Patents by Inventor MYUNGLAE CHU

MYUNGLAE CHU 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: 20220286636
    Abstract: An image sensor device includes a pixel array, including digital pixels, and a pixel driver including a high-speed scanner that generates reset enable signals and signal enable signals. Each of the digital pixels includes a photo detector, a comparator, and a memory circuit. The high-speed scanner includes a first flip-flop and a second flip-flop. The first flip-flop receives a clock signal and a read trigger signal and outputs a first reset enable signal of the reset enable signals. The second flip-flop receives the clock signal and the first reset enable signal and outputs a first signal enable signal of the signal enable signals. The pixel array outputs a reset sampling value stored in the memory circuit in response to the first reset enable signal and outputs a signal sampling value stored in the memory circuit in response to the first signal enable signal.
    Type: Application
    Filed: November 26, 2021
    Publication date: September 8, 2022
    Inventors: MINWOONG SEO, MYUNGLAE CHU, HYUNYONG JUNG
  • Publication number: 20200404207
    Abstract: A pixel array includes a plurality of pixels. Each of the pixels includes a photoelectric element formed on a substrate and that generates charge from light, and a pixel circuit formed between the photoelectric element and the substrate and that outputs a digital signal value based on an amount of the generated charge. The pixel circuit includes a floating diffusion formed in the substrate and that stores the charge therein, a vertical pixel electrode that connects the floating diffusion to the photoelectric element and extends in a direction perpendicular to the substrate, an analog-to-digital converter that converts an electric potential of the floating diffusion into the digital signal value, and a memory element that stores the digital signal value.
    Type: Application
    Filed: February 26, 2020
    Publication date: December 24, 2020
    Inventors: MYUNGLAE CHU, MINWOONG SEO, JUNGCHAK AHN, TAEYON LEE
  • Publication number: 20200396401
    Abstract: The complementary metal oxide (CMOS) image sensor CIS includes a plurality of pixels arranged in a two-dimensional (2D) array and each including a photodiode, a plurality of analog-to-digital converters (ADCs) configured to perform auto exposure in units of the pixels, and a readout circuit configured to read pixel signals of the pixels, in rows. The plurality of pixels and the plurality of ADCs are the same in number and are connected in a one-to-one correspondence to each other. Each of the plurality of ADCs performs AE on a corresponding one of the pixels.
    Type: Application
    Filed: January 13, 2020
    Publication date: December 17, 2020
    Inventors: MYUNGLAE CHU, Minwoong Seo