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    Mobile robot and method of controlling the same
    1.
    发明授权
    Mobile robot and method of controlling the same 有权

    公开(公告)号：US11226633B2

    公开(公告)日：2022-01-18

    申请号：US16473758

    申请日：2017-12-26

    Applicant: LG ELECTRONICS INC.

    Inventor： Junghwan Kim ,  Jaewon Kim ,  Hyunji Kim

    IPC: G05D1/02 ,  A47L11/40 ,  G05D1/00 ,  G06K9/00

    Abstract: A mobile robot includes: a sensor unit configured to sense an object present in a traveling direction; a camera configured to, in response to sensing of the obstacle by the sensor unit, photograph the obstacle; a data unit configured to store information regarding a plurality of obstacles; a controller configured to control an operation by recognizing the obstacle based on the information stored in the data unit; a travel unit configured to perform a designated operation according to a control command from the controller; and a speaker configured to output a designated sound according to a control command from the controller, wherein the controller comprises: an obstacle recognizer configured to analyze an image of the obstacle photographed by the camera, compare the image of the obstacle with data stored in the data unit, recognize the obstacle, and determine a type of the obstacle; and a motion controller configured to, in response to a type of the obstacle recognized by the obstacle recognizer, perform a designated operation according to setting stored in the data, and accordingly, it is possible to determine a type of an obstacle by recognizing the obstacle, effectively cope with obstacles by performing different operations according to types of the obstacles, improve cleaning efficiency, enable the mobile robot to recognize an obstacle and determine a type thereof within a short period of time, allow a user to modify an operation responsive to the type of the obstacle, and perform an operation suitable for characteristics of the obstacle, an area to be cleaned, or a surrounding environment.

    Optimizing data partitioning and replacement strategy for convolutional neural networks
    2.
    发明授权
    Optimizing data partitioning and replacement strategy for convolutional neural networks 有权

    公开(公告)号：US11010308B2

    公开(公告)日：2021-05-18

    申请号：US16428748

    申请日：2019-05-31

    Applicant: LG ELECTRONICS INC.

    Inventor： Jaewon Kim ,  Thi Huong Giang Nguyen

    IPC: G06F12/126 ,  G06N20/10 ,  G06N3/063

    Abstract: Embodiments of the present disclosure include method for optimizing an internal memory for calculation of a convolutional layer of a convolutional neural network (CNN), the method including determining a computation cost of calculating the convolutional layer using each combination of a memory management scheme of a plurality of memory management schemes and data partition sizes of input feature map (IFM) data, kernel data, and output feature map (OFM) data to be loaded in the internal memory; identifying one combination of a memory management scheme and data partition sizes having a lowest computation cost for the convolutional layer; and implementing the CNN to use the one combination for calculation of the convolutional layer.

    Mobile terminal and controlling method thereof
    3.
    发明授权
    Mobile terminal and controlling method thereof 有权

    公开(公告)号：US09733767B2

    公开(公告)日：2017-08-15

    申请号：US14173572

    申请日：2014-02-05

    Applicant: LG ELECTRONICS INC.

    Inventor： Hangsoo Shin ,  Jaewon Kim

    IPC: G09G1/00 ,  G06F3/044 ,  G06F3/041

    CPC classification number: G06F3/044 ,  G06F3/0418

    Abstract: A mobile terminal and controlling method thereof are disclosed, by which a water mode can be automatically entered in a manner of periodically monitoring a capacitance value of a touchscreen. The present invention includes an electrostatic touchscreen and a controller, if at least one of a size of a capacitance value detected through the touchscreen and a variation of a per-region capacitance value detected through the touchscreen meets a first condition, entering a water mode for disabling a touch control function of the touchscreen.

    Signal transmission and reception method using random beamforming in wireless communication system and apparatus therefor
    7.
    发明授权
    Signal transmission and reception method using random beamforming in wireless communication system and apparatus therefor 有权
    在无线通信系统中使用随机波束成形的信号发送和接收方法及其装置

    公开(公告)号：US09264206B2

    公开(公告)日：2016-02-16

    申请号：US14066302

    申请日：2013-10-29

    Applicant: LG ELECTRONICS INC.

    Inventor： Jonghyun Park ,  Byounghoon Kim ,  Sukho Shin ,  Wonjin Sung ,  Jaewon Kim ,  Kijun Kim

    IPC: H04L5/00

    CPC classification number: H04L5/0091 ,  H04B7/0606 ,  H04B7/0617

    Abstract: A method for transmitting a signal to a user equipment by a base station in a wireless communication system is disclosed. The method includes receiving information about a preferred beamforming vector in a first subframe from the user equipment, selecting a first random beamformer corresponding to the first subframe from a beamforming vector set for the first subframe, using the information about the preferred beamforming vector, transmitting a downlink signal to the user equipment in the first subframe using the first random beamformer, selecting a second random beamformer corresponding to a second subframe, using the first random beamformer, and transmitting a downlink signal to the user equipment in the second subframe using the second random beamformer.

    Abstract translation: 公开了一种在无线通信系统中由基站向用户设备发送信号的方法。 该方法包括从用户设备接收关于第一子帧中的优选波束形成向量的信息，使用关于优选波束成形向量的信息，从针对第一子帧设置的波束成形向量中选择与第一子帧对应的第一随机波束形成器， 使用第一随机波束形成器向第一子帧中的用户设备发送下行链路信号，使用第一随机波束形成器选择与第二子帧对应的第二随机波束形成器，并且使用第二随机波形形成器向第二子帧中的用户设备发送下行链路信号 波束形成器。

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