Patents by Inventor Manfred Lutzky

Manfred Lutzky 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: 20200272685
    Abstract: There are provided methods and apparatus for performing modified cosine transformation (MDCT) with an analysis/synthesis windowing function, using an analysis windowing function having a meandering portion which passes a linear function in correspondence of at least four points.
    Type: Application
    Filed: May 7, 2020
    Publication date: August 27, 2020
    Inventors: Markus SCHNELL, Manfred LUTZKY, Alexander TSCHEKALINSKIJ, Ralf GEIGER
  • Publication number: 20200265850
    Abstract: In methods and apparatus for performing temporal noise shaping, an apparatus may have a temporal noise shaping, TNS, tool for performing linear prediction, LP, filtering on an information signal including a plurality of frames; and a controller configured to control the TNS tool so that the TNS tool performs LP filtering with: a first filter whose impulse response has a higher energy; and a second filter whose impulse response has a lower energy than the first filter, wherein the second filter is not an identity filter, wherein the controller is configured to choose between filtering with the first filter, and filtering with the second filter on the basis of a frame metrics.
    Type: Application
    Filed: May 7, 2020
    Publication date: August 20, 2020
    Inventors: Emmanuel RAVELLI, Manfred LUTZKY, Markus SCHNELL, Alexander TSCHEKALINSKIJ, Goran MARKOVIC, Stefan GEYERSBERGER
  • Publication number: 20200265847
    Abstract: There are provided methods and apparatus for performing modified cosine transformation (MDCT) with an analysis/synthesis windowing function, using an analysis windowing function having a meandering portion which passes a linear function in correspondence of at least four points.
    Type: Application
    Filed: May 6, 2020
    Publication date: August 20, 2020
    Inventors: Markus SCHNELL, Manfred LUTZKY, Alexander TSCHEKALINSKIJ, Ralf GEIGER
  • Publication number: 20200265852
    Abstract: There are disclosed apparatus and methods for encoding and/or decoding information signals (e.g., audio signals). An encoder apparatus includes a plurality of frequency domain (FD) encoder tools for encoding an information signal, and an encoder bandwidth detector and controller configured to select a bandwidth for at least a subgroup of the FD encoder tools. The subgroup includes less FD encoder tools than the plurality of FD encoder tools. The selection is based on information signal characteristics, so that one of the FD encoder tools of the subgroup has a different bandwidth with respect to at least one of the FD encoder tools which are not in the subgroup.
    Type: Application
    Filed: May 4, 2020
    Publication date: August 20, 2020
    Inventors: Marku SCHNELL, Emmanuel RAVELLI, Conrad BENNDORF, Tobias ALBERT, Manfred LUTZKY, Adrian TOMASEK
  • Publication number: 20200265855
    Abstract: In methods and apparatus and non-transitory memory units for encoding/decoding audio signal information, the encoder side may determine if a signal frame is useful for long term post filtering and/or packet lost concealment and may encode information in accordance to the results of the determination, and the decoder side may apply the LTPF and/or PLC in accordance to the information obtained from the encoder.
    Type: Application
    Filed: May 6, 2020
    Publication date: August 20, 2020
    Inventors: Emmanuel RAVELLI, Adrian TOMASEK, Manfred LUTZKY, Conrad BENNDORF
  • Publication number: 20200068001
    Abstract: A network device for managing a call between user terminals checks whether a first user terminal supports usage of a first audio coding mode for the call, and a second user terminal intends to use a second audio coding mode for the call, and, if the first user terminal supports the usage of the first audio coding mode, and the second user terminal intends to use the second audio coding mode, repacks first data of the call sent from the first user terminal to the second user terminal and packetized into first packets referring to the second audio coding mode, into second packets referring to the first audio coding mode; and repacks second data of the call sent from the second user terminal to the first user terminal and packetized into third packets referring to the second audio coding mode, into fourth packets referring to the first audio coding mode.
    Type: Application
    Filed: November 5, 2019
    Publication date: February 27, 2020
    Inventors: Manfred LUTZKY, Stefan DÖHLA, Martin DIETZ
  • Publication number: 20200051578
    Abstract: A downscaled version of an audio decoding procedure may more effectively and/or at improved compliance maintenance be achieved if the synthesis window used for downscaled audio decoding is a downsampled version of a reference synthesis window involved in the non-downscaled audio decoding procedure by downsampling by the downsampling factor by which the downsampled sampling rate and the original sampling rate deviate, and downsampled using a segmental interpolation in segments of 1/4 of the frame length.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 13, 2020
    Inventors: Markus SCHNELL, Manfred LUTZKY, Eleni FOTOPOULOU, Konstantin SCHMIDT, Conrad BENNDORF, Adrian TOMASEK, Tobias ALBERT, Timon SEIDL
  • Patent number: 10446162
    Abstract: A very coarse quantization exceeding the measure determined by the masking threshold without or only very little quality losses is enabled by quantizing not immediately the prefiltered signal, but a prediction error obtained by forward-adaptive prediction of the prefiltered signal. Due to the forward adaptivity, the quantizing error has no negative effect on the prediction on the decoder side.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: October 15, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Jens Hirschfeld, Gerald Schuller, Manfred Lutzky, Ulrich Kraemer, Stefan Wabnik
  • Patent number: 10431230
    Abstract: A downscaled version of an audio decoding procedure may more effectively and/or at improved compliance maintenance be achieved if the synthesis window used for downscaled audio decoding is a downsampled version of a reference synthesis window involved in the non-downscaled audio decoding procedure by downsampling by the downsampling factor by which the downsampled sampling rate and the original sampling rate deviate, and downsampled using a segmental interpolation in segments of ¼ of the frame length.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: October 1, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung de angewandten forschung e.V.
    Inventors: Markus Schnell, Manfred Lutzky, Eleni Fotopoulou, Konstantin Schmidt, Conrad Benndorf, Adrian Tomasek, Tobias Albert, Timon Seidl
  • Publication number: 20180366133
    Abstract: A downscaled version of an audio decoding procedure may more effectively and/or at improved compliance maintenance be achieved if the synthesis window used for downscaled audio decoding is a downsampled version of a reference synthesis window involved in the non-downscaled audio decoding procedure by downsampling by the downsampling factor by which the downsampled sampling rate and the original sampling rate deviate, and downsampled using a segmental interpolation in segments of 1/4 of the frame length.
    Type: Application
    Filed: December 15, 2017
    Publication date: December 20, 2018
    Inventors: Markus SCHNELL, Manfred LUTZKY, Eleni FOTOPOULOU, Konstantin SCHMIDT, Conrad BENNDORF, Adrian TOMASEK, Tobias ALBERT, Timon SEIDL
  • Publication number: 20180012608
    Abstract: A very coarse quantization exceeding the measure determined by the masking threshold without or only very little quality losses is enabled by quantizing not immediately the prefiltered signal, but a prediction error obtained by forward-adaptive prediction of the prefiltered signal. Due to the forward adaptivity, the quantizing error has no negative effect on the prediction on the decoder side.
    Type: Application
    Filed: July 26, 2017
    Publication date: January 11, 2018
    Inventors: Jens HIRSCHFELD, Gerald Schuller, Manfred Lutzky, Ulrich Kraemer, Stefan WABNIK
  • Patent number: 9754601
    Abstract: A very coarse quantization exceeding the measure determined by the masking threshold without or only very little quality losses is enabled by quantizing not immediately the prefiltered signal, but a prediction error obtained by forward-adaptive prediction of the prefiltered signal. Due to the forward adaptivity, the quantizing error has no negative effect on the prediction on the decoder side.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: September 5, 2017
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Jens Hirschfeld, Gerald Schuller, Manfred Lutzky, Ulrich Kraemer, Stefan Wabnik
  • 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
  • Patent number: 9640191
    Abstract: An apparatus for processing an encoded signal, the encoded signal having an encoded audio signal having information on a pitch delay or a pitch gain, and a bass post-filter control parameter, has: an audio signal decoder for decoding the encoded audio signal using the information on the pitch delay or the pitch gain to obtain a decoded audio signal; a controllable bass post-filter for filtering the decoded audio signal to obtain a processed signal, wherein the controllable bass post-filter has the variable bass post-filter characteristic controllable by the bass post-filter control parameter; and a controller for setting the variable bass post-filter characteristic in accordance with the bass post-filter control parameter included in the encoded signal.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: May 2, 2017
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Guillaume Fuchs, Bernhard Grill, Manfred Lutzky, Markus Multrus
  • Publication number: 20150332700
    Abstract: An apparatus for processing an encoded signal, the encoded signal having an encoded audio signal having information on a pitch delay or a pitch gain, and a bass post-filter control parameter, has: an audio signal decoder for decoding the encoded audio signal using the information on the pitch delay or the pitch gain to obtain a decoded audio signal; a controllable bass post-filter for filtering the decoded audio signal to obtain a processed signal, wherein the controllable bass post-filter has the variable bass post-filter characteristic controllable by the bass post-filter control parameter; and a controller for setting the variable bass post-filter characteristic in accordance with the bass post-filter control parameter included in the encoded signal.
    Type: Application
    Filed: July 28, 2015
    Publication date: November 19, 2015
    Inventors: Guillaume FUCHS, Bernhard GRILL, Manfred LUTZKY, Markus MULTRUS
  • Patent number: 9124389
    Abstract: An encoder for predictively encoding a signal having a sequence of signal values has a predictor for performing an adaptive prediction in dependence on the signal, and in dependence on one or more weighting values, to obtain predicted signal values, wherein the predictor is configured to reset the weighting values at times which are dependent on the signal, and wherein the predictor is configured to adapt the weighting values to the signal between subsequent resets.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: September 1, 2015
    Assignees: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Technische Universitaet Ilemnau
    Inventors: Manfred Lutzky, Gerald Schuller, Michael Schnabel, Michael Werner
  • 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
  • Patent number: 9037457
    Abstract: An audio codec supporting both, time-domain and frequency-domain coding modes, having low-delay and an increased coding efficiency in terms of iterate/distortion ratio, is obtained by configuring the audio encoder such that same operates in different operating modes such that if the active operative mode is a first operating mode, a mode dependent set of available frame coding modes is disjoined to a first subset of time-domain coding modes, and overlaps with a second subset of frequency-domain coding modes, whereas if the active operating mode is a second operating mode, the mode dependent set of available frame coding modes overlaps with both subsets, i.e. the subset of time-domain coding modes as well as the subset of frequency-domain coding modes.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: May 19, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Ralf Geiger, Konstantin Schmidt, Bernhard Grill, Manfred Lutzky, Michael Werner, Marc Gayer, Johannes Hilpert, Maria L. Valero, Wolfgang Jaegers
  • Publication number: 20140257557
    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: Application
    Filed: May 20, 2014
    Publication date: September 11, 2014
    Applicant: 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
  • Patent number: 8775193
    Abstract: An embodiment of an apparatus for generating audio subband values in audio subband channels has an analysis windower for windowing a frame of time-domain audio input samples being in a time sequence extending from an early sample to a later sample using an analysis window function having a sequence of window coefficients to obtain windowed samples. The analysis window function has a first group of window coefficients and a second group of window coefficients. The first group of window coefficients is used for windowing later time-domain samples and the second group of window coefficients is used for windowing an earlier time-domain samples. The apparatus further has a calculator for calculating the audio subband values using the windowed samples.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: July 8, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Markus Schnell, Manfred Lutzky, Markus Lohwasser, Markus Schmidt, Marc Gayer, Michael Mellar, Bernd Edler, Markus Multrus, Gerald Schuller, Ralf Geiger, Bernhard Grill