公开(公告)号：US20220278561A1

公开(公告)日：2022-09-01

申请号：US17597500

申请日：2020-05-15

Applicant: LG ELECTRONICS INC.

Inventor： Jingu CHOI ,  Jinkwon LIM ,  Minsoo LEE ,  Joonho PARK ,  Jaehyu KIM ,  Yongcheol PARK

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

Abstract: A wireless power transmission device according to an embodiment of the present specification comprises: a power conversion circuit for transmitting wireless power to a wireless power reception device by means of magnetic coupling with the wireless power reception device at an operating frequency; and a communication/control circuit for communicating with the wireless power reception device by using in-band communication that uses the operating frequency and/or out-band communication that uses a frequency other than the operating frequency, and for communicating with at least one other wireless power transmission device by using the out-band communication, wherein the communication/control circuit measures the distance to the wireless power reception device and transmits the information about the measured first distance to the other wireless power transmission device.

公开(公告)号：US20220277285A1

公开(公告)日：2022-09-01

申请号：US17597504

申请日：2020-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Jinkwon LIM ,  Minsoo LEE ,  Jingu CHOI ,  Joonho PARK ,  Jaehyu KIM ,  Yongcheol PARK

IPC: G06Q20/32 ,  H02J50/12 ,  H02J50/60

Abstract: According to an aspect of the present invention, a wireless power reception device includes: a power pick-up circuit which is configured to form magnetic coupling with a wireless power transmission device and receive wireless power from the wireless power transmission device; and a communication/control circuit which is configured to perform at least one among control of the transmission of the wireless power and data transmission and reception on the basis of communication with the wireless power transmission device, wherein the communication/control circuit can receive a check message for checking payment information from the wireless power transmission device and perform a payment procedure for wireless power transmission, and can provide a user interface related to information for the payment procedure.

公开(公告)号：US20240356386A1

公开(公告)日：2024-10-24

申请号：US18761129

申请日：2024-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Jingu CHOI ,  Minsoo LEE ,  Hongwon LEE ,  Jinkwon LIM ,  Jaehyu KIM ,  Yongcheol PARK

IPC: H02J50/80 ,  H02J50/12 ,  H02J50/40 ,  H04L27/12

CPC classification number: H02J50/80 ,  H02J50/12 ,  H02J50/40 ,  H04L27/12

Abstract: A device for transmission of wireless power according to an embodiment of the present specification comprises: a power conversion circuit for transmitting the wireless power to a wireless power receiving device; and a communication/control circuit for communicating with the wireless power receiving device and controlling the wireless power, wherein the communication/control circuit transmits a response to a reception data packet received from the wireless power receiving device or a transmission data packet transmitted to the wireless power receiving device on the basis of a timeout period, and the timeout period is changed according to a communication speed between the communication/control circuit and the wireless power receiving device.

公开(公告)号：US20240030753A1

公开(公告)日：2024-01-25

申请号：US17310168

申请日：2019-10-16

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyu KIM ,  Jingu CHOI ,  Minsoo LEE ,  Jinkwon LIM

IPC: H02J50/80 ,  H02J50/12 ,  H04W4/80 ,  H04W12/06

CPC classification number: H02J50/80 ,  H02J50/12 ,  H04W4/80 ,  H04W12/06

Abstract: The present disclosure relates to a device and a method for performing wireless power transmission on the basis of authentication. A wireless power receiver according to the present specification comprises a communication/control circuit for performing an authentication procedure on the basis of out-band communication, wherein the out-band communication is Bluetooth low energy (BLE) communication, and the communication/control circuit performs the authentication procedure on the basis of a logical link control and adaptation protocol (L2CAP) or a generic attribute profile (GATT) of the BLE communication. The present disclosure defines an authentication procedure or authentication messages of a wireless transmission device or a wireless reception device by using an out-band communication protocol, and thus can support various applications of wireless power.

公开(公告)号：US20230134962A1

公开(公告)日：2023-05-04

申请号：US17432322

申请日：2019-07-30

Applicant: LG Electronics Inc.

Inventor： Jinkwon LIM ,  Jaehyu KIM ,  Yongcheol PARK ,  Joonho PARK ,  Taeyoung SONG ,  Jingu CHOI

IPC: H02J50/80 ,  H02J50/12 ,  H04W36/08 ,  G06F3/14

Abstract: The present invention relates to an apparatus and a method for providing charging status information in a wireless power transmission system. Disclosed in the present specification is a wireless power reception device comprising: a power pickup unit configured to receive wireless power from a wireless power transmission device by means of magnetic coupling with the wireless power transmission device at an operational frequency and convert an alternating current signal generated by the wireless power into a direct current signal; a battery configured to receive the direct current signal from the power pickup unit; and a communication/control unit configured to receive the direct current signal from the power pickup unit, perform a handover procedure from in-band communication using the operational frequency to out-band communication using a frequency other than the operational frequency, perform a procedure for selecting a priority display device on which charging status information about the battery is to be displayed through the out-band communication with the wireless power transmission device, and generate the charging status information. A user can conveniently and efficiently check charging status information about a device being charged.

公开(公告)号：US20220239347A1

公开(公告)日：2022-07-28

申请号：US17616535

申请日：2020-01-30

Applicant: LG Electronics Inc.

Inventor： Jingu CHOI ,  Jinkwon LIM ,  Minsoo LEE ,  Joonho PARK ,  Jaehyu KIM ,  Yongcheol PARK

IPC: H04B5/00 ,  H02J50/40 ,  H02J50/10 ,  H02J50/80

Abstract: The present invention relates to an access control method and device in a wireless power transmission system. A wireless power transmission device comprises: a power conversion circuit configured to have a plurality of primary coils and transmit wireless power to a wireless power reception device by using the primary coil which has formed magnetic coupling to the wireless power reception device at an operating frequency; and a communication/control circuit configured to perform in-band communication with the wireless power reception device by using the operating frequency and perform out-band communication with the wireless power reception device by using a frequency other than the operating frequency, wherein the communication/control circuit can transmit information for notifying whether or not connection to the wireless power reception device is possible by using the out-band communication.

公开(公告)号：US20220123590A1

公开(公告)日：2022-04-21

申请号：US17310829

申请日：2020-01-29

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyu KIM ,  Jingu CHOI ,  Minsoo LEE ,  Jinkwon LIM

IPC: H02J50/10 ,  G06F8/65 ,  H02J50/80 ,  H02J50/40

Abstract: The present specification relates to a wireless power transmission apparatus and a wireless power reception apparatus, which can transmit and update firmware of the wireless power transmission apparatus through out-band communication between the wireless power transmission apparatus and the wireless power reception apparatus, and to firmware updating of the wireless power transmission apparatus using out-band communication.