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    Wireless power transfer method, apparatus and system
    32.
    发明授权
    Wireless power transfer method, apparatus and system 有权

    公开(公告)号：US10666082B2

    公开(公告)日：2020-05-26

    申请号：US15319980

    申请日：2015-06-18

    Applicant: LG ELECTRONICS INC.

    Inventor： Yongcheol Park ,  Jaesung Lee ,  Jeongkyo Seo ,  Jungjoon Lee ,  Beomseok Chae ,  Jihyun Lee ,  Kyunghwan Kim

    IPC: H02J7/02 ,  H04B5/00 ,  H02J50/40 ,  H02J50/12 ,  B60L53/12 ,  H02J50/60

    Abstract: The present disclosure relates to a foreign object detection method of a wireless power transmitter, and the method may include acquiring the frequency characteristics of a current flowing through a coil within the wireless power transmitter, comparing a peak frequency with a resonant frequency, and detecting whether or not the foreign object is placed on the transmitter through the comparison. In addition, the present disclosure relates to an interference avoidance method of a wireless power transmitter, and the method may include connecting a head unit of an automobile in a wireless manner through a communication device, receiving a first signal for avoiding interference from the head unit to stop wireless charging or change a first frequency band to a second frequency band, and receiving a second signal from the head unit to resume the wireless charging or change to the first frequency band.

    Wireless power transmitter and receiver
    33.
    发明授权
    Wireless power transmitter and receiver 有权

    公开(公告)号：US10601249B2

    公开(公告)日：2020-03-24

    申请号：US15453589

    申请日：2017-03-08

    Applicant: LG ELECTRONICS INC.

    Inventor： Yongcheol Park ,  Joonho Park ,  Jihyun Lee

    IPC: H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H02J7/02 ,  H02J50/60 ,  H02J50/90

    Abstract: Disclosed is a method for wirelessly transmitting, by a power transmitter including a primary coil, power. The method may include detecting the placement of objects on a surface of an interface included in the power transmitter and selecting a power receiver which belongs to the detected objects and to which power is to be transmitted, performing digital ping for applying a power signal for detecting and identifying the power receiver to the power receiver and receiving a response to the digital ping from the power receiver, obtaining information about the configuration of the power receiver and establishing a power transfer contract with the power receiver using the configuration information, and wirelessly transmitting the power to the power receiver based on the established power transfer contract.

    Refrigerator
    38.
    发明授权
    Refrigerator 有权

    公开(公告)号：US10066869B2

    公开(公告)日：2018-09-04

    申请号：US15838571

    申请日：2017-12-12

    Applicant: LG ELECTRONICS INC.

    Inventor： Jihyun Lee ,  Woonkyu Seo ,  Daesung Lee

    IPC: A47B96/04 ,  F25D29/00 ,  G06T7/38 ,  F25D23/12 ,  H04N5/232 ,  F25D23/06 ,  F25D25/02 ,  H04N5/445 ,  H04N7/18 ,  F25D23/02

    Abstract: Disclosed is a refrigerator. The refrigerator includes a main body having a first storage compartment and a second storage compartment, in which food is stored, a first door configured to open the first storage compartment via pivotal rotation thereof, a second door configured to be moved forward of the second storage compartment to open the second storage compartment, a receptacle configured to be moved along with the second door and received in the second storage compartment, the receptacle serving to store food therein, and a camera installed to the main body to take a picture of the receptacle. The refrigerator further includes a control unit configured to combine a plurality of pictures taken by the camera as the second door is moved and configured to correct the images into an image showing the receptacle.

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