Patents by Inventor Ji Eun CHOI

Ji Eun 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).

  • Two-dimensional array antenna and device for detecting internal object using the same
    Patent number: 8497797
    Abstract: Provided are a two-dimensional array antenna and a device for detecting an internal object using the same. The device includes a plurality of unit antennas in a two-dimensional array of m columns and n rows on a board (where m and n are integers greater than 1), a first switch selecting one or more transmitting antenna to radiate a pulse signal onto an internal object in a structure from among the unit antennas; a second switch selecting one or more receiving antenna to collect a signal reflected from the internal object from among the unit antennas, and a transceiving analysis module analyzing information about the position and shape of the internal object.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: July 30, 2013
    Assignee: Electronics and Telecomunication Research Institute
    Inventors: Dae Heon Lee, Sung Hyun Kim, Sang Woo Cho, Ji Eun Choi
  • TWO-DIMENSIONAL ARRAY ANTENNA AND DEVICE FOR DETECTING INTERNAL OBJECT USING THE SAME
    Publication number: 20110227777
    Abstract: Provided are a two-dimensional array antenna and a device for detecting an internal object using the same. The device includes a plurality of unit antennas in a two-dimensional array of m columns and n rows on a board (where m and n are integers greater than 1), a first switch selecting one or more transmitting antenna to radiate a pulse signal onto an internal object in a structure from among the unit antennas; a second switch selecting one or more receiving antenna to collect a signal reflected from the internal object from among the unit antennas, and a transceiving analysis module analyzing information about the position and shape of the internal object.
    Type: Application
    Filed: September 9, 2010
    Publication date: September 22, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Dae Heon LEE, Sung Hyun KIM, Sang Woo CHO, Ji Eun CHOI