公开(公告)号：US20230344280A1

公开(公告)日：2023-10-26

申请号：US18005794

申请日：2021-07-15

Applicant: LG ELECTRONICS INC.

Inventor： Jingu CHOI ,  Gyunghwan YOOK ,  Yongcheol PARK ,  Minsoo LEE ,  Jinho YOUN

IPC: H02J50/80 ,  H02J50/60 ,  H02J50/90 ,  H02J50/12 ,  H02J13/00

CPC classification number: H02J50/80 ,  H02J50/60 ,  H02J50/90 ,  H02J50/12 ,  H02J13/00026

Abstract: A wireless power transmitter according to an embodiment of the present specification comprises: a power converter comprising a primary coil magnetically coupled to a secondary coil of a wireless power receiver to transmit wireless power; and a controller for communicating with the wireless power receiver and controlling the wireless power transmission, wherein the controller receives first information relating to the secondary coil from the wireless power receiver, receives second information relating to the position information of the wireless power receiver from the wireless power receiver, and distinguishes a state in which a foreign material is present between the wireless power receiver and the wireless power transmitter, and a misalignment state of the primary coil and secondary coil, on the basis of the first information and second information.

公开(公告)号：US20230319562A1

公开(公告)日：2023-10-05

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: H04W12/069 ,  H02J50/80 ,  H04B5/00 ,  H04W12/50

CPC classification number: H04W12/069 ,  H02J50/80 ,  H04B5/0025 ,  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：US20230261528A1

公开(公告)日：2023-08-17

申请号：US18003964

申请日：2021-07-02

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Minsoo LEE ,  Jingu CHOI ,  Gyunghwan YOOK ,  Jinho YOUN

IPC: H02J50/80 ,  H04B5/00

CPC classification number: H02J50/80 ,  H04B5/0037 ,  H02J50/40

Abstract: A wireless power reception apparatus according to an embodiment of the present specification transmits wireless charging packets, which can be transmitted using in-band communication, using a Bluetooth packet used in Bluetooth communication, through the Bluetooth communication, wherein, in connection with first wireless charging packets among the wireless charging packets, multiple first wireless charging packets are included in one Bluetooth packet and then transmitted through the Bluetooth communication, and in connection with second wireless charging packets among the wireless charging packets, a single second wireless charging packet is included in one Bluetooth packet and then transmitted through the Bluetooth communication.

公开(公告)号：US20230187981A1

公开(公告)日：2023-06-15

申请号：US17999323

申请日：2021-05-20

Applicant: LG ELECTRONICS INC.

Inventor： Jingu CHOI ,  Yongcheol PARK ,  Minsoo LEE ,  Gyunghwan YOOK

IPC: H02J50/80 ,  H02J50/10

CPC classification number: H02J50/80 ,  H02J50/10

Abstract: A method by which a wireless power transmitter transmits wireless power, according to one embodiment of the present specification, comprises: a ping step of transmitting a digital ping, and receiving a response to the digital ping from a wireless power receiver; a configuration step of receiving, from the wireless power receiver, a configuration packet including information about whether the wireless power receiver supports an authentication function; and a power transmission step of transmitting wireless power to the wireless power receiver, wherein the power transmission step includes a low-power transmission step of transmitting low wireless power, an authentication step of authenticating the wireless power transmitter on the basis the supporting of the authentication function by the wireless power receiver, and a high-power transmission step of transmitting high wireless power on the basis of the successful authentication of the wireless power transmitter in the authentication step.

公开(公告)号：US20230084965A1

公开(公告)日：2023-03-16

申请号：US17986595

申请日：2022-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Joonho PARK ,  Jinkwon LIM ,  Jingu CHOI ,  Yongcheol PARK

IPC: H02J50/80 ,  H02J50/10 ,  H02J7/00

Abstract: The present specification relates to a device and method for supporting heterogeneous communication in a wireless power transfer system. The present specification discloses a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transfer device, wireless power generated on the basis of magnetic coupling in a power transfer phase; and a communication and control circuit configured to transmit, to the wireless power transfer device, a first random address packet including a random address of the wireless power reception device or receive, from the wireless power transfer device, a second random address packet including a random address of the wireless power transfer device via in-band communication. By performing a handover using a random address, cross reference can be prevented and security can be enhanced, and thus a BLE connection in a wireless charging system can be more safely performed.

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：US20220190646A1

公开(公告)日：2022-06-16

申请号：US17594430

申请日：2020-04-16

Applicant: LG ELECTRONICS INC.

Inventor： Joonho PARK ,  Minsoo LEE ,  Jinkwon LIM ,  Jingu CHOI

IPC: H02J50/12 ,  H01F38/14 ,  H02J50/80 ,  H02J50/40

Abstract: The present specification relates to a device and a method enabling in-band communication and out-band communication between a wireless power transmission device and a wireless power receiving device. The present specification discloses a wireless power transmission device, a wireless power transmission method, a wireless power receiving device, a wireless power receiving method and a wireless power transmission system, whereby the existence or not of an inter-device communication connection history is checked using whitelist information of an out-band communication module, and when corresponding to a reconnection, out-band communication is connected, and data exchange for wireless power transmission is carried out via the out-band communication.

公开(公告)号：US20220131422A1

公开(公告)日：2022-04-28

申请号：US17431253

申请日：2019-10-16

Applicant: LG Electronics Inc.

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

IPC: H02J50/80 ,  H02J50/12 ,  G08C17/04

Abstract: The present invention relates to a device and method for performing power allocation and out-band activation by using short-range communication in a wireless power transmission system. A wireless power receiver device may comprise: a power pick-up circuit configured to receive power wirelessly from a wireless power transmitter device including a plurality of primary coils by magnetic coupling to the wireless power transmitter device at an operating frequency and to convert an alternating current signal induced by the wireless power into a direct current signal; a communication/control circuit receiving the direct current signal supplied from the power pick-up circuit and including an in-band communication module which communicates with the wireless power transmitter device by using the operating frequency, and an out-band communication module which communicates with the wireless power transmitter device by using any frequency except for the operating frequency; and a load configured to receive the direct current signal supplied from the power pick-up circuit, wherein the communication/control circuit transmits a message informing of the start of power allocation negotiation, to other wireless power receiver devices by using the out-band communication module.

公开(公告)号：US20190215879A1

公开(公告)日：2019-07-11

申请号：US16332312

申请日：2017-09-11

Applicant: LG ELECTRONICS INC.

Inventor： Taeyoung SONG ,  Jingu CHOI ,  Younghwan KWON

IPC: H04W76/10 ,  H04W4/80 ,  H04W4/06 ,  G10L15/22 ,  G10L15/30 ,  H04W12/06

Abstract: Disclosed are a method and an apparatus for selecting and connecting a gateway by a user device by using Bluetooth low energy technology, and a voice recognition system including a first device, a first gateway, and a voice recognition server. The first device broadcasts a voice signal to a neighboring gateway, the voice signal is forwarded to the voice recognition server by neighboring gateways, and the voice recognition server transmits a connection request message to an optimal gateway by processing the voice signal. After authentication of the voice recognition server is performed, the optimal gateway receiving the connection request message and a user device are connected to each other.