Patents by Inventor Christian Dittmar

Christian Dittmar 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: 10373623
    Abstract: Subject of the invention is an apparatus described by a schematic block diagram for processing an audio signal to obtain a processed audio signal. The apparatus includes a phase calculator for calculating phase values for spectral values of a sequence of frequency-domain frames representing overlapping frames of the audio signal. Moreover, the phase calculator is configured to calculate the phase values based on information on a target time-domain envelope related to the processed audio signal, so that the processed audio signal has at least in an approximation the target time-domain envelope and a spectral envelope determined by the sequence of frequency-domain frames.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: August 6, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Christian Dittmar, Meinard Mueller, Sascha Disch
  • Publication number: 20170345433
    Abstract: Subject of the invention is an apparatus described by a schematic block diagram for processing an audio signal to obtain a processed audio signal. The apparatus includes a phase calculator for calculating phase values for spectral values of a sequence of frequency-domain frames representing overlapping frames of the audio signal. Moreover, the phase calculator is configured to calculate the phase values based on information on a target time-domain envelope related to the processed audio signal, so that the processed audio signal has at least in an approximation the target time-domain envelope and a spectral envelope determined by the sequence of frequency-domain frames.
    Type: Application
    Filed: August 21, 2017
    Publication date: November 30, 2017
    Inventors: Christian DITTMAR, Meinard MUELLER, Sascha DISCH
  • Publication number: 20150371283
    Abstract: A system is provided for managing or distributing promotional offers to one or more users, each with one or more characteristics, comprising: one or more utilities configured to track the distribution of one or more promotional offers to one or more eligible users; one or more utilities configured for defining one or more sets of rules; one or more utilities configured for applying one or more sets of rules; wherein the one or more sets of rules define various properties of the one or more promotional offers; and wherein the one or more eligible users are a subset of the one or more users.
    Type: Application
    Filed: June 24, 2015
    Publication date: December 24, 2015
    Inventors: Marie-Pier CHEVRIER, Christian DITTMAR
  • Patent number: 8566880
    Abstract: A device for providing a television sequence has a database interface, a search request receiver, a television sequence rendition module and an output interface. The database interface accesses at least one database, using a search request. The search request receiver is formed to control the database interface so as to acquire at least audio content and at least image content separate therefrom via the database interface for the search request. The television sequence rendition module combines the separate audio content and the image content to generate the television sequence based on the audio content and the image content. The output interface outputs the television sequence to a television sequence distributor.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: October 22, 2013
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Peter Dunker, Uwe Kuehhirt, Andreas Haupt, Christian Dittmar, Holger Grossman
  • Patent number: 8175730
    Abstract: In order to analyze an information signal, a significant short-time spectrum is extracted from the information signal, the means for extracting being configured to extract such short-time spectra which come closer to a specific characteristic than other short-time spectra of the information signal. The short-time spectra extracted are then decomposed into component signals using ICA analysis, a component signal spectrum representing a profile spectrum of a tone source which generates a tone corresponding to the characteristic sought for. From a sequence of short-time spectra of the information signal and from the profile spectra determined, an amplitude envelope is eventually calculated for each profile spectrum, the amplitude envelope indicating how a profile spectrum of a tone source all in all changes over time.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: May 8, 2012
    Assignee: SONY Corporation
    Inventors: Christian Dittmar, Christian Uhle, Jürgen Herre
  • Publication number: 20110179452
    Abstract: A device for providing a television sequence has a database interface, a search request receiver, a television sequence rendition module and an output interface. The database interface accesses at least one database, using a search request. The search request receiver is formed to control the database interface so as to acquire at least audio content and at least image content separate therefrom via the database interface for the search request. The television sequence rendition module combines the separate audio content and the image content to generate the television sequence based on the audio content and the image content. The output interface outputs the television sequence to a television sequence distributor.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 21, 2011
    Inventors: Peter Dunker, Uwe Kuehhirt, Andreas Haupt, Christian Dittmar, Holger Grossman
  • Publication number: 20090265024
    Abstract: In order to analyze an information signal, a significant short-time spectrum is extracted from the information signal, the means for extracting being configured to extract such short-time spectra which come closer to a specific characteristic than other short-time spectra of the information signal. The short-time spectra extracted are then decomposed into component signals using ICA analysis, a component signal spectrum representing a profile spectrum of a tone source which generates a tone corresponding to the characteristic sought for. From a sequence of short-time spectra of the information signal and from the profile spectra determined, an amplitude envelope is eventually calculated for each profile spectrum, the amplitude envelope indicating how a profile spectrum of a tone source all in all changes over time.
    Type: Application
    Filed: June 30, 2009
    Publication date: October 22, 2009
    Inventors: Christian Dittmar, Christean Uhle, Jurgen Herre
  • Patent number: 7565213
    Abstract: A significant short-time spectrum is extracted from an information signal, the means for extracting being configured to extract such short-time spectra which come closer to a specific characteristic than others. The short-time spectra extracted are then decomposed into component signals using ICA analysis, a component signal spectrum representing a profile spectrum of a tone source which generates a tone corresponding to the characteristic sought. From a sequence of short-time spectra of the information signal and from the profile spectra determined, an amplitude envelope is calculated for each profile spectrum to indicate how a tone source profile spectrum changes over time. The profile spectra and all the amplitude envelopes associated therewith provide a description of the information signal which may be evaluated further, for example for transcription purposes in the case of a music signal.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: July 21, 2009
    Assignee: Gracenote, Inc.
    Inventors: Christian Dittmar, Christian Uhle, Jürgen Herre
  • Publication number: 20060064299
    Abstract: For analyzing an information signal consisting of a superposition of partial signals, wherein a partial signal originates from an individual source, the information signal is first decomposed into several component signals. Then one or more features are calculated for each component signal, wherein the feature(s) is/are defined so that it/they provide(s) a statement on an information content of the component signal. Finally, an association of the component signals with at least two subspaces is performed on the basis of the features calculated for the component signals. By feature extraction on the component signal level, an efficient subspace decomposition which is meaningful with respect to a present audio scene is achieved.
    Type: Application
    Filed: September 13, 2005
    Publication date: March 23, 2006
    Inventors: Christian Uhle, Christian Dittmar, Thomas Sporer
  • Publication number: 20050273319
    Abstract: In order to analyze an information signal, a significant short-time spectrum is extracted from the information signal, the means for extracting being configured to extract such short-time spectra which come closer to a specific characteristic than other short-time spectra of the information signal. The short-time spectra extracted are then decomposed into component signals using ICA analysis, a component signal spectrum representing a profile spectrum of a tone source which generates a tone corresponding to the characteristic sought for. From a sequence of short-time spectra of the information signal and from the profile spectra determined, an amplitude envelope is eventually calculated for each profile spectrum, the amplitude envelope indicating how a profile spectrum of a tone source all in all changes over time.
    Type: Application
    Filed: May 5, 2005
    Publication date: December 8, 2005
    Inventors: Christian Dittmar, Christian Uhle, Jurgen Herre
  • Patent number: 5579235
    Abstract: A process for monitoring several inductive rpm sensors includes superposing a direct current voltage on an alternating voltage signal from one rpm sensor in one rpm sensor circuit to form a combined voltage signal and monitoring a voltage level of the combined voltage signal at a monitoring point in the one rpm sensor circuit to detect a fault such as a break in a sensor feed line.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: November 26, 1996
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Schlichenmaier, Klaus Haefele, Ulrich Schwabe, Christian Dittmar, Martin Blanc, Thomas Purat