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公开(公告)号：US20240154466A1
公开(公告)日：2024-05-09
申请号：US18284201
申请日：2022-03-28
Applicant: LG Electronics Inc.
Inventor： Taewook KWON , Gyunghwan YOOK , Jinho YOUN , Hongkwon KIM , Yongcheol PARK
Abstract: The present disclosure provides a method by which a wireless power transmitter transmits wireless power in a wireless power transmission system, and a device using same, the method comprising: receiving, from a wireless power receiver, information for sensing whether a foreign object (FO) is present; sensing, on the basis of the information, whether the FO is present before the transmission of wireless power; transmitting, on the basis of sensing that the FO is not present, the wireless power to the wireless power receiver and measuring a slot quality factor and a coupling factor on a slot while the wireless power is transmitted, wherein the slot quality factor is a quality factor used to determine whether the FO is inserted while the wireless power is transmitted, and the coupling factor is a factor related to the alignment between the wireless power transmitter and the wireless power receiver.
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公开(公告)号：US20230261696A1
公开(公告)日：2023-08-17
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
CPC classification number: H04B5/0037 , H02J50/80 , H02J7/00045 , H02J7/00034 , G06F21/445 , H04W52/223 , H04W52/286 , H04W52/34 , H02J50/005
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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公开(公告)号：US20230044514A1
公开(公告)日：2023-02-09
申请号：US17790260
申请日：2019-12-30
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan KIM , Seong Hun LEE , Gyunghwan YOOK , Hyoung Seok KIM , Hwanyong KIM
Abstract: Discussed is a wireless charging device that changes a direction of a magnetic field generated by a transmission coil, through a repeater capable of rotating in a plane, and supports a user terminal in parallel with the repeater, to wirelessly transmit power in various directions and at various angles. The wireless charging device includes a power transmitting module including a plurality of transmission coils arranged side by side, therein, a terminal supporting module including a repeater therein and disposed at a slant with respect to an upper surface of the power transmitting module on the upper surface of the power transmitting module, a moving module to move the terminal supporting module along a direction in which the transmission coils are arranged, and a controller to supply a voltage to any one of the plurality of transmission coils depending on a position of the moving module.
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公开(公告)号：US20230032749A1
公开(公告)日：2023-02-02
申请号：US17790266
申请日：2019-12-30
Applicant: LG ELECTRONICS INC.
Inventor： Kyunghwan KIM , Seong Hun LEE , Gyunghwan YOOK , Hyoung Seok KIM , Hwanyong KIM
Abstract: Discussed is a wireless charging device which can change the direction of a magnetic field, generated in a transmission coil, through a vertically and horizontally rotatable repeater, and can hold a user terminal in parallel with the repeater, thereby transmitting wireless power in various directions and at various angles. The wireless charging device includes a case, a flat plate core disposed in the case, multiple transmission coils arranged parallel to each other on the flat plate core, a terminal holder including a repeater therein and disposed on the top surface of the case while sloping with respect to the top surface of the case, and a moving member for moving the terminal holder in the direction in which the plurality of transmission coils are arranged.
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公开(公告)号：US20210408838A1
公开(公告)日：2021-12-30
申请号：US16494982
申请日：2018-05-02
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK , Jaeyeol KIM , Joonho PARK , Jeongkyo SEO , Gyunghwan YOOK , Jaesung LEE
Abstract: The present invention relates to a device and a method for performing authentication in a wireless power transmission system. Disclosed in the present specification is an authentication method in a wireless power transmission system, comprising the steps of: receiving, from a target device, a first packet including indication information related to whether the target device supports an authentication function; transmitting an authentication request message to the target device if the target device supports the authentication function; receiving, from the target device, an authentication response message including a certificate for wireless charging in response to the authentication request message; and confirming the authentication of the target device on the basis of the authentication response message.
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Patent Agency Ranking
公开(公告)号：US20210306036A1
公开(公告)日：2021-09-30
申请号：US17346724
申请日：2021-06-14
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK , Gyunghwan YOOK , Seonghun LEE
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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7.发明申请公开(公告)号：US20200382166A1
公开(公告)日：2020-12-03
申请号：US16988367
申请日：2020-08-07
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK , Gyunghwan YOOK , Seonghun LEE
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.
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公开(公告)号：US20240388135A1
公开(公告)日：2024-11-21
申请号：US18786043
申请日：2024-07-26
Applicant: LG Electronics Inc.
Inventor： Jinho YOUN , Jingu CHOI , Gyunghwan YOOK , Yongcheol PARK
Abstract: A wireless power receiving device according to one embodiment of the present specification comprises: a power pickup circuit for receiving wireless power from a wireless power transmitting device; and a communication/control circuit for communicating with the wireless power transmitting device by using in-band communication using a power signal of the wireless power and/or out-band communication, which is wireless communication that differs from the in-band communication, and for controlling the reception of the wireless power, wherein the communication/control circuit terminates the connection of the out-band communication on the basis of the removal of the power signal from the wireless power transmitting device in a state in which the connection of the wireless power transmitting device and the out-band communication is established.
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9.发明公开公开(公告)号：US20240356384A1
公开(公告)日：2024-10-24
申请号：US18579189
申请日：2021-07-13
Applicant: LG Electronics Inc.
Inventor： Minsoo LEE , Yongcheol PARK , Gyunghwan YOOK , Taewook KWON , Jinho YOUN
CPC classification number: H02J50/80 , H02J7/00045 , H02J50/10 , H02J50/40
Abstract: The present disclosure provides a method, performed by a wireless power receiver, for receiving wireless power in a wireless power transmitting system, and an apparatus using the method, the method comprising: transmitting, to a wireless power transmitter, a configuration packet including a field regarding availability of out-of-band (OB) of the wireless power receiver; receiving, from the wireless power transmitter, a capability packet including a field regarding availability of OB of the wireless power transmitter; and establishing a Bluetooth low energy (BLE) connection with the wireless power transmitter on the basis of the configuration packet and the capability packet, wherein the wireless power receiver transmits a first BLE packet including a plurality of Qi packets to the wireless power transmitter through the LBE connection, and the wireless power receiver receives a response related to the first BLE packet from the wireless power transmitter through the BLE connection.
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10.发明公开公开(公告)号：US20240204573A1
公开(公告)日：2024-06-20
申请号：US18287120
申请日：2022-04-18
Applicant: LG Electronics Inc.
Inventor： Taewook KWON , Gyunghwan YOOK , Jinho YOUN , Hongkwon KIM , Yongcheol PARK
CPC classification number: H02J50/60 , H02J50/12 , H02J50/402 , H02J50/80 , H04B5/79
Abstract: The present disclosure provides a method for transmitting wireless power performed by a wireless power transmitter in a wireless power transmission system, and an apparatus using same, the method comprising: receiving information for detecting whether a foreign object (FO) exists from a wireless power receiver; detecting whether the FO exists before transmission of wireless power on the basis of the information; transmitting the wireless power to the wireless power receiver on the basis of detecting that the FO does not exist; and calculating a slot quality factor on a slot while transmitting the wireless power, wherein the slot quality factor is a quality factor used to determine whether an FO has been inserted while transmitting the wireless power, and a starting point of the slot is a point at which a voltage value of a coil in a wireless power transmitter is the maximum value and a current value of the coil is 0.
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