公开(公告)号：US20250167831A1

公开(公告)日：2025-05-22

申请号：US19029890

申请日：2025-01-17

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jaeyeol KIM ,  Joonho PARK ,  Jeongkyo SEO ,  Gyunghwan YOOK ,  Jaesung LEE

IPC: H04B5/79 ,  G06F21/44 ,  H02J7/00 ,  H02J50/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/40 ,  H02J50/50 ,  H02J50/60 ,  H02J50/80 ,  H04W52/22 ,  H04W52/28 ,  H04W52/34

Abstract: A method in a wireless power transfer system can include transmitting, to a wireless power transmitter during a ping phase, a response signal in response to a digital ping initiated by the wireless power transmitter, and transmitting, to the wireless power transmitter during a configuration phase, a configuration packet including first control information related to whether the wireless power receiver supports an authentication function. Also, the method can further include receiving, from the wireless power transmitter during a negotiation phase, a capability packet including second control information and a potential power value of the wireless power transmitter, in which the second control information is related to whether the wireless power transmitter supports the authentication function, and receiving power from the wireless power transmitter.

公开(公告)号：US20240154466A1

公开(公告)日：2024-05-09

申请号：US18284201

申请日：2022-03-28

Applicant: LG Electronics Inc.

Inventor： Taewook KWON ,  Gyunghwan YOOK ,  Jinho YOUN ,  Hongkwon KIM ,  Yongcheol PARK

IPC: H02J50/60 ,  H02J50/10 ,  H02J50/80

CPC classification number: H02J50/60 ,  H02J50/10 ,  H02J50/80

Abstract: The present disclosure provides a method by which a wireless power transmitter transmits wireless power in a wireless power transmission system, and a device using same, the method comprising: receiving, from a wireless power receiver, information for sensing whether a foreign object (FO) is present; sensing, on the basis of the information, whether the FO is present before the transmission of wireless power; transmitting, on the basis of sensing that the FO is not present, the wireless power to the wireless power receiver and measuring a slot quality factor and a coupling factor on a slot while the wireless power is transmitted, wherein the slot quality factor is a quality factor used to determine whether the FO is inserted while the wireless power is transmitted, and the coupling factor is a factor related to the alignment between the wireless power transmitter and the wireless power receiver.

公开(公告)号：US20230261696A1

公开(公告)日：2023-08-17

申请号：US18138443

申请日：2023-04-24

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jaeyeol KIM ,  Joonho PARK ,  Jeongkyo SEO ,  Gyunghwan YOOK ,  Jaesung LEE

IPC: H04B5/00 ,  H02J50/80 ,  H02J7/00 ,  G06F21/44 ,  H04W52/22 ,  H04W52/28 ,  H04W52/34

CPC classification number: H04B5/0037 ,  H02J50/80 ,  H02J7/00045 ,  H02J7/00034 ,  G06F21/445 ,  H04W52/223 ,  H04W52/286 ,  H04W52/34 ,  H02J50/005

Abstract: A method in a wireless power transfer system can include, in response to a digital ping initiated by a wireless power transmitter, transmitting to the wireless power transmitter during a ping phase, a response signal. The method can further include transmitting, to the wireless power transmitter during a configuration phase, a configuration packet including first control information related to whether a wireless power receiver supports an authentication function to authenticate the wireless power transmitter; receiving, from the wireless power transmitter during a negotiation phase, a capability packet including second control information and a potential power value of the wireless power transmitter; and transmitting, to the wireless power transmitter during a power transfer phase, an authentication request message.

公开(公告)号：US20230044514A1

公开(公告)日：2023-02-09

申请号：US17790260

申请日：2019-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Seong Hun LEE ,  Gyunghwan YOOK ,  Hyoung Seok KIM ,  Hwanyong KIM

IPC: H02J50/00 ,  H02J50/10

Abstract: Discussed is a wireless charging device that changes a direction of a magnetic field generated by a transmission coil, through a repeater capable of rotating in a plane, and supports a user terminal in parallel with the repeater, to wirelessly transmit power in various directions and at various angles. The wireless charging device includes a power transmitting module including a plurality of transmission coils arranged side by side, therein, a terminal supporting module including a repeater therein and disposed at a slant with respect to an upper surface of the power transmitting module on the upper surface of the power transmitting module, a moving module to move the terminal supporting module along a direction in which the transmission coils are arranged, and a controller to supply a voltage to any one of the plurality of transmission coils depending on a position of the moving module.

公开(公告)号：US20230032749A1

公开(公告)日：2023-02-02

申请号：US17790266

申请日：2019-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Seong Hun LEE ,  Gyunghwan YOOK ,  Hyoung Seok KIM ,  Hwanyong KIM

IPC: H02J50/00 ,  H02J50/10 ,  H02J50/40 ,  H02J7/00

Abstract: Discussed is a wireless charging device which can change the direction of a magnetic field, generated in a transmission coil, through a vertically and horizontally rotatable repeater, and can hold a user terminal in parallel with the repeater, thereby transmitting wireless power in various directions and at various angles. The wireless charging device includes a case, a flat plate core disposed in the case, multiple transmission coils arranged parallel to each other on the flat plate core, a terminal holder including a repeater therein and disposed on the top surface of the case while sloping with respect to the top surface of the case, and a moving member for moving the terminal holder in the direction in which the plurality of transmission coils are arranged.

公开(公告)号：US20210408838A1

公开(公告)日：2021-12-30

申请号：US16494982

申请日：2018-05-02

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Jaeyeol KIM ,  Joonho PARK ,  Jeongkyo SEO ,  Gyunghwan YOOK ,  Jaesung LEE

IPC: H02J50/80 ,  H02J7/00 ,  G06F21/44

Abstract: The present invention relates to a device and a method for performing authentication in a wireless power transmission system. Disclosed in the present specification is an authentication method in a wireless power transmission system, comprising the steps of: receiving, from a target device, a first packet including indication information related to whether the target device supports an authentication function; transmitting an authentication request message to the target device if the target device supports the authentication function; receiving, from the target device, an authentication response message including a certificate for wireless charging in response to the authentication request message; and confirming the authentication of the target device on the basis of the authentication response message.

公开(公告)号：US20210306036A1

公开(公告)日：2021-09-30

申请号：US17346724

申请日：2021-06-14

Applicant: LG Electronics Inc.

Inventor： Yongcheol PARK ,  Gyunghwan YOOK ,  Seonghun LEE

IPC: H04B5/00 ,  H02J50/12 ,  H04W36/30

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.

公开(公告)号：US20200382166A1

公开(公告)日：2020-12-03

申请号：US16988367

申请日：2020-08-07

Applicant: LG Electronics Inc.

Inventor： Yongcheol PARK ,  Gyunghwan YOOK ,  Seonghun LEE

IPC: H04B5/00 ,  H02J50/12 ,  H04W36/30

Abstract: The present invention relates to a wireless power transmission system and, more particularly, to 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.

公开(公告)号：US20250125663A1

公开(公告)日：2025-04-17

申请号：US18987421

申请日：2024-12-19

Applicant: LG Electronics Inc.

Inventor： Hyoungseok KIM ,  Jaeyeol KIM ,  Seonghun LEE ,  Gyunghwan YOOK ,  Hongkwon KIM

IPC: H02J50/60 ,  H02J50/10 ,  H02J50/80

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.

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

IPC: H02J50/12 ,  H02J50/20 ,  H02J50/80 ,  H04W4/80

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.