Patents by Inventor Hee Chai Kang

Hee Chai Kang 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 locked loop, electronic device including the same, and method of operating the same
    Patent number: 8049543
    Abstract: A delay locked loop controls a plurality of delay blocks included in a delay line and thus generate a plurality of clock signals which have a frequency obtained by multiplying a frequency of a reference clock signal, an accurate phase delay, and a constant duty cycle. The delay locked loop calculates an initial delay value and applies it to the delay blocks, thereby preventing harmonic locking and reducing locking time.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 1, 2011
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Hee Chai Kang, Kyeong Ho Ryu, Seong Ook Jung, Won Lee, Dong Hwan Lee, Alex Joo, Jong-Ryun Choi
  • Delay locked loop, electronic device including the same, and method of operating the same
    Publication number: 20100194456
    Abstract: A delay locked loop controls a plurality of delay blocks included in a delay line and thus generate a plurality of clock signals which have a frequency obtained by multiplying a frequency of a reference clock signal, an accurate phase delay, and a constant duty cycle. The delay locked loop calculates an initial delay value and applies it to the delay blocks, thereby preventing harmonic locking and reducing locking time.
    Type: Application
    Filed: December 2, 2009
    Publication date: August 5, 2010
    Applicants: Industry-Academic Cooperation Foundation, Yonsei University, Samsung Electronics Co., Ltd.
    Inventors: Hee Chai Kang, Kyeong Ho Ryu, Seong Ook Jung, Won Lee, Dong Hwan Lee, Alex Joo, Jong Ryun Choi