Patents by Inventor David Hyunchul Shim

David Hyunchul Shim 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: 20230150498
    Abstract: An autonomous driving device includes an execution network configured to determine a target speed of a driving vehicle according to state information history including a plurality of state information for road environment. The plurality of state information are generated at a plurality of times. The execution network includes a spatial attention network configured to receive the state information history and to generate feature data reflecting spatial importance based on the state information history; and a temporal attention network configured to determine the target speed of the driving vehicle by applying temporal importance to an output of the spatial attention network.
    Type: Application
    Filed: October 3, 2022
    Publication date: May 18, 2023
    Inventors: Hyunki SEONG, Chanyoung Jung, Seungwook Lee, David Hyunchul Shim
  • Patent number: 7253987
    Abstract: A servo system includes a first member and a second member that is positionable relative to the first member. A position error signal causes the second member to be positioned at a desired location relative to the first member. The position error signal includes a position error due to a disturbance in the servo system, and the position error is reduced by attenuation of a disturbance signal as a non-linear function of the amplitude of the disturbance signal.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: August 7, 2007
    Assignee: Maxtor Corporation
    Inventors: David Hyunchul Shim, Jong-Min Lin, Lin Guo