Patents by Inventor Hyeon-seung YU

Hyeon-seung YU 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: 9541375
    Abstract: A method and apparatus are provided to generate tomography images that performs the method. The apparatus and method are configured to determine a basis pattern from modulated phases of incident rays from a spatial light modulator according to a pattern of arranged pixels. The apparatus and method are further configured to perform spatial shift modulation shifting an arrangement of the pixels vertically or horizontally with respect to the basis pattern to obtain shift patterns of the basis pattern. The apparatus and method are configured to generate tomography images for the basis pattern and the shift patterns using spectrum signals of rays obtained from the incident rays passing through the spatial light modulator and entering a subject. The apparatus and method are configured to select a pattern that generates a clearest tomography image of the subject based on the generated tomography images.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: January 10, 2017
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Techonlogy
    Inventors: Jae-guyn Lim, YongKeun Park, Jae-duck Jang, Hyeon-seung Yu, Seong-deok Lee, Woo-young Jang
  • Patent number: 9354605
    Abstract: A method for forming a three-dimensional holographic image includes identifying a transmission matrix of a scattering material, calculating an incident wave-front corresponding to wave-front information for forming a three-dimensional holographic image, using the identified transmission matrix, and forming the calculated incident wave-front by controlling a wave-front control to modulate a light projected from a light source and forming a three-dimensional holographic image.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: May 31, 2016
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: YongKeun Park, Hyeon Seung Yu
  • Patent number: 9163929
    Abstract: A tomographic image generation apparatus includes a light source unit configured to emit light to be used for scanning an object; an optical control unit configured to control a direction of propagation of light; an optical coupler configured to divide and combine incident light; a plurality of optical systems optically connected to the optical coupler; and a modulation and correction device configured to modulate and correct the light to be used for scanning the object. The modulation and correction device may be disposed between the optical control unit and the optical coupler, or may be included in an optical system that irradiates light onto the object among the plurality of optical systems. The modulation and correction device may only modulate light that is reflected to the object.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: October 20, 2015
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Jae-guyn Lim, Jae-duck Jang, Hyun Choi, Yong-keun Park, Hyeon-seung Yu, Seong-deok Lee, Woo-young Jang
  • Publication number: 20150241843
    Abstract: A method for forming a three-dimensional holographic image includes identifying a transmission matrix of a scattering material, calculating an incident wave-front corresponding to wave-front information for forming a three-dimensional holographic image, using the identified transmission matrix, and forming the calculated incident wave-front by controlling a wave-front control to modulate a light projected from a light source and forming a three-dimensional holographic image.
    Type: Application
    Filed: August 6, 2014
    Publication date: August 27, 2015
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Yongkeun Park, Hyeon Seung Yu
  • Publication number: 20140055789
    Abstract: A tomographic image generation apparatus includes a light source unit configured to emit light to be used for scanning an object; an optical control unit configured to control a direction of propagation of light; an optical coupler configured to divide and combine incident light; a plurality of optical systems optically connected to the optical coupler; and a modulation and correction device configured to modulate and correct the light to be used for scanning the object. The modulation and correction device may be disposed between the optical control unit and the optical coupler, or may be included in an optical system that irradiates light onto the object among the plurality of optical systems. The modulation and correction device may only modulate light that is reflected to the object.
    Type: Application
    Filed: May 20, 2013
    Publication date: February 27, 2014
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Electronics Co., Ltd.
    Inventors: Jae-guyn Lim, Jae-duck Jang, Hyun Choi, Yong-keun Park, Hyeon-seung Yu, Seong-deok Lee, Woo-young Jang
  • Publication number: 20140022554
    Abstract: A method and apparatus are provided to generate tomography images that performs the method. The apparatus and method are configured to determine a basis pattern from modulated phases of incident rays from a spatial light modulator according to a pattern of arranged pixels. The apparatus and method are further configured to perform spatial shift modulation shifting an arrangement of the pixels vertically or horizontally with respect to the basis pattern to obtain shift patterns of the basis pattern. The apparatus and method are configured to generate tomography images for the basis pattern and the shift patterns using spectrum signals of rays obtained from the incident rays passing through the spatial light modulator and entering a subject. The apparatus and method are configured to select a pattern that generates a clearest tomography image of the subject based on the generated tomography images.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 23, 2014
    Inventors: Jae-guyn LIM, YongKeun PARK, Jae-duck JANG, Hyeon-seung YU, Seong-deok LEE, Woo-young JANG