Patents by Inventor BUMSIK CHUNG

BUMSIK CHUNG 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: 11818484
    Abstract: An imaging device includes a light source operated by an optical control signal generated using a first reference signal having a first frequency and a second reference signal, having a second frequency different from the first frequency, a plurality of pixels, each of the plurality of pixels including a pixel circuit outputting a pixel signal corresponding to the electrical charge of a photodiode, and a logic circuit configured to generate raw data to generate a depth image, using the pixel signal. The plurality of pixels include first pixels and second pixels, and the logic circuit inputs a first photo control signal, having the first frequency, to the pixel circuit connected to a photodiode in each of the first pixels, and inputs a second photo control signal, having the second frequency, to the pixel circuit connected to a photodiode in each of the second pixels.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: November 14, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bumsik Chung, Minsun Keel, Myoungoh Ki, Daeyun Kim
  • Publication number: 20220166946
    Abstract: An imaging device includes a light source operated by an optical control signal generated using a first reference signal having a first frequency and a second reference signal, having a second frequency different from the first frequency, a plurality of pixels, each of the plurality of pixels including a pixel circuit outputting a pixel signal corresponding to the electrical charge of a photodiode, and a logic circuit configured to generate raw data to generate a depth image, using the pixel signal. The plurality of pixels include first pixels and second pixels, and the logic circuit inputs a first photo control signal, having the first frequency, to the pixel circuit connected to a photodiode in each of the first pixels, and inputs a second photo control signal, having the second frequency, to the pixel circuit connected to a photodiode in each of the second pixels.
    Type: Application
    Filed: July 21, 2021
    Publication date: May 26, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Bumsik CHUNG, Minsun KEEL, Myoungoh KI, Daeyun KIM
  • Publication number: 20220107421
    Abstract: An image sensor includes a plurality of pixels and a phase select circuit. Each pixel outputs a pixel signal corresponding to a photoelectric signal in response to a photo gate signal. The phase select circuit outputs delay clock signals of different phases from each other to an object pixel in response to different integration times from each other in a frame. The phase select circuit includes a plurality of delay circuit cells corresponding to at least some pixels of the plurality of pixels. Each of the plurality of delay circuit cells generates a delay clock signal of a certain phase difference from any one of a reference clock signal and an output signal of another delay circuit cell according to a logic state of a select signal.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 7, 2022
    Inventors: DAEYUN KIM, MINSUN KEEL, MYOUNGOH KI, YEOMYUNG KIM, MYUNGHAN BAE, BUMSIK CHUNG