公开(公告)号：US11063636B2

公开(公告)日：2021-07-13

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 ,  H02J50/40

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：US11031825B2

公开(公告)日：2021-06-08

申请号：US16475281

申请日：2018-01-02

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan Kim ,  Jeongkyo Seo ,  Jinho Youn ,  Seonghun Lee

IPC: H02J50/60 ,  H02J50/90 ,  H02J50/30 ,  G01V8/14 ,  G02B27/14 ,  H02J7/02

Abstract: Disclosed in the present specification are a wireless power transmission apparatus, and a method therefor. The wireless power transmission apparatus (Tx) according to one embodiment of the present invention comprises: a laser light source unit; a light output unit for outputting, for wireless charging, laser light generated by the laser light source unit to a light receiving unit of a wireless power receiving apparatus; a foreign object (FO) sensing unit for sensing an FO by utilizing supplementary light; and a control unit for controlling the laser light output when an FO is sensed by the FO sensing unit.

公开(公告)号：US10340741B2

公开(公告)日：2019-07-02

申请号：US15381402

申请日：2016-12-16

Applicant: LG ELECTRONICS INC.

Inventor： Seonghun Lee ,  Byungsang Jung ,  Hwanyong Kim ,  Seungje Park ,  Sangdoo Ha ,  Yongjun Son ,  Seonwook Park ,  Jaesung Yang ,  Wonbok Lee ,  Gyoocheol Choi ,  Joonggil Jeong

IPC: F25D11/00 ,  F25D25/02 ,  F25D27/00 ,  F25D29/00 ,  H01F27/28 ,  H01F27/36 ,  H01F38/14 ,  H02J50/12

Abstract: Disclosed is a refrigerator for uniformly illuminating an inner space thereof. The refrigerator includes a cabinet including a storage compartment having a predetermined size, a shelf installed in the storage compartment, the shelf including a light source unit for illuminating an inside of the storage compartment, a transmitter connected to an external power supply for wirelessly transmitting power, the transmitter having a primary resonance frequency within a predetermined range, and a receiver for wirelessly receiving the power from the transmitter so as to supply the power to the light source unit of the shelf, the transmitter transmitting the power to the receiver using a secondary resonance frequency generated when the receiver is located close to the transmitter.

公开(公告)号：US12218524B2

公开(公告)日：2025-02-04

申请号：US18024675

申请日：2021-09-06

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：US12161892B2

公开(公告)日：2024-12-10

申请号：US17245534

申请日：2021-04-30

Applicant: LG Electronics Inc.

Inventor： Hyengcheul Choi ,  Jinmoo Park ,  Seonghun Lee ,  Junchan Kwon ,  Taewook Kwon ,  Minsoo Kim

IPC: A62B18/00 ,  A62B7/10 ,  A62B18/02 ,  A62B18/08 ,  A62B23/02

Abstract: A mask apparatus includes a mask body having a fan module, a seal defining a breathing space, a pressure sensor sensing air pressure in the breathing space, a mask body cover coupled to the mask body, and a controller that controls a rotation speed of the fan module based on pressure values. The controller is configured to determine breathing information including a maximum pressure value and time point, and a minimum pressure value and time point, determine a breathing state of a user based on the breathing information, determine whether the breathing state is a steady state, determine a tidal volume of the user based on the breathing information, and control the rotation speed of the fan module based on the tidal volume.

公开(公告)号：US12132331B2

公开(公告)日：2024-10-29

申请号：US18025634

申请日：2021-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan Kim ,  Seonghun Lee

IPC: H02J50/70 ,  H02J50/12 ,  H02J50/40

CPC classification number: H02J50/70 ,  H02J50/12 ,  H02J50/402

Abstract: A wireless power transmission apparatus comprises: a plurality of transmission coils configured to transmit a wireless power to a wireless power reception apparatus; a shielding coil which is arranged on at least one surface of a dielectric substrate, and is configured in a loop shape having at least two turns so as to surround the plurality of transmission coils; and a capacitor configured to connect one point to the other point of the shielding coil. The plurality of transmission coils are arranged inside the shielding coil disposed on the dielectric substrate, and the direction of a magnetic field formed at one side and the other side of the plurality of transmission coils adjacent to the shielding coil is formed to be opposite to the direction of a magnetic field formed around the shielding coil so that the shielding coil shields external exposure of electromagnetic waves by the plurality of transmission coils.

公开(公告)号：US12089668B2

公开(公告)日：2024-09-17

申请号：US17846544

申请日：2022-06-22

Applicant: LG ELECTRONICS INC.

Inventor： Minsoo Kim ,  Jinmoo Park ,  Seonghun Lee ,  Junchan Kwon ,  Sooyong Park

IPC: A41D13/11 ,  A41D1/00 ,  H04R1/02 ,  H04R1/08

CPC classification number: A41D13/11 ,  A41D1/002 ,  H04R1/025 ,  H04R1/08 ,  H04R2201/02

Abstract: Provided is a mask apparatus. The mask apparatus includes a mask body in which a microphone and a speaker are installed, a face guard coupled to a rear surface of the rear body so as to be in close contact with a user's face and having a breathing space therein, a pressure sensor installed in the mask body to measure a pressure of the breathing space, and a controller configured to compare a current pressure value measured by the pressure sensor to a reference pressure value and control a voice output of the speaker based on a difference between the current pressure value and the reference pressure value.

公开(公告)号：US11817717B2

公开(公告)日：2023-11-14

申请号：US17593261

申请日：2020-03-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyengcheul Choi ,  Bongsik Kwak ,  Hyunggeol Kwak ,  Sungkyu Kim ,  Jonggu Kim ,  Jinhong Kim ,  Sooyong Park ,  Yongcheol Park ,  Joonho Park ,  Seonghun Lee

IPC: H02J50/12 ,  H02J50/80 ,  H04B5/00 ,  H02J50/40 ,  H02J50/10

CPC classification number: H02J50/12 ,  H02J50/10 ,  H02J50/40 ,  H02J50/80 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0081

Abstract: The present specification relates to a wireless power receiving device, receiving method, and receiving system, the device comprising individual rectifiers for each receiving coil, wherein the individual rectifiers comprise isolators for isolating a receiving coil for PC0 from a receiving coil for PC1.

公开(公告)号：US11770029B2

公开(公告)日：2023-09-26

申请号：US17282654

申请日：2019-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Joonho Park ,  Bongsik Kwak ,  Sungkyu Kim ,  Seonghun Lee ,  Jihyun Lee

IPC: H02J50/40 ,  H02J50/80 ,  H02J50/10 ,  H02J50/60 ,  H04B5/00

CPC classification number: H02J50/402 ,  H02J50/10 ,  H02J50/60 ,  H02J50/80 ,  H04B5/0087

Abstract: The present disclosure relates to a wireless power transmission device. A wireless power transmission device according to an embodiment of the present disclosure includes: a coil part including a plurality of partially overlapping coils; a coil combination generator configured to generate coil combinations including at least one of the plurality of coils; and a controller configured to transmit a coil selection signal through the coil combinations and to select an operating coil combination from the coil combinations based on a response intensity of a response signal for the coil selection signal and charging efficiency of a wireless power reception device. Accordingly, a high-efficiency charging area can be extended in partially overlapping multiple coils.

公开(公告)号：US11637648B2

公开(公告)日：2023-04-25

申请号：US17272768

申请日：2019-09-03

Applicant: LG ELECTRONICS INC.

Inventor： Jaeyeol Kim ,  Hyoungseok Kim ,  Yongcheol Park ,  Dohyeon Son ,  Jinho Youn ,  Seonghun Lee

IPC: H04L1/00 ,  H02J50/80 ,  H02J50/40 ,  H04L69/24 ,  H02J50/12 ,  H02J7/02 ,  H04L1/20

Abstract: The present disclosure relates to an apparatus and a method for supporting an improved communication speed in a wireless power transmission system. In such present specification, provided is the method comprising the steps of: transmitting at least one data packet to a wireless power reception apparatus; receiving, from the wireless power reception apparatus, a first request packet requesting a change in a communication speed of the wireless power transmission apparatus; and changing the communication speed of the wireless power transmission apparatus on the basis of the first request packet, and transmitting, at the changed communication speed, a first response packet in response to the first request packet to the wireless power reception apparatus.