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11.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
Applicant: LG Electronics Inc.
Inventor： Jinkwon LIM , Jaehyu KIM , Yongcheol PARK , Joonho PARK , Taeyoung SONG , Jingu CHOI
Abstract: 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
Applicant: LG Electronics Inc.
Inventor： Jingu CHOI , Jinkwon LIM , Minsoo LEE , Joonho PARK , Jaehyu KIM , Yongcheol PARK
Abstract: 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：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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公开(公告)号：US20200295606A1
公开(公告)日：2020-09-17
申请号：US16793946
申请日：2020-02-18
Applicant: LG ELECTRONICS INC.
Inventor： Joonho PARK , Seonghun LEE , Bongsik KWAK
Abstract: Disclosed are a wireless power transfer apparatus and a method of controlling the same. The wireless power transfer apparatus in one example can include a power transmission circuit including a plurality of coils and configured to transfer power through the plurality of coils, and a controller, wherein the controller is configured to calculate a data value of a coil with respect to each of the plurality of coils, and determine a position of an object in a charge region corresponding to the plurality of coils in a charge region based on a comparison result obtained by comparing the data value calculated for each of the plurality of coils.
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15.发明申请公开(公告)号：US20230084965A1
公开(公告)日：2023-03-16
申请号：US17986595
申请日：2022-11-14
Applicant: LG ELECTRONICS INC.
Inventor： Joonho PARK , Jinkwon LIM , Jingu CHOI , Yongcheol PARK
Abstract: The present specification relates to a device and method for supporting heterogeneous communication in a wireless power transfer system. The present specification discloses a wireless power reception device comprising: a power pickup circuit configured to receive, from a wireless power transfer device, wireless power generated on the basis of magnetic coupling in a power transfer phase; and a communication and control circuit configured to transmit, to the wireless power transfer device, a first random address packet including a random address of the wireless power reception device or receive, from the wireless power transfer device, a second random address packet including a random address of the wireless power transfer device via in-band communication. By performing a handover using a random address, cross reference can be prevented and security can be enhanced, and thus a BLE connection in a wireless charging system can be more safely performed.
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Patent Agency Ranking
公开(公告)号：US20220278561A1
公开(公告)日：2022-09-01
申请号：US17597500
申请日：2020-05-15
Applicant: LG ELECTRONICS INC.
Inventor： Jingu CHOI , Jinkwon LIM , Minsoo LEE , Joonho PARK , Jaehyu KIM , Yongcheol PARK
Abstract: A wireless power transmission device according to an embodiment of the present specification comprises: a power conversion circuit for transmitting wireless power to a wireless power reception device by means of magnetic coupling with the wireless power reception device at an operating frequency; and a communication/control circuit for communicating with the wireless power reception device by using in-band communication that uses the operating frequency and/or out-band communication that uses a frequency other than the operating frequency, and for communicating with at least one other wireless power transmission device by using the out-band communication, wherein the communication/control circuit measures the distance to the wireless power reception device and transmits the information about the measured first distance to the other wireless power transmission device.
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公开(公告)号：US20220277285A1
公开(公告)日：2022-09-01
申请号：US17597504
申请日：2020-06-29
Applicant: LG ELECTRONICS INC.
Inventor： Jinkwon LIM , Minsoo LEE , Jingu CHOI , Joonho PARK , Jaehyu KIM , Yongcheol PARK
Abstract: According to an aspect of the present invention, a wireless power reception device includes: a power pick-up circuit which is configured to form magnetic coupling with a wireless power transmission device and receive wireless power from the wireless power transmission device; and a communication/control circuit which is configured to perform at least one among control of the transmission of the wireless power and data transmission and reception on the basis of communication with the wireless power transmission device, wherein the communication/control circuit can receive a check message for checking payment information from the wireless power transmission device and perform a payment procedure for wireless power transmission, and can provide a user interface related to information for the payment procedure.
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18.发明申请公开(公告)号：US20220190646A1
公开(公告)日：2022-06-16
申请号：US17594430
申请日：2020-04-16
Applicant: LG ELECTRONICS INC.
Inventor： Joonho PARK , Minsoo LEE , Jinkwon LIM , Jingu CHOI
Abstract: The present specification relates to a device and a method enabling in-band communication and out-band communication between a wireless power transmission device and a wireless power receiving device. The present specification discloses a wireless power transmission device, a wireless power transmission method, a wireless power receiving device, a wireless power receiving method and a wireless power transmission system, whereby the existence or not of an inter-device communication connection history is checked using whitelist information of an out-band communication module, and when corresponding to a reconnection, out-band communication is connected, and data exchange for wireless power transmission is carried out via the out-band communication.
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公开(公告)号：US20220182102A1
公开(公告)日：2022-06-09
申请号：US17594212
申请日：2020-04-17
Applicant: LG ELECTRONICS INC.
Inventor： Joonho PARK
Abstract: The present invention relates to wireless power transmission. A method for controlling a communication connection for a wireless charging device supporting in-band communication and out-band communication, according to an embodiment of the present invention, may comprise: a step of receiving a first packet from a device through in-band communication; a step of generating a power transmission contract on the basis of the first packet; a step of performing an out-band communication connection on the basis of the power transmission contract; a step of controlling power by using out-band communication when the out-band communication connection is successful.
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公开(公告)号：US20220131422A1
公开(公告)日：2022-04-28
申请号：US17431253
申请日：2019-10-16
Applicant: LG Electronics Inc.
Inventor： Jingu CHOI , Jinkwon LIM , Taeyoung SONG , Yongcheol PARK , Joonho PARK
Abstract: The present invention relates to a device and method for performing power allocation and out-band activation by using short-range communication in a wireless power transmission system. A wireless power receiver device may comprise: a power pick-up circuit configured to receive power wirelessly from a wireless power transmitter device including a plurality of primary coils by magnetic coupling to the wireless power transmitter device at an operating frequency and to convert an alternating current signal induced by the wireless power into a direct current signal; a communication/control circuit receiving the direct current signal supplied from the power pick-up circuit and including an in-band communication module which communicates with the wireless power transmitter device by using the operating frequency, and an out-band communication module which communicates with the wireless power transmitter device by using any frequency except for the operating frequency; and a load configured to receive the direct current signal supplied from the power pick-up circuit, wherein the communication/control circuit transmits a message informing of the start of power allocation negotiation, to other wireless power receiver devices by using the out-band communication module.
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