Patents by Inventor Tae Il Yun

Tae Il Yun 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).

  • Circuit for driving lighting apparatus and method thereof
    Patent number: 9521719
    Abstract: A circuit for driving a lighting apparatus is provided. The circuit includes a valley signal generator configured to generate a valley signal based on an input voltage, an input voltage determining unit configured to determine whether the input voltage corresponds to a direct voltage or a full-wave rectified AC voltage based on the valley signal, an AC voltage simulation unit configured to generate a virtual valley signal when the input voltage is a DC voltage, and a switching device controller configured to control a switching device used to drive an LED module based the determination and at least one of the valley signal and virtual valley signal.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: December 13, 2016
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Gyu Ho Lim, Tae Il Yun, Beom Seon Ryu
  • CIRCUIT FOR DRIVING LIGHTING APPARATUS AND METHOD THEREOF
    Publication number: 20160081158
    Abstract: A circuit for driving a lighting apparatus is provided. The circuit includes a valley signal generator configured to generate a valley signal based on an input voltage, an input voltage determining unit configured to determine whether the input voltage corresponds to a direct voltage or a full-wave rectified AC voltage based on the valley signal, an AC voltage simulation unit configured to generate a virtual valley signal when the input voltage is a DC voltage, and a switching device controller configured to control a switching device used to drive an LED module based the determination and at least one of the valley signal and virtual valley signal.
    Type: Application
    Filed: July 30, 2015
    Publication date: March 17, 2016
    Inventors: Gyu Ho LIM, Tae Il YUN, Beom Seon RYU
  • Method and system for providing distributed programming environment using distributed spaces, and computer readable recording medium
    Patent number: 8799619
    Abstract: Disclosed herein are a method, a system, and a computer-readable recording medium for providing distributed programming environment by using a distributed space. According to an aspect of the present invention, there is provided a method for processing data in distributed environment, the method including: generating a virtual space using resources provided by a plurality of nodes; and reading or writing data from or in the virtual space by a first application, wherein the data are mapped to a specific location region on the virtual space determined according to attributes of the data and the first application performs a reading operation or a writing operation for the data in the location region.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: August 5, 2014
    Assignee: NHN Corporation
    Inventors: Woo Hyun Kim, Du-Ho Kim, Tae Il Yun
  • Rapid coagulation-flocculation and sedimentation type waste water treatment method
    Patent number: 6447686
    Abstract: The present invention relates to a high speed coagulant-flocculant and sedimentation method for treating waste water, which permits a speedy treatment of waste water including stormwater runoff and also permits a valuable reuse of the sludge produced in the course of treatment.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: September 10, 2002
    Inventors: Chun Sik Choi, Tae Il Yun