Patents by Inventor Kyung Jun Choi

Kyung Jun 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).

  • Patent number: 10792806
    Abstract: In a driving device of an artificial muscle module and a driving method thereof, the driving device includes a fluid tank unit, a fluid providing line, a fluid collecting line, a circulation pump unit, a temp control unit and a fluid distributing unit. The fluid providing line includes high temp and low temp water tanks. The fluid providing line connects a first side of the artificial muscle module to the fluid tank unit. The fluid collecting line connects a second side of the artificial muscle module to the fluid tank unit. The circulation pump unit is positioned at least one of the fluid providing line and the fluid collecting line. The temp control unit controls temperature of the fluid. The fluid distributing unit is positioned at the fluid collecting line, and distributes the fluid in the fluid collecting line.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: October 6, 2020
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Cheol-hoon Park, Young-su Son, Sang-yong Ham, Sang-kyu Choi, Doo-euy Hong, Kyung-jun Choi, Seong-joon Park
  • Patent number: 10477564
    Abstract: A scheduling apparatus and method are disclosed. An embodiment of the invention provides a scheduling apparatus that includes: a scheduling group classification unit that classifies user terminals located within a serving cell of a base station into a multiple number of scheduling groups by using large-scale fading information of the user terminals; a transmission power setting unit that sets the transmission power of the user terminals for each of the classified scheduling groups; a scheduling period setting unit that sets the scheduling period for each of the scheduling groups by determining a resource element usage proportion for each of the scheduling groups based on the data rate of each of the scheduling groups and determining the data rate expected for all user terminals; and a resource element allocation unit that allocates resource elements used for each of the scheduling groups according to each of the determined scheduling periods.
    Type: Grant
    Filed: June 10, 2017
    Date of Patent: November 12, 2019
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Kwang-Soon Kim, Kyung Jun Choi
  • Publication number: 20190152052
    Abstract: In a driving device of an artificial muscle module and a driving method thereof, the driving device includes a fluid tank unit, a fluid providing line, a fluid collecting line, a circulation pump unit, a temp control unit and a fluid distributing unit. The fluid providing line includes high temp and low temp water tanks. The fluid providing line connects a first side of the artificial muscle module to the fluid tank unit. The fluid collecting line connects a second side of the artificial muscle module to the fluid tank unit. The circulation pump unit is positioned at least one of the fluid providing line and the fluid collecting line. The temp control unit controls temperature of the fluid. The fluid distributing unit is positioned at the fluid collecting line, and distributes the fluid in the fluid collecting line.
    Type: Application
    Filed: November 30, 2017
    Publication date: May 23, 2019
    Inventors: Cheol-hoon PARK, Young-su SON, Sang-yong HAM, Sang-kyu CHOI, Doo-euy HONG, Kyung-jun CHOI, Seong-joon PARK
  • Publication number: 20170367105
    Abstract: A scheduling apparatus and method are disclosed. An embodiment of the invention provides a scheduling apparatus that includes: a scheduling group classification unit that classifies user terminals located within a serving cell of a base station into a multiple number of scheduling groups by using large-scale fading information of the user terminals; a transmission power setting unit that sets the transmission power of the user terminals for each of the classified scheduling groups; a scheduling period setting unit that sets the scheduling period for each of the scheduling groups by determining a resource element usage proportion for each of the scheduling groups based on the data rate of each of the scheduling groups and determining the data rate expected for all user terminals; and a resource element allocation unit that allocates resource elements used for each of the scheduling groups according to each of the determined scheduling periods.
    Type: Application
    Filed: June 10, 2017
    Publication date: December 21, 2017
    Inventors: Kwang-Soon KIM, Kyung Jun CHOI
  • Patent number: 9543655
    Abstract: Provided is an antenna structure which is capable of having sufficient antenna performance even in an antenna having a small cross-sectional area. The antenna of the present invention comprises: a ferrite sheet; and an antenna sheet (flexible printed circuit board) which has a spiral loop antenna pattern. The antenna sheet is folded and the ferrite sheet is inserted therein to form a folded antenna. The folded antenna is configured in such a manner that a longitudinal pattern of the spiral loop antenna pattern is disposed close to a longitudinal centerline portion of the ferrite sheet.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: January 10, 2017
    Assignee: AQ CORPORATION
    Inventors: Sang Hoon Lee, Kyung Jun Choi
  • Publication number: 20150035717
    Abstract: Provided is an antenna structure which is capable of having sufficient antenna performance even in an antenna having a small cross-sectional area. The antenna of the present invention comprises: a ferrite sheet; and an antenna sheet (flexible printed circuit board) which has a spiral loop antenna pattern. The antenna sheet is folded and the ferrite sheet is inserted therein to form a folded antenna. The folded antenna is configured in such a manner that a longitudinal pattern of the spiral loop antenna pattern is disposed close to a longitudinal centerline portion of the ferrite sheet.
    Type: Application
    Filed: December 18, 2012
    Publication date: February 5, 2015
    Inventors: Sang Hoon Lee, Kyung Jun Choi