Patents by Inventor Fred DeKalb

Fred DeKalb 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).

  • Over-the-ear headset
    Patent number: 7221771
    Abstract: The present invention provides an over-the-ear headset and donning method which advantageously allow for improved comfort, sound quality, and stability on the ear. In accordance with the present invention, the headset includes an earhook, and a bias structure connected to the earhook. An extension member is connected to the bias structure, and a receiver capsule is movably connected to an end of the extension member. The headset advantageously provides bias forces both behind the user's ear and substantially normal to the orientation of the user's outer ear, allowing for improved acoustic coupling to the ear and enhanced sound quality.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: May 22, 2007
    Assignee: Plantronics, Inc.
    Inventors: Fred DeKalb, Ric Baughman
  • Earbud receiver
    Patent number: D463789
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: October 1, 2002
    Assignee: Plantronics, Inc.
    Inventors: Fred DeKalb, Elizabeth Walikis, Helder T. Carvalheira, Fadhly Bey, Jeffrey T. Haller
  • Control device for a communications headset
    Patent number: D464949
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: October 29, 2002
    Assignee: Plantronics, Inc.
    Inventors: Fred DeKalb, Elizabeth Walikis, Helder T. Carvalheira, Fadhly Bey, Jeffrey T. Haller