Patents by Inventor Won-jun Hwang

Won-jun Hwang 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: 9997269
    Abstract: A radiographic apparatus may comprise: a radiation irradiating module configured to irradiate radiation to an object; and/or a processing module configured to automatically set a part of a region to which the radiation irradiating module is able to irradiate the radiation, to a region of interest, and further configured to determine at least one of a radiation irradiation position and a radiation irradiation zone of the radiation irradiating module based on the region of interest.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: June 12, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Shik Roh, Seung Yong Hyung, Ji Yeun Kim, Jong Won Lee, Ju Suk Lee, Won Jun Hwang, Hyo Seok Hwang
  • Patent number: 9924553
    Abstract: The present disclosure relates to a device-to-device (D2D) communication for direct communication between nodes in a wireless communication system, wherein an operation method of a terminal includes the steps of: generating sequences, which belong to an orthogonal sequence set, according to a sequence pattern corresponding to a priority of a link; and transmitting the sequences, as signals for measurement of a reception electric power of a counterpart terminal, through sub-blocks within a channel, wherein one sequence is transmitted through each of the sub-blocks.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: March 20, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chi-Woo Lim, Hyung-Jin Choi, Kyung-Hoon Won, Won-Jun Hwang, Wi-Pil Kang, Kyung-Kyu Kim, Dae-Gyun Kim, Hyun-Seok Ryu, Seung-Hoon Park
  • Publication number: 20180077529
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). In particular, the present invention relates to an apparatus and method for position measurement in a wireless communication system. An operating method of a terminal in the wireless communication system includes transmitting a signal for requesting for positioning, and receiving positioning signals for the positioning of the terminal from a plurality of other terminals.
    Type: Application
    Filed: April 8, 2016
    Publication date: March 15, 2018
    Inventors: Hyunseok RYU, Hyung-Jin CHOI, Kyung-Hoon LEE, Won-Jun HWANG, Seung-Hoon PARK, Peng XUE
  • Patent number: 9767608
    Abstract: An augmented reality image display system may be implemented together with a surgical robot system. The surgical robot system may include a slave system performing a surgical operation, a master system controlling the surgical operation of the slave system, an imaging system generating a virtual image of the inside of a patient's body, and an augmented reality image display system including a camera capturing a real image having a plurality of markers attached to the patient's body or a human body model. The augmented reality image system may include an augmented reality image generator which detects the plurality of markers in the real image, estimates the position and gaze direction of the camera using the detected markers, and generates an augmented reality image by overlaying a region of the virtual image over the real image, and a display which displays the augmented reality image.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: September 19, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee Kuk Lee, Won Jun Hwang, Kyung Shik Roh, Jung Yun Choi
  • Patent number: 9724061
    Abstract: Provided are an X-ray imaging apparatus that is capable of tracking a position of an object of interest using a Kalman filter so as to reduce the amount of X-ray radiation exposure of a subject, calculating covariance indicative of accuracy of the tracing, and controlling a collimator so that the position of the object of interest and calculated covariance may be correlated with a position and an area of a region into which X-rays are radiated, and a method of controlling the X-ray imaging apparatus.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: August 8, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Yong Hyung, Ji Yeun Kim, Kyung Shik Roh, Jong Won Lee, Ju Suk Lee, Won Jun Hwang, Hyo Seok Hwang
  • Patent number: 9647862
    Abstract: A method for operating a device in a wireless communication system supporting Device to Device (D2D) communication system includes receiving a reference signal from each of at least one transmitting device, estimating a frequency offset between the reference signals and a comparison reference signal corresponding to the reference signals, and adjusting a transmit frequency of a voltage controlled oscillator of the device using the estimated frequency offset estimation. An apparatus for compensating for a frequency offset of a device in a wireless communication system supporting Device to Device (D2D) communication system includes a frequency offset estimator configured to receive reference signals from each of at least one transmitting device, and estimating a frequency offset between the reference signals and a comparison reference signal corresponding to the reference signals, and a voltage controlled oscillator configured to adjust a transmit frequency using the estimated frequency offset.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 9, 2017
    Assignees: Samsung Electronics Co., Ltd., Research & Business Foundation Sungkyunkwan University
    Inventors: Seung-Hoon Park, Hyung-Jin Choi, Kyung-Hun Won, Won-Jun Hwang, Kyung-Kyu Kim, Dae-Gyun Kim, Hyun-Seok Ryu, Dong-Jun Lee, Chi-Woo Lim
  • Patent number: 9615890
    Abstract: A surgical robot system includes a slave system to perform a surgical operation on a patient and an imaging system that includes an image capture unit including a plurality of cameras to acquire a plurality of affected area images, an image generator detecting an occluded region in each of the affected area images acquired by the plurality of cameras, removing the occluded region therefrom, warping each of the affected area images from which the occluded region is removed, and matching the affected area images to generate a final image, and a controller driving each of the plurality of cameras of the image capture unit to acquire the plurality of affected area images and inputting the acquired plurality of affected area images to the image generator to generate a final image.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: April 11, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Jun Hwang, Kyung Shik Roh, Suk June Yoon, Seung Yong Hyung
  • Publication number: 20170086028
    Abstract: Disclosed are a method, communication scheme and a system thereof for converging an IoT technology and a 5G communication system for supporting a high data transmission rate beyond that of a 4G system. The method, communication scheme and a system can be applied to intelligent services (for example, services related to a smart home, smart building, smart city, smart car, connected car, health care, digital education, retail business, security, and safety) based on the 5G communication technology and the IoT-related technology. A method for allocating resources for D2D communication by a User Equipment (UE) includes: identifying a movement direction of the UE; selecting a resource pool mapped to the identified movement direction among resource pools allocated according to the movement direction; and performing D2D communication using the selected resource pool.
    Type: Application
    Filed: September 20, 2016
    Publication date: March 23, 2017
    Inventors: Won-Jun Hwang, Hyun-Seok Ryu
  • Publication number: 20170071457
    Abstract: An endoscope to acquire a 3D image and a wide view-angle image and an image processing apparatus using the endoscope includes a front image acquirer to acquire a front image and a lower image acquirer to acquire a lower image in a downward direction of the front image acquirer. The front image acquirer includes a first objective lens and a second objective lens arranged side by side in a horizontal direction. The lower image acquirer includes a third objective lens located below the first objective lens and inclined from the first objective lens and a fourth objective lens located below the second objective lens and inclined from the second objective lens.
    Type: Application
    Filed: November 28, 2016
    Publication date: March 16, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Won Jun HWANG, Kyung Shik ROH, Young Bo SHIM, Suk June YOON
  • 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: 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
  • Publication number: 20150365992
    Abstract: The present disclosure relates to a device-to-device (D2D) communication for direct communication between nodes in a wireless communication system, wherein an operation method of a terminal includes the steps of: generating sequences, which belong to an orthogonal sequence set, according to a sequence pattern corresponding to a priority of a link; and transmitting the sequences, as signals for measurement of a reception electric power of a counterpart terminal, through sub-blocks within a channel, wherein one sequence is transmitted through each of the sub-blocks.
    Type: Application
    Filed: January 16, 2014
    Publication date: December 17, 2015
    Inventors: Chi-Woo Lim, Hyung-Jin Choi, Kyung-Hoon Won, Won-Jun Hwang, Wi-Pil Kang, Kyung-Kyu Kim, Dae-Gyun Kim, Hyun-Seok Ryu, Seung-Hoon Park
  • Publication number: 20150206614
    Abstract: A radiographic apparatus may comprise: a radiation irradiating module configured to irradiate radiation to an object; and/or a processing module configured to automatically set a part of a region to which the radiation irradiating module is able to irradiate the radiation, to a region of interest, and further configured to determine at least one of a radiation irradiation position and a radiation irradiation zone of the radiation irradiating module based on the region of interest.
    Type: Application
    Filed: November 5, 2014
    Publication date: July 23, 2015
    Inventors: Kyung Shik ROH, Seung Yong HYUNG, Ji Yeun KIM, Jong Won LEE, Ju Suk LEE, Won Jun HWANG, Hyo Seok HWANG
  • Publication number: 20150139382
    Abstract: Provided are an X-ray imaging apparatus that is capable of tracking a position of an object of interest using a Kalman filter so as to reduce the amount of X-ray radiation exposure of a subject, calculating covariance indicative of accuracy of the tracing, and controlling a collimator so that the position of the object of interest and calculated covariance may be correlated with a position and an area of a region into which X-rays are radiated, and a method of controlling the X-ray imaging apparatus.
    Type: Application
    Filed: September 26, 2014
    Publication date: May 21, 2015
    Inventors: Seung Yong HYUNG, Ji Yeun KIM, Kyung Shik ROH, Jong Won LEE, Ju Suk LEE, Won Jun HWANG, Hyo Seok HWANG
  • Patent number: 8977040
    Abstract: A method and apparatus to generate an object descriptor using extended curvature gabor filters. The method and apparatus may increase a recognition rate of even a relatively small image with use of an extended number of curvature gabor filters having controllable curvatures and may reduce the amount of calculation required for face recognition by performing the face recognition using only some of the extended curvature gabor filters which have a great effect on the recognition rate. The object descriptor generating method includes extracting gabor features from an input object image by applying a plurality of curvature gabor filters, generated via combination of a plurality of curvatures and a plurality of Gaussian magnitudes, to the object image, and generating an object descriptor for object recognition by projecting the extracted features onto a predetermined base vector.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: March 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Jun Hwang, Kyung Shik Roh, Suk June Yoon
  • Publication number: 20140354689
    Abstract: A display apparatus may include a display unit configured to display images; a first camera, mounted on a surface of the display unit on which the images are displayed, configured to acquire an image of a user's face; a second camera, mounted on a surface of the display unit opposite to the first camera, configured to acquire an image of an object; and/or a controller configured to detect a gaze direction of the user from the image of the user's face acquired by the first camera, configured to control a shooting direction of the second camera to match the detected gaze direction, and configured to display the image of the object acquired by the second camera, having an adjusted shooting direction, on the display unit.
    Type: Application
    Filed: November 13, 2013
    Publication date: December 4, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee Kuk LEE, No San KWAK, Won Jun HWANG
  • Publication number: 20140330078
    Abstract: An endoscope to acquire a 3D image and a wide view-angle image and an image processing apparatus using the endoscope includes a front image acquirer to acquire a front image and a lower image acquirer to acquire a lower image in a downward direction of the front image acquirer. The front image acquirer includes a first objective lens and a second objective lens arranged side by side in a horizontal direction. The lower image acquirer includes a third objective lens located below the first objective lens and inclined from the first objective lens and a fourth objective lens located below the second objective lens and inclined from the second objective lens.
    Type: Application
    Filed: September 19, 2013
    Publication date: November 6, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Won Jun HWANG, Kyung Shik Roh, Young Bo Shim, Suk June Yoon
  • Publication number: 20140330077
    Abstract: Surgical trocars, and image acquisition method using the same, include a body having a passage configured to receive at least one surgical instrument, and at least one camera movably coupled to an outer wall of the body.
    Type: Application
    Filed: January 13, 2014
    Publication date: November 6, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Suk June YOON, Kyung Shik ROH, Soon Yong PARK, Sung Hwan AHN, Ji Hyo LEE, Won Jun HWANG, Hyo Seok HWANG
  • Patent number: 8861805
    Abstract: A face recognition apparatus and face recognition method perform face recognition of a face by comparing an image of the face to be identified with target images for identification. The face recognition apparatus includes an image input unit to receive an image of a face to be identified, a sub-image production unit to produce a plurality of sub-images of the input face image using a plurality of different face models, a storage unit to store a plurality of target images, and a face recognition unit to set the sub-images to observed nodes of a Markov network, to set the target images to hidden nodes of the Markov network, and to recognize the presence of a target image corresponding to the face images to be identified using a first relationship between the observed nodes and the hidden nodes and a second relationship between the hidden nodes.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: October 14, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won Jun Hwang, Kyung Shik Roh, Young Bo Shim, Suk June Yoon
  • Publication number: 20140288413
    Abstract: A surgical robot system includes a slave system to perform a surgical operation on a patient and an imaging system that includes an image capture unit including a plurality of cameras to acquire a plurality of affected area images, an image generator detecting an occluded region in each of the affected area images acquired by the plurality of cameras, removing the occluded region therefrom, warping each of the affected area images from which the occluded region is removed, and matching the affected area images to generate a final image, and a controller driving each of the plurality of cameras of the image capture unit to acquire the plurality of affected area images and inputting the acquired plurality of affected area images to the image generator to generate a final image.
    Type: Application
    Filed: August 13, 2013
    Publication date: September 25, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Won Jun Hwang, Kyung Shik Roh, Suk June Yoon, Seung Yong Hyung