Patents by Inventor Jaeduk Han

Jaeduk Han 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: 10193540
    Abstract: An apparatus and method and system therefor relates generally to decision threshold control. In such an apparatus, an ac-coupler circuit is configured as a high-pass circuit path for a first frequency range. A buffer amplifier circuit is coupled in parallel with the ac-coupler circuit. The buffer amplifier circuit is configured as a low-pass circuit path for a second frequency range. An offset injection circuit is coupled to both the ac-coupler circuit and the buffer amplifier circuit and configured to inject an offset.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: January 29, 2019
    Assignee: XILINX, INC.
    Inventors: Jaeduk Han, Hsung Jai Im
  • Patent number: 9101016
    Abstract: Disclosed is a light emitting diode (LED) illuminating apparatus having enhanced stability of the quantity of light. The LED illuminating apparatus includes an LED lighting block connected to a rectified voltage and including at least one LED module, an alternative reference voltage generating block configured to detect the rectified voltage and generate an alternative reference voltage, and a switching block connected to the tap and configured to form a closed circuit including the at least one LED module. The at least one LED module includes a cathode terminal having a tap. The alternative reference voltage has a voltage level according to a root mean square (RMS) value of the rectified voltage. The amount of currents flowing through the closed circuit is controlled by the alternative reference voltage to have a negative relationship with the RMS value of the rectified voltage.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: August 4, 2015
    Assignee: TLI INC.
    Inventor: Jaeduk Han
  • Publication number: 20150084543
    Abstract: Disclosed is a light emitting diode (LED) illuminating apparatus having enhanced stability of the quantity of light. The LED illuminating apparatus includes an LED lighting block connected to a rectified voltage and including at least one LED module, an alternative reference voltage generating block configured to detect the rectified voltage and generate an alternative reference voltage, and a switching block connected to the tap and configured to form a closed circuit including the at least one LED module. The at least one LED module includes a cathode terminal having a tap. The alternative reference voltage has a voltage level according to a root mean square (RMS) value of the rectified voltage. The amount of currents flowing through the closed circuit is controlled by the alternative reference voltage to have a negative relationship with the RMS value of the rectified voltage.
    Type: Application
    Filed: January 23, 2013
    Publication date: March 26, 2015
    Applicant: TLI iNC.
    Inventor: Jaeduk Han