Patents by Inventor Hyung-Yul RYU

Hyung-Yul RYU 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).

  • Apparatus and method for stabilizing output sequence of real random number generator
    Patent number: 9841949
    Abstract: An apparatus and method that stabilizes an output sequence of a real random number generator by adjusting the input voltage of the random number generator or the comparative voltage of a comparator. The apparatus for stabilizing an output sequence of a real random number generator includes a verification unit for performing a monobit test on random number values sampled by and output from a comparison unit, and calculating an impact value. An adjustment unit adjusts a voltage of any one of a random number generation unit and the comparison unit using resulting values of the monobit test and the impact value output from the verification unit.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: December 12, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sun-Chun Park, Hyung-Yul Ryu, Young-Jun Cho
  • APPARATUS AND METHOD FOR STABILIZING OUTPUT SEQUENCE OF REAL RANDOM NUMBER GENERATOR
    Publication number: 20150227344
    Abstract: An apparatus and method that stabilizes an output sequence of a real random number generator by adjusting the input voltage of the random number generator or the comparative voltage of a comparator. The apparatus for stabilizing an output sequence of a real random number generator includes a verification unit for performing a monobit test on random number values sampled by and output from a comparison unit, and calculating an impact value. An adjustment unit adjusts a voltage of any one of a random number generation unit and the comparison unit using resulting values of the monobit test and the impact value output from the verification unit.
    Type: Application
    Filed: February 5, 2015
    Publication date: August 13, 2015
    Inventors: Sun-Chun PARK, Hyung-Yul RYU, Young-Jun CHO