Patents by Inventor Shane Baik

Shane Baik 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).

  • Reference voltage generating circuit and LED driver circuit having the same therein
    Patent number: 8686652
    Abstract: A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit and a light-emitting diode (LED) driver circuit are provided. A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit includes a voltage measurer configured to sequentially measure feedback voltages of a plurality of LED arrays, the LED arrays being connected to one another in parallel, a quantizer configured to search for one of the plurality of LED arrays having a lowest feedback voltage of the measured feedback voltages, a comparator configured to compare an output of the voltage measurer with a preset comparison voltage to generate a reference voltage, and a timing controller configured to control the comparator to output the generated reference voltage corresponding to the one of the plurality of LED arrays.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: April 1, 2014
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Du-su Shin, Shane Baik, Chang-sik Lim
  • REFERENCE VOLTAGE GENERATING CIRCUIT AND LED DRIVER CIRCUIT HAVING THE SAME THEREIN
    Publication number: 20120153848
    Abstract: A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit and a light-emitting diode (LED) driver circuit are provided. A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit includes a voltage measurer configured to sequentially measure feedback voltages of a plurality of LED arrays, the LED arrays being connected to one another in parallel, a quantizer configured to search for one of the plurality of LED arrays having a lowest feedback voltage of the measured feedback voltages, a comparator configured to compare an output of the voltage measurer with a preset comparison voltage to generate a reference voltage, and a timing controller configured to control the comparator to output the generated reference voltage corresponding to the one of the plurality of LED arrays.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 21, 2012
    Applicant: MAGNACHIP SEMICONDUCTOR, LTD.
    Inventors: Du-su Shin, Shane Baik, Chang-sik Lim