Patents by Inventor Whang Cho

Whang 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).

  • Patent number: 11215988
    Abstract: A control system includes a locomotion device that is configured to accompany a moving object such as a human operator or a robotic device. The control system is configured to control a motion of the locomotion device based on a location of at least one of the moving object relative to the locomotion device or a location of the locomotion device relative to the moving object. The control system is configured to control the locomotion device to maintain a position of the locomotion device with respect to the moving object to thereby synchronize the motion of the locomotion device with a motion of the moving object.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: January 4, 2022
    Inventors: Hanwoo Cho, Sangha Cho, Whang Cho
  • Publication number: 20210041866
    Abstract: A control system includes a locomotion device that is configured to accompany a moving object such as a human operator or a robotic device. The control system is configured to control a motion of the locomotion device based on a location of at least one of the moving object relative to the locomotion device or a location of the locomotion device relative to the moving object. The control system is configured to control the locomotion device to maintain a position of the locomotion device with respect to the moving object to thereby synchronize the motion of the locomotion device with a motion of the moving object.
    Type: Application
    Filed: August 8, 2019
    Publication date: February 11, 2021
    Inventors: Hanwoo CHO, Sangha CHO, Whang CHO
  • Patent number: 10384754
    Abstract: An azimuth thruster system includes a pod configured to rotate relative the hull of the ship about an azimuthal axis of the pod, a propeller shaft extending from the pod and being configured to rotate relative to the pod about a central axis of the propeller shaft, an outer shaft disposed at least partially in the pod and configured to be driven by a first primary prime mover, an inner shaft disposed at least partially within the outer shaft and configured to be driven by a second primary prime mover, and a pod gear unit disposed within the pod and coupled to the outer shaft, the inner shaft, and the propeller shaft. The outer and inner shafts are configured to rotate at least one of the pod and the propeller shaft based on directions and magnitudes of the torques generated by the first and second primary prime movers.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: August 20, 2019
    Inventors: Sangha Cho, Hanwoo Cho, Whang Cho
  • Publication number: 20190144092
    Abstract: An azimuth thruster system includes a pod configured to rotate relative the hull of the ship about an azimuthal axis of the pod, a propeller shaft extending from the pod and being configured to rotate relative to the pod about a central axis of the propeller shaft, an outer shaft disposed at least partially in the pod and configured to be driven by a first primary prime mover, an inner shaft disposed at least partially within the outer shaft and configured to be driven by a second primary prime mover, and a pod gear unit disposed within the pod and coupled to the outer shaft, the inner shaft, and the propeller shaft. The outer and inner shafts are configured to rotate at least one of the pod and the propeller shaft based on directions and magnitudes of the torques generated by the first and second primary prime movers.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 16, 2019
    Inventors: Sangha Cho, Hanwoo Cho, Whang Cho
  • Patent number: 8836158
    Abstract: A system for operating a horizontal axis wind turbine includes a turbine rotor and a rotor blade adapted to rotate about a horizontal axis, two vertical shafts, a plurality of gears adapted to translate a rotational motion of the turbine rotor into counter-rotating vertical rotational motions of the shafts, and two generators fixed to a tower, adapted to translate a rotational motion of the shafts into electrical power. A method of operating a horizontal axis wind turbine system includes obtaining a turbine rotor and a rotor blade adapted to rotate about a horizontal axis, obtaining two vertical shafts, obtaining a plurality of gears, and obtaining two generators fixed to a tower, translating a rotational motion of the turbine rotor into counter-rotating vertical rotational motions of the shafts using the gears, and translating a rotational motion of the shafts into electrical power using the generators.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: September 16, 2014
    Inventors: Hanwoo Cho, Whang Cho
  • Publication number: 20130277971
    Abstract: Systems and methods for operating horizontal axis wind turbine systems are disclosed. A system includes a turbine rotor and a rotor blade adapted to rotate about a horizontal axis, two vertical shafts, a plurality of gears adapted to translate a rotational motion of the turbine rotor into counter-rotating vertical rotational motions of the shafts, and two generators fixed to a tower, adapted to translate a rotational motion of the shafts into electrical power. A method of operating a horizontal axis wind turbine system includes obtaining a turbine rotor and a rotor blade adapted to rotate about a horizontal axis, obtaining two vertical shafts, obtaining a plurality of gears, and obtaining two generators fixed to a tower, translating a rotational motion of the turbine rotor into counter-rotating vertical rotational motions of the shafts using the gears, and translating a rotational motion of the shafts into electrical power using the generators.
    Type: Application
    Filed: May 25, 2012
    Publication date: October 24, 2013
    Inventors: Hanwoo CHO, Whang Cho
  • Publication number: 20060007948
    Abstract: The personal code registration and use method and the service system therefor, through a telecommunication network, are provided. In the personal code registering method it is checked whether there is generated a code registration request from a subscriber terminal connected to the telecommunication network. When the code registration request is generated, subscriber information is received and the personal code is generated. If the generated personal code corresponds to a new code, a code registration and storage for the generated personal code is performed. Thereby, a peculiar identification code can be adequately used to applicable things, substantially reducing a leakage of personal information.
    Type: Application
    Filed: September 11, 2004
    Publication date: January 12, 2006
    Inventor: Byoung-Whang Cho