Patents by Inventor Joseph T. Richeson, deceased

Joseph T. Richeson, deceased 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).

  • Broadband smart antenna and associated methods
    Patent number: 7224321
    Abstract: A smart antenna includes a ground plane, an active antenna element adjacent the ground plane, and passive antenna elements adjacent the ground plane. The passive antenna elements have different sizes for defining different resonant frequencies for increasing a bandwidth of the smart antenna. Dielectric layers having different dielectric constants may also be used for coating the passive antenna elements for defining different resonant frequencies. Impedance elements are connected to the ground plane and are selectively connectable to the passive antenna elements for antenna beam steering.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: May 29, 2007
    Assignee: InterDigital Technology Corporation
    Inventors: Bing A. Chiang, Michael J. Lynch, Dee M. Richeson, legal representative, Douglas H. Wood, Joseph T. Richeson, deceased
  • Multi-mode input impedance matching for smart antennas and associated methods
    Patent number: 7180464
    Abstract: A smart antenna includes a ground plane, an active antenna element adjacent the ground plane and having a radio frequency (RF) input associated therewith, and passive antenna elements adjacent the ground plane. Impedance elements are connected to the ground plane and are selectively connectable to the passive antenna elements for antenna beam steering. Tuning elements are adjacent the passive antenna elements for tuning thereof so that an input impedance of the RF input of the active antenna element remains relatively constant during the antenna beam steering.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: February 20, 2007
    Assignee: InterDigital Technology Corporation
    Inventors: Bing A. Chiang, Dee M. Richeson, legal representative, Joseph T. Richeson, deceased