Patents Assigned to Fraunhofer
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Patent number: 8712059Abstract: An apparatus for merging a first spatial audio stream with a second spatial audio stream to obtain a merged audio stream comprising an estimator for estimating a first wave representation comprising a first wave direction measure and a first wave field measure for the first spatial audio stream, the first spatial audio stream having a first audio representation and a first direction of arrival. The estimator being adapted for estimating a second wave representation comprising a second wave direction measure and a second wave field measure for the second spatial audio stream, the second spatial audio stream having a second audio representation and a second direction of arrival.Type: GrantFiled: February 11, 2011Date of Patent: April 29, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Giovanni Del Galdo, Fabian Kuech, Markus Kallinger, Ville Pulkki, Mikko-Ville Laitinen, Richard Schultz-Amling
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Patent number: 8707729Abstract: The invention relates to an adsorber element for a heat exchanger and an adsorption heat pump or adsorption refrigerator that contains at least one such adsorber element. The adsorber element includes a heat-conducting solid body and a sorption material for a vaporous adsorbate arranged on the surface of this solid body. A fluid-tight foil composite is arranged on the outer surface of the open-pore solid body, at least in the areas in which a contact with a heat transfer fluid is provided, wherein this adsorber element is embodied such that the heat exchange between the open-pore solid body and the heat transfer fluid can take place via the fluid-tight foil composite.Type: GrantFiled: February 26, 2007Date of Patent: April 29, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Ferdinand Schmidt, Hans-Martin Henning, Gunther Munz, Gerald Rausch, Andrea Berg, Norbert Rodler, Cornelia Stramm
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Patent number: 8708115Abstract: A device is described for vibration damping, which is attachable on a mechanical structure or integratable therein, having at least one mass which is indirectly or directly operationally linked to the structure via elastic means, referred to as the so-called damper mass, and at least one actuator for changing a stiffness which can be associated with the elastic means. The invention provides an electrical power source, which is capable of generating electrical power exclusively using an oscillating relative movement resulting along the operational link between the damper mass and the structure, and a regulating unit, which is connected to the electrical power source, which activates the at least one actuator as a function of the vibration behavior of the structure based upon a vibration damping rule.Type: GrantFiled: April 25, 2008Date of Patent: April 29, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Sven Herold, Dirk Mayer
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Publication number: 20140112707Abstract: The invention relates to a system for connecting a first load-bearing component (1) to a second load-bearing component (2) in order to form a flexurally rigid frame corner, having a first connecting plate (12), which is arranged on the first component (1), and a second connecting plate (22), which is arranged on the second component (2), wherein a. the connecting plates (12, 22) each contain a first bore, in which a bolt element (3) is introduced in order to form a defined axis of rotation, b. the connecting plates (12, 22) contain further, mutually correspondingly arranged apertures (14, 24), in which is arranged at least one screw (4) which braces the connecting plates (12, 22) against one another, and c. the further apertures (14, 24) and the at least one screw (4) are dimensioned such that rotation is possible through a defined angle of rotation about the axis of rotation.Type: ApplicationFiled: October 17, 2013Publication date: April 24, 2014Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Norbert Ruether, Bohumil Kasal
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Publication number: 20140112372Abstract: Embodiments of the present invention provide a device for measuring a temperature of a power semiconductor, having means for applying an alternating voltage to the power semiconductor, and means for measuring an impedance between the control terminal of the power semiconductor and the channel terminal of the power semiconductor, the impedance being dependent on a temperature-dependent control resistor integrated in the power semiconductor.Type: ApplicationFiled: December 26, 2013Publication date: April 24, 2014Applicants: ECPE Engineering Center for Power Electronics GmbH, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Eckart HOENE, Thomas BAUMANN, Oleg ZEITER
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Patent number: 8705573Abstract: More customization and adaptation of coded data streams may be achieved by processing the information signal such that the various syntax structures obtained by pre-coding the information signal are placed into logical data packets, each of which being associated with a specific data packet type of a predetermined set of data packet types, and by defining a predetermined order of data packet types within one access unit of data packets. The consecutive access units in the data stream may, for example, correspond to different time portions of the information signal. By defining the predetermined order among the data packet types it is possible, at decoder's side, to detect the borders between successive access units even when removable data packets are removed from the data stream on the way from the data stream source to the decoder without incorporation of any hints into the reminder of the data stream.Type: GrantFiled: June 1, 2012Date of Patent: April 22, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Thomas Wiegand
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Patent number: 8706510Abstract: An audio decoder for providing a decoded audio information includes a arithmetic decoder for providing a plurality of decoded spectral values on the basis of an arithmetically-encoded representation of the spectral values and a frequency-domain-to-time-domain converter for providing a time-domain audio representation using the decoded spectral values. The arithmetic decoder is configured to select a mapping rule describing a mapping of a code value onto a symbol code in dependence on a context state. The arithmetic decoder is configured to determine or modify the current context state in dependence on a plurality of previously-decoded spectral values. The arithmetic decoder is configured to detect a group of a plurality of previously-decoded spectral values, which fulfill, individually or taken together, a predetermined condition regarding their magnitudes, and to determine the current context state in dependence on a result of the detection. An audio encoder uses similar principles.Type: GrantFiled: April 18, 2012Date of Patent: April 22, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Guillaume Fuchs, Vignesh Subbaraman, Nikolaus Rettelbach, Markus Multrus, Marc Gayer, Patrick Warmbold, Christian Griebel, Oliver Weiss
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Patent number: 8705319Abstract: An apparatus for resolving an ambiguity from a DOA estimate includes a DOA estimate analyzer for analyzing the DOA estimate to obtain a plurality of ambiguous analysis parameters by using a bias information, the bias information representing a relation between a biased and an unbiased DOA estimate, and an ambiguity resolver for resolving the ambiguity in the plurality of ambiguous analysis parameters to obtain a non-ambiguous resolved parameter.Type: GrantFiled: February 25, 2013Date of Patent: April 22, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Markus Kallinger, Giovanni Del Galdo, Fabian Küch, Oliver Thiergart, Dirk Mahne, Achim Kuntz, Richard Schultz-Amling
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Patent number: 8701472Abstract: The spatial center of mass and a mass of an object can be determined by orientating the suspended object in at least two different spatial positions and measuring the orientation of the object in each of the different spatial positions the forces acting on the suspension devices because of the suspended object, the forces acting on the suspension devices being resolved into three independent force components. A center of area of the object and the associated force effect lines are determined for each of the at least two spatial positions, the center of area of the respective spatial position being determined with an inclined tension compensation of the suspension devices. The spatial center of mass is determined by superimposing at least two force effect lines.Type: GrantFiled: April 9, 2008Date of Patent: April 22, 2014Assignees: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Universität RostockInventors: Oliver Wurst, Martin-Christoph Wanner, Birger Schubert
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Patent number: 8706480Abstract: An audio encoder for encoding an audio signal includes an impulse extractor for extracting an impulse-like portion from the audio signal. This impulse-like portion is encoded and forwarded to an output interface. Furthermore, the audio encoder includes a signal encoder which encodes a residual signal derived from the original audio signal so that the impulse-like portion is reduced or eliminated in the residual audio signal. The output interface forwards both, the encoded signals, i.e., the encoded impulse signal and the encoded residual signal for transmission or storage. On the decoder-side, both signal portions are separately decoded and then combined to obtain a decoded audio signal.Type: GrantFiled: June 5, 2008Date of Patent: April 22, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Juergen Herre, Ralf Geiger, Stefan Bayer, Guillaume Fuchs, Ulrich Kraemer, Nikolaus Rettelbach, Bernhard Grill
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Patent number: 8701802Abstract: A multi-functional transport system is disclosed having a plurality of mobile transport units, which each have a coupling device in a front and a rear region. In this manner the transport units can be coupled to each other and/or to a lead vehicle. In one configuration, the individual transport units equipped with drives follow the lead vehicle defining the path in a directionally stable manner by an independent path control system. The transport units themselves can also be removed or decoupled from the transport system as independent units. At least one handle, in addition to the couplings, can be used by an operator when in the decoupled state, so that the mailings to be transported can remain on the transport unit until delivery without manual transferring or transporting. This manual guiding of the individual transport unit takes place in a virtually force-free manner.Type: GrantFiled: January 9, 2012Date of Patent: April 22, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Werner Schonewolf, Matthias Bruning, Eckart Uhlmann
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Publication number: 20140103328Abstract: A light emission device includes a substrate and a layer arrangement applied onto the substrate. The layer arrangement has a first electrode layer made of a conductive material and a second electrode layer made of a conductive material. At least one light-emitting layer made of an organic material is arranged between the first and second electrode layers. At least one intermediate layer having an optical lattice structure is provided between the light-emitting layer, a first main surface of the intermediate layer facing the light-emitting layer and the first main surface of the intermediate layer being formed to be planar within a tolerance range at least in the region of the optical lattice structure. The intermediate layer is conductive at least in regions between the first and a second main surface thereof.Type: ApplicationFiled: December 20, 2013Publication date: April 17, 2014Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Richard PFEIFER, Karsten FEHSE, Uwe VOGEL, Karl LEO
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Patent number: 8699731Abstract: For generating a low-frequency channel for a low-frequency loudspeaker arranged at a predetermined low-frequency loudspeaker position, a plurality of audio objects are initially provided, each audio object having an object position and an object description associated with it. Hereafter, a calculation of an audio object scaling value is performed for each audio object on the basis of the object description, so that an actual amplitude state at least comes close to a target amplitude state at a reference playback position. Thereafter, each object signal is scaled with an associated audio object scaling value so as to then sum the scaled object signals. From the composite signal obtained there, a low-frequency channel is subsequently derived for the low-frequency loudspeaker, and is provided to the respective low-frequency loudspeaker.Type: GrantFiled: May 25, 2006Date of Patent: April 15, 2014Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.Inventors: Michael Beckinger, Sandra Brix
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Patent number: 8697785Abstract: An N-allyl carbamate compound which is suitable as an additive is proposed, the chemical main body thereof allowing modifications of the overall structure of the compound in order to ensure sufficiently high compatibility with as many binder systems as possible, wherein the UV-crosslinkable double bond is designed to be as sterically undemanding as possible, linked via flexible bonds, and highly reactive. In the N-allyl carbamate compound of general formula (A) according to the invention, the radical R1 is selected from straight-chain, branched, or cyclic substituted aliphatic hydrocarbon radicals and heterocyclic radicals, wherein the radical R1 includes at least one ethylenically unsaturated bond, wherein R2, R3, and R4 are selected from hydrogen and hydrocarbon radicals, wherein R5 represents hydrogen or an allyl group, and wherein c is an integer of 1 or greater.Type: GrantFiled: May 30, 2012Date of Patent: April 15, 2014Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Heinz Greisiger, Marc Entenmann, Thadeus Schauer
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Patent number: 8700388Abstract: A processed representation of an audio signal having a sequence of frames is generated by sampling the audio signal within first and second frames of the sequence of frames, the second frame following the first frame, the sampling using information on a pitch contour of the first and second frames to derive a first sampled representation. The audio signal is sampled within the second and third frames, the third frame following the second frame in the sequence of frames. The sampling uses the information on the pitch contour of the second frame and information on a pitch contour of the third frame to derive a second sampled representation. A first scaling window is derived for the first sampled representation, and a second scaling window is derived for the second sampled representation, the scaling windows depending on the samplings applied to derive the first sampled representations or the second sampled representation.Type: GrantFiled: March 23, 2009Date of Patent: April 15, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Bernd Edler, Sascha Disch, Ralf Geiger, Stefan Bayer, Ulrich Kraemer, Guillaume Fuchs, Max Neuendorf, Markus Multrus, Gerald Schuller, Harald Popp
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Publication number: 20140100349Abstract: The invention relates to silicic acid (hetero) polycondensates consisting of at least one silane that has a group bonded to silicon by a carbon atom and that carries an organically polymerisable C?C double bond, and at least one silane that has a group bonded to silicon by a carbon atom and that carries a sulphonate group or a sulphate group of the formula —(O)d-SO3M wherein d=0 or 1 and M=hydrogen, or a monovalent metal cation, or the corresponding quantity of a polyvalent metal cation, yet not including polycondensates in which the C?C double bonds are formed exclusively by methacrylic esters that are bound, in the form of a methylene acryl ester group, to the groups bonded to silicon by carbon. The invention also relates to composites that consist of such silicic acid (hetero) polycondensates in combination with fillers, and to polymers produced by organically polymerising the C?C double bonds in the polycondensates or composites.Type: ApplicationFiled: May 29, 2012Publication date: April 10, 2014Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Herbert Wolter, Mona Seyfried, Somchith Nique
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Publication number: 20140099901Abstract: A system for determining an actual interferer transmitting an interfering signal including first frequency portions of the interfering signal in a predetermined frequency band of a useful signal is provided. The system includes a signal evaluator configured to determine for each possible interferer of the plurality of possible interferers coefficient information of the possible interferer based on representation information of the possible interferer and based on processing information, such that the coefficient information of the possible interferer and the representation information of the possible interferer together indicate the preprocessed signal, wherein the processing information and the preprocessed signal together indicate the compressed signal.Type: ApplicationFiled: October 4, 2013Publication date: April 10, 2014Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Alexander RUEGAMER, Ivana LUKCIN
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Patent number: 8692199Abstract: In an evaluation device for determining a measurement value at a component, power is supplied to the component during readout of the measurement value. A controller serves to determine the power supplied to the component during the readout. The measurement value determined by the reader is corrected by a compensator while using the power determined by the controller, so as to obtain a corrected measurement value freed from any effects caused by the power supplied.Type: GrantFiled: November 25, 2008Date of Patent: April 8, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Juergen Huppertz
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Patent number: 8693008Abstract: A method includes using a scanner to scan a laser beam along a scan path, and detecting light intensities caused by laser light of the laser beam incident on a detection cross-section. The method also includes determining a position of the detection cross-section relative to the laser scanner based on the detected light intensities. The scan path includes, in a plane which includes the detection cross-section, a first partial path and a second partial path which extend adjacent to each other and at a distance from each other which is: a) smaller than a diameter of the detection cross-section plus a diameter of the laser beam in the plane which includes the detection cross-section; and b) greater than 0.3 times the diameter of the laser beam in the plane which includes the detection cross-section or greater than 0.3 times the diameter of the detection cross-section.Type: GrantFiled: August 2, 2012Date of Patent: April 8, 2014Assignees: Carl Zeiss Microscopy GmbH, Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Holger Doemer, Ruediger Rosenkranz
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Publication number: 20140093196Abstract: The invention relates to a system of sliding elements which are formed by a base body and a counter-body. It is the object of the invention to provide a system of sliding element comprising a base body and a counter-body which has a reduced mass with a sufficient strength and which achieves improved properties of friction and wear. The system of sliding elements in accordance with the invention is formed by a counter-body and a base body as friction partners. The base body is formed from a fiber-reinforced polymer material and the counter-body is coated with diamond-like carbon at the surface subject to friction. At least the base body is formed from a textile-reinforced polymer matrix structure.Type: ApplicationFiled: March 28, 2012Publication date: April 3, 2014Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Hans-Joachim Scheibe, Michael Leonhardt, Andreas Leson, Werner Hufenbach, Manuela Andrich, Klaus Kunze