Patents by Inventor Chang Hyun Jun

Chang Hyun Jun 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: 9727978
    Abstract: A method is provided for extracting outer space feature information from spatial geometric data. The method comprises: an input step S10 of inputting spatial geometric data for a target region; a sampling step S20 of determining a sample by selecting an arbitrary area for the spatial geometric data input in the input step using a preset selection method; a feature extraction step S30 of acquiring feature information for a corresponding sampling plane using a convex hull method based on sampling information including sampling plane information of the spatial geometric data for a sampling plane selected in the sampling step. The sampling step and the feature extraction step are repeatedly performed in a preset manner.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: August 8, 2017
    Assignee: Korea University Research and Business Foundation
    Inventors: Chang Hyun Jun, Nakju Lett Doh
  • Publication number: 20160328862
    Abstract: A method method is provided for extracting outer space feature information from spatial geometric data. The method comprises: an input step S10 of inputting spatial geometric data for a target region; a sampling step S20 of determining a sample by selecting an arbitrary area for the spatial geometric data input in the input step using a preset selection method; a feature extraction step S30 of acquiring feature information for a corresponding sampling plane using a convex hull method based on sampling information including sampling plane information of the spatial geometric data for a sampling plane selected in the sampling step. The sampling step and the feature extraction step are repeatedly performed in a preset manner.
    Type: Application
    Filed: September 9, 2015
    Publication date: November 10, 2016
    Applicant: Korea University Research and Business Foundation
    Inventors: Chang Hyun Jun, Nakju Lett Doh
  • Patent number: 8523254
    Abstract: A robot hand with a connection part that undergoes stretching deformation according to object shape. The robot hand includes a variable connection device that provides a contact face that enables pressing and contacting a moving target and has a connection part in contact with the moving target enables stretching deformation; a connection length controller that interfaces with a drive part to stretch and deform the connection part so that the connection part undergoes conversion between a closed-loop state wherein it is continuous with the surface of the moving target or divided into a plurality of sections to be pressed and contacted, and an open-loop state wherein it detaches from the moving target; and a shape retention device that retains the shape of the variable connection device consistently in a closed-loop state wherein the variable connection device is pressed and contacted with the moving target at a set pressure.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: September 3, 2013
    Assignee: Korea University Research and Business Foundation
    Inventors: Nak Ju Doh, Jingfu Jin, Chang Joo Nam, Young Hoon Lee, Shang Li Yuen, Chang Hyun Jun
  • Publication number: 20110254303
    Abstract: The present invention relates to a robot hand with a connection part that undergoes stretching deformation according to object shape and a method for controlling a robot hand; the key technical point pertains to a robot hand with a connection part that undergoes stretching deformation according to object shape, comprising: a variable connection device (100) that provides a contact face that enables pressing and contacting a moving target (10) and has a structure wherein a connection part (100a) in contact with said moving target (10) enables stretching deformation; a connection length controller (200) that interfaces with a drive part such as a motor (201) or pump to stretch and deform the connection part (100a) of said variable connection device so that the connection part (100a) of said variable connection device undergoes conversion between a closed-loop state wherein it is continuous with the surface of said moving target (10) or divided into a plurality of sections to be pressed and contacted, and an ope
    Type: Application
    Filed: July 17, 2009
    Publication date: October 20, 2011
    Inventors: Nak Ju Doh, Jingfu Jin, Chang Joo Nam, Young Hoon Lee, Shang Li Yuen, Chang Hyun Jun