Patents by Inventor WoonCheol Jung

WoonCheol Jung 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).

  • Adaptive elevator door dwell time
    Patent number: 11242225
    Abstract: A method of controlling an elevator door dwell time includes obtaining a predefined load weight value; obtaining a load weight value from a load weight sensor coupled to an elevator car; comparing the load weight value to the predefined load weight value to generate a difference; and adjusting the elevator door dwell time in response to the difference to define an adjusted elevator door dwell time.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: February 8, 2022
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: WoonCheol Jung, Hansoo Shim
  • ADAPTIVE ELEVATOR DOOR DWELL TIME
    Publication number: 20190284024
    Abstract: A method of controlling an elevator door dwell time includes obtaining a predefined load weight value; obtaining a load weight value from a load weight sensor coupled to an elevator car; comparing the load weight value to the predefined load weight value to generate a difference; and adjusting the elevator door dwell time in response to the difference to define an adjusted elevator door dwell time.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 19, 2019
    Inventors: WoonCheol Jung, Hansoo Shim
  • Method and apparatus for stall control of elevator door
    Patent number: 10280042
    Abstract: A method of updating a stall threshold level of an elevator door to control a door stall occurring during opening or closing of the elevator door includes determining an exceptional motion count of a door based on at least one of a speed and an acceleration of the door, determining whether the door is stalled, based on a determined exceptional motion count of the door and a preset stall threshold level of the door, and re-determining the stall threshold level of the door according to the determination of whether the door is stalled.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: May 7, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: WoonCheol Jung, Hansoo Shim
  • METHOD AND APPARATUS FOR STALL CONTROL OF ELEVATOR DOOR
    Publication number: 20180282128
    Abstract: A method of updating a stall threshold level of an elevator door to control a door stall occurring during opening or closing of the elevator door includes determining an exceptional motion count of a door based on at least one of a speed and an acceleration of the door, determining whether the door is stalled, based on a determined exceptional motion count of the door and a preset stall threshold level of the door, and re-determining the stall threshold level of the door according to the determination of whether the door is stalled.
    Type: Application
    Filed: April 4, 2017
    Publication date: October 4, 2018
    Inventors: WoonCheol Jung, Hansoo Shim