Patents by Inventor Young Hoon Yu

Young Hoon Yu 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).

  • Time slot allocation apparatus and method for preventing collisions between time slots in TDMA-based RFID network
    Patent number: 8325017
    Abstract: The present invention relates to a time slot allocation apparatus and method for preventing collisions between time slots in a TDMA-based RFID network. The time slot allocation apparatus allocates time slots, obtained by dividing a same frequency band into unit time slots, to RFID readers for reading identification codes of RFID tags (10) in the TDMA-based RFID network. A time slot allocation device (33a) allocates time slots required for communication with the RFID tags to a plurality of RFID readers (20) provided in the RFID network. A collision prevention device (33b) performs control such that the time slot allocation device allocates time slots to the plurality of RFID readers while distributing different and non-successive time slots to adjacent RFID readers, thus preventing collisions from occurring between time slots allocated to the RFID readers.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: December 4, 2012
    Assignee: INHA-Industry Partnership Institute
    Inventors: Geun Sik Jo, Seung Bo Park, Young Hoon Yu
  • TIME SLOT ALLOCATION APPARATUS AND METHOD FOR PREVENTING COLLISIONS BETWEEN TIME SLOTS IN TDMA-BASED RFID NETWORK
    Publication number: 20100176926
    Abstract: The present invention relates to a time slot allocation apparatus and method for preventing collisions between time slots in a TDMA-based RFID network. The time slot allocation apparatus allocates time slots, obtained by dividing a same frequency band into unit time slots, to RFID readers for reading identification codes of RFID tags (10) in the TDMA-based RFID network. A time slot allocation device (33a) allocates time slots required for communication with the RFID tags to a plurality of RFID readers (20) provided in the RFID network. A collision prevention device (33b) performs control such that the time slot allocation device allocates time slots to the plurality of RFID readers while distributing different and non-successive time slots to adjacent RFID readers, thus preventing collisions from occurring between time slots allocated to the RFID readers.
    Type: Application
    Filed: November 16, 2007
    Publication date: July 15, 2010
    Applicant: INHA-INDUSTRY PARTNERSHIP INSTITUTE
    Inventors: Geun Sik Jo, Seung Bo Park, Young Hoon Yu