Patents by Inventor Hyeong-hwan Choi

Hyeong-hwan 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).

  • Robot cleaner and control method thereof
    Patent number: 10463220
    Abstract: A robot cleaner is disclosed. The robot cleaner includes an infrared sensor including a light emitting device configured to output an infrared ray to a floor and a light receiving device configured to receive the infrared ray reflected from the floor and convert the received infrared ray into an electric signal and output the electric signal; and a processor configured to determine an output voltage of the electrical signal if the electrical signal is received from the infrared sensor, control a travel direction of the robot cleaner based on the output voltage and a predetermined first threshold voltage, and control a suction mode of the robot cleaner based on the output voltage and a predetermined second threshold voltage, wherein the second threshold voltage is higher than the first threshold voltage.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: November 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-keun Jee, Hyeong-hwan Choi, Min-ji Kim, Jong-soon Kim, Hyeong-jun Kim
  • Air conditioning apparatus and method of displaying dust concentration using the same
    Patent number: 10254263
    Abstract: A dust concentration display method is provided. The method includes (a) detecting a dust concentration through a dust sensor; (b) displaying a dew condensation message in a display in response to the detected dust concentration being equal to or more than a preset first dust concentration; and (c) detecting the dust concentration in real time for a preset time and displaying the dew condensation message in the display in response to the detected dust concentration being equal to or more than a preset second dust concentration.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: April 9, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeong-hwan Choi, Yong-keun Jee
  • ROBOT CLEANER AND CONTROL METHOD THEREOF
    Publication number: 20180168414
    Abstract: A robot cleaner is disclosed. The robot cleaner includes an infrared sensor including a light emitting device configured to output an infrared ray to a floor and a light receiving device configured to receive the infrared ray reflected from the floor and convert the received infrared ray into an electric signal and output the electric signal; and a processor configured to determine an output voltage of the electrical signal if the electrical signal is received from the infrared sensor, control a travel direction of the robot cleaner based on the output voltage and a predetermined first threshold voltage, and control a suction mode of the robot cleaner based on the output voltage and a predetermined second threshold voltage, wherein the second threshold voltage is higher than the first threshold voltage.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 21, 2018
    Inventors: Yong-keun JEE, Hyeong-hwan CHOI, Min-ji KIM, Jong-soon KIM, Hyeong-jun KIM
  • AIR CONDITIONING APPARATUS AND METHOD OF DISPLAYING DUST CONCENTRATION USING THE SAME
    Publication number: 20160356519
    Abstract: A dust concentration display method is provided. The method includes (a) detecting a dust concentration through a dust sensor; (b) displaying a dew condensation message in a display in response to the detected dust concentration being equal to or more than a preset first dust concentration; and (c) detecting the dust concentration in real time for a preset time and displaying the dew condensation message in the display in response to the detected dust concentration being equal to or more than a preset second dust concentration.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 8, 2016
    Inventors: Hyeong-hwan Choi, Yong-keun Jee