Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Technische Universitaet Ilmenau

Technische Universitaet E.v.

Technische Universitat Ilmenau

C.h.i. Development Management Limited Xxxiv, LLC

Frank Klefenz

Karlheinz Brandenburg

Peter Husar

Bernd Edler

Thomas Sporer

Andreas Schober

András Kátai

Andreas Buechner

Christian Holland-Nell

Matthias Kaufmann

Lars Schumann

Lars Hiller

Ingo Hoerselmann

Johannes Katzmann

Adam Williamson

Gero Szepannek

Waldo Nogueira

Tamás Harczos

Valiantsin Hardzeyeu

Ingo HÖRSELMANN

Andreas Büchner

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.

Cochlear implant, device for generating a control signal for a cochlear implant, device for generating a combination signal and combination signal and corresponding methods

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.

Asymmetrical memristor

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.

Device, method and computer program for analyzing an audio signal

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.

Apparatus, method and computer program for localizing a sound source

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.

Apparatus, method and computer program for recognizing a gesture in a picture, and apparatus, method and computer program for controlling a device

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.

Device, method and computer program for detecting characters in an image

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.

Device and method for generating a filtered activity pattern, source divider, method for generating a debugged audio signal and computer program

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.

Device, method and computer program for identifying a traffic sign in an image

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.

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.

Apparatus, method and computer program for determining information about shape and/or location of an ellipse in a graphical image

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.

Method, device and computer program for generating a control signal for a cochlear implant, based on an audio signal

In a method for generating an identifier for an audio signal including a tone generated by an instrument, a discrete amplitude-time representation of the audio signal is generated at first, wherein the amplitude-time representation, for a plurality of subsequent points in time, comprises a plurality of subsequent amplitude values, wherein a point in time is associated to each amplitude value. Subsequently, an identifier for the audio signal is extracted from the amplitude-time representation. An instrument database is formed from several identifiers for several audio signals including tones of several instruments. By means of a test identifier for an audio signal having been produced by an unknown instrument, the type of the test instrument is determined using the instrument database. A precise instrument identification can be obtained by using the amplitude-time representation of a tone produced by an instrument for identifying a musical instrument.

Method and device for generating an identifier for an audio signal, method and device for building an instrument database and method and device for determining the type of an instrument

In a method for transferring a music signal into a note-based description, a frequency-time representation of the music signal is first generated, the frequency-time representation comprising coordinate tuples, a coordinate tuple including a frequency value and a time value, the time value indicating the time of occurrence of the assigned frequency in the music signal. Thereupon, a fit function will be calculated as a function of the time, the course of which is determined by the coordinate tuples of the frequency-time representation. For time-segmenting the frequency-time representation, at least two adjacent extreme values of the fit function will be determined. On the basis of the determined extreme values, a segmenting will be carried out, a segment being limited by two adjacent extreme values of the fit function, the time length of the segments indicating a time length of a note for the segment. For pitch determination, a pitch for the segment using coordinate tuples in the segment will be determined. For calculating the fit function and determining extreme values of the fit function for segmenting, no requirements are made to the music signal which is to be transferred into a note-based representation. The method is thus also suitable for continuous music signals.

Method for converting a music signal into a note-based description and for referencing a music signal in a data bank

For characterizing an information signal having an amplitude-time waveform with local extreme values, at first the local extreme values of the information signal are determined, wherein a local extreme value is defined by a time instant and an amplitude. Furthermore, area information of valleys or mountains of the information signal in case of a one-dimensional amplitude of the information signal or volume information in case of a two-dimensional amplitude of the information signal of valleys or mountains is ascertained. A valley or mountain is defined by a temporal section of the information signal, wherein the section of the information signal extends from the time instant of a local extreme value to a temporarily adjacent value of the information signal having the same amplitude as the local extreme value. Area or volume information of several mountains or valleys is characteristic for the information signal and permits further characterization of the information signal, build-up of an information signal database, or identification of an information signal on the basis of an existing information signal database. Area or volume information is on the one hand characteristic for the information signal and on the other hand, due to its integral nature, robust against information signal changes in form of overlays or distortions.

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Mannheim, Germany

Frank Klefenz