Patents by Inventor Jan Frederik KIENE

Jan Frederik KIENE 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: 20250210051
    Abstract: An audio encoder according to an embodiment is provided. The audio encoder comprises a transport signal generator for generating two or more transport channels of a transport signal from audio input comprising at least one of a plurality of audio input objects and a plurality of audio input channels. Moreover, the audio encoder comprises a voice activity determiner for determining a voice activity decision for the transport signal, which indicates whether or not the audio input within the transport signal exhibits voice activity. Furthermore, the audio encoder comprises a bitstream generator for generating a bitstream depending on the audio input.
    Type: Application
    Filed: March 9, 2025
    Publication date: June 26, 2025
    Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Srikanth KORSE, Stefan BAYER, Markus MULTRUS, Guillaume FUCHS, Andrea EICHENSEER, Kacper SAGNOWSKI, Stefan DÖHLA, Jan Frederik KIENE
  • Publication number: 20250210052
    Abstract: An audio decoder according to an embodiment comprises an input interface for receiving a bitstream which depends on audio content comprising at least one of a plurality of audio objects and a plurality of audio channels; wherein a transport signal comprising two or more transport channels is encoded within the bitstream, and the audio content is encoded within the transport signal; or wherein information on a background noise is encoded within the bitstream instead of the transport signal, wherein the information on the background noise comprises information on a background noise of at least one of the two or more transport channels or information on a background noise of a derived signal which depends on at least one of the two or more transport channels, and comprises a renderer for generating one or more audio output signals depending on the audio content being encoded with the bitstream.
    Type: Application
    Filed: March 9, 2025
    Publication date: June 26, 2025
    Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Srikanth KORSE, Stefan BAYER, Markus MULTRUS, Guillaume FUCHS, Andrea EICHENSEER, Kacper SAGNOWSKI, Stefan DÖHLA, Jan Frederik KIENE
  • Publication number: 20240177720
    Abstract: A processor for processing an (encoded) audio signal, the processor comprising: an LTP buffer configured to receive samples derived from a frame of the encoded audio signal; an interval splitter configured to divide a time interval associated with a subsequent frame of the encoded audio signal into sub-intervals depending on the encoded pitch parameter; calculation means configured to derive sub-interval parameters from the encoded pitch parameter dependent on a position of the sub-intervals within the time interval associated with the subsequent frame of the encoded audio signal; a predictor configured for generating a prediction signal from the LTP buffer dependent on the sub-interval parameters; and a frequency domain transformer configured for generating a prediction spectrum (XP) based on the prediction signal.
    Type: Application
    Filed: January 5, 2024
    Publication date: May 30, 2024
    Inventors: Goran MARKOVIC, Bernd EDLER, Stefan BAYER, Jan Frederik KIENE
  • Publication number: 20230206930
    Abstract: A signal generator for generating a multichannel signal, having: first and a second audio sources, generating first and second audio signals, respectively; a mixing noise source, generating a noise signal; a mixer, mixing the noise signal and the first audio signal to derive a first channel, and the noise signal and the second audio signal to derive a second channel. An audio encoder includes: an activity detector, analyzing a multichannel signal to determine a frame to be an inactive frame; a noise parameter calculator, calculating first and second parametric noise data for first and second channels, respectively; a coherence calculator, calculating coherence data indicating coherence between the first and the second channel in the inactive frame; and an output interface, generating the encoded multichannel audio signal comprising encoded audio data for an active frame and, for the inactive frame, the first and second parametric noise data and the coherence data.
    Type: Application
    Filed: February 27, 2023
    Publication date: June 29, 2023
    Inventors: Emmanuel RAVELLI, Jan Frederik KIENE, Guillaume FUCHS, Srikanth KORSE, Markus MULTRUS, Eleni FOTOPOULOU
  • Publication number: 20230197090
    Abstract: An audio quantizer for quantizing a plurality of audio information items has: a first stage vector quantizer for quantizing the plurality of audio information items to determine a first stage vector quantization result and a plurality of intermediate quantized items corresponding to the first stage vector quantization result; a residual item determiner for calculating a plurality of residual items from the plurality of intermediate quantized items and the plurality of audio information items; and a second stage vector quantizer for quantizing the plurality of residual items to obtain a second stage vector quantization result, wherein the first stage vector quantization result and the second stage vector quantization result are a quantized representation of the plurality of audio information items.
    Type: Application
    Filed: January 5, 2023
    Publication date: June 22, 2023
    Inventors: Emmanuel RAVELLI, Goran MARKOVIC, Jan Frederik KIENE, Franz REUTELHUBER, Stefan DÖHLA, Eleni FOTOPOULOU
  • Publication number: 20230133513
    Abstract: Audio decoder for decoding an encoded audio signal having multi-channel audio data having data for two or more audio channels, and information on jointly encoded scale parameters, having: a scale parameter decoder for decoding the information on the jointly encoded scale parameters to obtain a first and a second set of scale parameters for a first channel and a second channel, respectively, of a decoded audio signal; and a signal processor for applying the first and second sets of scale parameters to a first and second channel representation, respectively, derived from the multi-channel audio data to obtain the first and second channels of the decoded audio signal, wherein the jointly encoded scale parameters have information on a first group and on a second group of jointly encoded scale parameters, and wherein the scale parameter decoder is configured to combine a jointly encoded scale parameter of the first group and one of the second group using a first and a second combination rule, respectively, to obta
    Type: Application
    Filed: December 21, 2022
    Publication date: May 4, 2023
    Inventors: Emmanuel RAVELLI, Goran MARKOVIC, Jan Frederik KIENE, Franz REUTELHUBER, Stefan DÖHLA, Eleni FOTOPOULOU