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).
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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
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Patent number: 11568202Abstract: Disclosed is an apparatus for determining goodness of fit related to microphone placement capable of communicating with other electronic devices and an external server in a 5G communication network, in which an artificial intelligence (AI) algorithm and/or a machine learning algorithm are executed. The apparatus includes an inputter, a communicator, a storage, and a processor. As the apparatus is provided, sound recognition effects can be improved.Type: GrantFiled: September 20, 2019Date of Patent: January 31, 2023Assignee: LG ELECTRONICS INC.Inventors: Jae Pil Seo, Keun Sang Lee, Dong Hoon Yi, Byoung Gi Lee, Hyeon Sik Choi
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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
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Publication number: 20200012920Abstract: Disclosed is an apparatus for determining goodness of fit related to microphone placement capable of communicating with other electronic devices and an external server in a 5G communication network, in which an artificial intelligence (AI) algorithm and/or a machine learning algorithm are executed. The apparatus includes an inputter, a communicator, a storage, and a processor. As the apparatus is provided, sound recognition effects can be improved.Type: ApplicationFiled: September 20, 2019Publication date: January 9, 2020Applicant: LG ELECTRONICS INC.Inventors: Jae Pil SEO, Keun Sang LEE, Dong Hoon YI, Byoung Gi LEE, Hyeon Sik CHOI
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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
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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
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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
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Patent number: 9029774Abstract: The present invention relates to a single photon detector (SPD) at telecom wavelength of 1.55 ?m based on InGaAs/InP avalanche photodiode (APD). In order to operate the SPD at a low after-pulse noise, a DC bias voltage lower than the breakdown voltage is applied to an InGaAs/InP APD. A bipolar rectangular gating signal is superimposed with the DC bias voltage and applied to the APD so as to exceed the breakdown voltage during the gate-on time of each period of the gate signal. The use of the bipolar rectangular gating signal enabling us to operate the APD well below the breakdown voltage during the gate-off time, thereby make the release of the trapped charge carriers faster and then reduces the after-pulse noise. As a result, it permits to increase the repetition rate of the SPD.Type: GrantFiled: June 28, 2011Date of Patent: May 12, 2015Assignee: Korea Institute of Science and TechnologyInventors: Abdessattar Bouzid, Sung Wook Moon, Dong Hoon Yi, Se Min Kim
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Patent number: 8954191Abstract: Disclosed is a mobile robot and a controlling method of the same. An entire movement region is divided into a plurality of regions, and a partial map is gradually made by using feature points of a plurality of images of the divided regions. Then, the map is compensated into a closed curved line, thereby making an entire map. Furthermore, when the mobile robot is positioned at a boundary of neighboring regions of the cleaning region, the boundary where a closed curved line is formed, the mobile robot compensates for its position based on a matching result between feature points included in the map, and feature points extracted from images captured during a cleaning process.Type: GrantFiled: March 5, 2010Date of Patent: February 10, 2015Assignee: LG Electronics Inc.Inventors: Dong Hoon Yi, Young Gie Kim, Jeong Suk Yoon, Seong Soo Lee, Jei Hun Lee, Seung Min Baek, Yoo Jin Choi, Sang Ik Na, Su Uk Choe, Yie Bin Kim
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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
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Publication number: 20130221221Abstract: The present invention relates to a single photon detector (SPD) at telecom wavelength of 1.55 ?m based on InGaAs/InP avalanche photodiode (APD). In order to operate the SPD at a low after-pulse noise, a DC bias voltage lower than the breakdown voltage is applied to an InGaAs/InP APD. A bipolar rectangular gating signal is superimposed with the DC bias voltage and applied to the APD so as to exceed the breakdown voltage during the gate-on time of each period of the gate signal. The use of the bipolar rectangular gating signal enabling us to operate the APD well below the breakdown voltage during the gate-off time, thereby make the release of the trapped charge carriers faster and then reduces the after-pulse noise. As a result, it permits to increase the repetition rate of the SPD.Type: ApplicationFiled: June 28, 2011Publication date: August 29, 2013Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Abdessattar Bouzid, Sung Wook Moon, Dong Hoon Yi, Se Min Kim
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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
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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
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Patent number: 8086393Abstract: A method of processing traffic information includes receiving link vertex information including a first identifier and vertex components that each reveal a position along a link. The first identifier enables a determination of a type of information that is included within the received link vertex information. The method also includes determining the type of information included within the received link vertex information based on the first identifier and identifying vertex components within the link vertex information only if the first identifier enables a determination that the received link vertex information includes at least one vertex component.Type: GrantFiled: May 18, 2006Date of Patent: December 27, 2011Assignee: LG Electronics Inc.Inventors: Joon Hwi Lee, Chu Hyun Seo, Young In Kim, Mun Ho Jung, Moon Jeung Joe, Dong Hoon Yi
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Patent number: 8050853Abstract: A method for identifying traffic information for at least one sub-link includes receiving traffic information including a sub-link identifier enabling a determination of whether the received traffic information includes sub-link information, traffic status information enabling a determination of traffic information for a sub-link, information identifying a link within which the sub-link is located, and sub-link location information enabling a determination of a portion of the link that corresponds to the sub-link. The method also includes determining, based on the sub-link identifier whether the received traffic information includes sub-link information and dependent on whether the sub-link identifier enables a determination that the received traffic information includes sub-link information.Type: GrantFiled: May 18, 2006Date of Patent: November 1, 2011Assignee: LG Electronics Inc.Inventors: Mun Ho Jung, Moon Jeung Joe, Dong Hoon Yi
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Patent number: 7940742Abstract: A method for identifying traffic information includes receiving traffic data including a first identifier, information corresponding to a predicted amount of time to traverse a particular link, and information corresponding to a location associated with the particular link, where the first identifier enables a determination of a type of the information that is included within the received traffic data. The method also includes determining a type of information included within the received traffic data based on the first identifier and determining travel time prediction information based on the predicted amount of time included in the received traffic data only if the first identifier enables a determination that the received traffic data includes a prediction related to an amount of time.Type: GrantFiled: May 18, 2006Date of Patent: May 10, 2011Assignee: LG Electronics Inc.Inventors: Joon Hwi Lee, Chu Hyun Seo, Young In Kim, Mun Ho Jung, Moon Jeung Joe, Dong Hoon Yi
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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
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Publication number: 20100228394Abstract: Disclosed is a mobile robot and a controlling method of the same. An entire movement region is divided into a plurality of regions, and a partial map is gradually made by using feature points of a plurality of images of the divided regions. Then, the map is compensated into a closed curved line, thereby making an entire map. Furthermore, when the mobile robot is positioned at a boundary of neighboring regions of the cleaning region, the boundary where a closed curved line is formed, the mobile robot compensates for its position based on a matching result between feature points included in the map, and feature points extracted from images captured during a cleaning process.Type: ApplicationFiled: March 5, 2010Publication date: September 9, 2010Inventors: Dong Hoon YI, Young Gie KIM, Jeong Suk YOON, Seong Soo LEE, Jei Hun LEE, Seung Min BAEK, Yoo Jin CHOI, Sang IK NA, Su Uk CHOE, Yie Bin KIM
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Patent number: 7729335Abstract: A method for identifying traffic information includes receiving traffic data including a first identifier, information corresponding to a prediction of an amount of congestion for a particular link, and information corresponding to a location associated with the particular link. The first identifier enables a determination of a type of the information that is included within the received traffic data. The method also includes determining a type of information included within the received traffic data based on the first identifier and determining congestion amount prediction information based on the information included in the received traffic data only if the first identifier enables a determination that the received traffic data includes a prediction related to congestion amount.Type: GrantFiled: May 18, 2006Date of Patent: June 1, 2010Assignee: LG Electronics Inc.Inventors: Joon Hwi Lee, Chu Hyun Seo, Young In Kim, Mun Ho Jung, Moon Jeung Joe, Dong Hoon Yi, Hyong Chol Choi
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Patent number: 7640102Abstract: A self-tuning apparatus of vehicle speed pulse coefficient and a method thereof wherein a vehicle speed pulse coefficient is flexibly adjusted by environments in which a mobile object travels and a current status of the mobile object to thereby enable to precisely calculate a travel distance and a travel speed of the mobile object in response to a vehicle speed pulse signal.Type: GrantFiled: July 27, 2005Date of Patent: December 29, 2009Assignee: LG Electronics, Inc.Inventors: Mun Ho Jung, Dong Hoon Yi