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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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12.发明申请公开(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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公开(公告)号：US20210265867A1
公开(公告)日：2021-08-26
申请号：US17252509
申请日：2019-06-17
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK
Abstract: Disclosed in the present application is a wireless power receiver comprising: a power pickup unit configured to receive, in a power transfer phase, wireless power generated by magnetic coupling from a wireless power transmitter; and a communications/control unit configured to transfer, in a negotiation phase, a first end-of-power-transfer (EPT) packet to the wireless power transmitter for detecting an RFID/NFC card, and to detect the RFID/NFC card during a re-ping time secured on the basis of the first EPT packet, wherein the first EPT packet instructs requesting the removal of a power signal for a predetermined time. As the process for detecting communication cards, such as RFID or NFC, between the wireless power transmitter and receiver is clearly defined, such RFID/NFC cards can be protected against getting destroyed by the wireless power, and a stable wireless power transfer can be achieved.
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公开(公告)号：US20210257867A1
公开(公告)日：2021-08-19
申请号：US17222516
申请日：2021-04-05
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK
Abstract: A wireless power transmitter, a wireless power receiver and methods associated therewith are discussed. The wireless power transmitter includes a power converter configured to transfer wireless power to an external receiver; and at least one processor configured to communicate with the receiver to control transmission of the wireless power and to perform transmission or reception of data, wherein the processor is configured to receive, from the receiver, a received power packet (RPP) which informs a value of received power; transmit, to the wireless power receiver, a bit pattern for requesting communication in response to the RPP; and receive a polling packet from the receiver in response to the bit pattern.
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公开(公告)号：US20210184513A1
公开(公告)日：2021-06-17
申请号：US17185306
申请日：2021-02-25
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK
IPC: H02J50/80
Abstract: 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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Patent Agency Ranking
16.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：US20200322003A1
公开(公告)日：2020-10-08
申请号：US16905298
申请日：2020-06-18
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK
Abstract: Provided are a wireless power transmitter including a power conversion unit configured to transfer wireless power to a wireless power receiver by forming magnetic coupling with the wireless power receiver; and a communication/control unit configured to communicate with the wireless power receiver to control transmission of the wireless power and to perform application level data communication, wherein the communication/control unit transmits or receives data stream comprising sequence of data packets carrying the application level data based on application level data transport stream, wherein the data stream comprises an auxiliary data control packet at the end of the data stream.
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公开(公告)号：US20200259374A1
公开(公告)日：2020-08-13
申请号：US16859519
申请日：2020-04-27
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK , Jeongkyo SEO , Seonghun LEE , Bongsik KWAK , Jaesung LEE
Abstract: A communication method of a wireless power receiver for receiving power in a wireless manner, includes generating information of the wireless power receiver based on a load modulation within a slot being allocated to the wireless power receiver while wireless power is received from a wireless power transmitter; receiving the wireless power from to the wireless power transmitter; generating first information of the wireless power receiver based on the load modulation within a first unallocated slot among the plurality of slots, wherein the first information is in collision with second information generated by another wireless power receiver; demodulating a collision related signal of the wireless power transmitter based on a frequency shift keying (FSK); and executing a collision resolution mechanism.
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公开(公告)号：US20200099417A1
公开(公告)日：2020-03-26
申请号：US16696420
申请日：2019-11-26
Applicant: LG Electronics Inc.
Inventor： Yongcheol PARK
Abstract: According to an embodiment of the present invention, a method for transferring wireless power by an electric power transmitter may comprise: a selection step of monitoring a placement or a removal of an object on or from an interface surface of the power transmitter; a ping step of performing a digital ping and receiving a response from a power receiver; an identifying/configuring step of receiving a configuration packet including configuration information of the power receiver; and a negotiating step of transmitting a capability packet including information on a level of power transferred by the power transmitter, wherein the capability packet may include an NFC detection field indicating whether the power transmitter has a capability of detecting an RFID and/or an NFC, and/or whether the RDID and/or the NFC is detected.
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公开(公告)号：US20200044694A1
公开(公告)日：2020-02-06
申请号：US16425615
申请日：2019-05-29
Applicant: LG ELECTRONICS INC.
Inventor： Yongcheol PARK
Abstract: Provided are a device and method for performing authentication in a wireless power transfer system. Provided is an authentication method in a wireless power transfer system including receiving a first packet including indication information on whether a target device supports an authentication function from the target device; transmitting, when the target device supports an authentication function, an authentication request message to the target device; receiving an authentication response message including a certificate on wireless charging from the target device in response to the authentication request message; and confirming authentication of the target device based on the authentication response message.
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