Patents by Inventor Per-Olof Persson

Per-Olof Persson 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: 9423506
    Abstract: A method for improving an accuracy of a radio based navigation system by correcting the position given by the radio based navigation system with a correction vector derived from localization data stored in a map database. Position coordinates of the radio based navigation system are measured. A set of 3D map data is selected based upon the measured position coordinates of the radio based navigation system position coordinates. The actual position is determined from the selected 3D map data. The actual position data coordinates are retrieved from the 3D map data based upon the determined actual position. The correction vector is calculated from position difference between measured radio based navigation system position coordinates and retrieved actual position coordinates. The position given by the radio based navigation system is corrected with the correction vector.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: August 23, 2016
    Assignee: SAAB AB
    Inventors: Per-Olof Persson, Rolf Michel
  • Publication number: 20150220668
    Abstract: Disclosed are techniques for representing and modeling systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.
    Type: Application
    Filed: December 23, 2014
    Publication date: August 6, 2015
    Inventors: Lars Langemyr, Daniel Bertilsson, Ame Nordmark, Per-Olof Persson, Jerome Long
  • Publication number: 20150051827
    Abstract: A method for improving an accuracy of a radio based navigation system by correcting the position given by the radio based navigation system with a correction vector derived from localization data stored in a map database. Position coordinates of the radio based navigation system are measured. A set of 3D map data is selected based upon the measured position coordinates of the radio based navigation system position coordinates. The actual position is determined from the selected 3D map data. The actual position data coordinates are retrieved from the 3D map data based upon the determined actual position. The correction vector is calculated from position difference between measured radio based navigation system position coordinates and retrieved actual position coordinates. The position given by the radio based navigation system is corrected with the correction vector.
    Type: Application
    Filed: September 16, 2011
    Publication date: February 19, 2015
    Applicant: SAAB AB
    Inventors: Per-Olof Persson, Rolf Michel
  • Patent number: 8954302
    Abstract: Disclosed are techniques for representing and modeling systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: February 10, 2015
    Assignee: Comsol AB
    Inventors: Lars Langemyr, Daniel Bertilsson, Arne Nordmark, Per-Olof Persson, Jerome Long
  • Publication number: 20130141540
    Abstract: A target locating method and a target locating system. Images of a target area are recorded utilizing recording devices carried by a vehicle. The recorded images of the target area are matched with a corresponding three dimensional area of a three dimensional map including transferring a target indicator from the recorded images of the target area to the three dimensional map of the corresponding target area. The coordinates of the target indicator position are read in the three dimensional map. The read coordinates of the target indicator position are made available for position requiring equipment.
    Type: Application
    Filed: June 18, 2010
    Publication date: June 6, 2013
    Applicant: SAAB AB
    Inventors: Per-Olof Persson, Folke Isaksson, Leif Haglund
  • Patent number: 8457932
    Abstract: Disclosed are techniques for representing and modeling systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: June 4, 2013
    Assignee: Comsol AB
    Inventors: Lars Langemyr, Daniel Bertilsson, Arne Nordmark, Per-Olof Persson, Jerome Long
  • Patent number: 7623991
    Abstract: Disclosed is a system for representing and modeling one or more systems in which each system corresponds to an application mode. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: November 24, 2009
    Assignee: Comsol AB
    Inventors: Lars Langemyr, Magnus Marklund, Arne Nordmark, Per-Olof Persson, Magnus Ringh
  • Publication number: 20090259447
    Abstract: Disclosed are techniques for representing and modeling one or more systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.
    Type: Application
    Filed: June 19, 2009
    Publication date: October 15, 2009
    Applicant: Comsol AB
    Inventors: Lars Langemyr, Daniel Bertilsson, Ame Nordmark, Per-Olof Persson, Jerome Long
  • Patent number: 7596474
    Abstract: Disclosed are techniques for representing and modeling one or more systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: September 29, 2009
    Assignee: Comsol AB
    Inventors: Lars Langemyr, Daniel Bertilsson, Arne Nordmark, Per-Olof Persson, Jerome Long
  • Patent number: 7519518
    Abstract: Disclosed are techniques for representing and modeling one or more systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: April 14, 2009
    Assignee: Comsol AB
    Inventors: Lars Langemyr, Daniel Bertilsson, Arne Nordmark, Per-Olof Persson, Jerome Long
  • Publication number: 20040034514
    Abstract: Disclosed are techniques for representing and modeling one or more systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.
    Type: Application
    Filed: January 9, 2002
    Publication date: February 19, 2004
    Inventors: Lars Langemyr, Daniel Bertilsson, Arne Nordmark, Per-Olof Persson, Jerome Long
  • Publication number: 20030105614
    Abstract: Disclosed are techniques for representing and modeling one or more systems in which each system corresponds to an application mode. This may be done for one or more geometries using local and/or non-local couplings. For each application mode, physical quantities are modeled and may be defined using a graphical user interface. Physical properties may be used to model the physical quantities of each system. The physical properties may be defined in terms of numerical values or constants, and mathematical expressions that may include numerical values, space coordinates, time coordinates, and actual physical quantities. Physical quantities and any associated variables may apply to some or all of a geometric domain, and may also be disabled in other parts of a geometrical domain. Partial differential equations describe the physical quantities. One or more application modes may be combined using an automated technique into a combined system of partial differential equations as a multiphysics model.
    Type: Application
    Filed: November 27, 2001
    Publication date: June 5, 2003
    Inventors: Lars Langemyr, Daniel Bertilsson, Arne Nordmark, Per-Olof Persson, Jerome Long
  • Patent number: 5907117
    Abstract: The present invention relates to a method and device for combating identified targets (F) using warheads (2) from a launching vehicle (1) flying over a target area, by separating from this launching vehicle (1) warheads (2) which act independently after separation, and including those targets which lie close to the flight trajectory of the launching vehicle (1) and those which lie well to the side of same flight trajectory. The invention is based on the use of that part of the kinetic energy of the launching vehicle (1) which the warhead (2) takes over from the same when it is separated in order to give the warhead (2) a looping trajectory or any other programmed flight trajectory, which carries it up to a starting height adapted to its active use, which lies considerably above the actual flight trajectory of the launching vehicle (1), and which, if so required, can carry the warhead (2) back to the geographical position where it was separated from the launching vehicle (1).
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: May 25, 1999
    Assignee: Bofors AB
    Inventors: Per-Olof Persson, Lars Paulsson, Stig Johnsson
  • Patent number: 4858532
    Abstract: The disclosure relates to a submunition disposed to be separated from an aeronautical body, for example a shell carrier canister or the like above a target area, the submunition essentially including a warhead (5), a target detector (6) and a device which imparts rotation to the submunition for scanning the target area in a helical pattern (4) during the fall of the submunition towards the target area. The target detector (6) is pivotally disposed on a carrying shaft (12a) parallel to the line of symmetry (5a) of the warhead in order to permit outward activation of the target detector (6) from a collapsed position where the optical axis of the target detector coincides with the line of symmetry (5a) of the warhead to an activated position where the optical axis of the target detector is parallel with the line of symmetry (5a) of the warhead, so as to permit free scanning vision for the target detector (6) beyond the warhead (5).
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: August 22, 1989
    Assignee: Aktiebolaget Bofors
    Inventors: Per-Olof Persson, Kjell Albrektsson, Jan Axinger, Jan-Olof Fixell, Jari Hyvarinen
  • Patent number: 4829903
    Abstract: A device for reducing the rotational speed of an ammunition unit, for instance a submunition unit, and at the same time imparting to the ammunition unit a lateral speed includes a body arranged to be swung out from the ammunition unit and be released in a specific outswung position. The body preferably consists of a band which is wrapped about the outer peripheral surface of the ammunition unit. One end of the band is fixed to the ammunition unit in such a way that the band is released in a specific outswung position.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: May 16, 1989
    Assignee: Aktiebolaget Bofors
    Inventors: Jan Axinger, Bernt-Olov Bergman, Ingemar Johansson, Tomas Lonnermo, Lars Paulsson, Per-Olof Persson