公开(公告)号：US10805888B2

公开(公告)日：2020-10-13

申请号：US16857895

申请日：2020-04-24

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park ,  Jaeyeol Kim ,  Joonho Park ,  Jeongkyo Seo ,  Gyunghwan Yook ,  Jaesung Lee

IPC: H04W52/28 ,  H04W52/22 ,  H04W52/34

Abstract: A method for performing authentication of a target device in a wireless power transmission system, includes receiving, from the target device, a first packet including indication information related to whether or not the target device supports an authentication function; in case the target device supports the authentication function, transmitting an authentication request message to the target device; and receiving, from the target device, an authentication response message including a certificate related to wireless charging as a response to the authentication request message, wherein a format of the certificate includes a certificate type that informs whether the certificate is one of a plurality of certificates including a root certificate, an intermediate certificate and a final certificate for a wireless power transmitter (PTX).

公开(公告)号：US10547209B2

公开(公告)日：2020-01-28

申请号：US15312550

申请日：2015-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park ,  Hyunbeom Lee

IPC: H02J50/80 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90

Abstract: The present disclosure relates to a wireless power transmitter for performing communication with a wireless power receiver using a plurality of slots, and the wireless power transmitter may include a power conversion unit configured to transmit a wireless power signal to the wireless power receiver, and a power transmission control unit configured to perform communication with the wireless power receiver using the wireless power signal, wherein the power transmission control unit performs steps including receiving control information from the wireless power receiver within any one of the plurality of slots, transmitting an ACK signal to the wireless power receiver in response to the control information, and allocating the any one slot to the wireless power receiver to perform communication with the wireless power receiver using the any one slot when the ACK signal is received.

公开(公告)号：US10135498B2

公开(公告)日：2018-11-20

申请号：US14897402

申请日：2014-06-16

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol Park ,  Hyunbeom Lee

IPC: H02J5/00 ,  H04B5/00

Abstract: The present disclosure relates to a wireless power transmission method, a wireless power transmission apparatus, and a wireless charging system in a wireless power transmission field, and there is provided a communication method of a wireless power transmitter capable of the transmission of power in a wireless manner, and the communication method may include receiving communication information indicating whether or not a second communication mode is available using a first communication mode from a wireless power receiver, determining whether or not communication in a second communication mode is available using the communication information, notifying either one of the first communication mode and second communication mode to the wireless power receiver based on the determination result, and performing communication with the wireless power receiver using a communication mode notified to the wireless power receiver.