Patents by Inventor Kyung-shik Roh

Kyung-shik Roh 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: 9452797
    Abstract: A support module includes a first rigid body, a space formation body connected to the first rigid body and forming an enclosed space, and a plurality of hard particles located within the enclosed space. When at least a predetermined pressure is applied to the support module such that a volume of the enclosed space is decreased to a predetermined value, the plurality of hard particles and space formation body form a second rigid body. Such a support module may improve the stability of a walking robot, the grip of a gripping structure, or the stability of a load-bearing structure.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 27, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Joo Hyung Kim, Kyung Shik Roh, Kee Hong Seo
  • Patent number: 9416855
    Abstract: A wire connection apparatus includes a link unit and a drive unit configured to drive the link unit. The link unit includes a first link, a second link rotatably coupled to the first link, a third link rotatably coupled to the second link, a plurality of wires, each of which is fixed at one end thereof to the third link, and is fixed at the other end thereof to the drive unit, and through which a driving force is transmitted from the drive unit to the third link, a path forming structure to form a path of each of the wires between the drive unit and the third link, and a length holding structure to hold constant a length of each of the wires between the drive unit and the third link.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: August 16, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Bo Shim, Young Do Kwon, Byung June Choi, Yong Jae Kim, Kyung Shik Roh, Min Hyung Lee
  • Publication number: 20160229060
    Abstract: An apparatus for returning of robot and a returning method thereof are provided, in which the apparatus for returning of robot includes a signal transmitter which is disposed on a charging station and transmits a single front signal and a plurality of distance signals including first, second and third distance signals, a signal receiver which is disposed on the robot and includes a plurality of receiving sensors to receive any one among the single front signal and one among the plurality of distance signals, and a controller which calculates an angle of the charging station by using one among the received single front signal and the plurality of received distance signals and controls the driving so that the robot can return to the charging station by using the calculated angle of the charging station.
    Type: Application
    Filed: November 6, 2015
    Publication date: August 11, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-min KIM, No-san KWAK, Shin KIM, Kyung-shik ROH, Soon-yong PARK, Suk-june YOON
  • Patent number: 9411335
    Abstract: A suitable waypoint is selected using a goal score, a section from a start point to a goal point through the waypoint is divided into a plurality of sections based on the waypoint with a solution of inverse kinematics, and trees are simultaneously expanded in the sections using a Best First Search & Rapidly Random Tree (BF-RRT) algorithm so as to generate a path. By this configuration, a probability of local minima occurring is decreased compared with the case where the waypoint is randomly selected. In addition, since the trees are simultaneously expanded in the sections each having the waypoint with a solution of inverse kinematics, the solution may be rapidly obtained. A time consumed to search for an optimal motion path may be shortened and path plan performance may be improved.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: August 9, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myung Hee Kim, Kyung Shik Roh, San Lim, Bok Man Lim, Guo Chunxu
  • Patent number: 9402688
    Abstract: A surgical robot system and a control method thereof include a slave device and a master device to control motion of the slave device. The surgical robot system further includes a monitoring device that inspects a signal transmitted within the system in real time to stop motion of the slave device if an abnormal signal is detected.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: August 2, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Ki Min, Kyung Shik Roh
  • Publication number: 20160195386
    Abstract: An optical scanning probe and an apparatus to generate three-dimensional (3D) data using the same are provided. The apparatus to generate 3D data includes an optical scanning probe that scans light generated from a light emitter over an object to be measured, a distance calculation processor that calculates a distance between the optical scanning probe and the object to be measured, based on the light scanned over the object to be measured and light reflected from the object to be measured; and a depth image generation processor that generates 3D data based on a scanning direction of the optical scanning probe and the distance between the optical scanning probe and the object to be measured.
    Type: Application
    Filed: August 28, 2015
    Publication date: July 7, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Suk June YOON, Kyung Shik ROH, No San KWAK, Shin KIM, Ji Min KIM, Soon Yong PARK
  • Publication number: 20160188985
    Abstract: An obstacle detecting unit includes a reflective mirror formed to reflect light which is incident from a front area and a lower portion of the front area below a central portion of the reflective mirror; a catadioptric lens disposed coaxially with the reflective mirror in an upper portion of the reflective mirror, the catadioptric lens on which light incident from the front area and an upper portion of the front area; and an image forming module disposed coaxially with the reflective mirror below the reflective mirror, the image forming module on which the light reflected by the reflective mirror is incident, wherein a through hole is formed in the central portion of the reflective mirror, and the light coming out of the catadioptric lens passes through the through hole and then is incident on the image forming module.
    Type: Application
    Filed: October 15, 2015
    Publication date: June 30, 2016
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-il KIM, Suk-june YOON, Shin KIM, Kyung-shik ROH, Soon-yong PARK, Sang-sik YOON, Seung-jae PARK
  • Patent number: 9376151
    Abstract: A walking robot and a control method thereof. The control method includes performing transition of a second leg to a toe-off state, when ground reaction force applied to a first leg exceeds a first set value under the condition that the first leg is in a swing state and the second leg is in a support state, performing transition of the second leg to the swing state and transition of the first leg to the support state, when ground reaction force applied to the second leg is below a second set value under the condition that the second leg is in the toe-off state, and achieving walking of the walking robot by repeating the transitions among the swing state, the support state and the toe-off state. Thereby, the control method allows the robot to more stably and naturally walk.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: June 28, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Ho Park, Kyung Shik Roh, Woong Kwon, Joo Hyung Kim, Ju Suk Lee
  • Patent number: 9334002
    Abstract: A balance control apparatus of a robot and a control method thereof. The balance control method of the robot, which has a plurality of legs and an upper body, includes detecting pose angles of the upper body and angles of the plurality of joint units, acquiring a current capture point and a current hip height based on the pose angles and the angles of the plurality of joint units, calculating a capture point error by comparing the current capture point with a target capture point, calculating a hip height error by comparing the current hip height with a target hip height, calculating compensation forces based on the capture point error and the hip height error, calculating a target torque based on the calculated compensation forces, and outputting the calculated target torque to the plurality of joint units to control balance of the robot.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: May 10, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kee Hong Seo, Joo Hyung Kim, Kyung Shik Roh
  • Patent number: 9333648
    Abstract: A robot control method and apparatus estimates an error based on information of an object obtained using a motor drive current sensor, a force sensor or a tactile sensor mounted at a robot hand and information of the object obtained using an optical sensor and compensates for the error. The robot control method and apparatus includes measuring information of an object using an optical sensor or calculating information of the object input by a user, moving a robot hand to the object based on the information of the object, controlling the thumb and fingers of the robot hand to contact the object based on the information of the object, determining whether the thumb and fingers have contacted the object through a motor drive current sensor, a force sensor or a tactile sensor, and grasping the object depending upon whether the thumb and the fingers have contacted the object.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: May 10, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji Young Kim, Yong Jae Kim, Kyung Shik Roh, Young Bo Shim
  • Patent number: 9311524
    Abstract: An image processing apparatus and method may accurately separate only humans among moving objects, and also accurately separate even humans who have no motion via human segmentation using a depth data and face detection technology. The apparatus includes a face detecting unit to detect a human face in an input color image, a background model producing/updating unit to produce a background model using a depth data of an input first frame and face detection results, a candidate region extracting unit to produce a candidate region as a human body region by comparing the background model with a depth data of an input second or subsequent frame, and to extract a final candidate region by removing a region containing a moving object other than a human from the candidate region, and a human body region extracting unit to extract the human body region from the candidate region.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won Jun Hwang, Dong Soo Kim, Kyung Shik Roh, Young Bo Shim, Xiangsheng Huang
  • Patent number: 9304001
    Abstract: In some example embodiments, a position recognition method of an autonomous mobile robot may include: dividing a grid map into a plurality of spaces; extracting, by a processor, learning data of each of the plurality of spaces; generating, by the processor, space models of each of the plurality of spaces using the extracted learning data; and/or recognizing, by the processor, a current position of the autonomous mobile robot based on the extracted learning data, the space models, and actual range scan data input through the autonomous mobile robot.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: April 5, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Soon Yong Park, Kyung Shik Roh
  • Patent number: 9298194
    Abstract: A method to control medical equipment that moves along at least one axis or performs joint movement is provided. While the medical equipment is passively moved as operated by the operator, the operation intention of the operator is determined using a force sensor, a torque sensor, or the like, and motor control is performed taking into consideration the determined operation intention to reduce load (or drive power) of the operator. To accomplish this, the method determines a direction and magnitude of force that an operator applies to the medical equipment to move the medical equipment and generates auxiliary force having a magnitude proportional to the force applied by the operator and having the same direction as the direction of the force applied by the operator such that the medical equipment may be moved.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: March 29, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang Kyu Lee, San Lim, Kyung Won Moon, Kyung Shik Roh
  • Patent number: 9298319
    Abstract: Disclosed herein are a multi-touch recognition apparatus and a control method thereof. The multi-touch recognition apparatus executes blur filtering for noise removal when an image is input through a camera unit photographing a screen of a display panel supporting multi-touch, calculates and outputs a difference image obtained by removing the background image stored in the storage unit from the blur-filtered image, calculates a new background image using the difference image and a binary image of the difference image, and updates the background image stored in the storage unit using the calculated new background image, thereby effectively removing a background other than multi-touch and thus improving multi-touch recognition performance.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: March 29, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Hyo Lee, Kyung Shik Roh, Young Bo Shim
  • Patent number: 9275296
    Abstract: An image processing apparatus for searching for a feature point by use of a depth image and a method thereof are provided. The image processing apparatus includes an input unit configured to input a three-dimensional image having depth information, a feature point extraction unit configured to obtain a designated point from an object image extracted from the depth image to obtain a feature point that is located at a substantially farthest distance from the designated point, and to obtain other feature points that are located at substantially farthest distances from feature points that are previously obtained as well as the designated point. The apparatus includes a control unit configured to control the input unit and the feature point extraction unit so that time in estimating a structure of the object is reduced, and a recognition result is enhanced.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: March 1, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyo Seok Hwang, Huang Xiangsheng, Dong Soo Kim, Kyung Shik Roh, Young Bo Shim, Suk June Yoon, Seung Yong Hyung, Won Jun Hwang
  • Patent number: 9261353
    Abstract: A medical robot system and a method to control the medical robot system are used to detect position information of a surgical instrument in an incised region, thereby improving the safety of robotic surgery. A surgical instrument may be inserted in a through-hole of a trocar inserted into an incised region of a patient. The medical robotic system includes a surgical instrument position detection apparatus to detect position information of the surgical instrument in the through-hole of the trocar, when the surgical instrument is inserted into the through-hole. The medical robotic system further includes a console to control an operation of a surgical robot having the surgical instrument, based on the detected position information of the surgical instrument.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: February 16, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Jun Sang, Kwang Kyu Lee, Woong Kwon, Kyung Shik Roh
  • Patent number: 9258546
    Abstract: A three dimensional (3D)imaging system capable of effectively displaying a 3D image suitable for a user by use of different cameras, and an image reproducing method thereof, the 3D imaging system configured to have different cameras freely selected without restriction while enabling the placement of the cameras thereof to be changeable according to the disposition of eyes of the user, so that a 3D image is generated and displayed from a stereo image adapted to the user, and by using the by-user generated 3D image, various contents services including a real time broadcasting, a Contents on Demand (COD), games, and a video communication are provided to a user, so that the fatigue or dizziness of a user is reduced, and the optimum perception of 3D sense is provided.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: February 9, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae Sin Ha, Young Do Kwon, Kyung Shik Roh
  • Patent number: 9254571
    Abstract: A robot and a method for creating a robot path. The method for planning the robot path includes generating a depth map including a plurality of cells by measuring a distance to an object, dividing a boundary among the plurality of cells into a plurality of partitions according to individual depth values of the cells, and extracting a single closed loop formed by the divided boundary, obtaining a position and shape of the object located at a first time through the extracted single closed loop, calculating a probability that the object is located at a second time after t seconds on the basis of the obtained position and shape of the object located at the first time, and creating a moving path simultaneously while avoiding the object according to the calculated probability, thereby creating an optimum path without colliding with the object.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: February 9, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Yong Hyung, Kyung Shik Roh, Suk June Yoon, Sung Hwan Ahn
  • Patent number: 9254568
    Abstract: A robot control method of controlling a robot that has a flexible module including ‘n’ first nodes participating in pan motion and ‘n’ second nodes participating in tilt motion may include: measuring a translational motion distance, a pan motion angle, and a tilt motion angle of the flexible module; calculating state vectors of the ‘n’ first nodes and the ‘n’ second nodes using the measured translational motion distance; calculating operating angle distribution rates of the ‘n’ first nodes and operating angle distribution rates of the ‘n’ second nodes using the calculated state vectors of the ‘n’ first nodes and the calculated state vectors of the ‘n’ second nodes; and/or calculating operating angles of the ‘n’ first nodes and operating angles of the ‘n’ second nodes using the calculated operating angle distribution rates and the measured pan motion angle and tilt motion angle.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: February 9, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Young Kim, Kwang Kyu Lee, Woong Kwon, Kyung Shik Roh, Ju Suk Lee, Seung Yong Hyung
  • Patent number: 9251399
    Abstract: A method of separating an object in a three dimension point cloud including acquiring a three dimension point cloud image on an object using an image acquirer, eliminating an outlier from the three dimension point cloud image using a controller, eliminating a plane surface area from the three dimension point cloud image, of which the outlier has been eliminated using the controller, and clustering points of an individual object from the three dimension point cloud image, of which the plane surface area has been eliminated using the controller.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: February 2, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo Seok Hwang, Kyung Shik Roh, Suk June Yoon