Patents by Inventor Sungphil CHOI

Sungphil CHOI 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).

  • Derivative receiver
    Patent number: 11031053
    Abstract: A derivative receiver includes a differentiator configured to differentiate an input signal; a comparator configured to produce a comparison signal by comparing a derivative signal produced using an output from the differentiator with a threshold voltage; and a pattern detecting equalizer configured to output a data signal by sampling an equalization signal generated by adjusting a level of the comparison signal. The level of the comparison signal is adjusted according to a past value of the data signal.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: June 8, 2021
    Assignees: SK hynix Inc., Seoul National University R&DB Foundation
    Inventors: Sungphil Choi, Suhwan Kim
  • DERIVATIVE RECEIVER
    Publication number: 20210104265
    Abstract: A derivative receiver includes a differentiator configured to differentiate an input signal; a comparator configured to produce a comparison signal by comparing a derivative signal produced using an output from the differentiator with a threshold voltage; and a pattern detecting equalizer configured to output a data signal by sampling an equalization signal generated by adjusting a level of the comparison signal. The level of the comparison signal is adjusted according to a past value of the data signal.
    Type: Application
    Filed: May 11, 2020
    Publication date: April 8, 2021
    Inventors: Sungphil CHOI, Suhwan KIM
  • Receiver resilient to noise input
    Patent number: 9991858
    Abstract: A receiver includes a signal receiving part suitable for outputting a signal corresponding to a reception signal that is received through an input terminal, and controlling a DC voltage of a signal to be outputted, according to an offset signal, an amplifying part suitable for amplifying and outputting an output of the signal receiving part, and a feedback control part suitable for controlling the offset signal according to an output of the amplifying part.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: June 5, 2018
    Assignees: SK HYNIX INC., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sungphil Choi, Mino Kim, Suhwan Kim, Deog-Kyoon Jeong
  • RECEIVER RESILIENT TO NOISE INPUT
    Publication number: 20180062594
    Abstract: A receiver includes a signal receiving part suitable for outputting a signal corresponding to a reception signal that is received through an input terminal, and controlling a DC voltage of a signal to be outputted, according to an offset signal, an amplifying part suitable for amplifying and outputting an output of the signal receiving part, and a feedback control part suitable for controlling the offset signal according to an output of the amplifying part.
    Type: Application
    Filed: May 2, 2017
    Publication date: March 1, 2018
    Inventors: Sungphil CHOI, Mino KIM, Suhwan KIM, Deog-Kyoon JEONG