公开(公告)号：US20230255432A1

公开(公告)日：2023-08-17

申请号：US18014259

申请日：2021-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Inbo SHIM ,  Hwan YOO ,  Seungjin AHN

IPC: A47L11/40

CPC classification number: A47L11/4011 ,  A47L11/4038 ,  A47L2201/06

Abstract: The present invention relates to a robot cleaner, a control system of a robot cleaner and a control method of a robot cleaner, and the invention includes a robot cleaner that stores a map including information on a drivable area of a cleaning area and drives in the cleaning area and a terminal that inputs a cleaning command to the robot cleaner, the terminal setting a virtual designated area on the map in response to a user input, the robot cleaner moving to the designated area and driving within the designated area when the designated area is set from the terminal, and thus, the invention has the effect of intensively cleaning the designated area arbitrarily designated by a user.

公开(公告)号：US20210034062A1

公开(公告)日：2021-02-04

申请号：US16943147

申请日：2020-07-30

Applicant: LG ELECTRONICS INC.

Inventor： Seungjin AHN ,  Hyungyul MAENG

IPC: G05D1/02 ,  A47L11/40 ,  A47L11/282

Abstract: A mobile robot rotates a spin mop to move a main body along a surface and clean the surface. A location change of the main body during its motion is analyzed to determine if the robot is traveling abnormally. If abnormal traveling is occurring, the location where it is occurring is stored and re-cleaning of the location is initiated. The location where abnormal traveling occurred may be considered in next cleaning to improve cleaning efficiency.

公开(公告)号：US20250030527A1

公开(公告)日：2025-01-23

申请号：US18682098

申请日：2022-09-15

Applicant: LG ELECTRONICS INC.

Inventor： Seungjin AHN ,  Suckchel YANG ,  Seonwook KIM ,  Youngdae LEE

IPC: H04L5/00 ,  H04W72/121 ,  H04W76/15

Abstract: A method and apparatus for transmitting or receiving a reference signal in a wireless communication system are disclosed. The method by which a terminal receives a tracking reference signal (TRS) in a wireless communication system, according to an embodiment of the present disclosure, comprises the steps of: receiving, from a network, a control element including first information indicating identifiers for N (N is an integer greater than or equal to 1) cells for which activation is indicated and second information including a field related to a TRS corresponding to each of the N cells; and receiving one or more TRSs for one or more cells from among the N cells, wherein the size of the control element may be on the basis of an N value.

公开(公告)号：US20180039275A1

公开(公告)日：2018-02-08

申请号：US15666987

申请日：2017-08-02

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae YUN ,  Seungjin AHN

IPC: G05D1/02 ,  A47L11/40 ,  A47L9/28 ,  A47L9/00 ,  A47L9/16

Abstract: A autonomous robot includes a main body, a driving unit to move the main body within an operation region, a battery to supply power to the driving unit, and a controller to control the driving unit in a manner that the main body travels along a wall of the operation region to move to a charging stand when a remaining power level of the battery drops below a reference power level, wherein the controller controls the driving unit in a manner that the main body escape from one region corresponding to a closed curve when a movement path of the main body forms the closed curve while the driving unit performs wall following.

公开(公告)号：US20230224126A1

公开(公告)日：2023-07-13

申请号：US18049907

申请日：2022-10-26

Applicant: LG ELECTRONICS INC.

Inventor： Seungjin AHN ,  Suckchel YANG ,  Seonwook KIM

IPC: H04L5/00 ,  H04W76/20 ,  H04W72/12

CPC classification number: H04L5/0051 ,  H04W76/20 ,  H04W72/1273

Abstract: A method and an apparatus for transmitting or receiving a reference signal in a wireless communication system are disclosed. A method of receiving a tracking reference signal (TRS) by a terminal in a wireless communication system according to an embodiment of the present disclosure may comprise: receiving, from a network, at least one of first offset information related to at least one burst of the TRS, or second offset information related to the at least one burst; and receiving, from the network, the TRS in the at least one burst, wherein the first offset information is related to a first burst of the at least one burst, wherein, based on the second offset information being absent, a number of the at least one burst is one, and wherein, based on the second offset information being present, the second offset information indicates an offset between the first burst and a second burst.