公开(公告)号：US20240421640A1

公开(公告)日：2024-12-19

申请号：US18706317

申请日：2022-11-01

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jinho YOUN

IPC: H02J50/80 ,  H02J50/10 ,  H04B5/79 ,  H04W12/06

Abstract: Provided are: a wireless power transfer method performed in a wireless power transfer system by a wireless power transmitter; and a device using same. The method: performs first authentication with a wireless power receiver in a power transfer phase related to transferring the wireless power; receives authentication token information in the power transfer phase from the wireless power receiver after or during the first authentication; and performs second authentication with the wireless power receiver in a new negotiation phase on the basis of the authentication token information after leaving the power transfer phase.

公开(公告)号：US20240322613A1

公开(公告)日：2024-09-26

申请号：US18677490

申请日：2024-05-29

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Joonho PARK ,  Gyunghwan YOOK

IPC: H02J50/80 ,  H02J50/12 ,  H02J50/40

CPC classification number: H02J50/80 ,  H02J50/12 ,  H02J50/40

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.

公开(公告)号：US20240314854A1

公开(公告)日：2024-09-19

申请号：US18263635

申请日：2022-01-28

Applicant: LG ELECTRONICS INC.

Inventor： Minsoo LEE ,  Yongcheol PARK ,  Taewook KWON ,  Gyunghwan YOOK ,  Jinho YOUN

IPC: H04W76/10 ,  H02J50/12 ,  H02J50/80

CPC classification number: H04W76/10 ,  H02J50/12 ,  H02J50/80

Abstract: The present specification provides a method for transmitting an address relating to out-band communication performed by a wireless power receiver in a wireless power transmission system, and a device using same, the method characterized by: transmitting to a wireless power transmitter the address relating to the out-band communication of the wireless power receiver, by means of in-band communication established with the wireless power transmitter; exchanging information relating to scan with the wireless power transmitter prior to the establishment of the out-band communication; and establishing the out-band communication on the basis of the address relating to the out-band communication and the information relating to the scan, wherein the information relating to the scan comprises additional information relating to the wireless power receiver.

公开(公告)号：US20240243620A1

公开(公告)日：2024-07-18

申请号：US18576000

申请日：2022-07-04

Applicant: LG Electronics Inc.

Inventor： Yongcheol PARK

IPC: H02J50/80 ,  H02J50/12 ,  H04L5/00

CPC classification number: H02J50/80 ,  H02J50/12 ,  H04L5/0055

Abstract: A method for receiving wireless power is performed in a wireless power transmission system by a wireless power receiver supporting a magnetic power profile (MPP), and is characterized in that: an identification (ID) packet is transmitted to a wireless power transmitter, wherein the ID packet includes information notifying the presence of an extended ID (XID) packet; the XID packet is transmitted to the wireless power transmitter, wherein the XID packet includes information notifying that the wireless power receiver supports the MPP; and a configuration (CFG) packet is transmitted to the wireless power transmitter, wherein, on the basis that the wireless power receiver receives ACK having a bit pattern different from MPP ACK in response to the CFG packet, or is unable to receive a response to the CFG packet, the wireless power receiver receives the wireless power on the basis of a profile different from the MPP.

公开(公告)号：US20240097505A1

公开(公告)日：2024-03-21

申请号：US18274192

申请日：2022-01-26

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK

IPC: H02J50/80

CPC classification number: H02J50/80 ,  H02J50/12

Abstract: The present specification discloses a method and device for receiving expanded capability information, the method being executed by a wireless power receiver in a wireless power transmission system and comprising the steps of: entering a negotiation phase with a wireless power transmitter; and receiving the expanded capability information from the wireless power transmitter in the negotiation phase, wherein the expanded capability information includes information about at least one power delivery protocol supported by the wireless power transmitter.

公开(公告)号：US20240088724A1

公开(公告)日：2024-03-14

申请号：US18263068

申请日：2022-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinho YOUN ,  Gyunghwan YOOK ,  Yongcheol PARK ,  Jaeyeol KIM

IPC: H02J50/80 ,  H04B5/00

CPC classification number: H02J50/80 ,  H04B5/0037 ,  H02J50/40

Abstract: Provided in the present specification are a method by which a wireless power receiver transmits request information in a wireless power transmission system, and a device, the method comprising: transmitting request information to a wireless power transmitter, the request information including information related to the time during which authority with respect to communication between the wireless power receiver and the wireless power transmitter is changed from the wireless power receiver to the wireless power transmitter; and receiving, from the wireless power transmitter, information related to data during the time.

公开(公告)号：US20230246484A1

公开(公告)日：2023-08-03

申请号：US18007991

申请日：2021-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK

IPC: H02J50/10 ,  H02J50/40 ,  H02J50/80

CPC classification number: H02J50/10 ,  H02J50/40 ,  H02J50/80

Abstract: A wireless power receiver device according to one embodiment of the present application receives wireless power from a wireless power transmitter device, wherein the wireless power receiver device receives the wireless power on the basis of any one of a first power profile, a second power profile having a higher power than the first power profile, and a third power profile having a higher power than the second power profile, and the wireless power transmitter device transmits the wireless power on the basis of any one profile from among the first power profile, the second power profile, and the third power profile, wherein a first data packet including first profile information indicating that the wireless power receiver device supports the third power profile is transmitted to the wireless power transmitter device, and a second data packet including second profile information indicating that the wireless power transmitter device supports the third power profile is received from the wireless power transmitter device.

公开(公告)号：US20230246483A1

公开(公告)日：2023-08-03

申请号：US17927263

申请日：2021-05-24

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK

IPC: H02J50/10 ,  H02J50/40 ,  H02J50/90

CPC classification number: H02J50/10 ,  H02J50/40 ,  H02J50/90

Abstract: A wireless power transmission method by a wireless power transmission device according to an 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 reception device; a configuration step of receiving, from the wireless power reception device, a configuration packet including information on elements of an initial power transmission contract; a negotiation step of receiving, from the wireless power reception device, information on elements of an extended power transmission contract for updating the initial power transmission contract to the extended power transmission contract; and a power transmission step of transmitting wireless power to the wireless power reception device on the basis of the extended power transmission contract, wherein in the power transmission step, a request packet for requesting a specific packet is received from the wireless power reception device, and in response to the request packet, the specific packet is transmitted to the wireless power reception device.

公开(公告)号：US20220346032A1

公开(公告)日：2022-10-27

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: H04W52/28 ,  H04W52/22 ,  H04W52/34 ,  H02J50/80 ,  H02J7/00 ,  G06F21/44

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.

公开(公告)号：US20220190650A1

公开(公告)日：2022-06-16

申请号：US17684905

申请日：2022-03-02

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Yongcheol PARK ,  Jihyun LEE ,  Gyunghwan YOOK

IPC: H02J50/60 ,  H02J50/80 ,  H04B5/00 ,  H02J50/12

Abstract: Provided are an apparatus and method for performing foreign object detection in a wireless power transfer system. The present specification discloses a method comprising receiving a digital ping from the wireless power transmitter; transmitting an identification and configuration packets to the wireless power transmitter; transmitting a foreign object detection (FOD) state packet which indicates a reference Q factor of the wireless power receiver to the wireless power transmitter; and receiving wireless power through magnetic coupling from the wireless power transmitter based on the foreign object detection result of the wireless power transmitter using the reference Q factor. Irrespective of individual characteristics of a wireless power receiver, accuracy and reliability of detecting a foreign object may be improved.