Patents by Inventor Frank Klefenz
Frank Klefenz 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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Patent number: 10744322Abstract: A cochlear implant for processing signal parameters which are adapted for controlling the cochlear implant, which are based on the audio signal and which enable generating a representation of the audio signal by the cochlear implant includes a receive interface which is implemented to receive the signal parameters and a nerve stimulator for processing the signal parameters to generate nerve cell stimulation signals based on the signal parameters. A device for generating a control signal for a cochlear implant on the basis of an audio signal includes a cochlear parameter extractor for analyzing the audio signal which is implemented to generate signal parameters as input information for the cochlear implant based on an analysis of the audio signal using a human hearing simulation model, and a transmit interface for transmitting the signal parameters to the cochlear implant.Type: GrantFiled: September 5, 2006Date of Patent: August 18, 2020Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Bernd Edler, Andreas Buechner, Waldo Nogueira, Frank Klefenz
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Patent number: 9704093Abstract: Embodiments of the present invention provide a memristor having a first electrode, a second electrode and a memristive layer arranged between the first electrode and the second electrode. Thereby, the memristor is adapted to obtain an asymmetrical current density distribution in the memristive layer.Type: GrantFiled: July 14, 2015Date of Patent: July 11, 2017Assignees: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Technische Universitaet IlmenauInventors: Frank Klefenz, Peter Husar, Adam Williamson, Lars Schumann, Lars Hiller, Ingo Hoerselmann, Andreas Schober
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Patent number: 9640870Abstract: The invention relates to an array antenna (1), comprising a first plate (2), which has means for distributing an electromagnetic signal to be emitted by the array antenna (1), a second plate (3), which has first openings (7) for conducting the electromagnetic signal to be emitted therethrough, and a third plate (4), which has means (12) used to emit the electromagnetic signal. The second plate (3) is arranged between the first plate and the third plate (2, 4) and is operatively connected to same. The second plate (3) has substantially plane-parallel, smooth lateral surfaces (5, 6), in which the first openings (7) are arranged.Type: GrantFiled: February 7, 2012Date of Patent: May 2, 2017Assignee: Huber+Suhner AGInventors: Frank Klefenz, Ulf Huegel
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Publication number: 20160019453Abstract: Embodiments of the present invention provide a memristor having a first electrode, a second electrode and a memristive layer arranged between the first electrode and the second electrode. Thereby, the memristor is adapted to obtain an asymmetrical current density distribution in the memristive layer.Type: ApplicationFiled: July 14, 2015Publication date: January 21, 2016Inventors: Frank KLEFENZ, Peter HUSAR, Adam WILLIAMSON, Lars SCHUMANN, Lars HILLER, Ingo HOERSELMANN, Andreas SCHOBER
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Patent number: 8761893Abstract: A device for analyzing an audio signal to obtain an analysis representation of the audio signal includes a converter for converting the audio signal into a representation representing a neurotransmitter vesicle occurrence in clefts between a plurality of nerve fibers and inner auditory cells of an ear model, and a calculator for calculating a neural activity pattern over time on the plurality of nerve fibers, which results based on the neurotransmitter vesicle occurrence, wherein the neural activity pattern is an analysis representation of the audio signal. The inventive device thus generates an especially suitable analysis representation of an audio signal in which masking effects occurring in the generation of action potentials on nerve fibers are considered. The inventive analysis representation is also suitable for an examination of the audio content and also for controlling cochlea implants.Type: GrantFiled: May 10, 2006Date of Patent: June 24, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Frank Klefenz, András Kátai, Gero Szepannek, Tamás Harczos
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Patent number: 8649529Abstract: An apparatus for localizing a sound source includes at least two rotatably arranged microphones, a drive formed to set the microphones into rotation, and an evaluator. The evaluator is formed to receive microphone signals of the at least two microphones, while the at least two microphones are moving, and to obtain information on a direction from which sound arrives from the sound source or information on a position of the sound source, using the microphone signals obtained during the movement of the microphones.Type: GrantFiled: December 17, 2010Date of Patent: February 11, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Frank Klefenz, Thomas Sporer
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Publication number: 20130321229Abstract: The invention relates to an array antenna (1), comprising a first plate (2), which has means for distributing an electromagnetic signal to be emitted by the array antenna (1), a second plate (3), which has first openings (7) for conducting the electromagnetic signal to be emitted therethrough, and a third plate (4), which has means (12) used to emit the electromagnetic signal. The second plate (3) is arranged between the first plate and the third plate (2, 4) and is operatively connected to same. The second plate (3) has substantially plane-parallel, smooth lateral surfaces (5, 6), in which the first openings (7) are arranged.Type: ApplicationFiled: February 7, 2012Publication date: December 5, 2013Applicant: Huber+Suhner AGInventors: Frank Klefenz, Ulf Huegel
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Patent number: 8570383Abstract: An apparatus for recognizing gestures in a picture includes a Hough transformer configured to identify elements in the picture or in a pre-processed version of the picture as identified gesture elements and to obtain information about the identified gesture elements. The apparatus further includes a gesture description creator configured to obtain a gesture description while using the information about the identified gesture elements. Moreover, the apparatus includes a gesture classifier configured to compare the gesture description to a plurality of comparative gesture descriptions having gesture codes associated with them. The gesture classifier is configured to provide, as the result of the comparison, a gesture code of a recognized gesture.Type: GrantFiled: April 22, 2011Date of Patent: October 29, 2013Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschun e.V.Inventors: Frank Klefenz, Valiantsin Hardzeyeu
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Patent number: 8538157Abstract: A device for detecting characters in an image includes a Hough transformer implemented to identify, as identified elements of writing, circular arcs or elliptical arcs in the image or in a preprocessed version of the image. The device further includes a character description generator implemented to obtain, on the basis of the identified circular arcs or elliptical arcs, a character description which describes locations of the identified circular arcs or elliptical arcs. In addition, the device includes a database comparator implemented to compare the character description with a plurality of comparative character descriptions which have character codes associated with them, so as to provide, as a result of the comparison, a character code of a detected character.Type: GrantFiled: December 18, 2007Date of Patent: September 17, 2013Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.Inventor: Frank Klefenz
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Patent number: 8189834Abstract: A device for generating a filtered activity pattern based on a first activity pattern at an auditory model of a first ear and a second activity pattern at an auditory model of a second ear includes an identifier for identifying a first trajectory in the first activity pattern and a second trajectory in the second activity pattern which are associated with the same sound event. The device further includes a determiner for determining whether the two trajectories are associated with a sound event of a useful sound source. The device further includes a filter for filtering the first activity pattern or the second activity pattern based on a result of determining whether a trajectory is associated with a sound event of the useful sound source.Type: GrantFiled: June 26, 2007Date of Patent: May 29, 2012Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.Inventor: Frank Klefenz
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Patent number: 8170340Abstract: A device for identifying a traffic sign in an image includes a Hough transformer implemented to identify a plurality of line sections running in different directions through the image in the image or in an edge image derived from same. The device further includes a shape detector implemented to detect a predefined shape in the image or in the edge image derived from same based on the identified line sections. The device apart from that includes a pattern identifier implemented to select an image section corresponding to the detected predefined shape based on the detected predefined shape and to identify a traffic sign based on the selected image section.Type: GrantFiled: December 18, 2007Date of Patent: May 1, 2012Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Frank Klefenz
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Publication number: 20110234840Abstract: An apparatus for recognizing gestures in a picture includes a Hough transformer configured to identify elements in the picture or in a pre-processed version of the picture as identified gesture elements and to obtain information about the identified gesture elements. The apparatus further includes a gesture description creator configured to obtain a gesture description while using the information about the identified gesture elements. Moreover, the apparatus includes a gesture classifier configured to compare the gesture description to a plurality of comparative gesture descriptions having gesture codes associated with them. The gesture classifier is configured to provide, as the result of the comparison, a gesture code of a recognized gesture.Type: ApplicationFiled: April 22, 2011Publication date: September 29, 2011Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Frank KLEFENZ, Valiantsin HARDZEYEU
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Patent number: 7996212Abstract: A hardware device for analyzing an audio signal comprises a calculator for calculating a neural activity pattern over time resulting at nerve fibers of an ear model based on the audio signal and a processor for processing the neural activity pattern to obtain a sequence of time information as an analysis representation describing a temporal position of consecutive trajectories, wherein a trajectory includes activity impulses on different nerve fibers based on the same event in the audio signal. A two-dimensional representation of the neural activity pattern is gradually distorted over time, and it is recognized when an approximately straight line is contained in the distorted two-dimensional representation of the neural activity pattern over time. Accordingly, a time information belonging to the trajectory is provided.Type: GrantFiled: June 29, 2005Date of Patent: August 9, 2011Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Frank Klefenz
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Patent number: 7948493Abstract: An apparatus for determining information about shape and location of an ellipse involves determining two coordinates of a first ellipse point representing a point of the ellipse located furthest in the first direction, and determining two coordinates of a second ellipse point representing a point of the ellipse located furthest in a direction opposite to the first direction. The apparatus determines parameters of bent line segments approximating the ellipse at ellipse points or in a surrounding of ellipse points, and determines the coordinates of ellipse points based on the parameters of the bent line segments. The apparatus involves calculating ellipse parameters of the ellipse based on the two coordinates of the first ellipse point and the two coordinates of the second ellipse point. The apparatus enables real-time-capable determination of parameters of an ellipse included in an image to be analyzed.Type: GrantFiled: April 3, 2007Date of Patent: May 24, 2011Assignees: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Technische Universitaet e.V.Inventors: Frank Klefenz, Johannes Katzmann, Christian Holland-Nell, Peter Husar
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Publication number: 20110110531Abstract: An apparatus for localizing a sound source includes at least two rotatably arranged microphones, a drive formed to set the microphones into rotation, and an evaluator. The evaluator is formed to receive microphone signals of the at least two microphones, while the at least two microphones are moving, and to obtain information on a direction from which sound arrives from the sound source or information on a position of the sound source, using the microphone signals obtained during the movement of the microphones.Type: ApplicationFiled: December 17, 2010Publication date: May 12, 2011Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Frank KLEFENZ, Thomas SPORER
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Publication number: 20100329513Abstract: An apparatus for determining a position on the basis of a camera image from a camera includes a Hough transformer, a positional description establisher and a database comparator. The Hough transformer is formed to identify circular arcs or elliptical arcs in the camera image or in a preprocessed version of the camera image derived therefrom, and to identify a plurality of straight stretches passing in various directions through the camera image or through the preprocessed version. The positional description establisher is formed to obtain a positional description describing the identified circular arcs or elliptical arcs and the identified straight stretches by parameters, on the basis of the identified circular arcs or elliptical arcs and on the identified straight stretches. The database comparator further is formed to compare the positional description with a plurality of comparative positional descriptions and to obtain information on a position as a result of the comparison.Type: ApplicationFiled: December 27, 2007Publication date: December 30, 2010Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Frank Klefenz
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Publication number: 20100232631Abstract: A device for generating a filtered activity pattern based on a first activity pattern at an auditory model of a first ear and a second activity pattern at an auditory model of a second ear includes an identifier for identifying a first trajectory in the first activity pattern and a second trajectory in the second activity pattern which are associated with the same sound event. The device further includes a determiner for determining whether the two trajectories are associated with a sound event of a useful sound source. The device further includes a filter for filtering the first activity pattern or the second activity pattern based on a result of determining whether a trajectory is associated with a sound event of the useful sound source.Type: ApplicationFiled: June 26, 2007Publication date: September 16, 2010Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Frank Klefenz
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Patent number: 7797051Abstract: A method of generating a control signal for a cochlear implant based on an audio signal includes calculating first information on an activity pattern over time at a plurality of inner hair cells of an auditory model, which results based on the audio signal, and filtering out activity events described by the first information, based on a recognition of a characteristic pattern in the activity pattern, whereby cleared information is obtained. The cleared information is further used as a control signal for the cochlear implant, or the control signal for the cochlear implant is derived from the cleared information.Type: GrantFiled: February 1, 2007Date of Patent: September 14, 2010Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Frank Klefenz
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Publication number: 20100067805Abstract: A device for identifying a traffic sign in an image includes a Hough transformer implemented to identify a plurality of line sections running in different directions through the image in the image or in an edge image derived from same. The device further includes a shape detector implemented to detect a predefined shape in the image or in the edge image derived from same based on the identified line sections. The device apart from that includes a pattern identifier implemented to select an image section corresponding to the detected predefined shape based on the detected predefined shape and to identify a traffic sign based on the selected image section.Type: ApplicationFiled: December 18, 2007Publication date: March 18, 2010Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Frank Klefenz
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Publication number: 20100054603Abstract: A device for detecting characters in an image includes a Hough transformer implemented to identify, as identified elements of writing, circular arcs or elliptical arcs in the image or in a preprocessed version of the image. The device further includes a character description generator implemented to obtain, on the basis of the identified circular arcs or elliptical arcs, a character description which describes locations of the identified circular arcs or elliptical arcs. In addition, the device includes a database comparator implemented to compare the character description with a plurality of comparative character descriptions which have character codes associated with them, so as to provide, as a result of the comparison, a character code of a detected character.Type: ApplicationFiled: December 18, 2007Publication date: March 4, 2010Applicant: Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V.Inventor: Frank Klefenz