Patents by Inventor Chang Hwan Cho

Chang Hwan Cho 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: 20240155250
    Abstract: Disclosed are a method for testing a mobile electronic device in an automated device, and a mobile electronic device test system. According to an embodiment of the present invention, a method for testing a mobile electronic device in an automated device may include the steps of: forming a photographing area by a camera mounted to a photographing box, in a camera part; moving a mobile electronic device, which is input through an inlet of the automated device, to the photographing area by a position alignment part; and as the mobile electronic device is moved to the photographing area, controlling the camera by a control part such that photographing is performed on a specific region of the mobile electronic device, so as to inspect the specific region through a generated photographing image.
    Type: Application
    Filed: April 13, 2022
    Publication date: May 9, 2024
    Inventors: Chang Hwan Ji, Sung Lack Cho
  • Publication number: 20240098382
    Abstract: An image processing device including: a decision pixel manager for setting a decision area for a defect candidate pixel, and determining a first decision pixel and a second decision pixel, based on first phase information of pixels included in the decision area with respect to a first modulation frequency of a sensing light source among the pixels; a target pixel determiner for calculating a phase difference between the first decision pixel and the second decision pixel, based on second phase information of the pixels with respect to a second modulation frequency of the sensing light source, and determining the defect candidate pixel as a target pixel, corresponding to that the phase difference exceeds a predetermined reference value; and a phase corrector for changing a phase of the target pixel, based on the phase difference.
    Type: Application
    Filed: February 28, 2023
    Publication date: March 21, 2024
    Applicant: SK hynix Inc.
    Inventors: Woo Young JEONG, Ja Min KOO, Tae Hyun KIM, Jae Hwan JEON, Chang Hun CHO
  • Patent number: 9581344
    Abstract: A dehumidifier including an evaporator, a condenser, and a fan arranged in a main body. The fan includes a first blowing part to blow air having passed through both the evaporator and the condenser, and a second blowing part to selectively blow any one of air having passed through both the condenser and the evaporator and air having passed through only the evaporator. The dehumidifier may additionally function to supply cold air.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: February 28, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Hwan Cho, In Chul Yun, Ki Sup Lee
  • Publication number: 20150013371
    Abstract: A dehumidifier including an evaporator, a condenser, and a fan arranged in a main body. The fan includes a first blowing part to blow air having passed through both the evaporator and the condenser, and a second blowing part to selectively blow any one of air having passed through both the condenser and the evaporator and air having passed through only the evaporator. The dehumidifier may additionally function to supply cold air.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 15, 2015
    Inventors: Chang Hwan CHO, In Chul Yun, Ki Sup Lee
  • Patent number: 7633883
    Abstract: Disclosed are system and method for controlling a network traffic. According to the invention, all switches connected with the same VLAN are allowed to share an inherent ID of each switch, a port ID connecting the switches and information about a bandwidth so as to calculate an optimized path that each switch is connected to other switches. For doing so, each switch is systematically structured to comprise a computation module capable of structuring a neighbor relation with other switches, a computation module capable of exchanging/sharing the switch state D/B with the other switches, and synchronizing a corresponding switch state D/B, a computation module capable of creating/updating a switching table, and a computation module capable of switching and flooding a received data frame through an optimized path with reference to the created/updated switching table.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: December 15, 2009
    Inventors: Chang Hwan Cho, Tae Boong Jeon
  • Publication number: 20060291480
    Abstract: Disclosed are system and method for controlling a network traffic. According to the invention, all switches connected with the same VLAN are allowed to share an inherent ID of each switch, a port ID connecting the switches and information about a bandwidth so as to calculate an optimized path that each switch is connected to other switches. For doing so, each switch is systematically structured to comprise a computation module capable of structuring a neighbor relation with other switches, a computation module capable of exchanging/sharing the switch state D/B with the other switches, and synchronizing a corresponding switch state D/B, a computation module capable of creating/updating a switching table, and a computation module capable of switching and flooding a received data frame through an optimized path with reference to the created/updated switching table.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 28, 2006
    Inventors: Chang Hwan Cho, Tae Boong Jeon