Patents by Inventor Markus Lohwasser

Markus Lohwasser 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: 11961531
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: April 16, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
  • Publication number: 20240046942
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Application
    Filed: October 9, 2023
    Publication date: February 8, 2024
    Inventors: Markus LOHWASSER, Manuel JANDER, Max NEUENDORF, Ralf GEIGER, Markus SCHNELL, Matthias HILDENBRAND, Tobias CHALUPKA
  • Patent number: 11810584
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: November 7, 2023
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
  • Patent number: 11804232
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: October 31, 2023
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
  • Publication number: 20230343358
    Abstract: An apparatus for generating a bandwidth extended signal from an input signal includes a patch generator and a combiner. The input signal is represented for first and second bands by first and second resolution data, respectively, the second resolution being lower than the first. The patch generator generates first and second patches from the first band of the input signal according to first and second patching algorithms, respectively. A spectral density of the second patch generated using the second patching algorithm is higher than a spectral density of a first patch generated using the first patching algorithm. The combiner combines both patches and the first band of the input signal to obtain the bandwidth extended signal. The apparatus scales the input signal according to the first and second patching algorithms or scales the first and second patches, so that the bandwidth extended signal fulfills a spectral envelope criterion.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Inventors: Frederik NAGEL, Sascha DISCH, Max NEUENDORF, Stefan BAYER, Marc GAYER, Markus LOHWASSER, Nikolaus RETTELBACH, Ulrich KRAEMER
  • Publication number: 20230343354
    Abstract: An apparatus for generating a bandwidth extended signal from an input signal includes a patch generator and a combiner. The input signal is represented for first and second bands by first and second resolution data, respectively, the second resolution being lower than the first. The patch generator generates first and second patches from the first band of the input signal according to first and second patching algorithms, respectively. A spectral density of the second patch generated using the second patching algorithm is higher than a spectral density of a first patch generated using the first patching algorithm. The combiner combines both patches and the first band of the input signal to obtain the bandwidth extended signal. The apparatus scales the input signal according to the first and second patching algorithms or scales the first and second patches, so that the bandwidth extended signal fulfills a spectral envelope criterion.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Inventors: Frederik NAGEL, Sascha DISCH, Max NEUENDORF, Stefan BAYER, Marc GAYER, Markus LOHWASSER, Nikolaus RETTELBACH, Ulrich KRAEMER
  • Publication number: 20230343355
    Abstract: An apparatus for generating a bandwidth extended signal from an input signal includes a patch generator and a combiner. The input signal is represented for first and second bands by first and second resolution data, respectively, the second resolution being lower than the first. The patch generator generates first and second patches from the first band of the input signal according to first and second patching algorithms, respectively. A spectral density of the second patch generated using the second patching algorithm is higher than a spectral density of a first patch generated using the first patching algorithm. The combiner combines both patches and the first band of the input signal to obtain the bandwidth extended signal. The apparatus scales the input signal according to the first and second patching algorithms or scales the first and second patches, so that the bandwidth extended signal fulfills a spectral envelope criterion.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Inventors: Frederik NAGEL, Sascha DISCH, Max NEUENDORF, Stefan BAYER, Marc GAYER, Markus LOHWASSER, Nikolaus RETTELBACH, Ulrich KRAEMER
  • Publication number: 20230343356
    Abstract: An apparatus for generating a bandwidth extended signal from an input signal includes a patch generator and a combiner. The input signal is represented for first and second bands by first and second resolution data, respectively, the second resolution being lower than the first. The patch generator generates first and second patches from the first band of the input signal according to first and second patching algorithms, respectively. A spectral density of the second patch generated using the second patching algorithm is higher than a spectral density of a first patch generated using the first patching algorithm. The combiner combines both patches and the first band of the input signal to obtain the bandwidth extended signal. The apparatus scales the input signal according to the first and second patching algorithms or scales the first and second patches, so that the bandwidth extended signal fulfills a spectral envelope criterion.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Inventors: Frederik NAGEL, Sascha DISCH, Max NEUENDORF, Stefan BAYER, Marc GAYER, Markus LOHWASSER, Nikolaus RETTELBACH, Ulrich KRAEMER
  • Publication number: 20230343353
    Abstract: An apparatus for generating a bandwidth extended signal from an input signal includes a patch generator and a combiner. The input signal is represented for first and second bands by first and second resolution data, respectively, the second resolution being lower than the first. The patch generator generates first and second patches from the first band of the input signal according to first and second patching algorithms, respectively. A spectral density of the second patch generated using the second patching algorithm is higher than a spectral density of a first patch generated using the first patching algorithm. The combiner combines both patches and the first band of the input signal to obtain the bandwidth extended signal. The apparatus scales the input signal according to the first and second patching algorithms or scales the first and second patches, so that the bandwidth extended signal fulfills a spectral envelope criterion.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Inventors: Frederik NAGEL, Sascha DISCH, Max NEUENDORF, Stefan BAYER, Marc GAYER, Markus LOHWASSER, Nikolaus RETTELBACH, Ulrich KRAEMER
  • Publication number: 20230343352
    Abstract: An apparatus for generating a bandwidth extended signal from an input signal includes a patch generator and a combiner. The input signal is represented for first and second bands by first and second resolution data, respectively, the second resolution being lower than the first. The patch generator generates first and second patches from the first band of the input signal according to first and second patching algorithms, respectively. A spectral density of the second patch generated using the second patching algorithm is higher than a spectral density of a first patch generated using the first patching algorithm. The combiner combines both patches and the first band of the input signal to obtain the bandwidth extended signal. The apparatus scales the input signal according to the first and second patching algorithms or scales the first and second patches, so that the bandwidth extended signal fulfills a spectral envelope criterion.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Inventors: Frederik NAGEL, Sascha DISCH, Max NEUENDORF, Stefan BAYER, Marc GAYER, Markus LOHWASSER, Nikolaus RETTELBACH, Ulrich KRAEMER
  • Publication number: 20230343357
    Abstract: An apparatus for generating a bandwidth extended signal from an input signal includes a patch generator and a combiner. The input signal is represented for first and second bands by first and second resolution data, respectively, the second resolution being lower than the first. The patch generator generates first and second patches from the first band of the input signal according to first and second patching algorithms, respectively. A spectral density of the second patch generated using the second patching algorithm is higher than a spectral density of a first patch generated using the first patching algorithm. The combiner combines both patches and the first band of the input signal to obtain the bandwidth extended signal. The apparatus scales the input signal according to the first and second patching algorithms or scales the first and second patches, so that the bandwidth extended signal fulfills a spectral envelope criterion.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Inventors: Frederik NAGEL, Sascha DISCH, Max NEUENDORF, Stefan BAYER, Marc GAYER, Markus LOHWASSER, Nikolaus RETTELBACH, Ulrich KRAEMER
  • Publication number: 20230335150
    Abstract: An apparatus for generating a bandwidth extended signal from an input signal includes a patch generator and a combiner. The input signal is represented for first and second bands by first and second resolution data, respectively, the second resolution being lower than the first. The patch generator generates first and second patches from the first band of the input signal according to first and second patching algorithms, respectively. A spectral density of the second patch generated using the second patching algorithm is higher than a spectral density of a first patch generated using the first patching algorithm. The combiner combines both patches and the first band of the input signal to obtain the bandwidth extended signal. The apparatus scales the input signal according to the first and second patching algorithms or scales the first and second patches, so that the bandwidth extended signal fulfills a spectral envelope criterion.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 19, 2023
    Inventors: Frederik NAGEL, Sascha DISCH, Max NEUENDORF, Stefan BAYER, Marc GAYER, Markus LOHWASSER, Nikolaus RETTELBACH, Ulrich KRAEMER
  • Patent number: 11790928
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: October 17, 2023
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
  • Patent number: 11676615
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: June 13, 2023
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
  • Patent number: 11475906
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: October 18, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
  • Patent number: 11475905
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: October 18, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Lohwasser, Manuel Jander, Max Neuendorf, Ralf Geiger, Markus Schnell, Matthias Hildenbrand, Tobias Chalupka
  • Publication number: 20220262380
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Application
    Filed: May 5, 2022
    Publication date: August 18, 2022
    Inventors: Markus LOHWASSER, Manuel JANDER, Max NEUENDORF, Ralf GEIGER, Markus SCHNELL, Matthias HILDENBRAND, Tobias CHALUPKA
  • Publication number: 20220262381
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Application
    Filed: May 5, 2022
    Publication date: August 18, 2022
    Inventors: Markus LOHWASSER, Manuel JANDER, Max NEUENDORF, Ralf GEIGER, Markus SCHNELL, Matthias HILDENBRAND, Tobias CHALUPKA
  • Publication number: 20220262382
    Abstract: An apparatus for processing an audio signal includes a configurable first audio signal processor for processing the audio signal in accordance with different configuration settings to obtain a processed audio signal, wherein the apparatus is adapted so that different configuration settings result in different sampling rates of the processed audio signal. The apparatus furthermore includes n analysis filter bank having a first number of analysis filter bank channels, a synthesis filter bank having a second number of synthesis filter bank channels, a second audio processor being adapted to receive and process an audio signal having a predetermined sampling rate, and a controller for controlling the first number of analysis filter bank channels or the second number of synthesis filter bank channels in accordance with a configuration setting.
    Type: Application
    Filed: May 5, 2022
    Publication date: August 18, 2022
    Inventors: Markus LOHWASSER, Manuel JANDER, Max NEUENDORF, Ralf GEIGER, Markus SCHNELL, Matthias HILDENBRAND, Tobias CHALUPKA
  • Patent number: RE49801
    Abstract: An apparatus for generating a bandwidth extended signal from an input signal includes a patch generator and a combiner. The input signal is represented for first and second bands by first and second resolution data, respectively, the second resolution being lower than the first. The patch generator generates first and second patches from the first band of the input signal according to first and second patching algorithms, respectively. A spectral density of the second patch generated using the second patching algorithm is higher than a spectral density of a first patch generated using the first patching algorithm. The combiner combines both patches and the first band of the input signal to obtain the bandwidth extended signal. The apparatus scales the input signal according to the first and second patching algorithms or scales the first and second patches, so that the bandwidth extended signal fulfills a spectral envelope criterion.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: January 16, 2024
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Frederik Nagel, Sascha Disch, Max Neuendorf, Stefan Bayer, Marc Gayer, Markus Lohwasser, Nikolaus Rettelbach, Ulrich Kraemer