Patents by Inventor Chul Kweon

Chul Kweon 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).

  • Signal detecting system of multi wide capacitive touch-screen
    Patent number: 9372560
    Abstract: The present invention relates to a signal detection system of a touch screen, and more particularly to a signal detection system of a large-sized mutual capacitive multi touch screen that is capable of effectively reducing RC time delay, signal distortion, an effect of noise, parasitic resistance, and parasitic capacitance.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: June 21, 2016
    Assignee: IKAIST CO., LTD.
    Inventors: Gyu Hyeong Cho, Sang Hui Park, Gyu Ha Cho, Chul Kweon, Joo Yeong Yoon, Sung Jin Kim, Soo Hyun Park
  • SIGNAL DETECTING SYSTEM OF MULTI WIDE CAPACITIVE TOUCH-SCREEN
    Publication number: 20130278555
    Abstract: The present invention relates to a signal detection system of a touch screen, and more particularly to a signal detection system of a large-sized mutual capacitive multi touch screen that is capable of effectively reducing RC time delay, signal distortion, an effect of noise, parasitic resistance, and parasitic capacitance.
    Type: Application
    Filed: April 18, 2013
    Publication date: October 24, 2013
    Inventors: Gyu Hyeong CHO, Sang Hui PARK, Gyu Ha CHO, Chul KWEON, Joo Yeong YOON, Sung Jin KIM, Soo Hyun PARK
  • Touch screen using infrared camera hardly affected by external disturbance light
    Patent number: 8139046
    Abstract: A touch screen using infrared cameras hardly affected by external disturbance light includes an infrared radiation base having a plurality of infrared emitting elements and the infrared cameras, thereby preventing malfunction resulting from the external disturbance light. The touch screen includes a body having a screen part to which an image is output, an infrared radiation base having a plurality of infrared emitting elements and disposed around the screen part in transverse and longitudinal directions, and infrared cameras receiving the infrared light emitted from the infrared emitting elements of the infrared radiation base and detecting the position of an object touched on the screen part according to whether or not the infrared light emitted from each infrared emitting element is received.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: March 20, 2012
    Assignees: Combustec Co., Ltd
    Inventors: Chul Kweon, Joo-Yeong Yoon
  • Touch screen using infrared camera hardly affected by external distrubance light
    Publication number: 20090066671
    Abstract: A touch screen using infrared cameras hardly affected by external disturbance light includes an infrared radiation base having a plurality of infrared emitting elements and the infrared cameras, thereby preventing malfunction resulting from the external disturbance light. The touch screen includes a body having a screen part to which an image is output, an infrared radiation base having a plurality of infrared emitting elements and disposed around the screen part in transverse and longitudinal directions, and infrared cameras receiving the infrared light emitted from the infrared emitting elements of the infrared radiation base and detecting the position of an object touched on the screen part according to whether or not the infrared light emitted from each infrared emitting element is received.
    Type: Application
    Filed: September 10, 2008
    Publication date: March 12, 2009
    Inventors: Chul Kweon, Joo-Yeong Yoon