Patents by Inventor Howard William Johnson

Howard William Johnson 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: 6342859
    Abstract: Extendable ground arrangement for an antenna system in a radio communication device to be operating at within one or more frequency bands. The ground arrangement includes support means (1), e.g., a slide or flap, carrying conductive ground extension means (4). The support means has fastening means (5) for slidably or rotatably connecting the ground extension means to the radio communication device, wherein the ground extension means is adapted to radiate at at least said first frequency and to couple, e.g., capacitively, to main ground means located in the radio communication device adjacent to said first edge. When extended the extendable ground means provides improved gain and SAR reduction.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: January 29, 2002
    Assignee: Allgon AB
    Inventors: Hans Peter Kurz, Howard William Johnson, II
  • Patent number: 6075500
    Abstract: Antenna means for a portable radio communication device is disclosed. It includes a radiating first element having a meander geometry being relatively flat and without any complete loops or turns, a radiating second element having a meander, helical, rectangular or straight geometry. The first and second elements interact to provide one or more modes of antenna operation and the first element feeds the second element in at least one operational mode. Further, an extendable and retractable feature of the second element is disclosed, as well as an antenna adapter for external connection of the inventive antenna means to an auxiliary antenna.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: June 13, 2000
    Assignee: Allgon AB
    Inventors: Hans Peter Kurz, Howard William Johnson