Patents by Inventor Cornelius du Toit

Cornelius du Toit 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: 7187288
    Abstract: An embodiment of the present invention provides an RFID tag reading system, comprising an antenna system associated with a portal through which said RFID tag may pass, said antenna system comprising: a plurality of non-uniformly spaced antenna elements arranged substantially linearly; a power divider for dividing transmit power thereby coupling signals to said plurality of antenna elements; and a beamforming network capable of phase shifting the signals between the power divider and the plurality of antenna elements such that radiated signals from each antenna element add coherently such that the radiated electromagnetic energy is focused at a focal point in the near field region or in the Fresnel region of said antenna system.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: March 6, 2007
    Assignee: Paratek Microwave, Inc.
    Inventors: Greg Mendolia, John Kvarnstrand, Bing Foo, Cornelius du Toit, Nicolaas du Toit