Patents by Inventor Ho-Hwan Han

Ho-Hwan Han 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: 20240127627
    Abstract: Disclosed herein is an apparatus and method for detecting an emotional change through facial expression analysis. The apparatus for detecting an emotional change through facial expression analysis includes a memory having at least one program recorded thereon, and a processor configured to execute the program, wherein the program includes a camera image acquisition unit configured to acquire a moving image including at least one person, a preprocessing unit configured to extract a face image of a user from the moving image and preprocess the extracted face image, a facial expression analysis unit configured to extract a facial expression vector from the face image of the user and cumulatively store the facial expression vector, and an emotional change analysis unit configured to detect a temporal location of a sudden emotional change by analyzing an emotion signal extracted based on cumulatively stored facial expression vector values.
    Type: Application
    Filed: October 11, 2023
    Publication date: April 18, 2024
    Inventors: Byung-Ok HAN, Ho-Won KIM, Jang-Hee YOO, Cheol-Hwan YOO, Jae-Yoon JANG
  • Patent number: 6891455
    Abstract: A gravity control apparatus is provided, in which is controlled through the superconducting coil designed for generating uniform magnetic force. The gravity control apparatus includes a hollow cylindrical low temperature container; a combination of B0 coil and a symmetric and/or asymmetric gradient magnetic field generating coil having a predetermined length and inner and outer radiuses, wherein each of B0 coil and gradient magnetic field generating coil is wound onto a bobbin which is installed to the low temperature container so as to form a superconducting magnet, and the B0 coil has three solenoid coils which are arrayed in three parts with a predetermined spacing so as to generate, from the center of the B0 coil, uniform magnetic field having constant magnetic flux density; and a power unit for supplying operating current to each of coils. Thus, gravity acting on the material disposed in the hollow center of the low temperature container can be compensated with a uniform magnetic force.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: May 10, 2005
    Assignee: Duksung Co., Ltd.
    Inventors: Hong-Beom Jin, Ki-Deok Sim, Byeung-Sang Park, Hyung-Jin Kim, Ho-Hwan Han, Kyung-Han Kim, Suk-Jin Choi
  • Publication number: 20050040921
    Abstract: A gravity control apparatus is provided, in which gravity is controlled through the superconducting coil designed for generating uniform magnetic force. The gravity control apparatus includes a hollow cylindrical low temperature container; a combination of B0 coil and a symmetric and/or asymmetric gradient magnetic field generating coil having a predetermined length and inner and outer radiuses, wherein each of B0 coil and gradient magnetic field generating coil is wound onto a bobbin which is installed to the low temperature container so as to form a superconducting magnet, and the B0 coil has three solenoid coils which are arrayed in three parts with a predetermined spacing so as to generate, from the center of the B0 coil, uniform magnetic field having constant magnetic flux density; and a power unit for supplying operating current to each of coils. Thus, gravity acting on the material disposed in the hollow center of the low temperature container can be compensated with a uniform magnetic force.
    Type: Application
    Filed: September 17, 2001
    Publication date: February 24, 2005
    Inventors: Hong-Beom Jin, Ki-Deok Sim, Byeung-Sang Park, Hyung-Jin Kim, Ho-Hwan Han, Kyung-Han Kim