Patents by Inventor Junsoo KO

Junsoo KO 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).

  • Publication number: 20260155073
    Abstract: A data driver includes a shift register block which generates enable signals based on a data clock signal, a gating signal generating block which generates gating signals, a data transmission block including data gating circuits which receives a data signal and transmits the data signal to a latch block, and the latch block which stores the data signal based on the enable signals. Each of the data gating circuits includes data transmission paths and determines a target transmission path, which transmits the data signal to the latch block, among the data transmission paths based on the gating signals.
    Type: Application
    Filed: December 1, 2025
    Publication date: June 4, 2026
    Inventors: Mungyu KIM, Jaemyung LIM, Junsoo KO, Chankeun KWON, Hyungseup KIM, GICHANG LEE, Junhyuk JANG, Seoyeong JEONG
  • Publication number: 20260112322
    Abstract: A data driver of a display device includes first through N-th data latches, where N is an integer greater than 1, first through (N+1)-th channel circuits, a first multiplexer connected between the first through N-th data latches and the first through (N+1)-th channel circuits, and a second multiplexer connected between the first through (N+1)-th channel circuits and first through N-th data lines. In a first period, the first multiplexer connects the first through N-th data latches to the first through N-th channel circuits, respectively, and the second multiplexer connects the first through N-th data lines to the first through N-th channel circuits, respectively. In a second period, the first multiplexer connects the first through N-th data latches to second through (N+1)-th channel circuits, respectively, and the second multiplexer connects the first through N-th data lines to the second through (N+1)-th channel circuits, respectively.
    Type: Application
    Filed: June 25, 2025
    Publication date: April 23, 2026
    Inventors: Mungyu Kim, SANG YONG NO, Junsoo Ko, Chankeun Kwon, Hyungseup Kim, Chanyeop Ahn, GICHANG LEE
  • Publication number: 20250273171
    Abstract: A data driving circuit of a display device includes a digital-analog converter which includes a gamma reference voltage generator to output gamma reference voltages in response to a first-group signal of a digital signal, and a voltage selector to output, as a gamma selection voltage, one of the gamma reference voltages in response to a second-group signal of the digital signal. The data driving circuit also includes a first amplifier to receive the gamma selection voltage and to output a first conversion voltage, a boosting circuit to convert the first conversion voltage into a second conversion voltage in response to the first-group signal of the digital signal, and a second amplifier to receive the second conversion voltage and to output an analog signal.
    Type: Application
    Filed: December 11, 2024
    Publication date: August 28, 2025
    Inventors: SUNGHO PARK, Jaemyung LIM, Junsoo KO, Mungyu KIM, Hojun KIM, Nokyung PARK, Han-Byul LIM
  • Patent number: 9735788
    Abstract: Provided is a phase locked loop (PLL) that generates an output clock signal corresponding to a reference clock signal, the PLL including a first phase interpolator configured to generate a first interpolator clock signal that has a first time delay from the output clock signal and a second phase interpolator configured to generate a second interpolator clock signal that has a second time delay from the output clock signal. The PLL controls a frequency of the output clock signal based on a multiplexing the first interpolator clock signal and the second interpolator clock signal.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: August 15, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ja Yol Lee, Minjae Lee, Cheon Soo Kim, Jaehyun Kang, Junsoo Ko
  • Publication number: 20160373115
    Abstract: Provided is a phase locked loop (PLL) that generates an output clock signal corresponding to a reference clock signal, the PLL including a first phase interpolator configured to generate a first interpolator clock signal that has a first time delay from the output clock signal and a second phase interpolator configured to generate a second interpolator clock signal that has a second time delay from the output clock signal. The PLL controls a frequency of the output clock signal based on a multiplexing the first interpolator clock signal and the second interpolator clock signal.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 22, 2016
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Ja Yol LEE, Minjae LEE, Cheon Soo KIM, Jaehyun KANG, Junsoo KO