Patents by Inventor Stefan Kraegeloh

Stefan Kraegeloh 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: 10349092
    Abstract: An encoder for encoding secondary media data including metadata and control data for primary media data is shown, wherein the encoder is configured to encode the secondary media data using adding redundancy or bandlimiting and wherein the encoder is configured to output the encoded secondary media data as a stream of digital words. Therefore, the stream of digital words may be formed such that it is capable to resist a typical processing of a digital audio stream. Furthermore, processors for processing a digital audio stream are able to process the stream of digital words, since the stream of digital words may be designed as an audio-like or analog-like digital stream.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: July 9, 2019
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Robert Bleidt, Tobias Bliem, Stefan Kraegeloh
  • Patent number: 9917978
    Abstract: A watermark generator for providing a watermark signal as a sequence of subsequent watermark coefficients based on a stream of subsequent stream values representing discrete valued data includes a differential encoder. The differential encoder is configured to apply a phase rotation to a current stream value of the stream values representing the discrete valued data or to a current watermark symbol, the current watermark symbol corresponding to a current stream value of the stream values representing the discrete valued data, to obtain a current watermark coefficient of the watermark signal. The differential encoder is configured to derive a phase of a previous spectral coefficient of a watermarked signal which is a combination of the host signal and the watermark signal, and to provide the watermark signal such that a phase angle of the phase rotation applied to the current stream value or the current watermark symbol is dependent on the phase of the previous spectral coefficient of the watermarked signal.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: March 13, 2018
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Reinhard Zitzmann, Giovanni Del Galdo, Tobias Bliem, Juliane Borsum, Bert Greevenbosch, Stefan Kraegeloh, Joerg Pickel
  • Publication number: 20180007398
    Abstract: An encoder for encoding secondary media data including metadata and control data for primary media data is shown, wherein the encoder is configured to encode the secondary media data using adding redundancy or bandlimiting and wherein the encoder is configured to output the encoded secondary media data as a stream of digital words. Therefore, the stream of digital words may be formed such that it is capable to resist a typical processing of a digital audio stream. Furthermore, processors for processing a digital audio stream are able to process the stream of digital words, since the stream of digital words may be designed as an audio-like or analog-like digital stream.
    Type: Application
    Filed: May 8, 2017
    Publication date: January 4, 2018
    Inventors: Robert BLEIDT, Tobias BLIEM, Stefan KRAEGELOH
  • Publication number: 20170230693
    Abstract: Audio splicing is rendered more effective by the use of one or more truncation unit packets inserted into the audio data stream so as to indicate to an audio decoder, for a predetermined access unit, an end portion of an audio frame with which the predetermined access unit is associated, as to be discarded in playout.
    Type: Application
    Filed: March 7, 2017
    Publication date: August 10, 2017
    Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Herbert Thoma, Robert Bleidt, Stefan Kraegeloh, Max Neuendorf, Achim Kuntz, Andreas Niedermeier, Michael Kratschmer
  • Patent number: 9659232
    Abstract: An apparatus for determining a position of an object relative to a representation of an image to be represented includes a position pattern generator for generating a position pattern subdivided into a plurality of pattern portions, each of the pattern portions having an unambiguous bit pattern of a plurality of bit patterns, and the bit patterns being Gray-coded in a generalized manner; a combination unit for combining the position pattern with the at least one image to be represented and for providing a corresponding combined image; an optical sensor for optically sensing an image section of the combined image, being correlated with the object position; a filter for extracting at least one bit pattern corresponding to a pattern portion of the position pattern, from the image section and for providing at least one corresponding extracted pattern portion; and a determiner for determining the object position based on the extracted bit pattern.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: May 23, 2017
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Kraegeloh, Tobias Bliem, Joerg Pickel, Christian Vey, Rinat Zeh
  • 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
  • Publication number: 20170078519
    Abstract: A watermark generator for providing a watermark signal as a sequence of subsequent watermark coefficients based on a stream of subsequent stream values representing discrete valued data includes a differential encoder. The differential encoder is configured to apply a phase rotation to a current stream value of the stream values representing the discrete valued data or to a current watermark symbol, the current watermark symbol corresponding to a current stream value of the stream values representing the discrete valued data, to obtain a current watermark coefficient of the watermark signal. The differential encoder is configured to derive a phase of a previous spectral coefficient of a watermarked signal which is a combination of the host signal and the watermark signal, and to provide the watermark signal such that a phase angle of the phase rotation applied to the current stream value or the current watermark symbol is dependent on the phase of the previous spectral coefficient of the watermarked signal.
    Type: Application
    Filed: November 4, 2016
    Publication date: March 16, 2017
    Inventors: Reinhard ZITZMANN, Giovanni DEL GALDO, Tobias BLIEM, Juliane BORSUM, Bert GREEVENBOSCH, Stefan KRAEGELOH, Joerg PICKEL
  • Patent number: 9514500
    Abstract: A watermark generator for providing a watermark signal as a sequence of subsequent watermark coefficients based on a stream of subsequent stream values representing discrete valued data includes a differential encoder. The differential encoder is configured to apply a phase rotation to a current stream value of the stream values representing the discrete valued data or to a current watermark symbol, the current watermark symbol corresponding to a current stream value of the stream values representing the discrete valued data, to obtain a current watermark coefficient of the watermark signal. The differential encoder is configured to derive a phase of a previous spectral coefficient of a watermarked signal which is a combination of the host signal and the watermark signal, and to provide the watermark signal such that a phase angle of the phase rotation applied to the current stream value or the current watermark symbol is dependent on the phase of the previous spectral coefficient of the watermarked signal.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: December 6, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Reinhard Zitzmann, Giovanni Del Galdo, Tobias Bliem, Juliane Borsum, Bert Greevenbosch, Stefan Kraegeloh, Joerg Pickel
  • Patent number: 9350700
    Abstract: A watermark generator for providing a watermark signal in dependence on binary message data includes an information processor configured to provide, in dependence on information units of the binary message data, a first time-frequency domain representation, values of which represent the binary message data. The watermark generator also includes a differential encoder configured to derive a second time-frequency domain representation from the first time-frequency-domain representation, such that the second time-frequency-domain representation includes a plurality of values, wherein a difference between two values of the second time-frequency-domain representation represents a corresponding value of the first time-frequency-domain representation, in order to obtain a differential encoding of the values of the first time-frequency-domain representation.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: May 24, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Wabnik, Joerg Pickel, Bert Greevenbosch, Bernhard Grill, Ernst Eberlein, Giovanni Del Galdo, Stefan Kraegeloh, Reinhard Zitzmann, Tobias Bliem, Marco Breiling, Juliane Borsum
  • Patent number: 9299356
    Abstract: A watermark decoder includes a time-frequency-domain representation provider, a memory unit, a synchronization determiner and a watermark extractor. The time-frequency-domain representation provider provides a frequency-domain representation of the watermarked signal for a plurality of time blocks. The memory unit stores the frequency-domain representation of the watermarked signal for a plurality of time blocks. Further, the synchronization determiner identifies an alignment time block based on the frequency-domain representation of the watermarked signal of a plurality of time blocks. The watermark extractor provides binary message data based on stored frequency-domain representations of the watermarked signal of time blocks temporally preceding the identified alignment time block considering a distance to the identified alignment time block.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: March 29, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Wabnik, Joerg Pickel, Bert Greevenbosch, Bernhard Grill, Ernst Eberlein, Giovanni Del Galdo, Stefan Kraegeloh, Reinhard Zitzmann, Tobias Bliem, Marco Breiling, Juliane Borsum
  • Patent number: 9236091
    Abstract: An apparatus for processing stored data packets in a media data container and stored associated meta information in a metadata container, the associated meta information having transport timing information and location information indicating a storage location of the stored data packets in the media data container, the apparatus having a processor for determining, based on the stored data packets and the stored associated meta information, decoding information for a media payload of the stored data packets, wherein the decoding information indicates at which time instant to replay which payload of the stored data packets.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: January 12, 2016
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Stefan Doehla, Stefan Kraegeloh, Nikolaus Faerber, Harald Fuchs
  • Patent number: 9214159
    Abstract: A watermark signal provider comprises a time-frequency-domain waveform provider to provide time-domain waveforms for a plurality of frequency subbands. The time-frequency-domain waveform provider is configured to map a given value of a time-frequency-domain representation onto a bit shaping function, a temporal extension of which is longer than a bit interval, such that there is a temporal overlap between bit shaped functions provided for temporally subsequent values of the time-frequency-domain representation of the same frequency subband. A time-domain waveform of a given frequency subband contains a plurality of bit shaped functions provided for temporally subsequent values of the time-frequency-domain representation. The water mark signal provider further has a time-domain waveform combiner.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: December 15, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Reinhard Zitzmann, Stefan Wabnik, Joerg Pickel, Bert Greevenbosch, Bernhard Grill, Ernst Eberlein, Giovanni Del Galdo, Stefan Kraegeloh, Tobias Bliem, Juliane Borsum, Marco Breiling
  • Patent number: 9165121
    Abstract: A device for controlling a service access authorization for a user device with regard to an access-restricted service includes a service access authorization provider, the service access authorization provider being configured to set a period of time in which the service access authorization is valid, responsive to an authorization message provided with a service-dependent user identifier, and the service access authorization provider being configured to disable an authorization allowing the service access authorization to be extended or reactivated using the previous service-dependent user identifier when at least a predetermined duration has passed since an end of a last authorization time interval for which a service access authorization was determined by the device.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: October 20, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Birgit Bartel-Kurz, Stefan Kraegeloh, Markus Prosch, Rinat Zeh
  • 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: 9037453
    Abstract: An embedder for embedding a watermark to be embedded into an input information representation comprises an embedding parameter determiner that is implemented to apply a derivation function once or several times to an initial value to obtain an embedding parameter for embedding the watermark into the input information representation. Further, the embedder comprises a watermark adder that is implemented to provide the input information representation with the watermark using the embedding parameter. The embedder is implemented to select how many times the derivation function is to be applied to the initial value.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: May 19, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Bernhard Grill, Ernst Eberlein, Stefan Kraegeloh, Joerg Pickel, Juliane Borsum
  • Patent number: 9009791
    Abstract: A device for controlling a service access authorization for a user device with regard to an access-restricted service includes a service access authorization provider, the service access authorization provider being configured to set a period of time in which the service access authorization is valid, responsive to an authorization message provided with a service-dependent user identifier, and the service access authorization provider being configured to disable an authorization allowing the service access authorization to be extended or reactivated using the previous service-dependent user identifier when at least a predetermined duration has passed since an end of a last authorization time interval for which a service access authorization was determined by the device.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: April 14, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Birgit Bartel-Kurz, Stefan Kraegeloh, Markus Prosch, Rinat Zeh
  • Patent number: 8989885
    Abstract: A watermark generator for providing a watermark signal in dependence on binary message data includes an information processor configured to provide, in dependence on a single message bit of the binary message data, a 2-dimensional spread information representing the message bit in the form of a set of time-frequency-domain values. The watermark generator also includes a watermark signal provider configured to provide the watermark signal on the basis of the 2-dimensional spread information. A watermark detector, methods and computer programs are also described.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: March 24, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Wabnik, Jörg Pickel, Bert Greevenbosch, Bernhard Grill, Ernst Eberlein, Giovanni Del Galdo, Stefan Krägeloh, Reinhard Zitzmann, Tobias Bliem, Marco Breiling, Juliane Borsum
  • Patent number: 8965547
    Abstract: A watermark signal provider provides a watermark signal suitable for being hidden in an audio signal when the watermark signal is added to the audio signal, such that the watermark signal represents watermark data. The watermark signal provider includes a psychoacoustical processor for determining a masking threshold of the audio signal; and a modulator for generating the watermark signal from a superposition of sample-shaping functions spaced apart from each other at a sample time interval of a time-discrete representation of the watermark data, each sample-shaping function being amplitude-weighted with a respective sample of the time-discrete representation, multiplied by a respective amplitude weight depending on the masking threshold, the modulator being configured such that the sample time interval is shorter than a time extension of the sample-shaping functions; and the respective amplitude weight also depends on samples of the time-discrete representation neighboring the respective sample in time.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: February 24, 2015
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Wabnik, Joerg Pickel, Bert Greevenbosch, Bernhard Grill, Ernst Eberlein, Giovanni Del Galdo, Stefan Kraegeloh, Reinhard Zitzmann, Tobias Bliem, Marco Breiling, Juliane Borsum
  • Publication number: 20140348379
    Abstract: An apparatus for determining a position of an object relative to a representation of an image to be represented includes a position pattern generator for generating a position pattern subdivided into a plurality of pattern portions, each of the pattern portions having an unambiguous bit pattern of a plurality of bit patterns, and the bit patterns being Gray-coded in a generalized manner; a combination unit for combining the position pattern with the at least one image to be represented and for providing a corresponding combined image; an optical sensor for optically sensing an image section of the combined image, being correlated with the object position; a filter for extracting at least one bit pattern corresponding to a pattern portion of the position pattern, from the image section and for providing at least one corresponding extracted pattern portion; and a determiner for determining the object position based on the extracted bit pattern.
    Type: Application
    Filed: May 14, 2014
    Publication date: November 27, 2014
    Inventors: Stefan KRAEGELOH, Tobias BLIEM, Joerg PICKEL, Christian VEY, Rinat ZEH
  • Patent number: 8863306
    Abstract: A digital rights management method includes: storing information on a rights object in a memory area, wherein the rights object has been transferred from a first device to a second device, and wherein the rights object includes permissions linked to a digital media object; receiving a rights object at the first device; and accessing the memory area to check whether information on the received rights object is stored in the memory area and to set up the received rights object on the first device in case the information on the received rights object is not stored in the memory area, and to reject the received rights object in case the information on the received rights object is stored in the memory area.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: October 14, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Bert Greevenbosch, Stefan Kraegeloh, Harald Fuchs, Mercè Serra Joan