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1.发明公开公开(公告)号：US20240356386A1
公开(公告)日：2024-10-24
申请号：US18761129
申请日：2024-07-01
申请人： LG ELECTRONICS INC.
发明人： Jingu CHOI , Minsoo LEE , Hongwon LEE , Jinkwon LIM , Jaehyu KIM , Yongcheol PARK
摘要： A device for transmission of wireless power according to an embodiment of the present specification comprises: a power conversion circuit for transmitting the wireless power to a wireless power receiving device; and a communication/control circuit for communicating with the wireless power receiving device and controlling the wireless power, wherein the communication/control circuit transmits a response to a reception data packet received from the wireless power receiving device or a transmission data packet transmitted to the wireless power receiving device on the basis of a timeout period, and the timeout period is changed according to a communication speed between the communication/control circuit and the wireless power receiving device.
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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
申请人： LG Electronics Inc.
发明人： Taewook KWON , Gyunghwan YOOK , Jinho YOUN , Hongkwon KIM , Yongcheol PARK
摘要： 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
申请人： LG ELECTRONICS INC.
发明人： Yongcheol PARK , Jaeyeol KIM , Joonho PARK , Jeongkyo SEO , Gyunghwan YOOK , Jaesung LEE
CPC分类号： H04B5/0037 , H02J50/80 , H02J7/00045 , H02J7/00034 , G06F21/445 , H04W52/223 , H04W52/286 , H04W52/34 , H02J50/005
摘要： 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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4.发明申请公开(公告)号：US20230134962A1
公开(公告)日：2023-05-04
申请号：US17432322
申请日：2019-07-30
申请人： LG Electronics Inc.
发明人： Jinkwon LIM , Jaehyu KIM , Yongcheol PARK , Joonho PARK , Taeyoung SONG , Jingu CHOI
摘要： The present invention relates to an apparatus and a method for providing charging status information in a wireless power transmission system. Disclosed in the present specification is a wireless power reception device comprising: a power pickup unit configured to receive wireless power from a wireless power transmission device by means of magnetic coupling with the wireless power transmission device at an operational frequency and convert an alternating current signal generated by the wireless power into a direct current signal; a battery configured to receive the direct current signal from the power pickup unit; and a communication/control unit configured to receive the direct current signal from the power pickup unit, perform a handover procedure from in-band communication using the operational frequency to out-band communication using a frequency other than the operational frequency, perform a procedure for selecting a priority display device on which charging status information about the battery is to be displayed through the out-band communication with the wireless power transmission device, and generate the charging status information. A user can conveniently and efficiently check charging status information about a device being charged.
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公开(公告)号：US20220239347A1
公开(公告)日：2022-07-28
申请号：US17616535
申请日：2020-01-30
申请人： LG Electronics Inc.
发明人： Jingu CHOI , Jinkwon LIM , Minsoo LEE , Joonho PARK , Jaehyu KIM , Yongcheol PARK
摘要： The present invention relates to an access control method and device in a wireless power transmission system. A wireless power transmission device comprises: a power conversion circuit configured to have a plurality of primary coils and transmit wireless power to a wireless power reception device by using the primary coil which has formed magnetic coupling to the wireless power reception device at an operating frequency; and a communication/control circuit configured to perform in-band communication with the wireless power reception device by using the operating frequency and perform out-band communication with the wireless power reception device by using a frequency other than the operating frequency, wherein the communication/control circuit can transmit information for notifying whether or not connection to the wireless power reception device is possible by using the out-band communication.
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公开(公告)号：US20220158502A1
公开(公告)日：2022-05-19
申请号：US17539895
申请日：2021-12-01
申请人： LG ELECTRONICS INC.
发明人： Yongcheol PARK
摘要： A method for receiving, by a power receiver, wireless power from a power transmitter. The method includes a ping phase of detecting execution of digital ping of the power transmitter and transmitting a response to the detected digital ping to the power transmitter using a first communication protocol; and a configuration phase of transmitting a configuration packet to the power transmitter using the first communication protocol, wherein the configuration packet includes communication protocol information of the power receiver indicating a second communication protocol supported by the power receiver. Further, the power receiver supports the second communication protocol, based on that a value of the communication protocol information is ‘1’, and the power receiver does not support the second communication protocol, based on that the value of the communication protocol information is ‘0’.
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公开(公告)号：US20220109333A1
公开(公告)日：2022-04-07
申请号：US17412909
申请日：2021-08-26
申请人： LG ELECTRONICS INC.
发明人： Yongcheol PARK
IPC分类号： H02J50/80
摘要： A wireless power transmitter according to one embodiment of the present disclosure transmits wireless power to a wireless power receiver, receives a first received power packet including an estimated received power value indicating a first calibration data point from the wireless power receiver after a negotiation phase, transmits ACK in response to the first received power packet, receives a second received power packet including an estimated received power value indicating a second calibration data point from the wireless power receiver, transmits ACK in response to the second received power packet, receives a new second received power packet including an estimated received power value indicating a third calibration data point from the wireless power receiver, transmits ACK in response to the new second received power packet, and constructs a power calibration curve using the first received power packet, the second received power packet, and the new second received power packet.
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公开(公告)号：US20220085668A1
公开(公告)日：2022-03-17
申请号：US17538549
申请日：2021-11-30
申请人： LG ELECTRONICS INC.
发明人： Yongcheol PARK
摘要： A wireless power transmitter including a power converter configured to transfer a wireless power to a wireless power receiver; and a communicator/controller configured to control the wireless power. Further, the communicator/controller is further configured to transmit, to the wireless power receiver, a bit pattern requesting permission to communicate; receive, from the wireless power receiver, a response packet granting the permission in response to the bit pattern; and transmit, to the wireless power receiver in a power transfer phase in which the wireless power is transferred, an auxiliary data transport (ADT) data packet after receiving the response packet. In addition, a header of the ADT data packet is set to a value informing a retransmission of a previous ADT data packet, based on receiving a not acknowledge (NAK) in response to the previous ADT data packet from the wireless power receiver.
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9.发明申请公开(公告)号：US20220077894A1
公开(公告)日：2022-03-10
申请号：US17525122
申请日：2021-11-12
申请人： LG ELECTRONICS INC.
发明人： Yongcheol PARK
IPC分类号： H04B5/00 , H02J50/80 , H02J50/12 , H02J50/40 , H02J50/60 , H02J50/10 , G06F1/26 , H04W12/069
摘要： A wireless power transmitter includes a power converter configured to transfer wireless power to a wireless power receiver, and a controller configured to communicate with the wireless power receiver to control transmission of the wireless power. The controller is configured to receive, from the wireless power receiver, an authentication request message for authentication of the wireless power transmitter, and transmit, to the wireless power receiver, a data stream including a plurality of auxiliary data transport (ADT) data packets in which at least a part of an authentication response message is divided. The data stream includes at a beginning an auxiliary data control packet informing a start of the data stream.
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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
申请人： LG ELECTRONICS INC.
发明人： Yongcheol PARK , Jaeyeol KIM , Joonho PARK , Jeongkyo SEO , Gyunghwan YOOK , Jaesung LEE
摘要： 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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