Patents by Inventor Dong-hoon Yi
Dong-hoon Yi 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: 11801604Abstract: The present invention relates to a robot and method for estimating an orientation on the basis of a vanishing point in a low-luminance image, and the robot for estimating an orientation on the basis of a vanishing point in a low-luminance image according to an embodiment of the present invention includes a camera unit configured to capture an image of at least one of a forward area and an upward area of the robot and an image processor configured to extract line segments from a first image captured by the camera unit by applying histogram equalization and a rolling guidance filter to the first image, calculate a vanishing point on the basis of the line segments, and estimate a global angle of the robot corresponding to the vanishing point.Type: GrantFiled: May 8, 2019Date of Patent: October 31, 2023Assignee: LG ELECTRONICS INC.Inventors: Dong-Hoon Yi, Jaewon Chang
-
Publication number: 20200282566Abstract: The present invention relates to a robot and method for estimating an orientation on the basis of a vanishing point in a low-luminance image, and the robot for estimating an orientation on the basis of a vanishing point in a low-luminance image according to an embodiment of the present invention includes a camera unit configured to capture an image of at least one of a forward area and an upward area of the robot and an image processor configured to extract line segments from a first image captured by the camera unit by applying histogram equalization and a rolling guidance filter to the first image, calculate a vanishing point on the basis of the line segments, and estimate a global angle of the robot corresponding to the vanishing point.Type: ApplicationFiled: May 8, 2019Publication date: September 10, 2020Applicant: LG ELECTRONICS INC.Inventors: Dong-Hoon YI, Jaewon CHANG
-
Patent number: 9883000Abstract: The disclosure is related identifying a push content frame at a transport layer and dynamically and selectively controlling a transmission path of a server push service by a server in a heterogeneous multipath transmission environment. The method may include determining whether frames are associated with the server push service when the frames are provided from an application layer to be transmitted to a user equipment, selecting at least one transmission path based on predetermined selection conditions from multiple transmission paths between the server and the user equipment, and transmitting, through the selected at least one transmission path, packetized frames associated with the server push service to the user equipment.Type: GrantFiled: October 7, 2015Date of Patent: January 30, 2018Assignee: KT CORPORATIONInventors: Dong-Hoon Yi, Tae-Sung Hur
-
Publication number: 20160100332Abstract: The disclosure is related identifying a push content frame at a transport layer and dynamically and selectively controlling a transmission path of a server push service by a server in a heterogeneous multipath transmission environment. The method may include determining whether frames are associated with the server push service when the frames are provided from an application layer to be transmitted to a user equipment, selecting at least one transmission path based on predetermined selection conditions from multiple transmission paths between the server and the user equipment, and transmitting, through the selected at least one transmission path, packetized frames associated with the server push service to the user equipment.Type: ApplicationFiled: October 7, 2015Publication date: April 7, 2016Applicant: KT CORPORATIONInventors: Dong-Hoon YI, Tae-Sung HUR
-
Patent number: 9060658Abstract: Disclosed are a mobile robot with a single camera capable of performing a cleaning process with respect to surroundings, and capable of more precisely making a 3D map of the surroundings including a plurality of feature points, and a method for recognizing 3D surroundings of the same. According to the method, images of the surroundings are captured, and a preset number of particles with respect to feature points of a first image are projected to a second image based on matching information of feature points extracted from the two images sequentially captured, thereby extracting 3D information of the surroundings.Type: GrantFiled: March 12, 2010Date of Patent: June 23, 2015Assignee: LG ELECTRONICS INC.Inventors: Yoo-Jin Choi, Young-Gie Kim, Jeong-Suk Yoon, Seong-Soo Lee, Yie-Bin Kim, Seung-Min Baek, Sang-Ik Na, Su-Uk Choe, Dong-Hoon Yi, Jei-Hun Lee
-
Patent number: 8798792Abstract: A method for controlling a robot cleaner includes: detecting a cleaning target space, setting a cleaning region within the detected cleaning space and cleaning the set cleaning region; if the set cleaning region is completely cleaned, moving to a not-yet-cleaned region adjacent to a cleaning completion spot of the cleaning region; and setting a new cleaning region in the not-yet-cleaned region and performing cleaning. Without repeating a cleaning region in the cleaning target space, the robot cleaner can extend its cleaning region, so the cleaning efficiency of the robot cleaner can be improved. Also, the robot cleaner can be smoothly enter a new cleaning target space or released therefrom. In particular, even when the entrance of the new cleaning target space is narrow, the robot cleaner can smoothly enter the new cleaning target space and gets out thereof.Type: GrantFiled: October 24, 2008Date of Patent: August 5, 2014Assignee: LG Electronics Inc.Inventors: Dong-Woo Park, Sung-Woon Kim, Dong-Hoon Yi, Jeong-Suk Yoon, Jong-Il Park, Hyoung-Hwa Yoon
-
Patent number: 8489234Abstract: Disclosed are a mobile robot and a controlling method thereof. The mobile robot comprises: a case; and a sensor unit having two or more sending portions and two or more receiving portions arranged on an outer surface of the case separately and alternately. The plurality of sending portions and receiving portions are arranged in an alternating manner, thereby having a directivity. Also, since signals received through the receiving portions are judged based on a reference value, an area unallowable to be detected for an obstacle sensing is minimized, which allows an obstacle to be detected more accurately. When the obstacle corresponds to a side wall on the basis of a moving path of the mobile robot, a distance between the side wall and the mobile robot is calculated based on signals received by the receiving portion closest to the side wall. Accordingly, the mobile robot can move with maintaining a constant distance from the side wall.Type: GrantFiled: July 16, 2008Date of Patent: July 16, 2013Assignee: LG Electronics Inc.Inventors: Ho-Seon Rew, Dong-Hoon Yi, Young-Gie Kim, Young-Gyu Jung, Moon-Kee Chung, Jong-Il Park, Woo-Jin Choi
-
Publication number: 20120019627Abstract: Disclosed are a mobile robot with a single camera capable of performing a cleaning process with respect to surroundings, and capable of more precisely making a 3D map of the surroundings including a plurality of feature points, and a method for recognizing 3D surroundings of the same. According to the method, images of the surroundings are captured, and a preset number of particles with respect to feature points of a first image are projected to a second image based on matching information of feature points extracted from the two images sequentially captured, thereby extracting 3D information of the surroundings.Type: ApplicationFiled: March 12, 2010Publication date: January 26, 2012Inventors: Yoo-Jin Choi, Young-Gie Kim, Jeong-Suk Yoon, Seong-Soo Lee, Yie-Bin Kim, Seung-Min Baek, Sang-Ik Na, Su-Uk Choe, Dong-Hoon Yi, Jei-Hun Lee
-
Publication number: 20110098853Abstract: A method for controlling a robot cleaner includes: detecting a cleaning target space, setting a cleaning region within the detected cleaning space and cleaning the set cleaning region; if the set cleaning region is completely cleaned, moving to a not-yet-cleaned region adjacent to a cleaning completion spot of the cleaning region; and setting a new cleaning region in the not-yet-cleaned region and performing cleaning. Without repeating a cleaning region in the cleaning target space, the robot cleaner can extend its cleaning region, so the cleaning efficiency of the robot cleaner can be improved. Also, the robot cleaner can be smoothly enter a new cleaning target space or released therefrom. In particular, even when the entrance of the new cleaning target space is narrow, the robot cleaner can smoothly enter the new cleaning target space and gets out thereof.Type: ApplicationFiled: October 24, 2008Publication date: April 28, 2011Inventors: Dong-Woo Park, Sung-Woon Kim, Dong-Hoon YI, Jeong-Suk Yoon, Jong-II Park, Hyoung-Hwa Yoon
-
Publication number: 20060238372Abstract: An apparatus and a method for controlling an electric appliance using a broadcast wave are disclosed. Various electric appliances widely used in each household are so configured as to be equipped with a broadcast receiving module and receive a product-related additional data packet through the broadcast wave such as an FM multiplex broadcasting. The electric appliance controls its own operation according to information in the received additional data packet. Accordingly, the present invention enables the electric appliances to be remotely controlled by receiving the product control information packet transmitted through the broadcast wave. The present invention enables a natural disaster to be warned by receiving a disaster warning data packet transmitted through the broadcast wave. The present invention further enables guidance information on the electric appliance to be displayed by receiving the product guidance information packet transmitted through the broadcast wave.Type: ApplicationFiled: April 17, 2006Publication date: October 26, 2006Applicant: LG ELECTRPNICS INC.Inventors: Munho JUNG, Dong-Hoon YI, Moon JOE, Hee-Youn LEE, Sun KIM, Joonhwi LEE
-
Patent number: 7060948Abstract: Provided are a temperature control method and apparatus for driving a polymerize chain reaction (PCR) chip. In the temperature control apparatus, which is for a polymerize chain reaction chip, PCR chips receive electric power from the outside and generating heat to maintain a predetermined temperature and for outputting actual temperature information to the outside. electric power supply units supply electric power to the PCR chips according to input control signals, and a controller generates the control signals based on control information including pre-established control temperature and control time information and the actual temperature information supplied from the PCR chips in order to supply the control signals to the electric power supply units. In the present invention, it is possible to examine various kinds of DNA at the same time because the temperature control apparatus controls the temperatures of DNA samples at the same time.Type: GrantFiled: December 2, 2002Date of Patent: June 13, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-il Cho, Dae-sung Yoon, Young-sun Lee, Dong-hoon Yi, Geun-bae Lim
-
Publication number: 20030169799Abstract: Provided are a temperature control method and apparatus for driving a polymerize chain reaction (PCR) chip. In the temperature control apparatus, which is for a polymerize chain reaction chip, PCR chips receive electric power from the outside and generating heat to maintain a predetermined temperature and for outputting actual temperature information to the outside. electric power supply units supply electric power to the PCR chips according to input control signals, and a controller generates the control signals based on control information including pre-established control temperature and control time information and the actual temperature information supplied from the PCR chips in order to supply the control signals to the electric power supply units. In the present invention, it is possible to examine various kinds of DNA at the same time because the temperature control apparatus controls the temperatures of DNA samples at the same time.Type: ApplicationFiled: December 2, 2002Publication date: September 11, 2003Inventors: Dong-Il Cho, Dae-Sung Yoon, Young-Sun Lee, Dong-Hoon Yi, Geun-Bae Lim