Patents by Inventor Sun-Kyu Yu

Sun-Kyu 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).

  • AD converter using photonic crystal
    Patent number: 7684662
    Abstract: An AD converter is provided. The AD converter includes a light source unit which provides an optical signal, at least one waveguide unit which consists of a photonic crystal and transmits the optical signal, a modulation unit which applies a RF signal to the at least one waveguide unit, thereby modulating an optical signal output from the at least one waveguide unit, and a digital conversion unit which converts the modulated optical signal to a digital signal. Accordingly, a compact-sized AD convert can be realized.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: March 23, 2010
    Assignees: Samsung Electronics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Young-Tack Houng, Nam-Kyoo Park, Sang-Wook Kwon, In-Sang Song, Jong-Seok Kim, Suk-Mo Koo, Sun-Kyu Yu
  • AD CONVERTER USING PHOTONIC CRYSTAL
    Publication number: 20090142014
    Abstract: An AD converter is provided. The AD converter includes a light source unit which provides an optical signal, at least one waveguide unit which consists of a photonic crystal and transmits the optical signal, a modulation unit which applies a RF signal to the at least one waveguide unit, thereby modulating an optical signal output from the at least one waveguide unit, and a digital conversion unit which converts the modulated optical signal to a digital signal. Accordingly, a compact-sized AD convert can be realized.
    Type: Application
    Filed: August 21, 2008
    Publication date: June 4, 2009
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Young-tack HOUNG, Nam-kyoo Park, Sang-wook Kwon, In-sang Song, Jong-seok Kim, Suk-mo Koo, Sun-kyu Yu