Patents by Inventor Koh CHOI

Koh CHOI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12204334
    Abstract: The present specification relates to a mobile robot and a control method therefor, and relates to a mobile robot and a control method therefor, whereby, on the basis of a result of comparing position information measured on the basis of information on the traveling of a main body, with position information measured on the basis of the result of receiving a signal, the mobile robot determines a specific position point, within a traveling area, where a speed limit occurs.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: January 21, 2025
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyoungsuk Ko, Koh Choi, Hyungsub Lee, Sungwook Lee
  • Patent number: 11989017
    Abstract: The present disclosure relates to a station apparatus, including an Ultra-wideband (UWB) module to receive a first UWB signal transmitted by a moving robot, and a control unit to calculate a reception angle of the first UWB signal upon the reception of the first UWB signal, and control the UWB module to transmit a second UWB signal, including a direction value determined based on the reception angle, to the moving robot for return of the moving robot.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 21, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyoungsuk Ko, Byungjin Kim, Sungwook Lee, Hyungsub Lee, Koh Choi
  • Patent number: 11960278
    Abstract: A moving robot and a controlling method thereof are disclosed. A moving robot according to the present disclosure includes a traveling unit to move a main body, a communication unit to communicate with a location information transmitter for transmitting signals within an area, and a control unit to set a virtual boundary with respect to a location calculated based the signals, and to control the traveling unit to move the main body without departing from the boundary. The communication unit includes first and antennas provided at respective transceivers that transceive signals with the location information transmitter, and the first and second antennas have an adjustable distance. When signals are received through the first and second antennas, the control unit determines a relative location of the location information transmitter based on a current location of the main body using a frequency corresponding to the distance between the first and second antennas.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: April 16, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyoungsuk Ko, Sungwook Lee, Hyungsub Lee, Koh Choi
  • Patent number: 11910742
    Abstract: The present disclosure relates to a moving robot, a moving robot system, and a method for moving to a charging system of the moving robot, wherein the moving robot moves to the charging system based on a reception result obtained by receiving a plurality of transmission signals transmitted from the charging station and a sensing result obtained by sensing a magnetic field state.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: February 27, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyoungsuk Ko, Byungjin Kim, Sungwook Lee, Hyungsub Lee, Koh Choi
  • Patent number: 11561275
    Abstract: A moving robot has a body and at least one wheel for moving the main body. The moving robot has a transceiver to communicate with a plurality of location information transmitters located within an area. The moving robot also has a memory storing coordinate information regarding positions of the location information transmitters. Further, the moving robot has a controller that sets a virtual boundary based on location information determined using signals transmitted by the location information transmitters. The controller controls the wheel so that the main body is prevented from traveling outside the virtual boundary. The controller sets a reference location information transmitter and corrects the stored coordinate information by correcting height errors based on height differences between the reference location information transmitter and the other location information transmitters. The controller also corrects a current position of the main body based on the corrected stored coordinate information.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: January 24, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyoungsuk Ko, Sungwook Lee, Hyungsub Lee, Koh Choi
  • Patent number: 11350808
    Abstract: The vacuum cleaner includes a cleaner body including a wheel for moving and a wheel motor for driving the wheel, a suction hose connected to the cleaner body, a handle connected to the suction hose, at least one detection sensor disposed in the suction hose to detect an inclination of the suction hose, and a controller controlling the wheel motor on the basis of the inclination of the suction hose detected by the at least one detection sensor.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: June 7, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyoungsuk Ko, Sungsuk Kang, Byungjin Kim, Sunghyuk Park, Koh Choi, Subong Hong
  • Publication number: 20220121211
    Abstract: The present specification relates to a mobile robot and a control method therefor, and relates to a mobile robot and a control method therefor, whereby, on the basis of a result of comparing position information measured on the basis of information on the traveling of a main body, with position information measured on the basis of the result of receiving a signal, the mobile robot determines a specific position point, within a traveling area, where a speed limit occurs.
    Type: Application
    Filed: January 31, 2020
    Publication date: April 21, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: KYOUNGSUK KO, Koh CHOI, Hyungsub LEE, Sungwook LEE
  • Publication number: 20220111522
    Abstract: Disclosed are a mobile robot, a control method therefor, and a terminal. The mobile robot according to the present disclosure comprises: a driving unit for moving a main body; a communication unit for communicating with a plurality of location information transmitters installed within an area and transmitting signals; and a control unit for calculating positioning-related information from at least one of a first signal transmitted between the location information transmitters and a second signal transmitted between the main body and the location information transmitters, detecting an entry of a moving body into the area in response to the amount of a change in the calculated positioning-related information being outside of a reference range, and performing an operation corresponding to the detection.
    Type: Application
    Filed: January 31, 2020
    Publication date: April 14, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyoungsuk KO, Koh CHOI, Hyungsub LEE, Sungwook LEE
  • Patent number: 11266067
    Abstract: The present disclosure relates to a moving robot, a control method thereof, and a moving robot system. A moving robot according to the present disclosure includes a main body, a traveling unit configured to move the main body, a communication unit configured to communicate with a terminal and a location information transmitter, and a control unit configured to set a travel area using location information based on a signal received from the location information transmitter. The control unit is configured to recognize a location of the terminal. When location information regarding a target point within the boundary, pointed by the terminal at the recognized location, is received, the control unit is configured to store the location information. Also, the control unit is configured to control a traveling unit to move in the travel area while avoiding a predetermined area comprising coordinates matching the stored location information.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: March 8, 2022
    Assignee: LG Electronics Inc.
    Inventors: Kyoungsuk Ko, Koh Choi, Sungwook Lee, Hyungsub Lee
  • Patent number: 11178811
    Abstract: A lawn mower robot has a main body, and a driving unit configured to move the main body. The lawn mower robot also has a receiver configured to receive a signal transmitted from at least one transmission device in a travel area. The lawn more robot also has a controller. The controller controls the driving unit based on a result and a prestored area map. The result is based on the signal received by the receiver, and the area map includes an arrangement position of the at least one transmission device. The controller detects a position change of the at least one transmission device based on the result and updates the area map by determining a present position of the at least one transmission device in the area map according to the position change.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: November 23, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyoungsuk Ko, Sungwook Lee, Hyungsub Lee, Koh Choi
  • Publication number: 20210302985
    Abstract: The present specification relates to a moving robot, a moving robot system, and a method for moving to a charging system of the moving robot, wherein the moving robot determines a distance between the moving robot and the charging station based on a reception result of a transmission signal transmitted from the charging station to thereby determine a moving path for moving to the charging station based on the determined distance.
    Type: Application
    Filed: August 1, 2019
    Publication date: September 30, 2021
    Applicant: LG Electronics Inc.
    Inventors: Kyoungsuk KO, Byungjin KIM, Sungwook LEE, Hyungsub LEE, Koh CHOI
  • Publication number: 20210302986
    Abstract: The present disclosure relates to a moving robot, a moving robot system, and a method for moving to a charging system of the moving robot, wherein the moving robot moves to the charging system based on a reception result obtained by receiving a plurality of transmission signals transmitted from the charging station and a sensing result obtained by sensing a magnetic field state.
    Type: Application
    Filed: August 2, 2019
    Publication date: September 30, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyoungsuk KO, Byungjin KIM, Sungwook LEE, Hyungsub LEE, Koh CHOI
  • Publication number: 20210302967
    Abstract: The present disclosure relates to a station apparatus, including an Ultra-wideband (UWB) module to receive a first UWB signal transmitted by a moving robot, and a control unit to calculate a reception angle of the first UWB signal upon the reception of the first UWB signal, and control the UWB module to transmit a second UWB signal, including a direction value determined based on the reception angle, to the moving robot for return of the moving robot.
    Type: Application
    Filed: August 5, 2019
    Publication date: September 30, 2021
    Applicant: LG Electronics Inc.
    Inventors: Kyoungsuk KO, Byungjin KIM, Sungwook LEE, Hyungsub LEE, Koh CHOI
  • Publication number: 20210294330
    Abstract: A moving robot according to an embodiment of the present disclosure includes a traveling unit to move a main body thereof, a communication unit to perform communication with a controller using signals, and a controller to calculate a signal distance between the controller and the main body in response to reception of a first signal from the controller, and controls the traveling unit so that the main body moves while following the controller when the calculated signal distance is within a predetermined range. The control unit calculates a signal distance between the controller and the main body in response to reception of a second signal from the controller while the main body is following the controller, and releases the follow-up travel of the main body when the calculated signal distance is within a predetermined range.
    Type: Application
    Filed: July 16, 2019
    Publication date: September 23, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyoungsuk KO, Byungjin KIM, Sungwook LEE, Hyungsub LEE, Koh CHOI
  • Publication number: 20210271238
    Abstract: A moving robot and a controlling method thereof are disclosed. A moving robot according to the present disclosure includes a traveling unit to move a main body, a communication unit to communicate with a location information transmitter for transmitting signals within an area, and a control unit to set a virtual boundary with respect to a location calculated based the signals, and to control the traveling unit to move the main body without departing from the boundary. The communication unit includes first and antennas provided at respective transceivers that transceive signals with the location information transmitter, and the first and second antennas have an adjustable distance. When signals are received through the first and second antennas, the control unit determines a relative location of the location information transmitter based on a current location of the main body using a frequency corresponding to the distance between the first and second antennas.
    Type: Application
    Filed: July 16, 2019
    Publication date: September 2, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyoungsuk KO, Sungwook LEE, Hyungsub LEE, Koh CHOI
  • Patent number: 11073827
    Abstract: A mobile robot may include a plurality of position information transmitters installed in an area to transmit signals for determining position information, a terminal configured to analyze the signals received from the position information transmitters and a mobile robot configured to receive the signals from the position information transmitters to determine the position information, and to set a boundary in the area based on the position information, wherein the terminal evaluates an installation position of the position information transmitters by analyzing the signals received from the position information transmitters. Accordingly, even when a work area is reduced or enlarged, a position information transmitter may be further provided, such that a boundary may be reset easily for an enlarged area.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: July 27, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyoungsuk Ko, Sungwook Lee, Junghee Kim, Hyungsub Lee, Koh Choi
  • Publication number: 20210161067
    Abstract: The present specification relates to a moving robot, a moving robot system, and a method for moving to a charging system of the moving robot, wherein the moving robot moves to the charging system based on a plurality of reception results of a transmission signal transmitted from the charging station and a sensing result of a state of a magnetic field at one point.
    Type: Application
    Filed: August 2, 2019
    Publication date: June 3, 2021
    Applicant: LG Electronics Inc.
    Inventors: Kyoungsuk KO, Byungjin KIM, Sungwook LEE, Hyungsub LEE, Koh CHOI
  • Publication number: 20210165421
    Abstract: A moving robot includes a traveling unit, a power supply unit, a communication unit, and a memory to store therein coordinates information regarding a point to which the main body has moved by a reference distance in a state of being in contact with the charging station, and a control unit to output a control command to return to the charging station based on a state of the power supply unit while the main body travels in the one area, to determine a position of the charging station from a current position of the main body based on a first signal transmitted from the charging station and a second signal transmitted by the communication unit, in response to the output of the control command, and to controls the traveling unit so that the main body moves to a position corresponding to the stored coordinates information.
    Type: Application
    Filed: July 25, 2019
    Publication date: June 3, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: KYOUNGSUK KO, BYUNGJIN KIM, SUNGWOOK LEE, HYUNGSUB LEE, KOH CHOI
  • Patent number: 10942510
    Abstract: A mobile robot may include a controller configured to set a virtual boundary based on position information determined by a terminal or a position sensor in an area, and to set an area of any one side of the boundary as a traveling area. The controller may control a traveling unit so that a main body moves within the traveling area without moving outside the boundary. Accordingly, the controller may easily set the boundary using the position information, and may control traveling of the mobile robot by setting the traveling area formed by the boundary. The controller may correct a position error, may reflect information on obstacles in setting the traveling area to set a traveling area appropriate for a traveling environment of the mobile robot, and/or may easily change the set traveling area.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: March 9, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyoungsuk Ko, Sungwook Lee, Jongjin Woo, Jaehoon Lee, Junghee Kim, Hyungsub Lee, Koh Choi
  • Publication number: 20200163516
    Abstract: The vacuum cleaner includes a cleaner body including a wheel for moving and a wheel motor for driving the wheel, a suction hose connected to the cleaner body, a handle connected to the suction hose, at least one detection sensor disposed in the suction hose to detect an inclination of the suction hose, and a controller controlling the wheel motor on the basis of the inclination of the suction hose detected by the at least one detection sensor.
    Type: Application
    Filed: April 18, 2018
    Publication date: May 28, 2020
    Inventors: Kyoungsuk KO, Sungsuk KANG, Byungjin KIM, Sunghyuk PARK, Koh CHOI, Subong HONG