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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
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.
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公开(公告)号：US12081042B2
公开(公告)日：2024-09-03
申请号：US17799813
申请日：2021-02-17
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Gyunghwan Yook , Jinho Youn
CPC classification number: H02J50/80 , H04L69/24 , H02J50/10 , H02J50/402
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.
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公开(公告)号：US20220123604A1
公开(公告)日：2022-04-21
申请号：US17567741
申请日：2022-01-03
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Gyunghwan Yook
Abstract: A wireless power transmission apparatus including a controller configured to perform a negotiation for a first available power indicator with a wireless power reception apparatus; and a power converter configured to transmit a wireless power to the wireless power reception apparatus according to the first available power indicator. The controller transmits, to the wireless power reception apparatus in response to a received power packet, a bit pattern response requesting a communication by the wireless power transmission apparatus to change the first available power indicator, and transmits a packet related to a second available power indicator to the wireless power reception apparatus. Further, the bit pattern response is composed of 8 bits, and the bit pattern response is defined as a different pattern from a bit pattern for an 8-bit ACK response, an 8-bit NAK response and an 8-bit ND response.
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4.发明授权公开(公告)号：US11114898B2
公开(公告)日：2021-09-07
申请号：US16979821
申请日：2019-03-07
Applicant: LG Electronics Inc.
Inventor： Yongcheol Park , Gyunghwan Yook
Abstract: The present invention relates to a device and method for supporting improved communication speed in a wireless power transmission system. The present specification provides a method comprising the steps of: generating wireless power at an operating frequency; configuring n, as the number of cycles per bit, which is used for transmitting one bit at the operating frequency; aligning each bit of the data with the n cycles; causing the operating frequency to transition between differential biphases according to the value of said each bit during the n cycles; and transmitting the wireless power to a wireless power receiving device on the basis of magnetic coupling at the transitioning operating frequency.
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公开(公告)号：US12244365B2
公开(公告)日：2025-03-04
申请号：US18138443
申请日：2023-04-24
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Jaeyeol Kim , Joonho Park , Jeongkyo Seo , Gyunghwan Yook , Jaesung Lee
IPC: H02J50/80 , G06F21/44 , H02J7/00 , H04B5/79 , H04W52/22 , H04W52/28 , H04W52/34 , H02J50/00 , H02J50/10 , H02J50/12 , H02J50/40 , H02J50/50 , H02J50/60
Abstract: A method in a wireless power transfer system can include, in response to a digital ping initiated by a wireless power transmitter, transmitting to the wireless power transmitter during a ping phase, a response signal. The method can further include transmitting, to the wireless power transmitter during a configuration phase, a configuration packet including first control information related to whether a wireless power receiver supports an authentication function to authenticate the wireless power transmitter; receiving, from the wireless power transmitter during a negotiation phase, a capability packet including second control information and a potential power value of the wireless power transmitter; and transmitting, to the wireless power transmitter during a power transfer phase, an authentication request message.
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Patent Agency Ranking
公开(公告)号：US12074448B2
公开(公告)日：2024-08-27
申请号：US18304677
申请日：2023-04-21
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Gyunghwan Yook
CPC classification number: H02J50/10 , H02J50/12 , H02J50/80 , H02J7/00032 , H02J50/005 , H02J50/40
Abstract: A wireless power transmission apparatus including a controller configured to initiate a digital ping to solicit a response from a wireless power reception apparatus, perform a negotiation for a first available power indicator with the wireless power reception apparatus; and a power converter configured to transmit a wireless power to the wireless power reception apparatus according to the first available power indicator, wherein the controller is configured to transmit, to the wireless power reception apparatus in response to a received power packet, a bit pattern response requesting a communication by the wireless power transmission apparatus to change the first available power indicator, and transmit a packet related to a second available power indicator to the wireless power reception apparatus, and wherein the bit pattern response is defined as a pattern different from a bit pattern for an 8-bit ACK response, a bit pattern for an 8-bit NAK response and a bit pattern for an 8-bit ND response.
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公开(公告)号：US11736146B2
公开(公告)日：2023-08-22
申请号：US17346724
申请日：2021-06-14
Applicant: LG Electronics Inc.
Inventor： Yongcheol Park , Gyunghwan Yook , Seonghun Lee
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.
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公开(公告)号：US20230261523A1
公开(公告)日：2023-08-17
申请号：US18015823
申请日：2021-07-13
Applicant: LG ELECTRONICS INC.
Inventor： Jinho Youn , Minsoo Lee , Gyunghwan Yook , Jingu Choi , Yongcheol Park
Abstract: A wireless power receiver, according to one embodiment of the present specification, communicates with a wireless power transmitter by using at least one of in-band communication and out-band communication, transmits, to the wireless power transmitter, on the basis that the wireless power transmitter indicates supporting the out-band communication, a first address packet comprising information related to a connection address of the wireless power receiver, for connection of the out-band communication, and receives, from the wireless power transmitter, a second address packet comprising information related to a connection address of the wireless power transmitter, for connection of the out-band communication.
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9.发明授权公开(公告)号：US11569692B2
公开(公告)日：2023-01-31
申请号：US17684905
申请日：2022-03-02
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan Kim , Yongcheol Park , Jihyun Lee , Gyunghwan Yook
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.
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公开(公告)号：US20210143687A1
公开(公告)日：2021-05-13
申请号：US16492532
申请日：2018-08-24
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol Park , Gyunghwan Yook
Abstract: The present invention relates to an apparatus and a method for performing communication in a wireless power transmission system. The present specification discloses a wireless power transmission apparatus comprising: a communication/control unit configured to perform negotiation on a first available power index with a wireless power reception apparatus; and a power conversion unit configured to create magnetic coupling of a primary coil according to the first available power index, and transmit power wirelessly to the wireless power reception apparatus. The wireless power transmission apparatus can properly adjust an available power index in a dynamic manner at a time point desired by itself according to a surrounding environment/situation, and leadingly initiate communication and authentication.
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