Patents Assigned to Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
  • Publication number: 20220372653
    Abstract: The present invention relates to a method for reducing structural damage to the surface of monocrystalline aluminium-nitride substrates, according to which the substrate undergoes thermal treatment in a crucible in an autoclave, during which treatment the aluminum-nitride substrate is sublimated in the damaged regions of the surface of the substrate and is removed. The method is used to prepare the surface of monocrystalline aluminium-nitride (AlN), in particular the aim of the invention is to eliminate, or at least significantly reduce near-surface structural damage to the monocrystalline material caused by mechanical processing. The invention also relates to aluminium-nitride substrates that are treated in this way.
    Type: Application
    Filed: September 30, 2020
    Publication date: November 24, 2022
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Boris EPELBAUM, Stephan MÜLLER, Elke MEISSNER
  • Patent number: 11508384
    Abstract: An apparatus for encoding a multi-channel signal having at least three channels includes an iteration processor, a channel encoder and an output interface. The iteration processor is configured to calculate inter-channel correlation values between each pair of the at least three channels, for selecting a pair including a highest value or including a value above a threshold, and for processing the selected pair using a multi-channel processing operation to derive first multi-channel parameters for the selected pair and to derive first processed channels. The iteration processor is configured to perform the calculating, the selecting and the processing using at least one of the processed channels to derive second multi-channel parameters and second processed channels. The channel encoder is configured to encode channels resulting from an iteration processing to obtain encoded channels.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: November 22, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Dick, Florian Schuh, Nikolaus Rettelbach, Tobias Schwegler, Richard Fueg, Johannes Hilpert, Matthias Neusinger
  • Patent number: 11508863
    Abstract: A a semiconductor component (1a, 1b) having a front side and an opposite rear side and also side surfaces, and also at least one emitter (2a, 2b) and at least one base (3a, 3b), wherein a pn junction (4a, 4b) is formed between emitter (2a, 2b) and base (3a, 3b) and the emitter (2a, 2b) extends parallel to the front and/or rear side. At least one side surface is a passivated separating surface (T), at which a separating surface passivation layer (6a, 6b) is arranged, which has stationary charges having a surface charge density at the separating surface (T) with a magnitude of greater than or equal to 1012 cm-2. A method for singulating a semiconductor component (1a, 1b) having a pn junction is also provided.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: November 22, 2022
    Assignee: Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V.
    Inventors: Elmar Lohmüller, Ralf Preu, Puzant Baliozian, Tobias Fellmeth, Nico Wöhrle, Pierre Saint-Cast, Florian Clement, Andreas Brand
  • Patent number: 11504225
    Abstract: A structured artificial construct that allows corneal endothelium to be regenerated from isolated cells outside the human or animal body is provided. The structured artificial construct is formed from a dome-shaped base body with a honeycomb structure formed in a concave side of the base body. Methods for generating the structured artificial construct are also provided.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: November 22, 2022
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventor: Angela Gutermuth
  • Patent number: 11504286
    Abstract: A personal mobility device includes a frame, a plurality of wheels attached to the frame and one or more pneumatic motors. Each of the one or more pneumatic motors has a drive shaft in operative connection with at least one of the plurality of wheels. The personal mobility device further includes at least one tank (that is, a storage container) for storage of a pressurized gas in operative connection with the one or more pneumatic motors to supply pressurized gas to the one or more pneumatic motors and a control system in operative connection with the at least one tank and with the one or more pneumatic motors.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: November 22, 2022
    Assignees: University of Pittsburgh—Of the Commonwealth System of Higher Education, The United States Government as represented by the Department of Veterans Affairs, FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Rory Alan Cooper, Hongwu Wang, Brandon Joseph Daveler, Benjamin Todd Gebrosky, Garrett G. Grindle, Jonathan L. Pearlman, Urs Schneider, David Minzenmay
  • Patent number: 11503339
    Abstract: Techniques for encoding/decoding of video signals are described, e.g. implemented in decoders, encoder, methods and non-transitory storage units storing instructions to perform the methods. A decoder or encoder may be configured to predict a predetermined block of the picture using a plurality of neighbouring samples by reducing the plurality of neighbouring samples to obtain a reduced set of samples values lower, in number of samples, than compared to the plurality of neighbouring samples, subjecting the reduced set of sample values to a linear or affine linear transformation to obtain predicted values for predetermined samples of the predetermined block.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: November 15, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Jonathan Pfaff, Philipp Helle, Michael Schaefer, Roman Rischke, Tobias Hinz, Philipp Merkle, Bjoern Stallenberger, Martin Winken, Mischa Siekmann, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
  • Patent number: 11500137
    Abstract: A multilayer mirror for reflecting Extreme Ultraviolet (EUV) radiation and a method for producing the same are disclosed. In an embodiment a multilayer mirror includes a layer sequence having a plurality of alternating first layers and second layers, the first layers including lanthanum or a lanthanum compound and the second layers including boron, wherein the second layers are doped with carbon, and wherein a molar fraction of carbon in the second layers is 10% or less.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: November 15, 2022
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Philipp Naujok, Sergiy Yulin, Norbert Kaiser
  • Patent number: 11502456
    Abstract: The invention relates to a charging contact unit (100, 1100) for a vehicle, for integrating beneath a road surface, with a charging contact element carrier head (113, 1113) designed to interact with a contact device on the lower side of a vehicle, the contact making and the contact separation being carried out by a relative movement of the charging contact element carrier head and the contact device in a contacting direction (6), the charging contact element carrier head (113, 1113) being movable inside the charging contact unit and/or rotatable or pivotable about the contacting direction (6) in order to compare incorrect positioning in either one or a plurality of directions extending transversely to the contacting direction (6). The invention also relates to a contact system and a road covering.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: November 15, 2022
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Sven Klausner, Tim Vorwerk, Christian Seiler
  • Patent number: 11501783
    Abstract: An apparatus for decoding an encoded audio signal to obtain a reconstructed audio signal includes a receiving interface for receiving one or more frames comprising information on a plurality of audio signal samples of an audio signal spectrum of the encoded audio signal, and a processor for generating the reconstructed audio signal. The processor is configured to generate the reconstructed audio signal by fading a modified spectrum to a target spectrum, if a current frame is not received by the receiving interface or if the current frame is received by the receiving interface but is corrupted, wherein the modified spectrum includes a plurality of modified signal samples, wherein, for each of the modified signal samples of the modified spectrum, an absolute value of the modified signal sample is equal to an absolute value of one of the audio signal samples of the audio signal spectrum.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 15, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Michael Schnabel, Goran Markovic, Ralph Sperschneider, Jérémie Lecomte, Christian Helmrich
  • Publication number: 20220359872
    Abstract: The invention relates to alkaline secondary batteries. The secondary battery contains a cathode, an anode and an electrolyte, said secondary battery being arranged between the cathode and anode and comprises an alkali metal ion conductive contact to the cathode and to the carbon layer of the anode. The anode contains or consists of a carbon layer, whereby the carbon layer, alone or in combination with an electrically conductive substrate, forms with an electrically conductive contact.
    Type: Application
    Filed: June 16, 2020
    Publication date: November 10, 2022
    Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V., TECHNISCHE UNIVERSITÄT DRESDEN
    Inventors: Felix HIPPAUF, Susanne DÖRFLER, Holger ALTHUES, Stefan KASKEL, Jonas PAMPEL, Luise BLOI
  • Patent number: 11495239
    Abstract: The following coding scenario is addressed: A number of audio source signals need to be transmitted or stored for the purpose of mixing wave field synthesis, multi-channel surround, or stereo signals after decoding the source signals. The proposed technique offers significant coding gain when jointly coding the source signals, compared to separately coding them, even when no redundancy is present between the source signals. This is possible by considering statistical properties of the source signals, the properties of mixing techniques, and spatial hearing. The sum of the source signals is transmitted plus the statistical properties of the source signals, which mostly determine the perceptually important spatial cues of the final mixed audio channels. Source signals are recovered at the receiver such that their statistical properties approximate the corresponding properties of the original source signals. Subjective evaluations indicate that high audio quality is achieved by the proposed scheme.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: November 8, 2022
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventor: Christof Faller
  • Patent number: 11496541
    Abstract: Various concepts for media content streaming are described. Some allow for streaming spatial scene content in a spatially unequal manner so that the visible quality for the user is increased, or the processing complexity or used bandwidth at the streaming retrieval site is decreased. Others allow for streaming spatial scene content in a manner enlarging the applicability to further application scenarios.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: November 8, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Robert Skupin, Cornelius Hellge, Thomas Schierl, Yago Sánchez De La Fuente, Thomas Wiegand, Dimitri Podborski
  • Patent number: 11495236
    Abstract: An apparatus for processing an input audio signal relies on a cascade of filterbanks, the cascade having a synthesis filterbank for synthesizing an audio intermediate signal from the input audio signal, the input audio signal being represented by a plurality of first subband signals generated by an analysis filterbank, wherein a number of filterbank channels of the synthesis filterbank is smaller than a number of channels of the analysis filterbank. The apparatus furthermore has a further analysis filterbank for generating a plurality of second subband signals from the audio intermediate signal, wherein the further analysis filterbank has a number of channels being different from the number of channels of the synthesis filterbank, so that a sampling rate of a subband signal of the plurality of second subband signals is different from a sampling rate of a first subband signal of the plurality of first subband signals.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: November 8, 2022
    Assignees: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Dolby International AB
    Inventors: Lars Villemoes, Per Ekstrand, Sascha Disch, Frederik Nagel, Stephan Wilde
  • Patent number: 11496540
    Abstract: Various concepts for media content streaming are described. Some allow for streaming spatial scene content in a spatially unequal manner so that the visible quality for the user is increased, or the processing complexity or used bandwidth at the streaming retrieval site is decreased. Others allow for streaming spatial scene content in a manner enlarging the applicability to further application scenarios.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: November 8, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Robert Skupin, Cornelius Hellge, Thomas Schierl, Yago Sánchez De La Fuente, Thomas Wiegand, Dimitri Podborski
  • Patent number: 11496538
    Abstract: Various concepts for media content streaming are described. Some allow for streaming spatial scene content in a spatially unequal manner so that the visible quality for the user is increased, or the processing complexity or used bandwidth at the streaming retrieval site is decreased. Others allow for streaming spatial scene content in a manner enlarging the applicability to further application scenarios.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: November 8, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
    Inventors: Robert Skupin, Cornelius Hellge, Thomas Schierl, Yago Sánchez De La Fuente, Thomas Wiegand, Dimitri Podborski
  • Patent number: 11496539
    Abstract: Various concepts for media content streaming are described. Some allow for streaming spatial scene content in a spatially unequal manner so that the visible quality for the user is increased, or the processing complexity or used bandwidth at the streaming retrieval site is decreased. Others allow for streaming spatial scene content in a manner enlarging the applicability to further application scenarios.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: November 8, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Robert Skupin, Cornelius Hellge, Thomas Schierl, Yago Sánchez De La Fuente, Thomas Wiegand, Dimitri Podborski
  • Publication number: 20220348001
    Abstract: A screen printing form (1, 1?) for use in screen printing, in particular for producing a metallic contact structure of a photovoltaic solar cell, having a woven screen printing fabric (1b) with a plurality of elongate woven fabric elements, which are arranged in a first element direction and a second element direction perpendicular thereto, and a stencil (1c), arranged on the woven screen printing fabric (1b) that has at least one opening formed as straight channel with a channel width BK. The woven fabric elements have a spacing AF in the first element direction and a spacing which deviates by less than 5% from AF in the second element direction, and the woven fabric elements have a diameter DG in the first element direction and a diameter which deviates by less than 5% from DG in the second element direction. A screen printing device and screen printing form are also provided.
    Type: Application
    Filed: August 3, 2020
    Publication date: November 3, 2022
    Applicant: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung E.V.
    Inventors: Sebastian TEPNER, Maximilian POPISCHIL, Andreas LORENZ, Linda NEY, Michael LINSE, Florian CLEMENT
  • Patent number: 11488609
    Abstract: An apparatus for downmixing a multi-channel signal having at least two channels, has: a downmixer for calculating a downmix signal from the multi-channel signal, wherein the downmixer is configured to calculate the downmix using an absolute phase compensation, so that a channel having a lower energy among the at least two channels is only rotated or is rotated stronger than a channel having a greater energy in calculating the downmix signal; and an output interface for generating an output signal, the output signal having information on the downmix signal.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: November 1, 2022
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Jan Buethe, Guillaume Fuchs, Wolfgang Jaegers, Franz Reutelhuber, Juergen Herre, Eleni Fotopoulou, Markus Multrus, Srikanth Korse
  • Patent number: 11488610
    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: Grant
    Filed: September 3, 2020
    Date of Patent: November 1, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Dick, Christian Ertel, Christian Helmrich, Johannes Hilpert, Andreas Hoelzer, Achim Kuntz
  • Patent number: 11485952
    Abstract: A cell separation apparatus a container for reception of a cell suspension and a conduit connected to the container for the conveyance of cell suspension out of the container. The conduit extends along a notional conduit path passing centrally through the conduit, the conduit path defining in the conduit an axial direction proceeding along the conduit path, a radial direction orthogonal to the conduit path, and a circumferential direction proceeding around the conduit path. A segment of the conduit constitutes a turbulent flow segment including a flow configuration. The flow configuration includes at least two axial configuration segments located axially behind one another to accelerate a cell suspension.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: November 1, 2022
    Assignees: Hamilton Bonaduz AG, Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
    Inventors: Tom Kissling, Jens Grosch, Thomas Zumstein, Andrea Traube, Carsten Etzold, Tobias Seiler