Patents Assigned to Saab AB
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Publication number: 20140126628Abstract: The present invention relates to flow control of a digital data stream that is to be transmitted with limited bit rate. The present invention provides a mix between CQ and CB. This in order to, in real time, ensure best possible quality of a data stream given a maximum available band with. This is useful both when saving a data stream to a data storage with a limited size and when playing the data stream in real time. In particular the invention relates to a method for flow control of a digital data stream that is to be sent with a limited transmission bit rate R. The method comprises encoding each data frame of a digital data stream into an encoded data frame comprising n quality layers and thereafter balancing the output of the encoder in order to achieve a constant bit rate on the output. The invention also relates to a corresponding data recorder and computer program.Type: ApplicationFiled: June 23, 2011Publication date: May 8, 2014Applicant: SAAB ABInventor: Henrik Dikvall
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Publication number: 20140109755Abstract: A decoy material dispenser. An elongated decoy material package includes an elongated strip-shaped container including a plurality of depressions receiving decoy material. A cover covers and hermitically seals the container. A gripping portion cooperates with a feeder including a gripper. A housing includes a storage section that stores the package. An outlet releases the decoy material. A waste collection section collects empty packages. A feeder device feeds the package from the storage section to the outlet and to the waste collection section. The feeder device includes a feeder and a driver. The feeder includes a gripper that cooperates with the gripping portion. The package is oriented in the dispenser such that the cover is directed towards the outlet and the container is directed away from the outlet. A force applicator applies pressure to the container. A package opener opens, cuts or perforates the package to release the decoy material.Type: ApplicationFiled: December 6, 2013Publication date: April 24, 2014Applicant: SAAB ABInventors: Gloria Stenfelt, Marie-Louise Friede, Gunnar Byström
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Patent number: 8704724Abstract: A low-radar cross section antenna structure for an active electrically scanned antenna including an active electrically scanned antenna enclosure and at least two antenna elements. The antenna elements are arranged to be mounted on a front surface of the active electrically scanned antenna enclosure and embedded in a lightweight structure. The front surface and side surfaces of the active electrically scanned antenna enclosure and the antenna elements are arranged to be covered with the lightweight structure. A thin laminate is arranged to cover an outer top surface and an outer side surface of the lightweight structure. Parts of the lightweight structure are arranged to be doped with a lossy material having dielectric, magnetic and/or resistive losses, thus making these parts of the lightweight structure absorbing for electromagnetic radiation.Type: GrantFiled: November 12, 2008Date of Patent: April 22, 2014Assignee: SAAB ABInventor: Anders Höök
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Patent number: 8704681Abstract: An arrangement for cross monitoring two independent signals. The arrangement a calculator configured to calculate a value depending upon a signal value, a drift value and a feedback value, and a determining unit configured to determine a larger of the calculated value and a first predetermined value. The arrangement also includes a comparing unit configured to compared the determine larger value with a second predetermined value and a delaying unit configured to delay the determined larger value and change status of the larger value to become an updated feedback value to be provided to the calculator. The arrangement is characterized in that the signal value includes information about an absolute value of a difference between the two independent generated signals.Type: GrantFiled: March 17, 2008Date of Patent: April 22, 2014Assignee: SAAB ABInventor: Anna Gustafsson
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Publication number: 20140103141Abstract: The present invention relates to a low signature jet engine outlet comprising movable border segments forming at least one circular arc and being movable radially for controlling the form and area of the outlet, at least one stationary border element for defining the form and area of the outlet, and movable coupling means for connecting the at least one circular arc to the at least one stationary border element. The coupling means are movable along a connection part of the at least one stationary border element, and the connection part of the at least one stationary border element is substantially flat and extending in a substantially radial direction of the at least one circular arc.Type: ApplicationFiled: June 17, 2011Publication date: April 17, 2014Applicant: SAAB ABInventor: Jakob Bjerkemo
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Patent number: 8700231Abstract: A device at an airborne vehicle including a flight control system configured to control the behavior of the airborne vehicle based on acceleration commands, a first control unit configured to provide the acceleration commands to the flight control system, and a collision avoidance unit. The collision avoidance unit includes a detection unit arranged to detect whether the airborne vehicle is on a collision course and a second control unit arranged to feed forced acceleration commands to the flight control system upon detection that the airborne vehicle is on a collision course. A method for collision avoidance in an airborne vehicle.Type: GrantFiled: December 21, 2007Date of Patent: April 15, 2014Assignee: SAAB ABInventor: Erik Skarman
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Patent number: 8695847Abstract: A dispenser unit for countermeasures. A magazine for the countermeasures is removably arranged on the dispenser unit. A dispensing nozzle dispenses the countermeasures out of the magazine. A movable seal is arranged within the magazine. The seal in a first position covers the dispensing nozzle and in a second position opens the dispensing nozzle, such that the countermeasures may be dispensed through the dispensing nozzle when the seal is in the second position.Type: GrantFiled: January 16, 2009Date of Patent: April 15, 2014Assignee: SAAB ABInventors: Benny Sjöbeck, Robert Melin, Björn Zachrisson
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Patent number: 8698668Abstract: A method for detecting targets including moving and stationary targets with a radar system equipped with Synthetic Aperture Radar (SAR) onboard a SAR platform including navigation equipment for accurate determination of the position of the SAR platform. The SAR platform is transversing a stationary ground region and targets in the ground region, in which the SAR platform obtains radar data utilizing at least one antenna. A SAR processor records the radar data and the position of the antenna or antennas for each transmitted radar pulse. Radar data within synthetic sub-apertures, are successively merged in N iteration steps into SAR images of increasing resolution of the surveyed region and wherein each iteration step includes forming a new SAR image at a new iteration level by a linear combination of neighboring SAR images in the previous iteration step. A radar system and a SAR processor used for calculating the detection and positioning of targets including moving and stationary targets.Type: GrantFiled: November 11, 2008Date of Patent: April 15, 2014Assignee: SAAB ABInventor: Hans Hellsten
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Publication number: 20140098425Abstract: A head-up display system for a vehicle facilitating the use of night vision goggles for a person in the vehicle during night vision conditions. The system includes a light source for providing light to an image source. The image source is arranged to project an image on a semi-transparent combiner mirror. The combiner mirror is arranged to superimpose the projected image onto a view of the environment in front of the vehicle by transmitting light rays from the environment and at the same time reflecting the projected image towards the eyes of an observer. The system includes a first and a second light source for alternatively providing light to the image source. The first light source is arranged to emit light of a first color to be used during daylight conditions, and the second light source is arranged to emit light of a second color to be used during night vision conditions, wherein the second color is mainly yellow or mainly orange.Type: ApplicationFiled: December 2, 2009Publication date: April 10, 2014Applicant: SAAB ABInventors: Peter Schön, Johan Zandén, Stefan Andersson
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Publication number: 20140085156Abstract: The tapered slot antenna element according to the invention comprises a tapered slot with a narrow inner part. The tapered slot antenna element further comprises a cavity for receiving a feeding probe. An inner wall of said is provided with a layer comprising an electric conductive material, and said cavity is provided with an open end. The cavity is adapted such that a feeding probe can be inserted into the cavity through the open end. The layer comprising the electric conductive material is adapted such that the coaxial field can be build up between the feeding probe and said layer of electric conductive material. Hence, said layer can be a homogenous layer or a wire netting or the like, as long as a coaxial field can be build up between the electric conductive layer and the feeding probe.Type: ApplicationFiled: December 20, 2010Publication date: March 27, 2014Applicant: SAAB ABInventors: Mussie Gebretnsae, Yvonne Jensen, Elisabeth Stenquist
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Publication number: 20140089534Abstract: The invention pertains to a configurable input/output processing device, a method for configuring the configurable input/output processing device and a computer program product for performing the steps of the method. The configurable input/output processing device (6) is arranged to control data traffic associated to a distributed avionics control system comprising a plurality of processing nodes interconnected in a network (2), wherein each of the plurality of processing nodes is connected to the network via at least one of said configurable input/output processing device. The configurable input/output processor comprise first instructions (CCR), said first instructions comprising processing information for the at least one input/output processing device and being independent of a current configuration of the distributed avionics control system and second instructions (SCT), said second instructions being dependent on the current configuration of the distributed avionics control system.Type: ApplicationFiled: May 6, 2011Publication date: March 27, 2014Applicant: SAAB ABInventors: Jan Håkegård, Torkel Danielsson, Anders Gripsborn
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Publication number: 20140070979Abstract: A method for validating received positional data in vehicle surveillance applications. A signal carrying a Mode S ES message including positional data indicating an alleged position of a vehicle, transmitted from a radio source is received with a radio direction finding antenna of a receiver. A bearing from the receiver to the radio source is estimated utilizing the radio direction finding antenna and received signal. A distance between the receiver and radio source based on a time of flight for a signal travelling between the receiver and radio source at known speed is estimated with a distance measurer including primary radar, laser detector and ranger, and/or secondary surveillance radar. An estimated position of the radio source is calculated based on the estimated bearing and distance. A deviation value indicating a deviation/coincidence between the alleged position is determined according to the received and estimated position of the radio source.Type: ApplicationFiled: November 12, 2013Publication date: March 13, 2014Applicant: SAAB ABInventors: Svante Andersson, Andreas Persson
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Publication number: 20140063037Abstract: The invention pertains to a display method, a computer program for performing steps of the display method and a display system. The display system (1) comprising: display means (2) comprising: a physical display unit (13)operable to display flight data, a display processing device (11), a graphics driver and a graphics processing device, fault detection means arranged to detect at least one fault condition associated to the display means (2). The display processing device is arranged to process a first task set associated to a normal operation mode and in parallel process a second task set associated to an emergency operation mode, wherein said display processing device is arranged to transmit information provided from the second task set to the graphics processing device in response to the detected at least one fault condition.Type: ApplicationFiled: February 17, 2011Publication date: March 6, 2014Applicant: SAAB ABInventors: Torkel Danielsson, Jan Håkegård, Anders Gripsborn, Jörgen Larsson, Anders Pettersson
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Patent number: 8662452Abstract: A structural article including an outer surface that serves as an aerodynamic surface when the structural article is subjected for an air stream. A resin matrix laminate includes an upper ply and a bottom ply. A heating element is arranged in contact with the bottom ply and coupled to a power supply unit in purpose to deice/anti-ice the outer surface. Each ply includes a thermally conductive filament structure having a filament orientation such that the prolongation of the filaments has an extension essentially perpendicular to the extension of the laminate. The thermally conductive filament structure of the upper ply is embedded in the upper ply in such way that at least a portion of the thermally conductive filament structure is exposed in the outer surface.Type: GrantFiled: January 14, 2010Date of Patent: March 4, 2014Assignee: SAAB ABInventors: Per Hallander, Mikael Petersson, Björn Weidmann, Tommy Grankäll, Göte Strindberg, Pontus Nordin
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Publication number: 20140049426Abstract: An electrically steerable antenna arrangement comprising at least a first antenna function and a second antenna function, each antenna function comprising at least one antenna element, the antenna functions having at least one main radiation lobe that is electrically steerable, where each antenna function comprises at least one signal altering means arranged for altering the time characteristics and/or phase characteristics and/or frequency characteristics of a signal fed through the signal altering means, the electrically steerable antenna arrangement comprising a control unit arranged for feeding a signal comprising control information to the antenna functions via a control connection, the signal altering means being arranged to take certain settings in dependence of the control information, such that for certain settings of the signal altering means, a certain angular direction of said main radiation lobe in relation to an antenna reference plane is acquired.Type: ApplicationFiled: April 26, 2011Publication date: February 20, 2014Applicant: SAAB ABInventors: Stefan Eriksson, Magnus Isacsson, Claes Nylund
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Patent number: 8647520Abstract: The present invention relates to a method and an arrangement for restoring strength and wear resistant of a metallic matrix ceramic (1) comprising a metallic binder (2) and ceramic filler (3) particles, which metallic matrix ceramic (1) has been exposed for long term high temperature and pressure cycling, for example in a gas exhaust nozzle (6), whereby micro cracks (4) are developed in the outer layer (5) of the metallic binder (2) According to the invention this is achieved by virtue of the fact that the outer layer (5) of the metallic binder (2), partly or fully, is removed from the MMC part (1) by a chemical operation, where after the outer layer (5) is compressed by a compression operation for achieving a dense outer layer (5), in which filler (3) particles are close to each other.Type: GrantFiled: December 10, 2009Date of Patent: February 11, 2014Assignee: SAAB ABInventor: Håkan Strömberg
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Publication number: 20140035652Abstract: The present invention relates to a signal directing means (1, 1?, 1?, 36) for dividing or combining signals. It comprises a bottom row first port (2), a first row first and second port (3, 4),and a bottom row signal connector (5).The signal directing means (1, 1?,1?, 36) further comprises a first row first and second amplifier (9; 9?; 10; 10?), each first row amplifier (9, 10; 9?, 10?) having a corresponding first and second terminal (9a, 10a; 9a?, 10a; 9b, 10b; 9b?, 10b), said first terminals (9a, 10a; 9a?, 10a?) being connected along the bottom row signal connector (5). The signal directing means (1, 1?, 1?, 36)also comprises a first row signal connector (11), where said second terminals (9b, 10b; 9b?, 10b) are connected along the first row signal connector (11). The second terminal (9b; 9b?) of the first row first amplifier (9, 9?) is connected to the first row first port (3) and the second terminal (10b; 10b?) of the first row second amplifier (10; 10?) is connected to the first row second port (4).Type: ApplicationFiled: March 24, 2011Publication date: February 6, 2014Applicant: SAAB ABInventors: Mattias Ferndahl, Hans-Olof Vickes
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Patent number: 8632710Abstract: The present invention relates to a method for the manufacture of a composite article comprising a composite plate (1) and at least one fitting (4). The method is characterized by the steps of arranging at least one former on said composite plate (1), arranging at least one fitting (4) on said composite plate (1), producing a lay-up by applying a composite material layer (9) least partly covering an external surface of the former and of the fitting, and curing the layup in a curing process. After curing, said composite material layer (9) forms the walls of a stiffener and at least partly encloses the fitting so as to support it in a predetermined position.Type: GrantFiled: August 16, 2006Date of Patent: January 21, 2014Assignee: SAAB ABInventors: Mikael Petersson, Björn Weidmann, Max Krogager, Ingemar Turesson
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Patent number: 8622014Abstract: A system for interconnecting a mother ship with a submersible vehicle using a cable towed by the mother ship. The cable has a first cable end connected to the mother ship and a second cable end to be connected to the submersible vehicle. The second cable end is provided with a first connector. A capturing mast is arranged at the submersible vehicle for capturing the cable towed by the mother ship. A connector holder is arranged at the submersible vehicle for holding the first connector when it is to be connected to a second connector. The second connector is connected to the submersible vehicle. A first guide is arranged at the submersible vehicle for guiding the first connector towards the connector holder of the submersible vehicle. A second guide turns the connector to a well defined position into the connector holder.Type: GrantFiled: January 22, 2009Date of Patent: January 7, 2014Assignee: SAAB ABInventor: Lars Lundberg
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Patent number: 8616882Abstract: A method including measuring a physical quantity having a magnitude that changes in time as a result of a fire shot event so as to obtain a measurement signal, and comparing the measurement signal with a predetermined time-domain fingerprint for said quantity, which fingerprint is characteristic of the way the quantity varies in time upon a fire shot event, in order to confirm the occurrence of a fire shot event in case the measurement signal and the fingerprint match.Type: GrantFiled: July 8, 2008Date of Patent: December 31, 2013Assignee: SAAB ABInventors: Michel Chedid, Mats Forselius, Stefan Dahlqvist, Anders Isaksson, Ingemar Emricson