Patents by Inventor Stephan Schreiner
Stephan Schreiner 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).
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Publication number: 20190287540Abstract: An apparatus for downmixing three or more audio input channels to obtain two or more audio output channels is provided. The apparatus includes a receiving interface for receiving the three or more audio input channels and for receiving side information. Moreover, the apparatus includes a downmixer for downmixing the three or more audio input channels depending on the side information to obtain the two or more audio output channels. The number of the audio output channels is smaller than the number of the audio input channels. The side information indicates a characteristic of at least one of the three or more audio input channels, or a characteristic of one or more sound waves recorded within the one or more audio input channels, or a characteristic of one or more sound sources which emitted one or more sound waves recorded within the one or more audio input channels.Type: ApplicationFiled: June 3, 2019Publication date: September 19, 2019Inventors: Arne BORSUM, Stephan SCHREINER, Harald FUCHS, Michael KRATZ, Bernhard GRILL, Sebastian SCHARRER
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Patent number: 10347259Abstract: An apparatus for downmixing three or more audio input channels to obtain two or more audio output channels is provided. The apparatus includes a receiving interface for receiving the three or more audio input channels and for receiving side information. Moreover, the apparatus includes a downmixer for downmixing the three or more audio input channels depending on the side information to obtain the two or more audio output channels. The number of the audio output channels is smaller than the number of the audio input channels. The side information indicates a characteristic of at least one of the three or more audio input channels, or a characteristic of one or more sound waves recorded within the one or more audio input channels, or a characteristic of one or more sound sources which emitted one or more sound waves recorded within the one or more audio input channels.Type: GrantFiled: May 15, 2017Date of Patent: July 9, 2019Assignee: FRAUNHOFER_GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Arne Borsum, Stephan Schreiner, Harald Fuchs, Michael Kratz, Bernhard Grill, Sebastian Scharrer
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Patent number: 10074377Abstract: An audio encoder device includes an audio encoder configured for producing an encoded audio bitstream from an audio signal having consecutive audio frames; a dynamic range control encoder configured for producing an encoded dynamic range control bitstream from an dynamic range control sequence corresponding to the audio signal and having consecutive dynamic range control frames, wherein each dynamic range control frame of the dynamic range control frames has one or more nodes, wherein each node of the one or more nodes has gain information for the audio signal and time information indicating to which point in time the gain information corresponds.Type: GrantFiled: September 22, 2016Date of Patent: September 11, 2018Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Fabian Kuech, Christian Uhle, Michael Kratschmer, Bernhard Neugebauer, Michael Meier, Stephan Schreiner
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Publication number: 20170366830Abstract: Audio video synchronization and alignment or alignment of audio to some other external clock are rendered more effective or easier by treating fragment grid and frame grid as independent values, but, nevertheless, for each fragment the frame grid is aligned to the respective fragment's beginning. A compression effectiveness lost may be kept low when appropriately selecting the fragment size. On the other hand, the alignment of the frame grid with respect to the fragments' beginnings allows for an easy and fragment-synchronized way of handling the fragments in connection with, for example, parallel audio video streaming, bitrate adaptive streaming or the like.Type: ApplicationFiled: September 6, 2017Publication date: December 21, 2017Inventors: Bernd CZELHAN, Harald FUCHS, Ingo HOFMANN, Herbert THOMA, Stephan SCHREINER
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Patent number: 9830915Abstract: An audio signal decoder for providing a decoded audio signal representation on the basis of an encoded audio signal representation has a decoder preprocessing stage for obtaining a plurality of frequency band signals from the encoded audio signal representation, a clipping estimator, a level shifter, a frequency-to-time-domain converter, and a level shift compensator. The clipping estimator analyzes the encoded audio signal representation and/or side information relative to a gain of the frequency band signals in order to determine a current level shift factor. The level shifter shifts levels of the frequency band signals according to the level shift factor. The frequency-to-time-domain converter converts the level shifted frequency band signals into a time-domain representation. The level shift compensator acts on the time-domain representation for at least partly compensating a corresponding level shift and for obtaining a substantially compensated time-domain representation.Type: GrantFiled: July 9, 2015Date of Patent: November 28, 2017Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Stephan Schreiner, Arne Borsum, Matthias Neusinger, Manuel Jander, Markus Lohwasser, Bernhard Neugebauer
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Publication number: 20170249946Abstract: An apparatus for downmixing three or more audio input channels to obtain two or more audio output channels is provided. The apparatus includes a receiving interface for receiving the three or more audio input channels and for receiving side information. Moreover, the apparatus includes a downmixer for downmixing the three or more audio input channels depending on the side information to obtain the two or more audio output channels. The number of the audio output channels is smaller than the number of the audio input channels. The side information indicates a characteristic of at least one of the three or more audio input channels, or a characteristic of one or more sound waves recorded within the one or more audio input channels, or a characteristic of one or more sound sources which emitted one or more sound waves recorded within the one or more audio input channels.Type: ApplicationFiled: May 15, 2017Publication date: August 31, 2017Inventors: Arne BORSUM, Stephan SCHREINER, Harald FUCHS, Michael KRATZ, Bernhard GRILL, Sebastian SCHARRER
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Publication number: 20170223429Abstract: Audio data processor, having: a receiver interface for receiving encoded audio data and metadata related to the encoded audio data; a metadata parser for parsing the metadata to determine an audio data manipulation possibility; an interaction interface for receiving an interaction input and for generating, from the interaction input, interaction control data related to the audio data manipulation possibility; and a data stream generator for obtaining the interaction control data and the encoded audio data and the metadata and for generating an output data stream, the output data stream having the encoded audio data, at least a portion of the metadata, and the interaction control data.Type: ApplicationFiled: November 21, 2016Publication date: August 3, 2017Inventors: Stephan SCHREINER, Simone NEUKAM, Harald FUCHS, Jan PLOGSTIES, Stefan DOEHLA
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Patent number: 9653084Abstract: An apparatus for downmixing three or more audio input channels to obtain two or more audio output channels is provided. The apparatus includes a receiving interface for receiving the three or more audio input channels and for receiving side information. Moreover, the apparatus includes a downmixer for downmixing the three or more audio input channels depending on the side information to obtain the two or more audio output channels. The number of the audio output channels is smaller than the number of the audio input channels. The side information indicates a characteristic of at least one of the three or more audio input channels, or a characteristic of one or more sound waves recorded within the one or more audio input channels, or a characteristic of one or more sound sources which emitted one or more sound waves recorded within the one or more audio input channels.Type: GrantFiled: March 10, 2015Date of Patent: May 16, 2017Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Arne Borsum, Stephan Schreiner, Harald Fuchs, Michael Kratz, Bernhard Grill, Sebastian Scharrer
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Publication number: 20170011749Abstract: An audio encoder device includes an audio encoder configured for producing an encoded audio bitstream from an audio signal having consecutive audio frames; a dynamic range control encoder configured for producing an encoded dynamic range control bitstream from an dynamic range control sequence corresponding to the audio signal and having consecutive dynamic range control frames, wherein each dynamic range control frame of the dynamic range control frames has one or more nodes, wherein each node of the one or more nodes has gain information for the audio signal and time information indicating to which point in time the gain information corresponds.Type: ApplicationFiled: September 22, 2016Publication date: January 12, 2017Inventors: Fabian KUECH, Christian UHLE, Michael KRATSCHMER, Bernhard NEUGEBAUER, Michael MEIER, Stephan SCHREINER
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Publication number: 20160019898Abstract: An audio signal decoder for providing a decoded audio signal representation on the basis of an encoded audio signal representation has a decoder preprocessing stage for obtaining a plurality of frequency band signals from the encoded audio signal representation, a clipping estimator, a level shifter, a frequency-to-time-domain converter, and a level shift compensator. The clipping estimator analyzes the encoded audio signal representation and/or side information relative to a gain of the frequency band signals in order to determine a current level shift factor. The level shifter shifts levels of the frequency band signals according to the level shift factor. The frequency-to-time-domain converter converts the level shifted frequency band signals into a time-domain representation. The level shift compensator acts on the time-domain representation for at least partly compensating a corresponding level shift and for obtaining a substantially compensated time-domain representation.Type: ApplicationFiled: July 9, 2015Publication date: January 21, 2016Inventors: Stephan Schreiner, Arne Borsum, Matthias Neusinger, Manuel Jander, Markus Lohwasser, Bernhard Neugebauer
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Publication number: 20150199973Abstract: An apparatus for downmixing three or more audio input channels to obtain two or more audio output channels is provided. The apparatus includes a receiving interface for receiving the three or more audio input channels and for receiving side information. Moreover, the apparatus includes a downmixer for downmixing the three or more audio input channels depending on the side information to obtain the two or more audio output channels. The number of the audio output channels is smaller than the number of the audio input channels. The side information indicates a characteristic of at least one of the three or more audio input channels, or a characteristic of one or more sound waves recorded within the one or more audio input channels, or a characteristic of one or more sound sources which emitted one or more sound waves recorded within the one or more audio input channels.Type: ApplicationFiled: March 10, 2015Publication date: July 16, 2015Inventors: Arne BORSUM, Stephan SCHREINER, Harald FUCHS, Michael KRATZ, Bernhard GRILL, Sebastian SCHARRER
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Patent number: 8824688Abstract: An apparatus for generating at least one audio output signal representing a superposition of at least two different audio objects comprises a processor for processing an audio input signal to provide an object representation of the audio input signal, where this object representation can be generated by a parametrically guided approximation of original objects using an object downmix signal. An object manipulator individually manipulates objects using audio object based metadata referring to the individual audio objects to obtain manipulated audio objects. The manipulated audio objects are mixed using an object mixer for finally obtaining an audio output signal having one or several channel signals depending on a specific rendering setup.Type: GrantFiled: August 15, 2012Date of Patent: September 2, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Stephan Schreiner, Wolfgang Fiesel, Matthias Neusinger, Oliver Hellmuth, Ralph Sperschneider
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Publication number: 20120308049Abstract: An apparatus for generating at least one audio output signal representing a superposition of at least two different audio objects comprises a processor for processing an audio input signal to provide an object representation of the audio input signal, where this object representation can be generated by a parametrically guided approximation of original objects using an object downmix signal. An object manipulator individually manipulates objects using audio object based metadata referring to the individual audio objects to obtain manipulated audio objects. The manipulated audio objects are mixed using an object mixer for finally obtaining an audio output signal having one or several channel signals depending on a specific rendering setup.Type: ApplicationFiled: August 15, 2012Publication date: December 6, 2012Applicant: Fraunhofer-Gesellschaft zur Foerderung der angew angewandten Forschung e.V.Inventors: Stephan SCHREINER, Wolfgang FIESEL, Matthias NEUSINGER, Oliver HELLMUTH, Ralph SPERSCHNEIDER
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Patent number: 8315396Abstract: An apparatus for generating at least one audio output signal representing a superposition of at least two different audio objects comprises a processor for processing an audio input signal to provide an object representation of the audio input signal, where this object representation can be generated by a parametrically guided approximation of original objects using an object downmix signal. An object manipulator individually manipulates objects using audio object based metadata referring to the individual audio objects to obtain manipulated audio objects. The manipulated audio objects are mixed using an object mixer for finally obtaining an audio output signal having one or several channel signals depending on a specific rendering setup.Type: GrantFiled: October 9, 2008Date of Patent: November 20, 2012Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.Inventors: Stephan Schreiner, Wolfgang Fiesel, Matthias Neusinger, Oliver Hellmuth, Ralph Sperschneider
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Publication number: 20100014692Abstract: An apparatus for generating at least one audio output signal representing a superposition of at least two different audio objects comprises a processor for processing an audio input signal to provide an object representation of the audio input signal, where this object representation can be generated by a parametrically guided approximation of original objects using an object downmix signal. An object manipulator individually manipulates objects using audio object based metadata referring to the individual audio objects to obtain manipulated audio objects. The manipulated audio objects are mixed using an object mixer for finally obtaining an audio output signal having one or several channel signals depending on a specific rendering setup.Type: ApplicationFiled: October 9, 2008Publication date: January 21, 2010Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Stephan SCHREINER, Wolfgang FIESEL, Matthias NEUSINGER, Oliver HELLMUTH, Ralph SPERSCHNEIDER
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Patent number: 5564733Abstract: Motor vehicle instrument panel including a stiffening panel defining an instrument panel shape. The stiffening panel includes an airbag cover section and a hinge connection section which connects the airbag cover section to adjacent stiffening panel sections. A reinforcement mat is connected to a side of the stiffening panel which faces away from a vehicle passenger space bounded by the instrument panel when in an in-use position in a vehicle. The reinforcement mat includes a plurality of openings, and the reinforcement mat and stiffening panel are connected together by pressing of material of the stiffening panel into the openings of the reinforcement mat thereby providing an intimate connection of the reinforcement mat and stiffening panel without requiring additional fastening material.Type: GrantFiled: October 17, 1995Date of Patent: October 15, 1996Assignee: Mercedes-Benz AGInventors: Santiago Duenas, Stephan Schreiner, Harald Koppenstein, Helmut Wagner, Jorg Henkel
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Patent number: 5440310Abstract: A bandwidth synthesized radar level measurement system includes a transceiver for generating a transmitted signal and a sweep signal. An antenna coupled to the transceiver sends the transmitted signal toward a level corresponding to a product surface and receives a reflected signal therefrom. A sweep generator generates a chirp slope signal in response to the reflected signal. An intermediate frequency (IF) processor receives the chirp slope signal and a difference signal mixed from the transmitted and reflected signals. The IF processor produces an amplified IF signal and a sweep control receives the amplified IF signal to adaptively control the sweep generator and to produce an output signal including a distance from the antenna to the level corresponding to the product surface.Type: GrantFiled: February 14, 1994Date of Patent: August 8, 1995Assignee: Motorola, Inc.Inventor: Stephan Schreiner
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Patent number: 5427409Abstract: A cover panel is provided for an airbag which is folded into a housing and, in a cover position, covers the housing opening. The panel is connected to a surrounding surface via at least one web. An unfolding opening is cleared as a result of the web breaking off during unfolding of the airbag. Each web projects in a tongue shape into the surrounding surface. A predetermined break point of the web is provided outside the opening edge of the unfolding opening in the region of the surrounding surface.Type: GrantFiled: April 6, 1994Date of Patent: June 27, 1995Assignee: Mercedes-Benz AGInventors: Wolfgang Henseler, Stephan Schreiner
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Patent number: 5335937Abstract: Impact protection devices, arranged in steering wheels or dashboards of motor vehicles, for vehicle occupants are provided with covers which open in the event of an accident in order to release an inflating air bag of the protection device. The cover, which consists of at least one cover flap, is injection molded onto a carrier part by a tough elastic plastic. The plastic surround has along an edge, intended as pivot axis, of the cover flap a cross-sectional tapering which serves as a hinge. At the other edges, the plastic surround is constructed towards the corresponding edges of the carrier part as a groove which, in the event of pressure on the cover flap in the opening direction, easily releases the carrier part edge.Type: GrantFiled: September 3, 1993Date of Patent: August 9, 1994Assignee: Mercedes-Benz AGInventors: Hans-Wilhelm Uphues, Zivojin Petkovic, Wolfgang Henseler, Manfred Muller, Stephan Schreiner, Thomas Witkovsky, Thomas Fischer, Rolf Schumacher, Bruno Moltgen