Patents Assigned to Saab AB
  • Publication number: 20150243072
    Abstract: The invention relates to a method for building a 3D model of an area of interest on the surface of a planet. The method comprises providing a plurality of 2D images from satellites, where each 2D image out of the plurality of 2D images at least partly covers the area of interest. Also, each subarea of the area of interest is covered by at least two images, taken from different angles, out of the plurality of 2D images. Bundle adjustments are performed for the plurality of 2D images and the area of interest is divided into parts. For each part of the area of interest at least one combination and preferably all possible combinations out of two images covering that part of the area of interest are taken. Said two images are taken from the at least two images, taken from at least two different angles, out of the plurality of 2D images. Further, for each part of the area, point matching correspondence is established for a set of points for each such combination of two images.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 27, 2015
    Applicant: SAAB AB
    Inventors: Leif Haglund, Ola Nygren, Folke Isaksson, Johan Borg
  • Publication number: 20150243047
    Abstract: The invention relates to a method for identifying a difference between a first 3D model of an environment and a second 3D model of the environment. The first and second 3D model each comprise a plurality of points or parts, wherein each point or part of the first and second model comprises geometrical information and texture information. Corresponding points or parts of the first and second 3D model are matched based on the geometrical information and/or the texture information. The matched points or parts of the first and second model are compared to determine at least one difference value based on the geometrical information and the texture information of the first and second model. A difference between the first and second model is identified if the at least one difference value exceeds a predetermined value. The invention also relates to an arrangement, a computer program, and a computer program product.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 27, 2015
    Applicant: SAAB AB
    Inventors: Leif Haglund, Johan Borg, Ingmar Andersson, Folke Isaksson
  • Patent number: 9103629
    Abstract: The present invention describes a weapon firing simulator comprising a laser transmitter arranged to emit a light beam triggered by a simulated firing, wherein the laser transmitter has sweeping means arranged for sweeping the emitted light beam typically around the simulated projectile or missile, the laser transmitter has modifying means arranged for modifying the emitted light beam to contain information, for transmission of a simulated engagement coordinate.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: August 11, 2015
    Assignee: SAAB AB
    Inventor: Alf Axerud
  • Patent number: 9097527
    Abstract: A method for generating a route including at least one path. The method is suitable for aircraft reconnaissance of an area. The method includes encompassing the area with a geometrical figure, generating a first direction depending upon a configuration of the figure, generating the at least one path depending upon the first direction wherein the path corresponds to a sub area covering at least a part of the area.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: August 4, 2015
    Assignee: SAAB AB
    Inventors: Joakim Notstrand, Pär Norberg, Johan Ivansson, Erik Skarman
  • Publication number: 20150214613
    Abstract: The present invention relates to an antenna assembly (2, 102, 202, 302) comprising: a plurality of transmit antennas, at least one receive antenna (4), at least one shielding structure (6), and at least one frame (8), wherein the at least one frame is configured for: setting a pointing direction of a first transmit antenna (10) such that a first transmit minimum (16) of the first receive antenna (10) points towards a first zone (24), and setting a pointing direction of a second transmit antenna (12) such that a second transmit minimum (18) of the second antenna (12) points towards a second zone (26), whereby coupling of radiation from the plurality of transmit antennas to the receive antenna (4) is reduced.
    Type: Application
    Filed: November 15, 2011
    Publication date: July 30, 2015
    Applicant: SAAB AB
    Inventors: Anders Bäckman, Anders Höök
  • Patent number: 9092724
    Abstract: The invention relates to a method for decision support of a first combat aircraft in a duel situation with a second combat aircraft.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: July 28, 2015
    Assignee: SAAB AB
    Inventors: Anders Lundqvist, Vibeke Kensing
  • Patent number: 9094673
    Abstract: An arrangement and a method for providing a three dimensional map representation of an area. The arrangement includes an image generating unit and a processing unit. The image generating unit is arranged to generate time recorded images. The image generating unit is arranged to provide a plurality of at least partly overlapping images each covering at least a part of the area. The processing unit is arranged to stereo process an arbitrary number of at least partly overlapping image sets generated by the image generating unit so as to provide the three dimensional map representation. A navigation unit is arranged to output time recorded navigation states related to the image generating unit. The processing unit is arranged to, for each time recorded image to be stereo processed, associate the navigation states relating to a corresponding time record.
    Type: Grant
    Filed: July 4, 2007
    Date of Patent: July 28, 2015
    Assignee: SAAB AB
    Inventors: Kristian Lundberg, Folke Isaksson
  • Publication number: 20150207213
    Abstract: An antenna frame for reducing radar cross section of a vehicle provided with a flat microstrip patch antenna array comprising a number of microstrip patches arranged in an array pattern, the antenna frame:—being arranged to surround the outer periphery of the flat antenna array—the frame comprising a first conductive sheet;—the first conductive sheet extending from the most peripheral patches and outward in a sloping manner; wherein dielectric and magnetic absorbent material are arranged to improve impedance transition from a point of the antenna to a point on the periphery of the frame, which is also contemplated as adjoining a vehicle fuselage.
    Type: Application
    Filed: October 9, 2012
    Publication date: July 23, 2015
    Applicant: Saab AB
    Inventors: Ola Forslund, Henrik Holter
  • Publication number: 20150199623
    Abstract: A method for planning attacking targets to optimize a use of own available resources in a target area based upon information on own resources available for attacking and information on protected and non-protected targets located in the target area. Different attack tactics are collected in a first library. Different defense strategies are collected in a second library. A reward value is allotted to each target and threat in the target area. Each target and threat in the target area has a defense capability and a vulnerability. The different attack tactics for a chosen defense strategy are evaluated to find an optimal attack tactic having a highest possible accumulated value of target reward value combined with a defeat probability value. The found optimal attack tactic is utilized to create an attack plan involving information on resources needed, targets to attack and attacking directions and time delays.
    Type: Application
    Filed: May 11, 2012
    Publication date: July 16, 2015
    Applicant: SAAB AB
    Inventors: Magnus Andersson, Kristian Lundberg, Nils-Hassan Quttineh
  • Patent number: 9073636
    Abstract: A rotor damper for a tail rotor of a helicopter. A main body of a resilient material is to be arranged between a drive shaft for the tail rotor and a hub on which rotor blades for the tail rotor are coupled. A flange is connected to the main body of the rotor damper. The flange includes an abutment surface for abutting an outer surface of the hub. A tail rotor including the rotor damper.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: July 7, 2015
    Assignee: SAAB AB
    Inventors: Per-Erik Cardell, Tommy Johansson, Johan Lindroth, Kjell Stenbom
  • Patent number: 9069163
    Abstract: A head-up display system suitable for an aircraft. The head-up display including an image source arranged outside the desired field of view of an observer and where the intensity of symbols of the image source are modulated differ depending on their perceived position relative to the horizon line. A light source is arranged for providing light to an image source which is arranged to modulate the light of the light source thereby creating an image for the head up display. A brightness control unit have inputs for vehicle pitch- and roll angle, and a calculator configured to calculate, based on the pitch and roll angles, the current position in the image of a virtual horizon line, corresponding to the real horizon line as perceived by the observer, and for controlling the brightness of symbols above the virtual horizon line to be different from the brightness of symbols below the line.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: June 30, 2015
    Assignee: SAAB AB
    Inventor: Peter Schön
  • Patent number: 9067674
    Abstract: The invention regards a plasma-enhanced active laminar flow actuator system (1) adapted to an aerodynamic surface (3) which has a nano-engineered composite material layer (5) comprising a set of electrodes arranged (7?, 7?) in at least an upper (P1) and a lower (P2) plane extending parallel with the aerodynamic surface (3); the electrodes (7?, 7?) comprising nano filaments (9); the electrodes (7?) of the upper plane (P1) are arranged in the aerodynamic surface (3) such that they define a smooth and hard aerodynamic surface (3); conductors (11, 11?) of nano filaments (9?) arranged for electrical communication between a control unit (13) and each of the electrodes (7?, 7?), wherein the control unit (13) is adapted to address current between cooperating electrodes (7?, 7?) of the upper and lower plane (P1, P2) from a current supply depending upon air flow characteristic signals fed from air flow sensor means (19).
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: June 30, 2015
    Assignee: SAAB AB
    Inventors: Pontus Nordin, Göte Strindberg
  • Patent number: 9067677
    Abstract: An unmanned aerial vehicle helicopter including a dismountable tail section including a torque compensating rotor. Power transmission from the motor to the torque compensating rotor is accomplished by pulley-and-belt drive arrangements.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: June 30, 2015
    Assignee: SAAB AB
    Inventors: Per-Erik Cardell, Kjell Stenbom, Robert Lidström
  • Patent number: 9071337
    Abstract: A transmitter/receiver arrangement comprises a digital arbitrary waveform generator AWG connected to a transmitter. Said waveform generator is configured to generate an arbitrary waveform within a given bandwidth. Said transmitter/receiver arrangement further comprises an antenna arrangement configured to emit a transmitter signal, and to receive an incident signal, a receiver configured to receive a receiver signal, and an analog isolator connected to said antenna arrangement, said transmitter, and said receiver. Said analog isolator is adapted to route said transmitter signal from said transmitter to said antenna arrangement, and said incident signal from said antenna arrangement to said receiver, and to isolate said transmitter signal from said receiver signal. Said receiver is adapted to cancel any residual transmitter signal in said receiver signal by means of at least one digital model of at least said isolator, said antenna arrangement, and said transmitter.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: June 30, 2015
    Assignee: SAAB AB
    Inventor: Hans Hellsten
  • Publication number: 20150168534
    Abstract: The present invention relates to a method for determining a direction to a signal-emitting object by means of a platform comprising at least two antennas separated by a known distance. The method comprises said steps of: receiving, with each of said at least two antennas, a signal from said signal-emitting object at first positions, determining a first phase relation of said signal between said at least two antennas, receiving, with each of said at least two antennas, a signal from said signal-emitting object at at least second positions, determining at least a second phase relation of said signal between said at least two antennas, characterised by the steps of: determining change(s) in position(s) of at least one antenna of said at least two antennas, and determining a direction to a signal-emitting object based on said first phase relation, said at least second phase relation and said change(s) in position(s) of said at least one antenna.
    Type: Application
    Filed: July 3, 2012
    Publication date: June 18, 2015
    Applicant: SAAB AB
    Inventor: Sven Holte
  • Patent number: 9056415
    Abstract: A forming device and a method of manufacture of a fillet of plastic for aircraft assemblies. The fillet has a pre-determined profile for filling a cavity of a structural element. The fillet is formed using a former of a forming device. The method includes applying at least one blank of a base material of plastic between at least two opposed press beds of the former and at least one of the press beds including an elongated groove. At least one press bed is towards another press bed, until the press beds are in position for completed compression of the fillet. Each groove for forming of the fillet generates a fillet in correspondence with the pre-determined profile. The press beds are separated from each other for releasing the formed fillet. The formed fillet is removed from the former. The formed fillet is applied in the cavity.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: June 16, 2015
    Assignee: SAAB AB
    Inventors: Anders Westerdahl, Ingemar Turesson, Eva Andersson, Per Linnerstedt
  • Patent number: 9057582
    Abstract: A simulation system for use in military exercise of combat in an area having at least one building has a transmitter arranged on a firearm for simulating firing of a shot and a detector to be arranged on the body of a soldier. Sensors are adapted to sense whether the transmitter and the detector are located indoors or outdoors. The detector is designed to discriminate between normal power signals fired from outdoors and indoors, whereas the transmitters is adapted to emit signals of normal power when located outdoors and signal of normal power as well as a substantially lower power when located indoors.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: June 16, 2015
    Assignee: SAAB AB
    Inventors: Ulf Bjòrkman, Anders Holmquist
  • Patent number: 9054676
    Abstract: An active circulator for a microwave system. The microwave system includes at least one front-end arrangement. Each front-end arrangement includes a power amplifier function arranged to deliver an amplified output signal via a circulator function to an antenna in a transmit mode. A low noise amplifier function is arranged to amplify an input signal from the antenna via the circulator function in a receive mode. The circulator function is arranged to direct a signal flow between the transmit and receive modes. Each front-end arrangement includes one active circulator. The active circulator includes the power amplifier function, the low noise amplifier function and the circulator function of directing a signal flow. The functions integrated into one module. Also, a method to manufacture the active circulator.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: June 9, 2015
    Assignee: SAAB AB
    Inventors: Hans-Olof Vickes, Joakim Nilsson
  • Publication number: 20150151852
    Abstract: A landing arresting system for vertical take-off and landing aerial vehicles. A landing and take-off platform and at least one vertical take-off and landing locking member have a projecting portion arranged at a lower portion of the vehicle. The landing and take-off platform includes a plurality of individually displaceable rolls, arranged substantially in a horizontal direction, and moveable back and forth, such that the projecting portion of the locking member can be entered, retained and released between two adjacent rolls. A landing and take-off platform for vertical take-off and landing aerial vehicles and a vertical take-off and landing locking member for aerial vehicles.
    Type: Application
    Filed: July 5, 2012
    Publication date: June 4, 2015
    Applicant: SAAB AB
    Inventors: Per-Erik Cardell, Kjell Stenbom
  • Patent number: 9045228
    Abstract: An arrangement at an aircraft of a dispenser unit for countermeasures. The arrangement including a wall of an aircraft fuselage. A dispensing nozzle is arranged on the dispenser unit through which the countermeasures are dispensed. The dispenser unit is arranged within the aircraft fuselage. An aperture for dispensing the countermeasures is arranged in the wall of the aircraft fuselage. The aperture is arranged to substantially coincide with the dispensing nozzle.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: June 2, 2015
    Assignee: SAAB AB
    Inventor: Robert Melin