Patents by Inventor Nak Young Chong

Nak Young Chong 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).

  • Patent number: 7724191
    Abstract: An apparatus for tracing position and direction of a target object through an RF signal includes two loop antennas and a position and direction determination part. The two loop antennas receive the RF signal transmitted from the target object and are perpendicularly coupled to each other. The position and direction determination part calculates two RF signal intensities received through the respective two loop antennas for comparison, and then determines that the target object transmitting an RF signal is placed in a center direction between the two loop antennas if the two RF signal intensities are the same, and otherwise determines that the target object is placed in a front direction of the loop antenna having a relatively higher RF signal intensity.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: May 25, 2010
    Assignee: Electronics And Telecommunications Research Institute
    Inventors: Myung Sik Kim, Nak Young Chong, Hyung Wook Kim
  • Publication number: 20080224917
    Abstract: An apparatus for tracing position and direction of a target object through an RF signal includes two loop antennas and a position and direction determination part. The two loop antennas receive the RF signal transmitted from the target object and are perpendicularly coupled to each other. The position and direction determination part calculates two RF signal intensities received through the respective two loop antennas for comparison, and then determines that the target object transmitting an RF signal is placed in a center direction between the two loop antennas if the two RF signal intensities are the same, and otherwise determines that the target object is placed in a front direction of the loop antenna having a relatively higher RF signal intensity.
    Type: Application
    Filed: October 11, 2007
    Publication date: September 18, 2008
    Inventors: Myung Sik Kim, Nak Young Chong, Hyung Wook Kim