Patents by Inventor Jaehyeuck CHOI

Jaehyeuck 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).

  • Publication number: 20240429840
    Abstract: Disclosed herein are a motor safety control method that can efficiently detect an abnormality of a motor sensor configured to sense a rotational motion of a motor and control a safety operation of the motor based thereon, and a robot for implementing the method. The motor safety control method for a robot may include receiving a first motor value from a high-resolution sensor of a motor, receiving a second motor value from a low-resolution sensor of the motor, and comparing a threshold with a difference between the first motor value and the second motor value, and transmitting an operation signal to a motor driver for the motor to continue or stop operation of the motor.
    Type: Application
    Filed: February 28, 2024
    Publication date: December 26, 2024
    Applicant: LG ELECTRONICS INC.
    Inventors: Hokyung KA, Junsin PARK, Jongkwon YI, Sunuk KIM, Jaehyeuck CHOI
  • Patent number: 11366530
    Abstract: The present invention relates to a rolly keyboard. The rolly keyboard comprises: a body having a polygonal columnar shape; a scroll wheel formed in the body; a key assembly coupled to the body, wherein the key assembly comprises a plurality of key line portions in which the keys are disposed in each of a plurality of lines, wherein the plurality of key line portions are wound in the polygonal columnar shape of the body. Thus, scrolling can be accomplished by the scroll wheel.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: June 21, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinho Youn, Hyokune Hwang, Jaehyeuck Choi, Sooyong Park
  • Publication number: 20210349550
    Abstract: The present invention relates to a rolly keyboard. The rolly keyboard comprises: a body having a polygonal columnar shape; a scroll wheel formed in the body; a key assembly coupled to the body, wherein the key assembly comprises a plurality of key line portions in which the keys are disposed in each of a plurality of lines, wherein the plurality of key line portions are wound in the polygonal columnar shape of the body. Thus, scrolling can be accomplished by the scroll wheel.
    Type: Application
    Filed: July 11, 2017
    Publication date: November 11, 2021
    Applicant: LG ELECTRONICS INC.
    Inventors: Jinho YOUN, Hyokune HWANG, Jaehyeuck CHOI, Sooyong PARK
  • Patent number: 10203766
    Abstract: Disclosed is display apparatus for a vehicle including a display unit, a gesture sensing unit located around the display unit for sensing a 3D gesture made by an object, and a processor for generating a control signal based on the 3D gesture. The gesture sensing unit includes a first light-emitting unit for emitting a first group of rays along a first optical path, a second light-emitting unit for emitting a second group of rays along a second optical path, and a light-receiving unit for receiving a first group of reflected rays formed when the first group of rays is reflected by the object and a second group of reflected rays formed when the second group of rays is reflected by the object.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 12, 2019
    Assignee: LG Electronics Inc.
    Inventors: Jinho Youn, Jaehyeuck Choi, Hyokune Hwang
  • Publication number: 20170308173
    Abstract: Disclosed is display apparatus for a vehicle including a display unit, a gesture sensing unit located around the display unit for sensing a 3D gesture made by an object, and a processor for generating a control signal based on the 3D gesture. The gesture sensing unit includes a first light-emitting unit for emitting a first group of rays along a first optical path, a second light-emitting unit for emitting a second group of rays along a second optical path, and a light-receiving unit for receiving a first group of reflected rays formed when the first group of rays is reflected by the object and a second group of reflected rays formed when the second group of rays is reflected by the object.
    Type: Application
    Filed: April 25, 2017
    Publication date: October 26, 2017
    Inventors: Jinho YOUN, Jaehyeuck CHOI, Hyokune HWANG
  • Patent number: 9696852
    Abstract: An electronic device having a function for sensing 2D and 3D touch which includes a display unit; a bezel frame unit; a plurality of light emitting units; a plurality of light receiving units; a light isolation unit configured to isolate a first light for sensing 2D touch and a second light for sensing 3D touch from the lights incident thereon from the light emitting units; a driving control unit configured to sequentially operate the plurality of the light emitting units; and a motion recognition unit configured to calculate a horizontal coordinate based on the quantity of the first light, to calculate a spatial coordinate based on the quantity of the second light, to extract a motion of the pointer based on the detected quantity of the light and to implement an operation corresponding to the extracted motion.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: July 4, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinho Youn, Hyokune Hwang, Jaecheon Sa, Munchae Joung, Sunuk Kim, Youngjun Cho, Jaehyeuck Choi, Seungjae Shin
  • Publication number: 20150378463
    Abstract: An electronic device having a function for sensing 2D and 3D touch which includes a display unit; a bezel frame unit; a plurality of light emitting units; a plurality of light receiving units; a light isolation unit configured to isolate a first light for sensing 2D touch and a second light for sensing 3D touch from the lights incident thereon from the light emitting units; a driving control unit configured to sequentially operate the plurality of the light emitting units; and a motion recognition unit configured to calculate a horizontal coordinate based on the quantity of the first light, to calculate a spatial coordinate based on the quantity of the second light, to extract a motion of the pointer based on the detected quantity of the light and to implement an operation corresponding to the extracted motion.
    Type: Application
    Filed: March 26, 2015
    Publication date: December 31, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Jinho YOUN, Hyokune HWANG, Jaecheon SA, Munchae JOUNG, Sunuk KIM, Youngjun CHO, Jaehyeuck CHOI, Seungjae SHIN