmits, to the wireless power transmitter during a configuration phase, a configuration packet including an AI flag related to whether the wireless power receiver supports an authentication function, receives, from the wireless power transmitter during a negotiation phase, a capability packet including an AR flag and a potential power value of the wireless power transmitter, wherein the AR flag is related to whether the wireless power transmitter supports the authentication function, and performs a power transfer phase with the wireless power transmitter. The wireless power receiver transmits, to the wireless power transmitter during the power transfer phase, an authentication request message, and receives, from the wireless power transmitter during the power transfer phase, an authentication response message.
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118.发明授权公开(公告)号：US11664688B2
公开(公告)日：2023-05-30
申请号：US17449884
申请日：2021-10-04
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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119.发明授权公开(公告)号：US11595083B2
公开(公告)日：2023-02-28
申请号：US16995558
申请日：2020-08-17
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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公开(公告)号：US20230048919A1
公开(公告)日：2023-02-16
申请号：US17793834
申请日：2021-01-22
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park
Abstract: A wireless power transmission apparatus according to an embodiment of the present specification transmits wireless power to a wireless power reception apparatus and comprises: a power conversion circuit that transmits the wireless power to the wireless power reception apparatus; and a communication/control circuit that communicates with the wireless power reception apparatus and controls the wireless power. In a power transfer phase for transmitting the wireless power to the wireless power reception apparatus, the communication/control circuit may receive, from the wireless power reception apparatus, a data packet including information about a slot time for performing foreign object detection and perform the foreign object detection during the slot time.
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