Patents by Inventor HOON-KOO LEE

HOON-KOO LEE 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).

  • Delay cell and delay line having the same
    Patent number: 9859880
    Abstract: A delay cell includes first through fifth inversion circuits. The first inversion circuit inverts an input signal, and an output electrode of the first inversion circuit is coupled to a first node. The second inversion circuit is turned on in response to a control signal, and inverts the input signal when turned on. An output electrode of the second inversion circuit is coupled to the first node. The third inversion circuit inverts a signal at the first node, and an output electrode of the third inversion circuit is coupled to a second node. The fourth inversion circuit is turned on in response to the control signal, and inverts the signal at the first node when turned on. An output electrode of the fourth inversion circuit is coupled to the second node. The fifth inversion circuit inverts a signal at the second node to generate an output signal.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: January 2, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwan-Yeob Chae, Sang-Hoon Joo, Sang-Hune Park, Jong-Ryun Choi, Hoon-Koo Lee
  • DELAY CELL AND DELAY LINE HAVING THE SAME
    Publication number: 20170111033
    Abstract: A delay cell includes first through fifth inversion circuits. The first inversion circuit inverts an input signal, and an output electrode of the first inversion circuit is coupled to a first node. The second inversion circuit is turned on in response to a control signal, and inverts the input signal when turned on. An output electrode of the second inversion circuit is coupled to the first node. The third inversion circuit inverts a signal at the first node, and an output electrode of the third inversion circuit is coupled to a second node. The fourth inversion circuit is turned on in response to the control signal, and inverts the signal at the first node when turned on. An output electrode of the fourth inversion circuit is coupled to the second node. The fifth inversion circuit inverts a signal at the second node to generate an output signal.
    Type: Application
    Filed: October 11, 2016
    Publication date: April 20, 2017
    Inventors: KWAN-YEOB CHAE, SANG-HOON JOO, SANG-HUNE PARK, JONG-RYUN CHOI, HOON-KOO LEE