Patents by Inventor Stefan Bayer

Stefan Bayer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10861468
    Abstract: The apparatus for encoding a multi-channel signal having at least two channels, includes: a parameter determiner for determining a broadband alignment parameter and a plurality of narrowband alignment parameters from the multichannel signal; a signal aligner for aligning the at least two channels using the broadband alignment parameter and the plurality of narrowband alignment parameters to obtain aligned channels; a signal processor for calculating a mid-signal and a side signal using the aligned channels; a signal encoder for encoding the mid-signal to obtain an encoded mid-signal and for encoding the side signal to obtain an encoded side signal; and an output interface for generating an encoded multi-channel signal including the encoded mid-signal, the encoded side signal, information on the broadband alignment parameter and information on the plurality of narrowband alignment parameters.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: December 8, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Bayer, Eleni Fotopoulou, Markus Multrus, Guillaume Fuchs, Emmanuel Ravelli, Markus Schnell, Stefan Doehla, Wolfgang Jaegers, Martin Dietz, Goran Markovic
  • Patent number: 10854211
    Abstract: An apparatus for encoding a multi-channel signal including at least two channels includes a time-spectral converter for converting sequences of blocks of sampling values of the at least two channels into a frequency domain representation having sequences of blocks of spectral values for the at least two channels; a multi-channel processor for applying a joint multi-channel processing to the sequences of blocks of spectral values to obtain at least one result sequence of blocks of spectral values including information related to the at least two channels; a spectral-time converter for converting the result sequence of blocks of spectral values into a time domain representation including an output sequence of blocks of sampling values; and a core encoder for encoding the output sequence of blocks of sampling values to obtain an encoded multi-channel signal.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: December 1, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Guillaume Fuchs, Emmanuel Ravelli, Markus Multrus, Markus Schnell, Stefan Doehla, Martin Dietz, Goran Markovic, Eleni Fotopoulou, Stefan Bayer, Wolfgang Jaegers
  • Patent number: 10847167
    Abstract: An apparatus for generating a decoded two-channel signal includes: an audio processor for decoding an encoded two-channel signal to obtain a first set of first spectral portions; a parametric decoder for providing parametric data for a second set of second spectral portions and a two-channel identification identifying either a first or a second different two-channel representation for the second spectral portions; and a frequency regenerator for regenerating a second spectral portion depending on a first spectral portion of the first set of first spectral portions, the parametric data for the second portion and the two-channel identification for the second portion.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: November 24, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Frederik Nagel, Ralf Geiger, Balaji Nagendran Thoshkahna, Konstantin Schmidt, Stefan Bayer, Christian Neukam, Bernd Edler, Christian Helmrich
  • Publication number: 20200357421
    Abstract: An audio scene encoder for encoding an audio scene, the audio scene having at least two component signals, has: a core encoder for core encoding the at least two component signals, wherein the core encoder is configured to generate a first encoded representation for a first portion of the at least two component signals, and to generate a second encoded representation for a second portion of the at least two component signals, a spatial analyzer for analyzing the audio scene to derive one or more spatial parameters or one or more spatial parameter sets for the second portion; and an output interface for forming the encoded audio scene signal, the encoded audio scene signal having the first encoded representation, the second encoded representation, and the one or more spatial parameters or one or more spatial parameter sets for the second portion.
    Type: Application
    Filed: July 30, 2020
    Publication date: November 12, 2020
    Inventors: Guillaume FUCHS, Stefan BAYER, Markus MULTRUS, Oliver THIERGART, Alexandre BOUTHÉON, Jürgen HERRE, Florin GHIDO, Wolfgang JAEGERS, Fabian KÜCH
  • Publication number: 20200273473
    Abstract: An apparatus for encoding directional audio coding parameters including diffuseness parameters and direction parameters includes: a parameter calculator for calculating the diffuseness parameters with a first time or frequency resolution and for calculating the direction parameters with a second time or frequency resolution; and a quantizer and encoder processor for generating a quantized and encoded representation of the diffuseness parameters and the direction parameters.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Inventors: Guillaume FUCHS, Jürgen HERRE, Fabian KÜCH, Stefan DÖHLA, Markus MULTRUS, Oliver THIERGART, Oliver WÜBBOLT, Florin GHIDO, Stefan BAYER, Wolfgang JAEGERS
  • Publication number: 20200265851
    Abstract: An apparatus for encoding directional audio coding parameters having diffuseness parameters and direction parameters, has: a parameter quantizer for quantizing the diffuseness parameters and the direction parameters; a parameter encoder for encoding quantized diffuseness parameters and quantized direction parameters; and an output interface for generating an encoded parameter representation having information on encoded diffuseness parameters and encoded direction parameters.
    Type: Application
    Filed: May 6, 2020
    Publication date: August 20, 2020
    Inventors: Guillaume FUCHS, Jürgen HERRE, Fabian KÜCH, Stefan DÖHLA, Markus MULTRUS, Oliver THIERGART, Oliver WÜBBOLT, Florin GHIDO, Stefan BAYER, Wolfgang JAEGERS
  • Publication number: 20200243096
    Abstract: A downmixer for downmixing at least two channels of a multichannel signal having the two or more channels includes: a processor for calculating a partial downmix signal from the at least two channels; a complementary signal calculator for calculating a complementary signal from the multichannel signal, the complementary signal being different from the partial downmix signal; and an adder for adding the partial downmix signal and the complementary signal to obtain a downmix signal of the multichannel signal.
    Type: Application
    Filed: April 13, 2020
    Publication date: July 30, 2020
    Inventors: Christian BORSS, Bernd EDLER, Guillaume FUCHS, Jan BUETHE, Sascha DISCH, Florin GHIDO, Stefan BAYER, Markus MULTRUS
  • Publication number: 20200227054
    Abstract: An audio encoder has a first information sink oriented encoding branch such as a spectral domain encoding branch, a second information source or SNR oriented encoding branch such as an LPC-domain encoding branch, and a switch for switching between the first and second encoding branches, the second encoding branch having a converter into a specific domain different from the spectral domain such as an LPC analysis stage generating an excitation signal, and the second encoding branch having a specific domain coding branch such as LPC domain processing branch, and a specific spectral domain coding branch such as LPC spectral domain processing branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder, a second domain decoder, and a third domain decoder as well as two cascaded switches for switching between the decoders.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Inventors: Bernard GRILL, Roch LEFEBVRE, Bruno BESSETTE, Jimmy LAPIERRE, Philippe GOURNAY, Redwan SALAMI, Stefan BAYER, Guillaume FUCHS, Stefam GEYERSBERGER, Raif GEIGER, Johannes HILPERT, Ulrich KRAEMER, Jérémie LECOMTE, Markus MULTRUS, Max NEUENDORF, Harald POPP, Nikolaus RETTELBACH
  • Publication number: 20200221230
    Abstract: An apparatus for generating a description of a combined audio scene, includes: an input interface for receiving a first description of a first scene in a first format and a second description of a second scene in a second format, wherein the second format is different from the first format; a format converter for converting the first description into a common format and for converting the second description into the common format, when the second format is different from the common format; and a format combiner for combining the first description in the common format and the second description in the common format to obtain the combined audio scene.
    Type: Application
    Filed: March 17, 2020
    Publication date: July 9, 2020
    Inventors: Guillaume FUCHS, Jürgen HERRE, Fabian KÜCH, Stefan DÖHLA, Markus MULTRUS, Oliver THIERGART, Oliver WÜBBOLT, Florin GHIDO, Stefan BAYER, Wolfgang JAEGERS
  • Patent number: 10706861
    Abstract: An apparatus for estimating an inter-channel time difference between a first channel signal and a second channel signal, includes: a calculator for calculating a cross-correlation spectrum for a time block from the first channel signal in the time block and the second channel signal in the time block; a spectral characteristic estimator for estimating a characteristic of a spectrum of the first channel signal or the second channel signal for the time block; a smoothing filter for smoothing the cross-correlation spectrum over time using the spectral characteristic to obtain a smoothed cross-correlation spectrum; and a processor for processing the smoothed cross-correlation spectrum to obtain the inter-channel time difference.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: July 7, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der andgewandten Forschung e.V.
    Inventors: Stefan Bayer, Eleni Fotopoulou, Markus Multrus, Guillaume Fuchs, Emmanuel Ravelli, Markus Schnell, Stefan Doehla, Wolfgang Jaegers, Martin Dietz, Goran Markovic
  • Publication number: 20200194013
    Abstract: An apparatus for estimating an inter-channel time difference between a first channel signal and a second channel signal, includes: a calculator for calculating a cross-correlation spectrum for a time block from the first channel signal in the time block and the second channel signal in the time block; a spectral characteristic estimator for estimating a characteristic of a spectrum of the first channel signal or the second channel signal for the time block; a smoothing filter for smoothing the cross-correlation spectrum over time using the spectral characteristic to obtain a smoothed cross-correlation spectrum; and a processor for processing the smoothed cross-correlation spectrum to obtain the inter-channel time difference.
    Type: Application
    Filed: February 19, 2020
    Publication date: June 18, 2020
    Inventors: Stefan BAYER, Eleni FOTOPOULOU, Markus MULTRUS, Guillaume FUCHS, Emmanuel RAVELLI, Markus SCHNELL, Stefan DOEHLA, Wolfgang JAEGERS, Martin DIETZ, Goran MARKOVIC
  • Patent number: 10668223
    Abstract: A dose indicating mechanism for a drug delivery device for displaying of a dose of a medicament to be dispensed by the drug delivery device includes an elongated housing extending in an axial direction and having at least a first window and a second window that are spaced apart from each other in axial direction. The dose indicating mechanism further includes a dose indicating sleeve movably disposed in the housing and having at least one dose indication coinciding with the first window to display the size of a dose actually set, and an indicator operably engaged with the dose indicating sleeve and axially displaceable relative to the housing to coincide with the second window for indicating an operational status of the dose indicating mechanism.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: June 2, 2020
    Assignee: Sanofi
    Inventors: Stefan Bayer, Wolfgang Pelzer, Michael Pfoser, Björn Wilden, Philipp Zeitz
  • Patent number: 10665246
    Abstract: A downmixer for downmixing at least two channels of a multichannel signal having the two or more channels includes: a processor for calculating a partial downmix signal from the at least two channels; a complementary signal calculator for calculating a complementary signal from the multichannel signal, the complementary signal being different from the partial downmix signal; and an adder for adding the partial downmix signal and the complementary signal to obtain a downmix signal of the multichannel signal.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: May 26, 2020
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Christian Borss, Bernd Edler, Guillaume Fuchs, Jan Buethe, Sascha Disch, Florin Ghido, Stefan Bayer, Markus Multrus
  • Patent number: 10632262
    Abstract: This disclosure relates to a drive mechanism for a drug delivery device and to a respective drug delivery device. The drive mechanism includes an elongated housing extending in an axial direction, an actuation member rotatably supported on the housing for setting of the dose. The drive mechanism further includes a last dose sleeve directly rotatably engaged with the actuation member and having at least one stop and a last dose member threadedly engaged with the last dose sleeve. The last dose member is further rotatably fixed to the housing and is operable to engage with the at least one stop to limit a rotation of the last dose sleeve.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: April 28, 2020
    Assignee: Sanofi
    Inventors: Stefan Bayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Michael Pfoser, Björn Wilden
  • Patent number: 10621996
    Abstract: An audio encoder has a first information sink oriented encoding branch, a second information source or SNR oriented encoding branch, and a switch for switching between the first encoding branch and the second encoding branch, wherein the second encoding branch has a converter into a specific domain different from the spectral domain, and wherein the second encoding branch furthermore has a specific domain coding branch, and a specific spectral domain coding branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder, a second domain decoder for decoding a signal, and a third domain decoder and two cascaded switches for switching between the decoders.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: April 14, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Bernard Grill, Roch Lefebvre, Bruno Bessette, Jimmy Lapierre, Philippe Gournay, Redwan Salami, Stefan Bayer, Guillaume Fuchs, Stefam Geyersberger, Raif Geiger, Johannes Hilpert, Ulrich Kraemer, Jérémie Lecomte, Markus Multrus, Max Neuendorf, Harald Popp, Nikolaus Rettelbach
  • Publication number: 20200106585
    Abstract: A radio communication system is described, comprising at least a first radio and a second radio, both radios being configured to communicate with each other. The radio communication system has a transmit mode in which an initial signal pattern is transmitted at the beginning of each communication via the first radio. The radio communication system has a receive mode in which the initial signal pattern is received by the second radio. The second radio is configured to derive at least one communication channel parameter and a radio frequency characteristic from the initial signal pattern. Further, a method for determining a radio frequency characteristic is described.
    Type: Application
    Filed: September 27, 2019
    Publication date: April 2, 2020
    Applicant: Rohde & Schwarz GmbH & Co. KG
    Inventors: Stefan Bayer, Peter Eberl
  • Patent number: 10573334
    Abstract: An apparatus for decoding an encoded audio signal, includes a spectral domain audio decoder for generating a first decoded representation of a first set of first spectral portions, the decoded representation having a first spectral resolution; a parametric decoder for generating a second decoded representation of a second set of second spectral portions having a second spectral resolution being lower than the first spectral resolution; a frequency regenerator for regenerating every constructed second spectral portion having the first spectral resolution using a first spectral portion and spectral envelope information for the second spectral portion; and a spectrum time converter for converting the first decoded representation and the reconstructed second spectral portion into a time representation.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: February 25, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Frederik Nagel, Ralf Geiger, Balaji Nagendran Thoshkahna, Konstantin Schmidt, Stefan Bayer, Christian Neukam, Bernd Edler, Christian Helmrich
  • Patent number: 10535356
    Abstract: An apparatus for encoding a multi-channel signal having at least two channels is provided. The apparatus includes a time-spectral converter, converting sequences of blocks of sample values of the two channels into a frequency domain representation having sequences of blocks of spectral values for the two channels, a block of sampling values having an associated input sampling rate, a block of spectral values of the sequences of blocks that has spectral values up to a maximum input frequency related to the input sampling rate; a multi-channel processor to obtain a result sequence of blocks of spectral values having information related to the two channels; a spectral domain resampler to obtain a resampled sequence of blocks of spectral values; a spectral-time converter for converting the resampled sequence of blocks into a time domain representation; and a core encoder for encoding the output sequence of blocks to obtain an encoded multi-channel signal.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: January 14, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Guillaume Fuchs, Emmanuel Ravelli, Markus Multrus, Markus Schnell, Stefan Doehla, Martin Dietz, Goran Markovic, Eleni Fotopoulou, Stefan Bayer, Wolfgang Jaegers
  • Publication number: 20190371355
    Abstract: An apparatus for decoding an encoded audio signal, includes: a spectral domain audio decoder for generating a first decoded representation of a first set of first spectral portions being spectral prediction residual values; a frequency regenerator for generating a reconstructed second spectral portion using a first spectral portion of the first set of first spectral portions, wherein the reconstructed second spectral portion additionally includes spectral prediction residual values; and an inverse prediction filter for performing an inverse prediction over frequency using the spectral residual values for the first set of first spectral portions and the reconstructed second spectral portion using prediction filter information included in the encoded audio signal.
    Type: Application
    Filed: May 20, 2019
    Publication date: December 5, 2019
    Inventors: Sascha DISCH, Frederik NAGEL, Ralf GEIGER, Balaji Nagendran THOSHKAHNA, Konstantin SCHMIDT, Stefan BAYER, Christian NEUKAM, Bernd EDLER, Christian HELMRICH
  • Patent number: 10478562
    Abstract: A drive mechanism of a drug delivery device for setting and dispensing of a dose of a medicament includes a housing, a piston rod, a dose indicating member with a dose size information thereon, and a drive wheel. The piston rod engages with a piston of a cartridge for displacing the piston in a distal direction. The dose indicating member is connected to a spring element and is rotatable in a dose incrementing direction against the action of the spring element for setting a dose. The drive wheel is operably engaged with the piston rod for displacing the piston rod in the distal direction for dose dispensing. The dose indicating member is engageable with the drive wheel during dose dispensing to transfer a force to the drive wheel when driven by the relaxing spring element in a dose decrementing direction.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: November 19, 2019
    Assignee: Sanofi
    Inventors: Stefan Bayer, Daniel Berning, Philippe Blank, Wolfgang Pelzer, Björn Wilden