Patents by Inventor Torsten Östervall

Torsten Östervall 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).

  • Publication number: 20100149050
    Abstract: The present invention relates to an antenna device comprising a dielectric carrier, a flexible film and a radiating element, wherein the flexible film is arranged on the dielectric carrier and the radiating element is arranged between the dielectric carrier and the flexible film.
    Type: Application
    Filed: April 29, 2008
    Publication date: June 17, 2010
    Applicant: Laird Technologies AB
    Inventors: Torsten Östervall, Ulf Palin
  • Patent number: 7671815
    Abstract: A multi-band antenna device for a portable radio communication device has first and second radiating elements (10, 20). A controllable switch (30) is arranged between the radiating elements for selectively interconnecting and disconnecting thereof. The state of the switch is controlled by means of a control voltage input (VSwitch). A filter (40) that blocks radio frequency signals is arranged between the feeding portion and the control voltage input. A DC blocking arrangement (50) is arranged between a grounding portion (14) on the first radiating element and ground wherein the first and second radiating element are generally planar and arranged at a predetermined distance above a ground plane. By means of this arrangement, two broad and spaced apart frequency bands are obtained with retained performance and small overall size of the antenna device. A communication device comprising such an antenna device is also provided.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: March 2, 2010
    Assignee: Laird Technologies, AB
    Inventors: Anders Thornell-Pers, Torsten Östervall
  • Patent number: 7259728
    Abstract: A retractable antenna having an elongated radiating element with an upper portion and a lower portion is provided. A slide tube is coupled to the lower portion such that the elongated radiating element is movable with respect to the slide tube. A compressible contact is provided on a bottom portion of the lower portion. The compressible contact is compressed by an inner sidewall of the slide tube at least when the elongated radiating element is in the extended position to facilitate maintaining the elongated radiating element in the extended position and provide an electrical connection between the elongated radiating member and the slide tube.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: August 21, 2007
    Assignee: Laird Technologies, Inc.
    Inventor: Torsten Östervall
  • Patent number: 6894649
    Abstract: The present invention relates to an antenna arrangement for a portable radio communication device including a casing, said casing housing a generally planar printed circuit (1) board defining a ground plane device. The antenna arrangement comprises: a first antenna element (4; 5) for transmission of radio signals mountable within said casing and connectable to said printed circuit board; and a second antenna element (7; 9; 11) for reception of radio signals mountable within said casing and connectable to said printed circuit board. The first antenna element, when mounted above said printed circuit board, has a projection on said printed circuit board, which is perpendicular to a plane parallel to said generally planar printed circuit board, wherein said first antenna element has a size and is positioned such that said printed circuit board extends, in all directions of said plane, farther than the projection, at least by a distance of one millimeter.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: May 17, 2005
    Assignee: AMC Centurion AB
    Inventor: Torsten Östervall