Patents by Inventor Chang-Sin Park

Chang-Sin Park 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: 11961223
    Abstract: An apparatus for predicting performance of a wheel in a vehicle: includes a learning device that generates a latent space for a plurality of two-dimensional (2D) wheel images based on a convolutional autoencoder (CAE), extracts a predetermined number of the plurality of 2D wheel images from the latent space, and learns a dataset having the plurality of 2D wheel images and performance values corresponding to the plurality of 2D wheel images; and a controller that predicts performance for the plurality of 2D wheel images based on a performance prediction model obtained by the learning device.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: April 16, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SOOKMYUNG WOMEN'S UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jong Ho Park, Chang Gon Kim, Chul Woo Jung, Sang Min Lee, Min Kyoo Kang, Ji Un Lee, Kwang Hyeon Hwang, Nam Woo Kang, So Young Yoo, Seong Sin Kim, Sung Hee Lee
  • Patent number: 7049764
    Abstract: An electrodeless lighting apparatus using microwave and a method for controlling its power can lengthen lifetimes of the magnetron by constantly maintaining power applied to a magnetron of the electrodeless lighting apparatus using microwave. Therefore, when inputted AC voltage is changed, and thus oscillation current applied to a filament of the magnetron is changed, a rate of variability of voltage of the inputted AC power is compensated so that voltage and current applied to the magnetron is constantly maintained.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: May 23, 2006
    Assignee: LG Electronics Inc.
    Inventor: Chang-Sin Park
  • Publication number: 20050035721
    Abstract: An electrodeless lighting apparatus using microwave and a method for controlling its power can lengthen lifetimes of the magnetron by constantly maintaining power applied to a magnetron of the electrodeless lighting apparatus using microwave. Therefore, when inputted AC voltage is changed, and thus oscillation current applied to a filament of the magnetron is changed, a rate of variability of voltage of the inputted AC power is compensated so that voltage and current applied to the magnetron is constantly maintained.
    Type: Application
    Filed: January 29, 2004
    Publication date: February 17, 2005
    Inventor: Chang-Sin Park
  • Patent number: 6677717
    Abstract: A power supply apparatus of a lighting system using microwave includes: a high voltage transformer for transforming a general AC power to an AC power of high voltage and outputting the high voltage AC power; and a voltage doubler unit for transforming the high voltage AC power into a high voltage DC power, increasing the frequency of the current of the DC power, and outputting the DC power having the increased frequency. Since the frequency of the power applied to the magnetron is increased to remove the flicker phenomenon, a stable light can be radiated to an external space.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: January 13, 2004
    Assignee: LG Electronics Inc.
    Inventor: Chang-Sin Park
  • Patent number: 6661183
    Abstract: An apparatus and method for intercepting leakage of microwave includes an electrodeless bulb for generating light by microwave generated from a magnetron, a sensing unit installed outside the resonator for intercepting the microwave, for passing light generated in the electrodeless bulb and outputting a corresponding sensing signal by sensing at real time whether the microwave is leaked and a control unit for turning on or off a power supplied to the magnetron by the sensing signal, thus to prevent a fire by leakage of the microwave and secure safety of a user by intercepting the microwave leaked by damage of the resonator of the lighting apparatus using the microwave.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: December 9, 2003
    Assignee: LG Electronics Inc.
    Inventors: Chang-Sin Park, Hyoun-Soo Hea
  • Publication number: 20030164688
    Abstract: A power supply apparatus of a fighting system using microwave includes: a high voltage transformer for transforming a general AC power to an AC power of high voltage and outputting the high voltage AC power; and a voltage doubler unit for transforming the high voltage AC power into a high voltage DC power, increasing the frequency of the current of the DC power, and outputting the DC power having the increased frequency. Since the frequency of the power applied to the magnetron is increased to remove the flicker phenomenon, a stable light can be radiated to an external space.
    Type: Application
    Filed: April 8, 2002
    Publication date: September 4, 2003
    Applicant: LG Electronics Inc.
    Inventor: Chang-Sin Park
  • Publication number: 20030062852
    Abstract: An apparatus and method for intercepting leakage of microwave includes an electrodeless bulb for generating light by microwave generated from a magnetron, a sensing unit installed outside the resonator for intercepting the microwave, for passing light generated in the electrodeless bulb and outputting a corresponding sensing signal by sensing at real time whether the microwave is leaked and a control unit for turning on or off a power supplied to the magnetron by the sensing signal, thus to prevent a fire by leakage of the microwave and secure safety of a user by intercepting the microwave leaked by damage of the resonator of the lighting apparatus using the microwave.
    Type: Application
    Filed: April 11, 2002
    Publication date: April 3, 2003
    Applicant: LG Electronics Inc.
    Inventors: Chang-Sin Park, Hyoun-Soo Hea