Patents by Inventor Jeiyoung Lee

Jeiyoung 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).

  • Publication number: 20070176746
    Abstract: Provided are a radio frequency identification (RFID) reader and a RFID system. Particularly, the RFID reader uses a listen before talk (LBT) mode to identify. A reader for RFID comprises a data path block receiving a tag data signal, a search path block receiving a channel search signal, and a path selection block selecting one of the data path block and the search path block.
    Type: Application
    Filed: October 20, 2006
    Publication date: August 2, 2007
    Inventors: Jeiyoung Lee, Kyoung On Yang, Bonkee Kim, Bo-Eun Kim
  • Publication number: 20070176747
    Abstract: Provided is a reader for radio frequency identification (RFID) and a RFID system. A reader for RFID that receives a channel signal comprises a frequency oscillator generating an oscillating signal at a frequency that is offset by an offset frequency from a center frequency of the channel signal, a mixer mixing the channel signal with the oscillating signal that is offset, and a filter filtering a mixed frequency signal provided from the mixer. The reader for RFID and the RFID system are improved in reception for the wave identification using a listen before talk (LBT) mode for identifying an electronic tag.
    Type: Application
    Filed: November 3, 2006
    Publication date: August 2, 2007
    Inventors: Kyoung On Yang, Jeiyoung Lee, Bonkee Kim, Bo-Eun Kim