公开(公告)号：US20240088713A1

公开(公告)日：2024-03-14

申请号：US18272998

申请日：2022-01-25

Applicant: LG ELECTRONICS INC.

Inventor： Jinho YOUN ,  Gyunghwan YOOK ,  Yongcheol PARK

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

CPC classification number: H02J50/10 ,  H02J50/402 ,  H02J50/80

Abstract: The present specification provides a method by which a wireless power receiver transmits support information in a wireless power transmission system, and a device, the method comprising: entering a configuration phase with a wireless power transmitter; and transmitting support information to the wireless power transmitter in the configuration phase, wherein the support information includes information related to a power transfer protocol supported by means of the wireless power receiver.

公开(公告)号：US20230344466A1

公开(公告)日：2023-10-26

申请号：US18217137

申请日：2023-06-30

Applicant: LG Electronics Inc.

Inventor： Yongcheol PARK ,  Gyunghwan YOOK ,  Seonghun LEE

IPC: H04W36/30 ,  H02J50/12 ,  H04B5/00

CPC classification number: H04B5/0037 ,  H02J50/12 ,  H04W36/30 ,  H02J50/40

Abstract: 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：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：US20230078771A1

公开(公告)日：2023-03-16

申请号：US17799813

申请日：2021-02-17

Applicant: LG ELECTRONICS INC.

Inventor： Yongcheol PARK ,  Gyunghwan YOOK ,  Jinho YOUN

IPC: H02J50/80 ,  H04L69/24

Abstract: A wireless power reception device according to an embodiment of the present document comprises: a power pickup circuit which receives wireless power from a wireless power transmission device; and a communication/control circuit which communicates with the wireless power transmission device and controls the wireless power, wherein the communication/control circuit may transmit and receive application-level messages with the wireless power transmission device by using a data transport stream including an auxiliary data control (ADC) packet and a plurality of continuous auxiliary data transmission (ADT) packets, and transmits a data packet including information about the maximum size of the ADT packet to the wireless power transmission device.

公开(公告)号：US20200328629A1

公开(公告)日：2020-10-15

申请号：US16915836

申请日：2020-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Kyunghwan KIM ,  Yongcheol PARK ,  Jihyun LEE ,  Gyunghwan YOOK

IPC: H02J50/60 ,  H02J50/80 ,  H04B5/00 ,  H02J50/12

Abstract: Provided are an apparatus and method for performing foreign object detection in a wireless power transfer system. The present specification discloses a method comprising receiving a digital ping from the wireless power transmitter; transmitting an identification and configuration packets to the wireless power transmitter; transmitting a foreign object detection (FOD) state packet which indicates a reference Q factor of the wireless power receiver to the wireless power transmitter; and receiving wireless power through magnetic coupling from the wireless power transmitter based on the foreign object detection result of the wireless power transmitter using the reference Q factor. Irrespective of individual characteristics of a wireless power receiver, accuracy and reliability of detecting a foreign object may be improved.

公开(公告)号：US20200252886A1

公开(公告)日：2020-08-06

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 ,  H04W52/34 ,  H04W52/22

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：US20200244108A1

公开(公告)日：2020-07-30

申请号：US16627200

申请日：2018-06-28

Applicant: LG Electronics Inc.

Inventor： Sungkyu KIM ,  Jeongkyo SEO ,  Jinmoo PARK ,  Seonghun LEE ,  Bongsik KWAK ,  Jaesung LEE ,  Jihyun LEE ,  Gyunghwan YOOK ,  Joonho PARK ,  Youngchan CHO

IPC: H02J50/40 ,  H02J50/12 ,  H02J50/80 ,  H01F38/14 ,  H02J7/02 ,  H02J50/60 ,  H02J50/90 ,  H04B5/00

Abstract: The present invention relates to a multi-coil based wireless power transmission device and method. Disclosed in the present specification is a wireless power transmission device comprising: a primary coil array forming a magnetic coupling with a secondary coil, which is provided in a wireless power reception device, so as to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one so as to selectively drive each of the plurality of primary coils; a communication and control unit, which controls the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven on the basis of the degree of magnetic coupling formed by each primary coil and the secondary coil, thereby determining output, which can be provided by the primary coil array, within a value obtained by summing all the maximum outputs individually set to the respective primary coils. In an intermediate power level wireless power transmission system, a non-chargeable state due to coil misalignment can be compensated for on the basis of multi-coils, an extended design of a charging area at low cost is simple, and the degree of freedom of the position or the alignment of a reception device can be increased.