Patents by Inventor Jungsung PARK

Jungsung PARK 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: 9479229
    Abstract: A backscattering type radio frequency identification (RFID) communication system, and more particularly, a backscattering type RFID communication system in which an RFID tag transmits a signal back to an RF reader by using energy of a carrier wave transmitted by the RFID reader. Provided is a backscattering type radio frequency identification (RFID) communication system RFID communications are performed efficiently without an error while interference between RFID readers does not occur even under an overcrowded reader environment. Interference of RF signals between the RFID readers does not occur, and RFID communications can be efficiently performed even under the overcrowded reader environment. Transmitting and receiving time steps of the RFID readers do not need to be synchronized with one another so that compatibility of the RFID readers can be improved.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: October 25, 2016
    Assignee: IDRO CO., LTD.
    Inventors: Yanggi Kang, Jungsung Park, Kwangjin Oh
  • Patent number: 8565607
    Abstract: A visible light multiplex communication system is presented which includes identification (ID) information and data information which can be simultaneously transmitted and received to and from a server and a plurality of clients by using visible light. Visible light ID communication and visible light data communication do not interfere with each other in the same space during visible light communication. In addition, data can be efficiently transmitted and received to and from a plurality of ID clients using visible light. In addition, visible light ID communication and visible light data communication can be efficiently performed in a state where interference between clients using different protocols does not occur in the same place. Furthermore, a specific unit that is capable of efficiently transmitting and receiving data to and from a plurality of clients by using visible light can be provided.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: October 22, 2013
    Assignee: Idro Co., Ltd.
    Inventors: Yanggi Kang, Jungsung Park, Kwangjin Oh
  • Publication number: 20110217044
    Abstract: A visible light multiplex communication system, and more particularly, a visible light multiplex communication system in which identification (ID) information and data information can be simultaneously transmitted and received to and from a server and a plurality of clients by using visible light, is disclosed. Visible light communication can be smoothly performed in a state where visible light ID communication and visible light data communication do not interfere with each other in the same space. In addition, data can be efficiently transmitted and received to and from a plurality of ID clients and a plurality of data clients by using visible light. In addition, visible light ID communication and visible light data communication can be efficiently performed in a state where interference between a plurality of clients using different protocols does not occur in the same place.
    Type: Application
    Filed: May 20, 2011
    Publication date: September 8, 2011
    Applicant: IDRO CO., LTD.
    Inventors: Yanggi KANG, Jungsung PARK, Kwangjin OH
  • Publication number: 20110181397
    Abstract: A backscattering type radio frequency identification (RFID) communication system, and more particularly, a backscattering type RFID communication system in which an RFID tag transmits a signal back to an RF reader by using energy of a carrier wave transmitted by the RFID reader. Provided is a backscattering type radio frequency identification (RFID) communication system RFID communications are performed efficiently without an error while interference between RFID readers does not occur even under an overcrowded reader environment. Interference of RF signals between the RFID readers does not occur, and RFID communications can be efficiently performed even under the overcrowded reader environment. Transmitting and receiving time steps of the RFID readers do not need to be synchronized with one another so that compatibility of the RFID readers can be improved.
    Type: Application
    Filed: April 5, 2011
    Publication date: July 28, 2011
    Inventors: Yanggi KANG, Jungsung PARK, Kwangjin OH