公开(公告)号：US11916615B2

公开(公告)日：2024-02-27

申请号：US17310089

申请日：2019-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Jinkwon Lim ,  Jingu Choi ,  Joonho Park ,  Yongcheol Park

IPC: H04B5/00 ,  H02J50/80 ,  H02J50/10 ,  H04W36/00 ,  H02J7/00 ,  H02J7/02 ,  H02J50/40 ,  H02J50/60

CPC classification number: H04B5/0037 ,  H02J7/00045 ,  H02J7/02 ,  H02J50/10 ,  H02J50/80 ,  H04W36/03 ,  H02J50/40 ,  H02J50/60

Abstract: The present specification relates to a device and method for wirelessly transmitting power on the basis of the reestablishment of out-band communication. The present specification discloses a wireless power receiving device comprising a communication/control circuit configured to carry out the operations of: performing handover from in-band communication using operating frequencies to out-band communication using any frequencies except for the operating frequencies; transmitting power characteristic information to the wireless power transmitting device or receiving power characteristic information from the wireless power transmitting device through the out-band communication before entering a power transmission phase; and saving power state information determined during the power transmission phase. By defining an out-band communication reestablishment protocol for the wireless power transmitting device or wireless power receiving device, it is possible to improve the performance of wireless power transmission throughout-band communication reestablishment that is fast and efficient.

公开(公告)号：US11870271B2

公开(公告)日：2024-01-09

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 ,  H02J50/80 ,  H02J50/40 ,  G06F8/65

CPC classification number: H02J50/10 ,  G06F8/65 ,  H02J50/40 ,  H02J50/80

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.

公开(公告)号：US11469627B2

公开(公告)日：2022-10-11

申请号：US17310110

申请日：2019-10-02

Applicant: LG ELECTRONICS INC.

Inventor： Jingu Choi ,  Jinkwon Lim ,  Taeyoung Song ,  Yongcheol Park ,  Joonho Park

IPC: H02J50/00 ,  H02J50/80 ,  H02J50/12 ,  H02J50/40 ,  H02J7/02 ,  H04B5/00 ,  H02J50/60

Abstract: The present disclosure relates to a device and method for wireless power transfer to multiple devices using a multi-coil. The device disclosed in the specification comprises: a power pickup unit configured to receive wireless power from a wireless power transfer device having a plurality of primary coils at an operation frequency by magnetic coupling to the wireless power transfer device and convert an alternating current signal generated by the wireless power into a direct current signal; a communication/control unit including an in-band communication module configured to be supplied with the direct current signal from the power pickup unit and perform communication with the wireless power transfer device by using the operating frequency, and an out-band communication module configured to perform communication with the wireless power transfer device by using a frequency other than the operating frequency; and a load configured to be supplied with the direct current signal from the power pickup unit. In a one-to-multiple wireless power transfer system using a multi-coil, various applications of wireless power can be efficiently supported by defining configuration information, control information, management information, and procedures for the exchanges thereof as an out-band communication protocol.

公开(公告)号：US11445453B2

公开(公告)日：2022-09-13

申请号：US16972905

申请日：2019-06-07

Applicant: LG ELECTRONICS INC.

Inventor： Jingu Choi ,  Taeyoung Song ,  Minsoo Lee ,  Jinkwon Lim

IPC: H04W52/10 ,  H04W52/38 ,  H04W4/80 ,  H04W52/24 ,  H04W52/36

Abstract: The present disclosure relates to a method and apparatus for controlling a power by using the Bluetooth Low Energy technology performed by a control device. According to the present disclosure, the method and apparatus includes establishing a connection with a first device and a second device through Bluetooth Low Energy (BLE) and receiving, from the first device, a first request message for requesting a transmission power change of the first device.
In addition, the method and apparatus includes receiving, from the second device, a second request message for requesting a transmission power change of the second device and changing a transmission power of the control device to a specific transmission power value based on the first change value and the second change value.

公开(公告)号：US11367449B2

公开(公告)日：2022-06-21

申请号：US16637713

申请日：2018-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Taeyoung Song ,  Jingu Choi

IPC: G10L15/30 ,  H04W4/80 ,  G10L15/22

Abstract: The present invention relates to a method and an apparatus for calling a voice recognition service by using Bluetooth low energy (LE). In particular, a method performed by a first device may comprise the steps of: receiving a first request message requesting start of a voice recognition service, from a second device connected to the first device through Bluetooth communication, wherein the first request message is generated by generation of a first wake word pre-configured in the second device; executing a voice gateway connected to multiple voice managers in response to the first request message; and executing a voice recognition service between the second device and a first voice manager determined by the voice gateway among the multiple voice managers.

公开(公告)号：US11310649B2

公开(公告)日：2022-04-19

申请号：US16971296

申请日：2019-02-20

Applicant: LG ELECTRONICS INC.

Inventor： Youngjun Jo ,  Giwon Park ,  Hyunsik Yang ,  Jeonghwan Yoon ,  Taesung Lim ,  Jingu Choi

IPC: H04W4/00 ,  H04W8/00 ,  H04W4/23 ,  H04W4/80 ,  H04W84/12

Abstract: A method by which a first wireless device performs a wireless connection in a wireless LAN system, according to one embodiment, comprises the steps of: receiving an advertising packet from a second wireless device through a primary channel, wherein the advertising packet includes first information for specifying a Wi-Fi service for the advertising packet and second information linked to the existence of additional data, and the first information is set as a first value linked to a DPP procedure or a second value linked to a NAN procedure; establishing a BLE-based connection with the second wireless device in order to receive the additional data; transmitting, to a second wireless terminal, a request packet for requesting additional data; and receiving, from the second wireless device, a response packet, including the additional data, as a response to the request packet, wherein the additional data is associated with DPP bootstrap URI information of the second wireless device.

公开(公告)号：US10172169B2

公开(公告)日：2019-01-01

申请号：US15510974

申请日：2015-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Minsoo Lee ,  Younghwan Kwon ,  Jingu Choi ,  Jaeho Lee

IPC: H04W76/10 ,  H04W8/24 ,  H04W88/04 ,  H04W4/80 ,  H04L29/06 ,  H04W8/18 ,  H04W12/02

Abstract: Disclosed is a method for controlling connection between a first device and a second device using Bluetooth by a control device including obtaining a first device information related to the first device from the first device, obtaining a second device information related to the second device from the second device, transmitting a connection request message for requesting connection with the second device to the first device based on the first device information and the second device information, and receiving a first response message including a result of connection with the second device in response to the connection request message.

公开(公告)号：US10142767B2

公开(公告)日：2018-11-27

申请号：US15305820

申请日：2015-04-21

Applicant: LG ELECTRONICS INC.

Inventor： Younghwan Kwon ,  Minsoo Lee ,  Hyeonjae Lee ,  Jangwoong Park ,  Jingu Choi ,  Jaeho Lee

IPC: H04B7/00 ,  H04W4/00 ,  H04L1/00 ,  H04W4/80

Abstract: The present invention is related to a method and an apparatus for transmitting and receiving data by using Bluetooth LE. A method and an apparatus according to the present invention comprises transmitting a first request message for requesting data to a second device; receiving a first response message including data in response to the first request message; if size of the data is equal to the maximum data transmission size, transmitting a second request message for transmitting additional data; and receiving a second response message including the additional data in response to the second request message, wherein the first request message or the second request message includes at least one of ID information, index information, or index range information of the data; and the first response message or the second response message includes at least one of length information or ID information.

公开(公告)号：US12289599B2

公开(公告)日：2025-04-29

申请号：US18025161

申请日：2020-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Minsoo Lee ,  Jingu Choi ,  Gyunghwan Yook ,  Seunghyun Yoo ,  Yongcheol Park

IPC: H02J50/80 ,  H04B5/70 ,  H04W12/069 ,  H04W12/50 ,  H02J50/12

Abstract: A wireless power transmission apparatus for transmitting wireless power to a wireless power reception apparatus, according to an embodiment of the present specification: transmits wireless power to the wireless power reception apparatus by means of magnetic coupling to the wireless power reception apparatus at an operating frequency; communicates with the wireless power reception apparatus by using at least one of in-band communication using the operating frequency and out-band communication using BLUETOOTH® communication; performs an authentication step with the wireless power reception apparatus to increase the level of the wireless power being transmitted to the wireless power reception apparatus; and includes, in a BLUETOOTH® packet, an authentication message required in the authentication step, and transmits the included authentication message to the wireless power reception apparatus via the BLUETOOTH® communication.

公开(公告)号：US12113790B2

公开(公告)日：2024-10-08

申请号：US17626282

申请日：2020-07-13

Applicant: LG ELECTRONICS INC.

Inventor： Jaehyu Kim ,  Jingu Choi ,  Minsoo Lee ,  Jinkwon Lim

IPC: H04L9/40 ,  H02J50/10 ,  H02J50/40 ,  H02J50/80 ,  H04L9/32 ,  H04W12/06

CPC classification number: H04L63/0869 ,  H02J50/10 ,  H02J50/40 ,  H02J50/80 ,  H04L9/3247 ,  H04L9/3265 ,  H04L9/3297 ,  H04L63/102 ,  H04L63/123 ,  H04W12/06

Abstract: According to one embodiment of the present specification, a method for performing authentication between an authentication initiator and an authentication responder in a wireless power transmission system comprises the steps in which: the authentication initiator transmits an initiator certificate chain and an initiator signature to the authentication responder; the authentication initiator receives a responder certificate chain and a responder signature from the authentication responder who has authenticated the authentication initiator by verifying the initiator signature information; and the authentication initiator verifies the responder signature to authenticate the authentication responder.