Patents by Inventor Chan-Ping Edwin.Lim

Chan-Ping Edwin.Lim 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).

  • RFID portal array antenna system
    Patent number: 7528726
    Abstract: This invention provides an array antenna for a radio frequency identification (RFID) system, the array antenna comprises a transmission line with a longitudinal span proximately equaling to a height of a space desired to be covered by the array antenna, the transmission line having a terminal coupled to a RFID reader, and a plurality of radiating elements disposed on the first transmission line along the longitudinal span, additionally, reflective materials used behind the array antenna to maximize the illumination in the desired space and absorptive materials installed surrounding the desired space, in order to minimize the illumination of the undesired space surrounding the desired space.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: May 5, 2009
    Assignee: YEON Technologies Co., Ltd.
    Inventors: Teh-Hong Lee, Walter D. Burnside, Robert J. Burkholder, Chan-Ping Edwin Lim
  • RFID shelf antennas
    Patent number: 7525487
    Abstract: This invention provides a shelf antenna system for radio frequency identification (RFID) applications, the shelf antenna system comprises a plurality of substantially horizontal shelves, and a distributed antenna having a single feed terminal and a plurality of radiating elements, the distributed antenna being mounted next to the plurality of substantially horizontal shelves, wherein the entire shelf space of the plurality of substantially horizontal shelves are covered by radiations from the distributed antenna.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: April 28, 2009
    Assignee: YEON Technologies Co., Ltd.
    Inventors: Walter D. Burnside, Robert J. Burkholder, Chan-Ping Edwin.Lim
  • RFID Shelf Antennas
    Publication number: 20080284654
    Abstract: This invention provides a shelf antenna system for radio frequency identification (RFID) applications, the shelf antenna system comprises a plurality of substantially horizontal shelves, and a distributed antenna having a single feed terminal and a plurality of radiating elements, the distributed antenna being mounted next to the plurality of substantially horizontal shelves, wherein the entire shelf space of the plurality of substantially horizontal shelves are covered by radiations from the distributed antenna.
    Type: Application
    Filed: May 17, 2007
    Publication date: November 20, 2008
    Inventors: Walter D. Burnside, Robert J. Burkholder, Chan-Ping Edwin-Lim
  • RFID Portal Array Antenna System
    Publication number: 20070273529
    Abstract: This invention provides an array antenna for a radio frequency identification (RFID) system, the array antenna comprises a transmission line with a longitudinal span proximately equaling to a height of a space desired to be covered by the array antenna, the transmission line having a terminal coupled to a RFID reader, and a plurality of radiating elements disposed on the first transmission line along the longitudinal span, additionally, reflective materials used behind the array antenna to maximize the illumination in the desired space and absorptive materials installed surrounding the desired space, in order to minimize the illumination of the undesired space surrounding the desired space.
    Type: Application
    Filed: May 24, 2007
    Publication date: November 29, 2007
    Inventors: Teh-Hong Lee, Walter D. Burnside, Robert J. Burkholder, Chan-Ping Edwin Lim