Patents by Inventor Ji Ha Nah

Ji Ha Nah 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).

  • Digital phase alignment apparatus in consideration of metastability
    Patent number: 6031886
    Abstract: The present invention provides a digital phase alignment which to select the clock whose the transition is occured in the close vicinity of a center of the input data unit interval, the rising transition or falling transition of data are detected, as a result, to generate the synthetic clock retiming data upon detecting the transition of data having a random bit column, the retiming clock is reached in the center of eye pattern of data, compared with a single directional transition is detected.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: February 29, 2000
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Ji Ha Nah, Hee Young Jung, Bhum Cheol Lee, Kwon Chul Park