Patents by Inventor Andreas Walther
Andreas Walther 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: 9326085Abstract: A transient detector is provided for generating an ambience signal suitable for being emitted via loudspeakers for which there is no special loudspeaker signal to detect a transient period. A synthesis signal generator produces a synthesis signal which fulfills the transient condition on the one hand and the continuity condition for the synthesis signal on the other hand. A signal substituter will then substitute a portion of the examination signal by the synthesis signal to obtain an ambience signal for the surround channels.Type: GrantFiled: April 9, 2012Date of Patent: April 26, 2016Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Juergen Herre, Stefan Geyersberger, Oliver Hellmuth, Andreas Walther, Christiaan Janssen
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Patent number: 9241218Abstract: An apparatus for decomposing a signal having an number of at least three channels includes an analyzer for analyzing a similarity between two channels of an analysis signal related to the signal having at least two analysis channels, wherein the analyzer is configured for using a pre-calculated frequency dependent similarity curve as a reference curve to determine the analysis result. The signal processor processes the analysis signal or a signal derived from the analysis signal or a signal, from which the analysis signal is derived using the analysis result to obtain a decomposed signal.Type: GrantFiled: June 6, 2013Date of Patent: January 19, 2016Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventor: Andreas Walther
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Apparatus, method and computer program for manipulating an audio signal comprising a transient event
Patent number: 9230557Abstract: An apparatus for manipulating an audio signal comprising a transient event has a transient signal replacer configured to replace a transient signal portion, comprising the transient event of the audio signal, with a replacement signal portion adapted to signal energy characteristics of one or more transient signal portions of the audio signal, or to signal energy characteristics of the transient signal portion, to obtain a transient-reduced audio signal. The apparatus also has a signal processor configured to process the transient-reduced audio signal to obtain a processed version of the transient-reduced audio signal. The apparatus also has a transient-signal-re-inserter configured to combine the processed version of the transient-reduced audio signal with a transient signal representing, in an original or processed form, a transient content of the transient signal portion.Type: GrantFiled: July 27, 2011Date of Patent: January 5, 2016Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Frederik Nagel, Andreas Walther, Guillaume Fuchs, Jeremie Lecomte, Harald Popp, Tilo Wik -
Publication number: 20150003625Abstract: An apparatus for improving a perceived quality of sound reproduction of an audio output signal is provided. The apparatus has an active noise cancellation unit for generating a noise cancellation signal based on an environmental audio signal, wherein the environmental audio signal has noise signal portions, the noise signal portions resulting from recording environmental noise. Moreover, the apparatus has a residual noise characteristics estimator for determining a residual noise characteristic depending on the environmental noise and the noise cancellation signal. Furthermore, the apparatus has a perceptual noise compensation unit for generating a noise-compensated signal based on an audio target signal and based on the residual noise characteristic. Moreover, the apparatus has a combiner for combining the noise cancellation signal and the noise-compensated signal to obtain the audio output signal.Type: ApplicationFiled: September 17, 2014Publication date: January 1, 2015Inventors: Christian UHLE, Juergen HERRE, Andreas WALTHER, Felix FLEISCHMANN, Patrick GAMPP
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Publication number: 20140210579Abstract: A magnet assembly, having a disk-shaped magnet, which is made predominantly of metal material and has a through-hole and, by the through-hole, can be placed onto a region of a shaft made of plastic by a press fit. In the region of the magnet placed onto the shaft, the shaft has a diameter that is smaller than the diameter of the through-hole. The shaft has a plurality of radially protruding projections in the region of the magnet placed onto the shaft. The projections are distributed evenly on the circumference of the shaft and, with respect to the longitudinal axis of the shaft, having a radius, the double of which is oversized relative to the diameter of the through-hole before the magnet is placed onto the projections of the shaft.Type: ApplicationFiled: December 21, 2011Publication date: July 31, 2014Inventors: Thorsten Alexander Kern, Andreas Walther
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Patent number: 8781133Abstract: An apparatus for generating a multi-channel audio signal based on an input audio signal comprises a main signal upmixer, a section selector, a section signal upmixer and a combiner. The main signal upmixer is configured to provide a main multi-channel audio signal based on the input audio signal. The section selector is configured to select or not select a section of the input audio signal based on an analysis of the input audio signal. The selected section of the input audio signal, a processed selected section of the input audio signal or a reference signal associated with the selected section of the input audio signal is provided as section signal. The section signal upmixer is configured to provide a section upmix signal based on the section signal, and the combiner is configured to overlay the main multi-channel audio signal and the section upmix signal to obtain the multi-channel audio signal.Type: GrantFiled: June 8, 2011Date of Patent: July 15, 2014Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Andreas Walther, Oliver Hellmuth, Falko Ridderbusch, Christian Stoecklmeier
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Patent number: 8770075Abstract: Parts with high surface finish are removed from tools of a fine blanking press with accuracy and at high speed. The press has high opening and shutting speeds achieved by a direct drive having high acceleration power, a high turning moment, and small construction dimensions. A cross slide is movable transverse to a working direction of tool parts and is fixed at a frame of the direct drive. The direct drive includes a drive shaft which changes turning direction based on the stroke of a ram that is pivotally connected to the cross slide via an arm, a bracket, and a rapid-action coupling. Rotating motion is converted into a linear motion, which reverses between a rear stop position and a front stop position of the cross slide in a working area.Type: GrantFiled: December 3, 2010Date of Patent: July 8, 2014Assignee: Feintool Industrial Property AGInventors: Andreas Walther, Herbert Fuchs, Simon Benjamin Walther, Jürg Ochsenbein
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Publication number: 20140180629Abstract: A method for determining the geometry and/or the localisation of an object comprising the steps of: sending one or more signals by using one transmitter; receiving by one or more receivers the transmitted signals and the echoes of the transmitted signals as reflected by one or more reflective surfaces building by a computing module a first Euclidean Distance Matrix (EDM) comprising the mutual positions of the receivers; adding to the EDM matrix a new row and a new column, the new row and a new column comprising time of arrivals of said echoes and computing its rank or distance to an EDM matrix determining the geometry and/or the position of the object based on said rank or distance.Type: ApplicationFiled: March 14, 2013Publication date: June 26, 2014Applicant: Ecole Polytechnique Federale de Lausanne EPFLInventors: Ivan DOKMANIC, Reza Parhizkar, Andreas Walther, Martin Vetterli, Yue Lu
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Publication number: 20140064527Abstract: An apparatus for generating an output signal having at least two output channels from an input signal having at least two input channels, has an ambient/direct decomposer, an ambient modification unit and a combination unit. The ambient/direct decomposer is adapted to decompose at least two input channels of the input signal such that each one of the at least two input channels is decomposed into a signal of a first signal group and into a signal of a second signal group. The ambient modification unit is adapted to modify a signal of the ambient signal group or a signal derived from a signal of the ambient signal group to obtain a modified signal as a first output channel. The combination unit is adapted to combine a signal of the ambient signal group or a signal derived from a signal of the ambient signal group and a signal of the direct signal group or a signal derived from a signal of the direct signal group as a second output channel.Type: ApplicationFiled: November 11, 2013Publication date: March 6, 2014Inventors: Andreas WALTHER, Andreas SILZLE, Oliver HELLMUTH, Berhnhard GRILL, Harald POPP
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Publication number: 20140058077Abstract: Method for fabricating fiber and film products and composites includes: introducing an aqueous gel of nanofibrillar cellulose into a volume of organic extraction agent miscible with water so that the aqueous gel is kept as a separate phase and forms one or several discrete physical entities containing the nanofibrillar cellulose within the phase; changing water with the organic extraction agent in said one or several discrete physical entities of nanofibrillar cellulose; and drying the nanofibrillar cellulose by removing the organic extraction agent from the one or several discrete physical entities of nanofibrillar cellulose. In the method the aqueous gel of nanofibrillar cellulose is introduced into the volume of organic extraction agent in the form of one or several elongated elements which form a fiber-like or ribbon-like or film-like product after drying.Type: ApplicationFiled: February 8, 2012Publication date: February 27, 2014Applicant: UPM-KYMMENE CORPORATIONInventors: Antti Laukkanen, Jan-Erik Teirfolk, Markus Samuli Nuopponen, Andreas Walther, Olli Ikkala
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Patent number: 8613436Abstract: In a cover feeding device (1) for feeding covers (13, 13.1, 13.2, 13.3) separated from a magazine (3, 3?) to book blocks (14.1, 14.2, 14.3) that are transported while being clamped in book block grippers (2), it is proposed that the magazine (3, 3?) features at least a first lateral stop (6.1) that is arranged such that it can be fixed transverse to the withdrawal direction (12) and against which different covers (13, 13.1, 13.2, 13.3) intended, in particular, for book blocks (14.1, 14.2, 14.3) of different thickness can be jointly placed, and that at least the magazine (3, 3?) can be adjusted transverse to the withdrawal direction (12) such that an edge (17) of the spine region of the respective cover to be separated is withdrawn essentially in alignment with the rigid gripping jaw (2 a).Type: GrantFiled: November 17, 2011Date of Patent: December 24, 2013Assignee: Kolbus GmbH & Co. KGInventors: Yahya Tas, Jürgen Garlichs, Andreas Walther
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Patent number: 8613581Abstract: In a machine (1) for manufacturing perfect-bound brochures (2) that includes a book block conveying device (10) with an endless conveying means (11), a plurality of clamps (14) that are arranged on the conveying means at a fixed pitch spacing (T) and serve for clamping book blocks (3, 3.1 . . . 3.8), and of at least one processing station (25, 18, 19, 20, 21, 22, 30) that can be adjusted in a motor-driven fashion, the cycle time (t0) referred to the conveyance of the clamps (14) by the pitch spacing (T) defined in the at least one processing station is divided into an adjusting segment (tV1, tV2) for resetting and/or adjusting the at least one processing station (25, 18, 19, 20, 21, 22, 30) in accordance with changing printed product characteristics and a processing segment (tB1, tB2) for processing the book blocks (3, 3.1 . . . 3.8) and/or covers (4, 4.1 . . . 4.4).Type: GrantFiled: April 12, 2011Date of Patent: December 24, 2013Assignee: Kolbus GmbH & Co. KGInventors: Kai Winkelmann, Jürgen Garlichs, Andreas Walther
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Patent number: 8577482Abstract: A transient detector is provided for generating an ambience signal suitable for being emitted via loudspeakers for which there is no special loudspeaker signal to detect a transient period. A synthesis signal generator produces a synthesis signal which fulfills the transient condition on the one hand and the continuity condition for the synthesis signal on the other hand. A signal substituter will then substitute a portion of the examination signal by the synthesis signal to obtain an ambience signal for the surround channels.Type: GrantFiled: April 12, 2007Date of Patent: November 5, 2013Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.VInventors: Juergen Herre, Stefan Geyersberger, Oliver Hellmuth, Andreas Walther, Christiaan Janssen
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Publication number: 20130272526Abstract: An apparatus for decomposing an input signal having a number of at least three input channels includes a downmixer for downmixing the input signal to obtain a downmixed signal having a smaller number of channels. Furthermore, an analyzer for analyzing the downmixed signal to derive an analysis result is provided, and the analysis result is forwarded to a signal processor for processing the input signal or a signal derived from the input signal to obtain the decomposed signal.Type: ApplicationFiled: June 6, 2013Publication date: October 17, 2013Inventor: Andreas WALTHER
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Publication number: 20130268281Abstract: An apparatus for decomposing a signal having an number of at least three channels includes an analyzer for analyzing a similarity between two channels of an analysis signal related to the signal having at least two analysis channels, wherein the analyzer is configured for using a pre-calculated frequency dependent similarity curve as a reference curve to determine the analysis result. The signal processor processes the analysis signal or a signal derived from the analysis signal or a signal, from which the analysis signal is derived using the analysis result to obtain a decomposed signal.Type: ApplicationFiled: June 6, 2013Publication date: October 10, 2013Inventor: Andreas WALTHER
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Patent number: 8469647Abstract: A book binding machine for processing book blocks (3) features a transport system (2) with a plurality of book block clamps (40) for receiving the book blocks (3) that can be continuously moved along a closed circulation path and are coupled to a traction mechanism (63), wherein the traction mechanism (63) revolves around a driving wheel (55) and a deflection wheel and is tensioned by means of a tensioning device. Processing stations (70, 80) are arranged in the region of straight sections of the circulation path. The driving wheel (55) is driven by a gearless, rotative electric direct drive (50), wherein a first rotating component (53) of the rotative direct drive (50) is mounted or realized directly on the driving wheel (55).Type: GrantFiled: January 22, 2010Date of Patent: June 25, 2013Assignee: Kolbus GmbH & Co. KGInventors: Jürgen Garlichs, Christian Heiner Müller, Andreas Walther
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Publication number: 20130065026Abstract: A method for preparing composite structure self-assemblies. Structural segments are formed, which connect to each other through binder material. The structural segments are combined with the binder material to produce structural segments having the binder adhered thereto. The structural segments are combined to a form a composite structure through self-assembly, where the structural segments join to each other through said binder.Type: ApplicationFiled: March 3, 2011Publication date: March 14, 2013Applicant: UPM-KYMMENE CORPORATIONInventors: Andreas Walther, Antti Laukkanen, Olli Ikkala
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Patent number: 8346565Abstract: An apparatus for generating an ambient signal from an audio signal includes a compressor for lossy compression of a representation of the audio signal so as to obtain a compressed representation of the audio signal describing a compressed audio signal. The apparatus for generating the ambient signal further includes a calculator for calculating a difference between the compressed representation of the audio signal and the representation of the audio signal so as to obtain a discrimination representation. The apparatus further includes a provider for providing the ambient signal using the discrimination representation. An apparatus for deriving a multi-channel audio signal from an audio signal includes an apparatus for generating an ambient signal from an audio signal, an apparatus for providing the audio signal as a front-loudspeaker signal and an apparatus for providing the ambient signal as a back-loudspeaker signal.Type: GrantFiled: October 23, 2007Date of Patent: January 1, 2013Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.Inventors: Christian Uhle, Juergen Herre, Andreas Walther, Oliver Hellmuth, Christiaan Janssen
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Publication number: 20120195434Abstract: A transient detector is provided for generating an ambience signal suitable for being emitted via loudspeakers for which there is no special loudspeaker signal to detect a transient period. A synthesis signal generator produces a synthesis signal which fulfils the transient condition on the one hand and the continuity condition for the synthesis signal on the other hand. A signal substituter will then substitute a portion of the examination signal by the synthesis signal to obtain an ambience signal for the surround channels.Type: ApplicationFiled: April 9, 2012Publication date: August 2, 2012Inventors: Juergen HERRE, Stefan GEYERSBERGER, Oliver HELLMUTH, Andreas WALTHER, Christiaan JANSSEN
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Publication number: 20120128447Abstract: In a cover feeding device (1) for feeding covers (13, 13.1, 13.2, 13.3) separated from a magazine (3, 3?) to book blocks (14.1, 14.2, 14.3) that are transported while being clamped in book block grippers (2), it is proposed that the magazine (3, 3?) features at least a first lateral stop (6.1) that is arranged such that it can be fixed transverse to the withdrawal direction (12) and against which different covers (13, 13.1, 13.2, 13.3) intended, in particular, for book blocks (14.1, 14.2, 14.3) of different thickness can be jointly placed, and that at least the magazine (3, 3?) can be adjusted transverse to the withdrawal direction (12) such that an edge (17) of the spine region of the respective cover to be separated is withdrawn essentially in alignment with the rigid gripping jaw (2 a).Type: ApplicationFiled: November 17, 2011Publication date: May 24, 2012Inventors: Yahya Tas, Jürgen Garlichs, Andreas Walther