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 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