Patents by Inventor Harald Popp

Harald Popp 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).

  • Publication number: 20210272577
    Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
    Type: Application
    Filed: May 17, 2021
    Publication date: September 2, 2021
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Nikolaus RETTELBACH, Bernhard GRILL, Guillaume FUCHS, Stefan GEYERSBERGER, Markus MULTRUS, Harald POPP, Juergen HERRE, Stefan WABNIK, Gerald SCHULLER, Jens HIRSCHFELD
  • Patent number: 11024323
    Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: June 1, 2021
    Assignee: Fraunhofer-Gesellschaft zur Fcerderung der angewandten Forschung e.V.
    Inventors: Nikolaus Rettelbach, Bernhard Grill, Guillaume Fuchs, Stefan Geyersberger, Markus Multrus, Harald Popp, Juergen Herre, Stefan Wabnik, Gerald Schuller, Jens Hirschfeld
  • 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
  • Patent number: 10629215
    Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: April 21, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Nikolaus Rettelbach, Bernhard Grill, Guillaume Fuchs, Stefan Geyersberger, Markus Multrus, Harald Popp, Juergen Herre, Stefan Wabnik, Gerald Schuller, Jens Hirschfeld
  • 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: 20190259393
    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: Application
    Filed: April 29, 2019
    Publication date: August 22, 2019
    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
  • Patent number: 10319384
    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: December 22, 2014
    Date of Patent: June 11, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Bernhard Grill, Roch Lefebvre, Bruno Bessette, Jimmy Lapierre, Philippe Gournay, Redwan Salami, Stefan Bayer, Guillaume Fuchs, Stefan Geyersberger, Ralf Geiger, Johannes Hilpert, Ulrich Kraemer, Jeremie Lecomte, Markus Multrus, Max Neuendorf, Harald Popp, Nikolaus Rettelbach
  • Patent number: 9893694
    Abstract: In order to process a subband signal of a plurality of real subband signals which are a representation of a real discrete-time signal generated by an analysis filter bank, a weighter for weighting a subband signal by a weighting factor determined for the subband signal is provided to obtain a weighted subband signal. In addition, a correction term is calculated by a correction term determiner, the correction term determiner being implemented to calculate the correction term using at least one other subband signal and using another weighting factor provided for the other subband signal, the two weighting factors differing. The correction term is then combined with the weighted subband signal to obtain a corrected subband signal, resulting in reduced aliasing, even if subband signals are weighted to a different extent.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: February 13, 2018
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Bernd Edler, Harald Popp
  • Publication number: 20170309283
    Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
    Type: Application
    Filed: July 7, 2017
    Publication date: October 26, 2017
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Nikolaus RETTELBACH, Bernhard GRILL, Guillaume FUCHS, Stefan GEYERSBERGER, Markus MULTRUS, Harald POPP, Juergen HERRE, Stefan WABNIK, Gerald SCHULLER, Jens HIRSCHFELD
  • Patent number: 9729991
    Abstract: An apparatus for generating an output signal having at least two output channels from an input signal having at least two input channels, has an ambient/direct decomposer, an ambient modification unit and a combination unit. The ambient/direct decomposer is adapted to decompose at least two input channels of the input signal such that each one of the at least two input channels is decomposed into a signal of a first signal group and into a signal of a second signal group. The ambient modification unit is adapted to modify a signal of the ambient signal group or a signal derived from a signal of the ambient signal group to obtain a modified signal as a first output channel. The combination unit is adapted to combine a signal of the ambient signal group or a signal derived from a signal of the ambient signal group and a signal of the direct signal group or a signal derived from a signal of the direct signal group as a second output channel.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: August 8, 2017
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Andreas Walther, Andreas Silzle, Oliver Hellmuth, Bernhard Grill, Harald Popp
  • Patent number: 9711157
    Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: July 18, 2017
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Nikolaus Rettelbach, Bernhard Grill, Guillaume Fuchs, Stefan Geyersberger, Markus Multrus, Harald Popp, Juergen Herre, Stefan Wabnik, Gerald Schuller, Jens Hirschfeld
  • Patent number: 9656814
    Abstract: A basic idea of the present application is that in case of determining a position of the object on the surface, it is possible to also use transport mechanisms for the transport of the object on the surface which leads to less reproducible transport movements as the regulation may be executed directly on the basis of the observed movement as compared to the desired movement. Embodiments using compressed air, magnetism and/or bending waves are described.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: May 23, 2017
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Kraegeloh, Harald Popp, Josef Bernhard, Harald Fuchs, Marc Gayer, Manfred Lutzky, Thomas Sporer, Sandra Brix
  • Publication number: 20170004839
    Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
    Type: Application
    Filed: September 15, 2016
    Publication date: January 5, 2017
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Nikolaus RETTELBACH, Bernhard GRILL, Guillaume FUCHS, Stefan GEYERSBERGER, Markus MULTRUS, Harald POPP, Juergen HERRE, Stefan WABNIK, Gerald SCHULLER, Jens HIRSCHFELD
  • Patent number: 9532136
    Abstract: An audio mixer for mixing a plurality of audio tracks to a mixture signal has a semantic command interpreter for receiving a semantic mixing command and for deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; an audio track processor for processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and an audio track combiner for combining the plurality of audio tracks processed by the audio track processor into the mixture signal. A corresponding method has: receiving a semantic mixing command; deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and combining the plurality of audio tracks resulting from the processing of the plurality of audio tracks to form the mixture signal.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: December 27, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Christian Uhle, Juergen Herre, Harald Popp, Falko Ridderbusch
  • Patent number: 9449606
    Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: September 20, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Nikolaus Rettelbach, Bernhard Grill, Guillaume Fuchs, Stefan Geyersberger, Markus Multrus, Harald Popp, Juergen Herre, Stefan Wabnik, Gerald Schuller, Jens Hirschfeld
  • Patent number: 9230557
    Abstract: An apparatus for manipulating an audio signal comprising a transient event has a transient signal replacer configured to replace a transient signal portion, comprising the transient event of the audio signal, with a replacement signal portion adapted to signal energy characteristics of one or more transient signal portions of the audio signal, or to signal energy characteristics of the transient signal portion, to obtain a transient-reduced audio signal. The apparatus also has a signal processor configured to process the transient-reduced audio signal to obtain a processed version of the transient-reduced audio signal. The apparatus also has a transient-signal-re-inserter configured to combine the processed version of the transient-reduced audio signal with a transient signal representing, in an original or processed form, a transient content of the transient signal portion.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: January 5, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Frederik Nagel, Andreas Walther, Guillaume Fuchs, Jeremie Lecomte, Harald Popp, Tilo Wik
  • Patent number: 9114940
    Abstract: A basic idea of the present application is that in case of determining a position of the object on the surface, it is possible to also use transport mechanisms for the transport of the object on the surface which leads to less reproducible transport movements as the regulation may be executed directly on the basis of the observed movement as compared to the desired movement. Embodiments using compressed air, magnetism and/or bending waves are described.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: August 25, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Kraegeloh, Harald Popp, Josef Bernhard, Harald Fuchs, Marc Gayer, Manfred Lutzky, Thomas Sporer, Sandra Brix
  • Publication number: 20150154967
    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: Application
    Filed: December 22, 2014
    Publication date: June 4, 2015
    Inventors: Bernhard GRILL, Roch LEFEBVRE, Bruno BESSETTE, Jimmy LAPIERRE, Philippe GOURNAY, Redwan SALAMI, Stefan BAYER, Guillaume FUCHS, Stefan GEYERSBERGER, Ralf GEIGER, Johannes HILPERT, Ulrich KRAEMER, Jeremie LECOMTE, Markus MULTRUS, Max NEUENDORF, Harald POPP, Nikolaus RETTELBACH
  • Patent number: 9043203
    Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: May 26, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Nikolaus Rettelbach, Bernhard Grill, Guillaume Fuchs, Stefan Geyersberger, Markus Multrus, Harald Popp, Juergen Herre, Stefan Wabnik, Gerald Schuller, Jens Hirschfeld
  • Publication number: 20150112693
    Abstract: An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
    Type: Application
    Filed: December 24, 2014
    Publication date: April 23, 2015
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Nikolaus RETTELBACH, Bernhard GRILL, Guillaume FUCHS, Stefan GEYERSBERGER, Markus MULTRUS, Harald POPP, Juergen HERRE, Stefan WABNIK, Gerald SCHULLER, Jens HIRSCHFELD