Patents by Inventor Holger Stadali

Holger Stadali 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: 20230345400
    Abstract: An apparatus for detecting group delay information over frequency for a transmission medium has: a receiver for receiving a measurement signal, the measurement signal comprising at least a first carrier signal at a first carrier frequency, a second carrier signal at a second carrier frequency and a third carrier signal at a third carrier frequency; a frequency analyzer for analyzing the reception signal to obtain reception phase information on the first carrier signal, the second carrier signal and the third carrier signal; and a processor for forming a first combined piece of phase information and for forming a second combined piece of phase information, for forming a first piece of group delay information and for forming a second piece of group delay information, and for associating the first piece of group delay information to a first frequency and the second piece of group delay information to a second frequency.
    Type: Application
    Filed: June 28, 2023
    Publication date: October 26, 2023
    Inventors: Jörg HELLWIG, Andreas BLOHMANN, Holger STADALI
  • Patent number: 11729734
    Abstract: An apparatus for detecting group delay information over frequency for a transmission medium has: a receiver for receiving a measurement signal, the measurement signal comprising at least a first carrier signal at a first carrier frequency, a second carrier signal at a second carrier frequency and a third carrier signal at a third carrier frequency; a frequency analyzer for analyzing the reception signal to obtain reception phase information on the first carrier signal, the second carrier signal and the third carrier signal; and a processor for forming a first combined piece of phase information and for forming a second combined piece of phase information, for forming a first piece of group delay information and for forming a second piece of group delay information, and for associating the first piece of group delay information to a first frequency and the second piece of group delay information to a second frequency.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: August 15, 2023
    Assignee: GIAX GMBH
    Inventors: Jörg Hellwig, Andreas Blohmann, Holger Stadali
  • Publication number: 20210195545
    Abstract: An apparatus for detecting group delay information over frequency for a transmission medium has: a receiver for receiving a measurement signal, the measurement signal comprising at least a first carrier signal at a first carrier frequency, a second carrier signal at a second carrier frequency and a third carrier signal at a third carrier frequency; a frequency analyzer for analyzing the reception signal to obtain reception phase information on the first carrier signal, the second carrier signal and the third carrier signal; and a processor for forming a first combined piece of phase information and for forming a second combined piece of phase information, for forming a first piece of group delay information and for forming a second piece of group delay information, and for associating the first piece of group delay information to a first frequency and the second piece of group delay information to a second frequency.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 24, 2021
    Inventors: Jörg HELLWIG, Andreas BLOHMANN, Holger STADALI
  • Patent number: 10057013
    Abstract: A two-stage signaling concept for a datastream to be transmitted from a transmitter to a receiver is proposed. At the transmitter side, a plurality of frame headers are generated, each frame header including data transmission parameters for payload data. A super-frame header for a super-frame is generated. The super-frame includes a plurality of frames, each frame including one of the frame headers and payload data. The super-frame header indicates a set of super-frame-constant frame header transmission parameters for the frame headers of the plurality of frames of the super-frame. A receiver evaluates the super-frame header of to obtain the super-frame-constant frame header transmission parameters, which are then used to evaluate the plurality of frame headers PLH to retrieve the data transmission parameters. The proposed concept provides added flexibility, less signaling overhead, and/or an option of improved receiver performance at low SNR levels.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: August 21, 2018
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Holger Stadali, Stefan Lipp, Christian Rohde
  • Patent number: 9769476
    Abstract: A digital receiver includes a pre-de-interleaver processing block for receiving a receive signal including reception data units quantized using a quantization rule. The digital receiver additionally includes a controllable compressor for compressing the data units into a compressed representation, a controllable time-de-interleaver being configured for applying a varying interleaving size in data units, and a controller for controlling the controllable processor or the controllable time-de-interleaver. The controller is configured for controlling the compressor or the time-de-interleaver so that a higher interleaving size such as a higher interleaving time or a higher number of data units per second is applied, when a compression in a lower number of bits is active.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: September 19, 2017
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Marco Breiling, Holger Stadali, Amaia Anorga Gomez
  • Publication number: 20160182189
    Abstract: A two-stage signaling concept for a datastream to be transmitted from a transmitter to a receiver is proposed. At the transmitter side, a plurality of frame headers are generated, each frame header including data transmission parameters for payload data. A super-frame header for a super-frame is generated. The super-frame includes a plurality of frames, each frame including one of the frame headers and payload data. The super-frame header indicates a set of super-frame-constant frame header transmission parameters for the frame headers of the plurality of frames of the super-frame. A receiver evaluates the super-frame header of to obtain the super-frame-constant frame header transmission parameters, which are then used to evaluate the plurality of frame headers PLH to retrieve the data transmission parameters. The proposed concept provides added flexibility, less signaling overhead, and/or an option of improved receiver performance at low SNR levels.
    Type: Application
    Filed: September 21, 2015
    Publication date: June 23, 2016
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Holger STADALI, Stefan Lipp, Christian Rohde
  • Patent number: 9136982
    Abstract: A transmitter for transmitting information has a mapper for generating a plurality of mapped symbols, each mapped symbol having a first component and a second component, one of the first and second components being an in-phase component and the other of the first and second components being a quadrature component from a codeword; and a component interleaver for generating a plurality of interleaving units to be transmitted in a time sequence, the plurality of interleaving units consisting of at least three different interleaving units, wherein an interleaving unit has a plurality of pairs of first and second components, wherein the component interleaver is configured for assigning all first components and all second components of a codeword to the plurality of interleaving units in accordance with an interleaving rule, so that an I component of an mapped symbol and the Q component of the same mapped symbol are never assigned to one and the same interleaving unit, but to two different interleaving units.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: September 15, 2015
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Marco Breiling, Amaia A. Gomez, Holger Stadali
  • Publication number: 20140119473
    Abstract: A transmitter for transmitting information has a mapper for generating a plurality of mapped symbols, each mapped symbol having a first component and a second component, one of the first and second components being an in-phase component and the other of the first and second components being a quadrature component from a codeword; and a component interleaver for generating a plurality of interleaving units to be transmitted in a time sequence, the plurality of interleaving units consisting of at least three different interleaving units, wherein an interleaving unit has a plurality of pairs of first and second components, wherein the component interleaver is configured for assigning all first components and all second components of a codeword to the plurality of interleaving units in accordance with an interleaving rule, so that an I component of an mapped symbol and the Q component of the same mapped symbol are never assigned to one and the same interleaving unit, but to two different interleaving units.
    Type: Application
    Filed: December 6, 2013
    Publication date: May 1, 2014
    Inventors: Marco Breiling, Amaia Anorga Gomez, Holger Stadali
  • Patent number: 8689061
    Abstract: The inventive concept enables backward-compatible extension of existing interleaver-based transmission systems to the effect that in addition to an existing logical transport channel, which is interleaved using a standardized interleaver profile, further logical transport channels may be transmitted via the same physical transmission channel. In this context, the first transport channel obviously is reduced in terms of data rate, so that the additional transport channels may actually obtain a transmission capacity that is needed accordingly. Interleaver profiles of the further logical transport channels are derived, to this end, from the interleaver profile of the first transport channel.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: April 1, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Marco Breiling, Ernst Eberlein, Rainer Hildinger, Holger Stadali, Aharon Jesus Vargas Barroso
  • Publication number: 20130329811
    Abstract: A digital receiver includes a pre-de-interleaver processing block for receiving a receive signal including reception data units quantized using a quantization rule. The digital receiver additionally includes a controllable compressor for compressing the data units into a compressed representation, a controllable time-de-interleaver being configured for applying a varying interleaving size in data units, and a controller for controlling the controllable processor or the controllable time-de-interleaver. The controller is configured for controlling the compressor or the time-de-interleaver so that a higher interleaving size such as a higher interleaving time or a higher number of data units per second is applied, when a compression in a lower number of bits is active.
    Type: Application
    Filed: August 15, 2013
    Publication date: December 12, 2013
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Marco BREILING, Holger STADALI, Amaia ANORGA GOMES
  • Patent number: 8335962
    Abstract: A convolution interleaver for processing a codeword derived from an input block of symbols using a redundancy-adding coding, and having more symbols than the input block, wherein the codeword has a sequence of interleaving units, wherein each interleaving unit has at least two symbols, includes an interleaver. The interleaver changes the sequence of interleaving units to obtain an interleaved codeword having a changed sequence of interleaving units. In particular, the order of the symbols within an interleaving unit is not changed by the interleaver. The order of the interleaving units in the codeword among each other or with respect to a previous or subsequent codeword is changed, however.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: December 18, 2012
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Ernst Eberlein, Marco Breiling, Cedric Keip, Holger Stadali, Albert Heuberger
  • Publication number: 20110289391
    Abstract: The inventive concept enables backward-compatible extension of existing interleaver-based transmission systems to the effect that in addition to an existing logical transport channel, which is interleaved using a standardized interleaver profile, further logical transport channels may be transmitted via the same physical transmission channel. In this context, the first transport channel obviously is reduced in terms of data rate, so that the additional transport channels may actually obtain a transmission capacity that is needed accordingly. Interleaver profiles of the further logical transport channels are derived, to this end, from the interleaver profile of the first transport channel.
    Type: Application
    Filed: June 22, 2011
    Publication date: November 24, 2011
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Marco BREILING, Ernst EBERLEIN, Rainer HILDINGER, Holger STADALI, Aharon Jesus VARGAS BARROSO
  • Publication number: 20100235706
    Abstract: A convolution interleaver for processing a codeword derived from an input block of symbols using a redundancy-adding coding, and having more symbols than the input block, wherein the codeword has a sequence of interleaving units, wherein each interleaving unit has at least two symbols, includes an interleaver. The interleaver changes the sequence of interleaving units to obtain an interleaved codeword having a changed sequence of interleaving units. In particular, the order of the symbols within an interleaving unit is not changed by the interleaver. The order of the interleaving units in the codeword among each other or with respect to a previous or subsequent codeword is changed, however.
    Type: Application
    Filed: June 5, 2007
    Publication date: September 16, 2010
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Ernst Eberlein, Marco Breiling, Cedric Keip, Holger Stadali, Albert Heuberger
  • Patent number: 7653166
    Abstract: A synchronization device for determining a position of a synchronization signal in a receive signal, the synchronization signal being based on a coarse synchronization signal and a fine synchronization signal, includes a signal processing means configured to determine, based on the coarse synchronization signal, a section of the receive signal in which is located the fine synchronization signal, and to determine in the section of the receive signal, based on the fine synchronization signal, the position of the synchronization signal in the receive signal for a synchronization.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: January 26, 2010
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Carmen Wagner, Stefan Koehler, Holger Stadali, Guenter Hofmann, Marco Breiling
  • Patent number: 7649936
    Abstract: A device for detecting a correlation maximum value from a sequence of correlation magnitude values includes a means for determining a reference value from correlation magnitude values within an interval of the sequence of correlation magnitude values, the correlation magnitude value to be assessed lying external to interval. A means for determining a threshold value provides the threshold value in dependence on the reference value. A means for comparing the correlation magnitude value to be assessed with the threshold value ascertained for the correlation magnitude value to be assessed is configured to provide, depending on the comparison result, a trigger signal which indicates whether a correlation magnitude value to be assessed is a correlation maximum value.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: January 19, 2010
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Carmen Wagner, Holger Stadali
  • Patent number: 7643541
    Abstract: A device for determining a correlation value from a correlation between a first sequence of values with complex values and a second sequence of values with complex values has a correlation means for determining a first partial correlation value from a correlation between a first subset of the first sequence of values and a first subset of the second sequence of values, and for determining a second partial correlation value from a correlation between a second subset of the first sequence of values and a second subset of the second sequence of values. The device further has a processing means for determining a processed partial correlation value with an adjusted phase term from the first partial correlation value or the second partial correlation value, and a calculating means for determining the correlation value using the processed partial correlation value.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: January 5, 2010
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Carmen Wagner, Holger Stadali, Guenter Hofmann, Marco Breiling
  • Patent number: 7602856
    Abstract: A mixer for mixing a signal, present as a sequence of time-discrete values with a time interval between two time-discrete values defining a first sampling frequency from a current frequency to a target frequency, includes a first mixer implemented to convert the signal from the current frequency to an intermediate frequency to obtain an intermediate frequency signal based on the first sampling frequency, wherein a spectral interval between the intermediate frequency and the current frequency depends on the first sampling frequency. Further, the mixer includes means for converting the intermediate frequency signal into a converted intermediate frequency signal which is based on a second sampling frequency. Additionally, the mixer includes a second mixer which is implemented to convert the converted intermediate frequency signal from the intermediate frequency to the target frequency to obtain a target frequency signal which is based on the sampling frequency.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: October 13, 2009
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Carmen Wagner, Holger Stadali
  • Publication number: 20060165200
    Abstract: A synchronization device for determining a position of a synchronization signal in a receive signal, the synchronization signal being based on a coarse synchronization signal and a fine synchronization signal, includes a signal processing means configured to determine, based on the coarse synchronization signal, a section of the receive signal in which is located the fine synchronization signal, and to determine in the section of the receive signal, based on the fine synchronization signal, the position of the synchronization signal in the receive signal for a synchronization.
    Type: Application
    Filed: December 12, 2005
    Publication date: July 27, 2006
    Inventors: Carmen Wagner, Stefan Koehler, Holger Stadali, Guenter Hofmann, Marco Breiling
  • Publication number: 20060161611
    Abstract: A device for detecting a correlation maximum value from a sequence of correlation magnitude values includes a means for determining a reference value from correlation magnitude values within an interval of the sequence of correlation magnitude values, the correlation magnitude value to be assessed lying external to interval. A means for determining a threshold value provides the threshold value in dependence on the reference value. A means for comparing the correlation magnitude value to be assessed with the threshold value ascertained for the correlation magnitude value to be assessed is configured to provide, depending on the comparison result, a trigger signal which indicates whether a correlation magnitude value to be assessed is a correlation maximum value.
    Type: Application
    Filed: December 12, 2005
    Publication date: July 20, 2006
    Inventors: Carmen Wagner, Holger Stadali
  • Publication number: 20060159205
    Abstract: A device for determining a correlation value from a correlation between a first sequence of values with complex values and a second sequence of values with complex values has a correlation means for determining a first partial correlation value from a correlation between a first subset of the first sequence of values and a first subset of the second sequence of values, and for determining a second partial correlation value from a correlation between a second subset of the first sequence of values and a second subset of the second sequence of values. The device further has a processing means for determining a processed partial correlation value with an adjusted phase term from the first partial correlation value or the second partial correlation value, and a calculating means for determining the correlation value using the processed partial correlation value.
    Type: Application
    Filed: December 13, 2005
    Publication date: July 20, 2006
    Inventors: Carmen Wagner, Holger Stadali, Guenter Hofmann, Marco Breiling