Patents by Inventor Falko Ridderbusch

Falko Ridderbusch 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: 11381925
    Abstract: A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K<N. The multi-channel decorrelator is configured to provide a first set of K? decorrelator output signals on the basis of the second set of K decorrelator input signals. The multi-channel decorrelator is further configured to upmix the first set of K? decorrelator output signals into a second set of N? decorrelator output signals, wherein N?>K?. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: July 5, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderang der angewandten Forschung e.V.
    Inventors: Sascha Disch, Harald Fuchs, Oliver Hellmuth, Juergen Herre, Adrian Murtaza, Jouni Paulus, Falko Ridderbusch, Leon Terentiv
  • Publication number: 20220167102
    Abstract: A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K<N. The multi-channel decorrelator is configured to provide a first set of K? decorrelator output signals on the basis of the second set of K decorrelator input signals. The multi-channel decorrelator is further configured to upmix the first set of K? decorrelator output signals into a second set of N? decorrelator output signals, wherein N?>K?. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.
    Type: Application
    Filed: August 27, 2021
    Publication date: May 26, 2022
    Inventors: Sascha DISCH, Harald FUCHS, Oliver HELLMUTH, Juergen HERRE, Adrian MURTAZA, Jouni PAULUS, Falko RIDDERBUSCH, Leon TERENTIV
  • Patent number: 11330386
    Abstract: An apparatus for generating one or more audio output channels is provided. The apparatus includes a parameter processor for calculating output channel mixing information and a downmix processor for generating the one or more audio output channels. The downmix processor is configured to receive an audio transport signal including one or more audio transport channels, wherein two or more audio object signals are mixed within the audio transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the two or more audio object signals. The audio transport signal depends on a first mixing rule and on a second mixing rule. The first mixing rule indicates how to mix the two or more audio object signals to obtain a plurality of premixed channels. Moreover, the second mixing rule indicates how to mix the plurality of premixed channels.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: May 10, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Harald Fuchs, Oliver Hellmuth, Juergen Herre, Adrian Murtaza, Jouni Paulus, Falko Ridderbusch, Leon Terentiv
  • Patent number: 11252523
    Abstract: A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K<N. The multi-channel decorrelator is configured to provide a first set of K? decorrelator output signals on the basis of the second set of K decorrelator input signals. The multi-channel decorrelator is further configured to upmix the first set of K? decorrelator output signals into a second set of N? decorrelator output signals, wherein N?>K?. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: February 15, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Harald Fuchs, Oliver Hellmuth, Juergen Herre, Adrian Murtaza, Jouni Paulus, Falko Ridderbusch, Leon Terentiv
  • Patent number: 11240619
    Abstract: A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K<N. The multi-channel decorrelator is configured to provide a first set of K? decorrelator output signals on the basis of the second set of K decorrelator input signals. The multi-channel decorrelator is further configured to upmix the first set of K? decorrelator output signals into a second set of N? decorrelator output signals, wherein N?>K?. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: February 1, 2022
    Assignee: Fraunhofer-Gesellschaft zur Foerderang der angewandten Forschung e.V.
    Inventors: Sascha Disch, Harald Fuchs, Oliver Hellmuth, Juergen Herre, Adrian Murtaza, Jouni Paulus, Falko Ridderbusch, Leon Terentiv
  • Patent number: 11115770
    Abstract: A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K<N. The multi-channel decorrelator is configured to provide a first set of K? decorrelator output signals on the basis of the second set of K decorrelator input signals. The multi-channel decorrelator is further configured to upmix the first set of K? decorrelator output signals into a second set of N? decorrelator output signals, wherein N?>K?. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: September 7, 2021
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Harald Fuchs, Oliver Hellmuth, Juergen Herre, Adrian Murtaza, Jouni Paulus, Falko Ridderbusch, Leon Terentiv
  • Publication number: 20210118454
    Abstract: A decoder for generating an audio output signal having one or more audio output channels includes a receiving interface for receiving an audio input signal including a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated. Moreover, the decoder includes a signal processor for generating the one or more audio output channels of the audio output signal. The signal processor is configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information. Furthermore, the signal processor is configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. Moreover, an encoder is provided.
    Type: Application
    Filed: December 8, 2020
    Publication date: April 22, 2021
    Inventors: Jouni Paulus, Sascha Disch, Harald Fuchs, Bernhard Grill, Oliver Hellmuth, Adrian Murtaza, Falko Ridderbusch, Leon Terentiv
  • Patent number: 10891963
    Abstract: A decoder for generating an audio output signal having one or more audio output channels is provided. The decoder includes a receiving interface for receiving an audio input signal including a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated. Moreover, the decoder includes a signal processor for generating the one or more audio output channels of the audio output signal. The signal processor is configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information. Furthermore, the signal processor is configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. Moreover, an encoder is provided.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: January 12, 2021
    Inventors: Jouni Paulus, Sascha Disch, Harald Fuchs, Bernhard Grill, Oliver Hellmuth, Adrian Murtaza, Falko Ridderbusch, Leon Terentiv
  • Publication number: 20200304932
    Abstract: An apparatus for generating one or more audio output channels is provided. The apparatus includes a parameter processor for calculating output channel mixing information and a downmix processor for generating the one or more audio output channels. The downmix processor is configured to receive an audio transport signal including one or more audio transport channels, wherein two or more audio object signals are mixed within the audio transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the two or more audio object signals. The audio transport signal depends on a first mixing rule and on a second mixing rule. The first mixing rule indicates how to mix the two or more audio object signals to obtain a plurality of premixed channels. Moreover, the second mixing rule indicates how to mix the plurality of premixed channels.
    Type: Application
    Filed: May 21, 2020
    Publication date: September 24, 2020
    Inventors: Sascha DISCH, Harald FUCHS, Oliver HELLMUTH, Juergen HERRE, Adrian MURTAZA, Jouni PAULUS, Falko RIDDERBUSCH, Leon TERENTIV
  • Publication number: 20200286496
    Abstract: A decoder for generating an audio output signal having one or more audio output channels is provided, having a receiving interface for receiving an audio input signal having a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated, further having a signal processor for generating the one or more audio output channels of the audio output signal, configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information, and configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. One or more by-pass audio object signals are employed for generating the audio output signal. Moreover, an encoder is provided.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 10, 2020
    Inventors: Jouni Paulus, Sascha Disch, Harald Fuchs, Bernhard Grill, Oliver Hellmuth, Adrian Murtaza, Falko Ridderbusch, Leon Terentiv
  • Patent number: 10701504
    Abstract: An apparatus for generating one or more audio output channels is provided. The apparatus includes a parameter processor for calculating output channel mixing information and a downmix processor for generating the one or more audio output channels. The downmix processor is configured to receive an audio transport signal including one or more audio transport channels, wherein two or more audio object signals are mixed within the audio transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the two or more audio object signals. The audio transport signal depends on a first mixing rule and on a second mixing rule. The first mixing rule indicates how to mix the two or more audio object signals to obtain a plurality of premixed channels. Moreover, the second mixing rule indicates how to mix the plurality of premixed channels.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: June 30, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Harald Fuchs, Oliver Hellmuth, Juergen Herre, Adrian Murtaza, Jouni Paulus, Falko Ridderbusch, Leon Terentiv
  • Patent number: 10699722
    Abstract: A decoder for generating an audio output signal having one or more audio output channels is provided, having a receiving interface for receiving an audio input signal having a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated, further having a signal processor for generating the one or more audio output channels of the audio output signal, configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information, and configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. One or more by-pass audio object signals are employed for generating the audio output signal. Moreover, an encoder is provided.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: June 30, 2020
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Jouni Paulus, Sascha Disch, Harald Fuchs, Bernhard Grill, Oliver Hellmuth, Adrian Murtaza, Falko Ridderbusch, Leon Terentiv
  • Patent number: 10607615
    Abstract: An apparatus for decoding an encoded audio signal to obtain modified output signals includes an input interface for receiving a transmitted downmix signal and parametric data relating to audio objects included in the transmitted downmix signal, the downmix signal being different from an encoder downmix signal, to which the parametric data is related; a downmix modifier for modifying the transmitted downmix signal using a downmix modification function, wherein the downmix modification is performed in such a way that a modified downmix signal is identical to the encoder downmix signal or is more similar to the encoder downmix signal compared to the transmitted downmix signal; an object renderer for rendering the audio objects using the modified downmix signal and the parametric data to obtain output signals; and an output signal modifier for modifying the output signals using an output signal modification function.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 31, 2020
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Jouni Paulus, Leon Terentiv, Harald Fuchs, Oliver Hellmuth, Adrian Murtaza, Falko Ridderbusch
  • Publication number: 20200058313
    Abstract: A decoder for generating an audio output signal having one or more audio output channels is provided. The decoder includes a receiving interface for receiving an audio input signal including a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated. Moreover, the decoder includes a signal processor for generating the one or more audio output channels of the audio output signal. The signal processor is configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information. Furthermore, the signal processor is configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. Moreover, an encoder is provided.
    Type: Application
    Filed: October 18, 2019
    Publication date: February 20, 2020
    Inventors: Jouni Paulus, Sascha Disch, Harald Fuchs, Bernhard Grill, Oliver Hellmuth, Adrian Murtaza, Falko Ridderbusch, Leon Terentiv
  • Patent number: 10497376
    Abstract: A decoder for generating an audio output signal having one or more audio output channels is provided. The decoder includes a receiving interface for receiving an audio input signal including a plurality of audio object signals, for receiving loudness information on the audio object signals, and for receiving rendering information indicating whether one or more of the audio object signals shall be amplified or attenuated. Moreover, the decoder includes a signal processor for generating the one or more audio output channels of the audio output signal. The signal processor is configured to determine a loudness compensation value depending on the loudness information and depending on the rendering information. Furthermore, the signal processor is configured to generate the one or more audio output channels of the audio output signal from the audio input signal depending on the rendering information and depending on the loudness compensation value. Moreover, an encoder is provided.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 3, 2019
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Jouni Paulus, Sascha Disch, Harald Fuchs, Bernhard Grill, Oliver Hellmuth, Adrian Murtaza, Falko Ridderbusch, Leon Terentiv
  • Patent number: 10497375
    Abstract: An apparatus for adapting input audio information, encoding one or more audio objects, to obtain adapted audio information is provided. The input audio information includes two or more input audio downmix channels and further includes input parametric side information. The adapted audio information includes one or more adapted audio downmix channels and further includes adapted parametric side information. The apparatus includes a downmix signal modifier for adapting, depending on adaptation information, the two or more input audio downmix channels to obtain the one or more adapted audio downmix channels. Moreover, the apparatus includes a parametric side information adapter for adapting, depending on the adaptation information, the input parametric side information to obtain the adapted parametric side information.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: December 3, 2019
    Assignee: Fraunhofer—Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Thorsten Kastner, Juergen Herre, Leon Terentiv, Oliver Hellmuth, Jouni Paulus, Falko Ridderbusch
  • Patent number: 10482888
    Abstract: An apparatus for encoding one or more audio objects to obtain an encoded signal is provided. The apparatus includes a for downmixing the one or more audio objects to obtain one or more unprocessed downmix signals. Moreover, the apparatus includes a processing module and a signal calculator. The signal calculator is configured to calculate each of one or more additional signals based on a difference between one of one or more processed downmix signals and one of the one or more unprocessed downmix signals. Moreover, the apparatus includes an object information generator. Furthermore, the apparatus includes an output interface for outputting the encoded signal. Moreover, a corresponding apparatus for decoding is provided.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: November 19, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Thorsten Kastner, Juergen Herre, Falko Ridderbusch, Cornelia Falch
  • Patent number: 10448185
    Abstract: A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K<N. The multi-channel decorrelator is configured to provide a first set of K? decorrelator output signals on the basis of the second set of K decorrelator input signals. The multi-channel decorrelator is further configured to upmix the first set of K? decorrelator output signals into a second set of N? decorrelator output signals, wherein N?>K?. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: October 15, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Harald Fuchs, Oliver Hellmuth, Juergen Herre, Adrian Murtaza, Jouni Paulus, Falko Ridderbusch, Leon Terentiv
  • Patent number: 10431227
    Abstract: A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to render a plurality of decoded audio signals, which are obtained on the basis of the encoded representation, in dependence on one or more rendering parameters, to obtain a plurality of rendered audio signals. The multi-channel audio decoder is configured to derive one or more decorrelated audio signals from the rendered audio signals, and to combine the rendered audio signals, or a scaled version thereof, with the one or more decorrelated audio signals, to obtain the output audio signals. A multi-channel audio encoder provides a decorrelation method parameter to control an audio decoder.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: October 1, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Sascha Disch, Harald Fuchs, Oliver Hellmuth, Juergen Herre, Adrian Murtaza, Jouni Paulus, Falko Ridderbusch, Leon Terentiv
  • Publication number: 20190124459
    Abstract: A multi-channel decorrelator for providing a plurality of decorrelated signals on the basis of a plurality of decorrelator input signals is configured to premix a first set of N decorrelator input signals into a second set of K decorrelator input signals, wherein K<N. The multi-channel decorrelator is configured to provide a first set of K? decorrelator output signals on the basis of the second set of K decorrelator input signals. The multi-channel decorrelator is further configured to upmix the first set of K? decorrelator output signals into a second set of N? decorrelator output signals, wherein N?>K?. The multi-channel decorrelator can be used in a multi-channel audio decoder. A multi-channel audio encoder provides complexity control information for the multi-channel decorrelator.
    Type: Application
    Filed: December 20, 2018
    Publication date: April 25, 2019
    Inventors: Sascha DISCH, Harald FUCHS, Oliver HELLMUTH, Juergen HERRE, Adrian MURTAZA, Jouni PAULUS, Falko RIDDERBUSCH, Leon TERENTIV