Patents by Inventor Changwha SUN

Changwha SUN 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).

  • Robot cleaner
    Patent number: 9283670
    Abstract: A robot cleaner includes a main body, a light transmitting unit, an image sensor, a base, a rotation drive unit, and an elevation drive unit. The light transmitting unit emits light. The light reflected or scattered by an obstacle is sensed by the image sensor. The base supports the light transmitting unit and the image sensor and is rotatably and vertically movably disposed in the main body. The rotation drive unit rotates the base. The elevation drive unit allows the base to retract or protract from the main body.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: March 15, 2016
    Assignee: LG Electronics Inc.
    Inventors: Changwha Sun, Dongmyung Shin
  • ROBOT CLEANER
    Publication number: 20140257564
    Abstract: A robot cleaner includes a main body, a light transmitting unit, an image sensor, a base, a rotation drive unit, and an elevation drive unit. The light transmitting unit emits light. The light reflected or scattered by an obstacle is sensed by the image sensor. The base supports the light transmitting unit and the image sensor and is rotatably and vertically movably disposed in the main body. The rotation drive unit rotates the base. The elevation drive unit allows the base to retract or protract from the main body.
    Type: Application
    Filed: September 24, 2013
    Publication date: September 11, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Changwha SUN, Dongmyung SHIN