Patents by Inventor Woo June Choi

Woo June Choi 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: 20230052716
    Abstract: The present disclosure relates to a method and an apparatus for measuring motility of ciliated cells in a respiratory tract. The method includes the operations of: acquiring image data including a plurality of frames of respiratory tract organoids; identifying positions of ciliated cells by performing motion-contrast imaging on the image data; when a region of interest (ROI) related to the position of the ciliated cells is selected, measuring a ciliary beat frequency (CBF) related to motility of cilia included in the selected region of interest using cross-correlation between the plurality of frames; and expressing the cilia included in the region of interest in a preset display method on the basis of the range of the measured ciliary beat frequency.
    Type: Application
    Filed: July 11, 2022
    Publication date: February 16, 2023
    Applicant: CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
    Inventors: Jun Ki KIM, Woo June CHOI
  • Publication number: 20200342897
    Abstract: The present invention provides a method, a system, and a program for detecting snoring through a sleeper's sound. A method for detecting snoring according to the present invention comprises the steps of: collecting a sound; charging or discharging a capacitor due to the collected sound; detecting a variance of a capacitance of the capacitor; and determining whether a sleeper snores, on the basis of a result of the detection.
    Type: Application
    Filed: July 8, 2020
    Publication date: October 29, 2020
    Applicant: MAETEL CO., LTD.
    Inventors: Key JEONG, Seung Yo KIM, Woo June CHOI, Je Hui LEE
  • Publication number: 20200187685
    Abstract: A pillow for automatically adjusting a height of the pillow is provided. The pillow includes a pillow cover including a pressure sensor to sense pressure applied when a user puts a head of the user on the pillow, a plurality of air pockets positioned inside the pillow cover, an air injection unit to adjust an amount of air inside the air pocket, and a controller. The control unit senses pressure of a contact region between a body of the user and the pillow cover when the user puts the head of the user on the pillow, and controls the air injection unit to adjust the air amount inside at least one of the plurality of air pockets such that distribution of the pressure of the contact region is within a preset range, when the distribution of the pressure of the contact region is out of the preset range.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 18, 2020
    Applicant: MAETEL CO., LTD.
    Inventors: Key JEONG, Seung Yo KIM, Woo June CHOI, Je Hui LEE
  • Patent number: 9933376
    Abstract: The present invention provides a method for analyzing defects by using heat distribution measurement, comprising: a sample loading unit for loading a sample to check whether or not there is a defect through heat distribution characteristics; a light source for radiating visible light onto the sample; a power supply unit for generating a driving signal in order to periodically heat the sample; a detection unit for detecting reflected light from the surface of the sample; and a signal generator for synchronizing the detection unit with the driving signal of the power supply unit.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: April 3, 2018
    Assignee: Korea Basic Science Institute
    Inventors: Ki Soo Chang, Seon Young Ryu, Woo June Choi, Geon Hee Kim
  • Publication number: 20160007857
    Abstract: Systems and methods of forming optical coherence tomography (OCT) images of tissue near a cavity of subject are disclosed herein. In one embodiment, a method of forming an image includes transmitting light pulses toward a region of interest near the cavity and receiving light backscattered from the region of interest using an imaging probe. The imaging probe includes a nosepiece configured to be at least partially received into the cavity. An image of the region of interest is formed using the backscattered light received from the region of interest.
    Type: Application
    Filed: July 10, 2015
    Publication date: January 14, 2016
    Inventors: Ruikang K. Wang, Woo June Choi
  • Publication number: 20150316496
    Abstract: The present invention provides a method for analyzing defects by using heat distribution measurement, comprising: a sample loading unit for loading a sample to check whether or not there is a defect through heat distribution characteristics; a light source for radiating visible light onto the sample; a power supply unit for generating a driving signal in order to periodically heat the sample; a detection unit for detecting reflected light from the surface of the sample; and a signal generator for synchronizing the detection unit with the driving signal of the power supply unit.
    Type: Application
    Filed: November 26, 2013
    Publication date: November 5, 2015
    Inventors: Ki Soo Chang, Seon Young Ryu, Woo June Choi, Geon Hee Kim
  • Publication number: 20120194661
    Abstract: The present invention relates to a spectral domain optical coherence tomography apparatus having an endoscopic small-sized probe, and more particularly, to a technology imaging an external shape or an internal structure of a sample by a non-contact and non-invasive method by applying an optical coherent fiber bundle probe attached with a lens to Michelson interferometer or a Fizeau interferometer.
    Type: Application
    Filed: November 14, 2011
    Publication date: August 2, 2012
    Applicant: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Byeongha Lee, Jonghyun Eom, Woo June Choi, Eun Jung Min