Patents Assigned to Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
  • Publication number: 20210066070
    Abstract: A semiconductor layer and a method and an apparatus for its manufacturing are disclosed. The semiconductor layer includes at least one compound of the formula M1aM21-aN, where M1 is selected from group 13 of the periodic table and M2 is selected from the group comprising scandium, yttrium, erbium, and europium and where the parameter a is selected between 0.01 and 0.99. The method includes supplying a first precursor into a reaction chamber, the first precursor including at least M2 and being supplied to the reaction chamber at a molar flow rate of at least 1·10?6 mol/min by providing the first precursor by means of a first bubbler from which it is evaporated and supplied to the reaction chamber, the temperature of the first bubbler being more than 90° C.
    Type: Application
    Filed: August 27, 2020
    Publication date: March 4, 2021
    Applicants: Albert-Ludwigs-Universität Freiburg, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Stefano LEONE, Christian MANZ, Hanspeter MENNER, Joachim WIEGERT, Jana LIGL
  • Publication number: 20210060855
    Abstract: A system for monitoring manufacturing precision in the additive manufacturing of three-dimensional components. A combined illuminations and detection element is provided equipped with a two-dimensional detector array and at least one laser radiation source directed onto a region of a material in powder or paste form. Producing at least one region of a three-dimensional component with a locally defined energy input. The detector array is arranged and designed such that speckle arising in/on the surface irradiated by the laser radiation source can be detected in a spatially resolved manner. The speckle signals are sensed in a spatially resolved manner using the detector array can be fed to an electronic evaluation and control circuit which is connected to an electronic open- and closed-loop control device designed to influence the production process.
    Type: Application
    Filed: January 11, 2019
    Publication date: March 4, 2021
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Beatrice BENDJUS, Ulana CIKALOVA, Mike ROELLIG
  • Patent number: 10938541
    Abstract: A communication system includes a plurality of transmitters and a receiving unit. The transmitters are configured to divide signals to be emitted into K part signals and to emit the K part signals using K sub-carriers. K is an integer. The K sub-carriers are frequency bands having a sub-carrier bandwidth and are spaced in frequency. The receiving unit is configured to receive signals emitted by the transmitters. The invention further refers to a transmitter.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Frank Mayer, Rainer Wansch
  • Patent number: 10937432
    Abstract: There is provided an error concealment unit, method, and computer program, for providing an error concealment audio information for concealing a loss of an audio frame in an encoded audio information. In one embodiment, the error concealment unit provides an error concealment audio information for a lost audio frame on the basis of a properly decoded audio frame preceding the lost audio frame. The error concealment unit derives a damping factor on the basis of characteristics of a decoded representation of the properly decoded audio frame preceding the lost audio frame. The error concealment unit performs a fade out using the damping factor.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Jérémie Lecomte, Adrian Tomasek
  • Patent number: 10937696
    Abstract: In a method for producing a capacitor, a dielectric structure is generated in a trench of a semiconductor substrate. The dielectric structure includes a plurality of adjacent dielectric layers having opposing material tensions.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Florian Krach, Tobias Erlbacher
  • Patent number: 10937435
    Abstract: An audio signal processing decoder having at least one frequency band and being configured for processing an input audio signal having a plurality of input channels in the at least one frequency band, wherein the decoder is configured to analyze the input audio signal, wherein inter-channel dependencies between the input channels are identified; and to align the phases of the input channels based on the identified inter-channel dependencies, wherein the phases of input channels are the more aligned with respect to each other the higher their inter-channel dependency is; and to downmix the aligned input audio signal to an output audio signal having a lesser number of output channels than the number of the input channels.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Simone Fueg, Achim Kuntz, Michael Kratschmer, Juha Vilkamo
  • Patent number: 10937437
    Abstract: An audio encoder for providing an output signal using an input audio signal includes a patch generator, a comparator and an output interface. The patch generator generates at least one bandwidth extension high-frequency signal, wherein a bandwidth extension high-frequency signal includes a high-frequency band. The high-frequency band of the bandwidth extension high-frequency signal is based on a low frequency band of the input audio signal. A comparator calculates a plurality of comparison parameters. A comparison parameter is calculated based on a comparison of the input audio signal and a generated bandwidth extension high-frequency signal. Each comparison parameter of the plurality of comparison parameters is calculated based on a different offset frequency between the input audio signal and a generated bandwidth extension high-frequency signal.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: March 2, 2021
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Frederik Nagel, Sascha Disch, Guillaume Fuchs, Juergen Herre, Christian Griebel
  • Patent number: 10937449
    Abstract: An apparatus for determining a pitch information on the basis of an audio signal. The apparatus is configured to obtain a similarity value being associated with a given pair of portions of the audio signal having a given time shift, wherein the apparatus is configured to choose a length of signal portions of the audio signal used to obtain the similarity value for the given time shift in dependence on the given time shift and where the apparatus is configured to choose the length of the signal portions to be linearly dependent on the given time shift, within a tolerance of ±1 sample.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Jérémie Lecomte, Adrian Tomasek
  • Patent number: 10938538
    Abstract: The transmission of data signals transmitted by a plurality of transmitters may be rendered more efficient by combining multi-user superposition coding with appropriate phase shift estimation at the receiver so that phase shift compensation at the transmitter's side may lead to a superposition of the data signals which may be demapped correctly so as to obtain information data per data signal. Owing to the combination, the concept is applicable to typical uplink situations or downlink situations of separate contributing BSs: contrary to the simple downlink situation where the data signals stem from one BS and are superimposed in one domain, namely the base station's domain, the data signals to be superimposed stem from separate transmitters, such as user entities or mobile terminals in the typical uplink situation, or different base stations in the downlink situation.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Thomas Fehrenbach, Baris Goektepe, Cornelius Hellge, Johannes Dommel, Lars Thiele
  • Patent number: 10934410
    Abstract: Disclosed is a method for recycling polyolefin containing waste by using a solvent with a specific Hansen parameter and contacting this mixture with a liquid filtration aid before separating the polyolefin from the mixture. The method includes the steps of mixing the polyolefin containing waste with a solvent having a Hansen parameter ?H from 0.0 to 3.0 MPa1/2; contacting this mixture with a liquid filtration aid having a Hansen parameter ?H>4.0 MPa1/2; and separating the polyolefin from the mixture.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventors: Andreas Mäurer, Martin Schlummer, Fabian Knappich, Tanja Fell, Arthur Berrang
  • Patent number: 10935479
    Abstract: The invention relates to a method for determining the average radius of gyration (rg) of particles with a size of ?1 ?m in a suspension, and to a device for carrying out the method according to the invention. The method is based on the scattering of linearly polarised electromagnetic radiation on nanoparticles, which, suspended in a solution, are moved through a through-flow cell. The irradiation is carried out perpendicular to the movement direction, wherein the scattering intensity is measured via at least four detectors that are arranged in a defined plane at defined angles. Alternatively, at least one mirror can be used in the position of at least one of the detectors, which deflects the radiation to at least one detector. Based on the scattering intensities, both the average radius of gyration (rg) of the particles as well as the concentration thereof in the suspension can be determined.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.
    Inventor: Ines Frese
  • Patent number: 10935622
    Abstract: The invention relates to an apparatus for determining information on a position of a transmitter with an antenna apparatus, a control apparatus and a data processing apparatus. The antenna apparatus includes several different directional characteristics that each relate to an amount of spatially different receive sensitivities of the antenna apparatus. The antenna apparatus includes signal outputs, wherein the directional characteristics are allocated to the signal outputs. The control apparatus connects one signal output of the antenna apparatus to an information reading apparatus and further signal outputs of the antenna apparatus to the data processing apparatus. The information reading apparatus determines data transmitted with the signals from the received signals. The data processing apparatus evaluates received signals with respect to their physical characteristics. Further, the invention relates to a respective method.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: March 2, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Mario Schuehler, Lars Weisgerber, Johannes Arendt, Rainer Wansch, Heinrich Milosiu, Frank Oehler
  • Publication number: 20210055157
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: September 4, 2020
    Publication date: February 25, 2021
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard DURSCHANG, Jörn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Publication number: 20210056979
    Abstract: An audio decoder for providing at least four bandwidth-extended channel signals on the basis of an encoded representation provides first and second downmix signals on the basis of a jointly encoded representation of the first and second downmix signals using a multi-channel decoding and provides at least first and second audio channel signals on the basis of the first downmix signal using a multi-channel decoding, and provides at least third and fourth audio channel signals on the basis of the second downmix signal using a multi-channel decoding. It performs a multi-channel bandwidth extension on the basis of the first and third audio channel signals, to obtain first and third bandwidth-extended channel signals, and performs a multi-channel bandwidth extension on the basis of the second and fourth audio channel signals, to obtain second and fourth bandwidth extended channel signals. An audio encoder uses a related concept.
    Type: Application
    Filed: September 3, 2020
    Publication date: February 25, 2021
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Dick, Christian Ertel, Christian Helmrich, Johannes Hilpert, Andreas Hoelzer, Achim Kuntz
  • Patent number: 10925679
    Abstract: Methods, systems, and techniques are provided to a position determination device for determining a position of an instrument within a tubular structure. The position determination device comprises a first curvature values providing unit for providing first curvature values being indicative of first curvatures of the tubular structure at several first locations along the tubular structure and a second curvature values providing unit for providing second curvature values being indicative of second curvatures of the instrument at several second locations along the instrument. A position determination unit determines the position of the instrument within the tubular structure based on the first and second curvature values.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: February 23, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Horst Hahn, Torben Pätz
  • Patent number: 10930292
    Abstract: An audio processor for processing an audio signal includes an audio signal phase measure calculator configured for calculating a phase measure of an audio signal for a time frame, a target phase measure determiner for determining a target phase measure for the time frame, and a phase corrector configured for correcting phases of the audio signal for the time frame using the calculated phase measure and the target phase measure to obtain a processed audio signal.
    Type: Grant
    Filed: January 27, 2019
    Date of Patent: February 23, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Mikko-Ville Laitinen, Ville Pulkki
  • Patent number: 10930293
    Abstract: The invention provides a concept for combined dynamic range compression and guided clipping prevention for audio devices. An audio decoder for decoding an audio bitstream and a metadata bitstream related to the audio bitstream according to the concept includes an audio processing chain including a plurality of adjustment stages including a dynamic range control stage for adjusting a dynamic range of the audio output signal and a guided clipping prevention stage for preventing clipping of the audio output signal; and a metadata decoder configured to receive the metadata bitstream and to extract dynamic range control gain sequences and guided clipping prevention gain sequences from the metadata bitstream, at least a part of the dynamic range control gain sequences being supplied to the dynamic range control stage, and at least a part of the guided clipping prevention gain sequences being supplied to the guided clipping prevention stage.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: February 23, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Fabian Kuech, Christian Uhle, Michael Kratschmer, Bernhard Neugebauer, Michael Meier, Arne Borsum
  • Patent number: 10932221
    Abstract: A receiver, which is located in a spatial region of interest served by a transmitter of a wireless communication network, receives a radio signal from at least one transmitter of the wireless communication network, and the radio signal has a plurality of position reference signal (PRS) sequences. Each PRS sequence has associated therewith a different PRS sequence identifier, and each PRS sequence is send using a different beam cone of the transmitter. The beam cones of the transmitter for sending the plurality of PRS sequences are directed to the spatial region of interest. The receiver processes the radio signal to estimate a time of arrival of each PRS sequence and to obtain for each PRS sequence the associated PRS sequence identifier. A position of the receiver is estimated using the times of arrival and the obtained PRS sequence identifiers.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: February 23, 2021
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Marcus Grossmann, Markus Landmann, Niels Hadaschik
  • Publication number: 20210047719
    Abstract: A method for producing an aluminum layer is provided. The method includes depositing a metallic seed layer on a substrate, the seed layer having a thickness of not more than 5 nm, and also includes applying the aluminum layer to the seed layer, wherein the aluminum layer has a thickness of more than 30 nm. Further, an optical element, which can be a mirror layer, is provided including the metallic seed layer and the aluminum layer.
    Type: Application
    Filed: August 14, 2020
    Publication date: February 18, 2021
    Applicants: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V., Friedrich-Schiller-Universität Jena
    Inventors: Sven Stempfhuber, Dieter Gäbler, Paul Schenk, Peter Munzert, Stefan Schwinde
  • Publication number: 20210046708
    Abstract: An arrangement for adjusting a powder flow in relation to the central longitudinal axis of an energy beam for a working head which is formed for powder application welding. There is a device for the two-dimensional or three-dimensional alignment of the powder supply in relation to the central longitudinal axis of the energy beam in a plane oriented at right angles to the central longitudinal axis of the energy beam. From one side, a linear beam is directed to the region in which the particles of the powdery material meet one another. At right angles thereto, there is arranged an optical detector array for locally resolved detection of intensities connected to an electronic evaluation unit designed to determine the shape, size and/or length of an irradiated region in which locally resolved intensities which exceed a predefinable threshold have been detected with the optical detector array.
    Type: Application
    Filed: February 13, 2019
    Publication date: February 18, 2021
    Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., TECHNISCHE UNIVERSITAET DRESDEN
    Inventors: Mirko RIEDE, Frank BRUECKNER, Rico HEMSCHIK, Robin WILLNER