Patents by Inventor Stefan Seidl
Stefan Seidl 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: 20250125471Abstract: A stackable battery module for a battery system of a battery electric vehicle includes a plurality of battery cells and a battery module housing arranged to frame the plurality of battery cells. A plurality of battery modules interlock to form a battery module stack and laterally encase the battery module stack when several battery modules are stacked. The battery module includes centering elements arranged on the outside surfaces of the battery module housing to secure and center the stacked battery module inside a housing of the battery system. The battery module housing has a laterally framing tongue element and a laterally framing groove element corresponding to the tongue element. The tongue element of one battery module interlocks with the groove element of further battery module when the battery modules are stacked with an additional battery module to form a battery module stack and a coolant channel between the battery modules.Type: ApplicationFiled: October 16, 2024Publication date: April 17, 2025Applicant: Lisa Dräxlmaier GmbHInventors: Michael STECKEL, Johann SCHWIMMBECK, Christian BLASCHKE, Guido HOFER, Manuel HOFER, Alexander HAHN, Stefan SEIDL
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Publication number: 20250088202Abstract: A method for correcting a data block comprises applying a first error correction and error detection in accordance with a first code to a first set of vectors of a data block, wherein the first code makes it possible to detect vectors having a number of errors above a maximum number as erroneous but uncorrectable, but only to correct vectors having a number of errors up to the maximum number, and applying a second error correction and error detection in accordance with a second code to at least some of a second set of vectors, wherein, if error correction of a vector of the second set causes the first error correction and error detection, for a vector of the first set that it detected as erroneous but uncorrectable, indicate fewer errors than the maximum number, error correction of the vector of the second set is revoked.Type: ApplicationFiled: September 12, 2024Publication date: March 13, 2025Inventors: Rainer Göttfert, Berndt Gammel, Martin Schläffer, Stefan Seidl
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Publication number: 20250088205Abstract: A method for correcting a data block comprises correcting the data block in one or more iterations, each iteration comprising applying a first error correction and error detection method in accordance with a first code to a first set of vectors, wherein vectors of the first set of vectors for which t errors are detected but cannot be corrected by the error correction in accordance with the first code are marked, and applying a second error correction and error detection method in accordance with a second code to at least one portion of a second set of vectors, wherein the correction of vectors of the second set of vectors which contain one or more errors that could be corrected in accordance with the second code but relate to entries that do not belong to vectors of the marked vectors of the first set of vectors are skipped.Type: ApplicationFiled: September 12, 2024Publication date: March 13, 2025Inventors: Berndt Gammel, Rainer Göttfert, Stefan Seidl, Martin Schläffer
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Patent number: 12232433Abstract: A semiconductor device including a carrier having two main surfaces situated opposite one another, a circuit, having at least one resistance element, in and/or on the carrier, wherein the at least one resistance element has a longitudinal axis extending vertically between the main surfaces of the carrier, and a current limiting circuit configured to limit a current flowing through the resistance element to a value at which it is ensured that an electrical resistance of the resistance element remains substantially unchanged.Type: GrantFiled: March 8, 2022Date of Patent: February 18, 2025Assignee: Infineon Technologies AGInventors: Artur Wroblewski, Joel Hatsch, Christoph Saas, Stefan Seidl
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Publication number: 20250028892Abstract: Physically obfuscated circuit including subcircuits each having: series-connected transistors of a first conductivity; a transistor of a second conductivity; wherein the transistors are connected such that the series-connected transistors, if supplied with a first reference potential at their respective control terminal, deliver a second reference potential different from the first reference potential to the control terminal of the transistor of the second conductivity; and the transistor of the second conductivity, if supplied with a second reference potential at its control terminal, delivers the first reference potential to the control terminal of each of the series-connected transistors; and a precharge circuit to precharge the subcircuit to a first state in which the potential at the control terminal of the transistor of the second conductivity is different from the second reference potential and the potential at the control terminal of each of the series-connected transistors is different from the firstType: ApplicationFiled: July 22, 2024Publication date: January 23, 2025Inventor: Stefan Seidl
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Patent number: 12182316Abstract: A method for protecting an integrated circuit against reverse engineering including predefining a secret bit, forming a first clocked memory element having a first data input, a first data output and a first clock input in the integrated circuit, forming a second clocked memory element having a second data input, a second data output and a second clock input in the integrated circuit, forming a logic path in the integrated circuit and coupling the first data output to the second data input via the logic path and forming a clock signal line in the integrated circuit and coupling the first clock input to the second clock input via the clock signal line.Type: GrantFiled: January 12, 2023Date of Patent: December 31, 2024Assignee: Infineon Technologies AGInventors: Stefan Seidl, Joel Hatsch, Artur Wroblewski
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Publication number: 20240372736Abstract: A method for evaluating a trustworthiness of sets of a physically unclonable function (PUF) elements, includes: obtaining first information related to a condition of a first set of PUF elements; obtaining second information related to a condition of a second set of PUF elements; and comparing the first information and the second information to determine the trustworthiness of at least one of the sets. The first set includes a first plurality of PUF elements and the second set includes a second plurality of PUF elements. The information related to the condition includes information indicating a respective subset of the set of PUF elements being used or unused when utilizing the respective set of the PUF elements, and/or includes respective error correction information for a bit sequence generated when utilizing the respective set of the PUF.Type: ApplicationFiled: April 30, 2024Publication date: November 7, 2024Inventors: Stefan Seidl, Berndt Gammel
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Patent number: 12095060Abstract: A method for manufacturing a thermal interface in a battery includes providing of at least one battery module and at least one receiving structure, with a receiving region featuring a heat-transmission surface to accommodate a side of the battery module, measuring of the receiving region and/or the side of the battery module. The method further includes determining, based on the measuring, a size and shape of a gap that forms between the heat-transmission surface and the side of the battery module. Additionally, the method includes determining of a dosage specification for a heat-conducting material for filling of the gap, applying of the heat-conducting material onto the heat-transmission surface and/or to the side of the battery module according to the determined dosage specification, and installing the battery module in the intended installation position by compressing of the applied heat-conducting material.Type: GrantFiled: July 16, 2021Date of Patent: September 17, 2024Assignee: LISA DRAEXLMAIER GMBHInventors: Michael Roemelsberger, Stefan Seidl, Robert Magunia, Christoph Riester, Michel Unverricht
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Patent number: 12027685Abstract: A channel for cooling at least one battery cell is set out. The channel includes a first housing frame and a second housing frame. The first housing frame is connected to the second housing frame and a partially fluid-tight region is formed between the first housing frame 133 and the second housing frame by the shape and material properties of the first housing frame and the second housing frame. The partially fluid-tight region forms the channel and the channel is arranged to allow a coolant to flow through the channel.Type: GrantFiled: February 2, 2022Date of Patent: July 2, 2024Assignee: LISA DRÄXLMAIER GMBHInventors: Alexander Hahn, Michael Steckel, Peter Faltermeier, Stefan Seidl
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Patent number: 11888105Abstract: A method and system for thermal connection of a heat source of a battery system to a heat sink of the battery system are provided. The method includes implementing of a placing process using a placing device, wherein a distance between an electrically conducting housing surface of the heat source and an electrically conducting heat-transmission surface that is part of the heat sink or is adjacent to it, is reduced by compression of an electrically insulating heat-conducting material. The method also includes implementing of a continuous measurement of capacitance between the housing surface and the heat-transmission surface during the placing process using a measuring device. Additionally, the method includes monitoring of a layer thickness of the heat-conducting material and controlling of the placing device using a control device until a prescribed layer thickness of the heat-conducting material is attained based on the capacitance measurement.Type: GrantFiled: July 28, 2021Date of Patent: January 30, 2024Assignee: LISA DRAEXLMAIER GMBHInventors: Stefan Seidl, Alexander Hahn
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Publication number: 20240030533Abstract: The present disclosure sets out a receiving structure for battery cells and, in particular for a high-voltage battery for a motor vehicle, the structure including a cell holder made of a foam material with recesses for receiving and fixing the respective battery cells, the cell holder being shaped in such a way that, when the battery cells are arranged in the recesses as intended, at least one region is left free at the respective battery cells, so that an electrically non-conductive cooling medium can flow around this region. The disclosure further sets out a battery and in particular a high-voltage battery for a motor vehicle, having at least one such receiving structure as well as to a method for producing a receiving structure for battery cells.Type: ApplicationFiled: July 30, 2020Publication date: January 25, 2024Inventors: Peter Faltermeier, Michael Steckel, Alexander Hahn, Stefan Seidl
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Publication number: 20230244820Abstract: A method for protecting an integrated circuit against reverse engineering including predefining a secret bit, forming a first clocked memory element having a first data input, a first data output and a first clock input in the integrated circuit, forming a second clocked memory element having a second data input, a second data output and a second clock input in the integrated circuit, forming a logic path in the integrated circuit and coupling the first data output to the second data input via the logic path and forming a clock signal line in the integrated circuit and coupling the first clock input to the second clock input via the clock signal line.Type: ApplicationFiled: January 12, 2023Publication date: August 3, 2023Inventors: Stefan Seidl, Joel Hatsch, Artur Wroblewski
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Publication number: 20230153472Abstract: A bit generation circuit having a plurality of signal chains, where for each chain, a first input of an input multiplexer is connected to another of the signal chains and the multiplexer is configured so that, if a control signal indicating a normal operating mode is fed to the multiplexer, the multiplexer connects the first input to the path input of the signal chain. The second input of each multiplexer is connected to the output of a bit generation trigger circuit and, for each signal chain, the multiplexer is configured so that, if a control signal indicating a secret generation mode is fed to the multiplexer, it connects the second input to the path input of the signal chain. The bit generation circuit furthermore comprises an arbiter circuit connected to the path outputs of at least two signal chains and configured to output a secret bit depending on their states.Type: ApplicationFiled: November 9, 2022Publication date: May 18, 2023Inventors: Stefan Seidl, Joel Hatsch, Artur Wroblewski
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Publication number: 20220293852Abstract: A semiconductor device including a carrier having two main surfaces situated opposite one another, a circuit, having at least one resistance element, in and/or on the carrier, wherein the at least one resistance element has a longitudinal axis extending vertically between the main surfaces of the carrier, and a current limiting circuit configured to limit a current flowing through the resistance element to a value at which it is ensured that an electrical resistance of the resistance element remains substantially unchanged.Type: ApplicationFiled: March 8, 2022Publication date: September 15, 2022Inventors: Artur Wroblewski, Joel Hatsch, Christoph Saas, Stefan Seidl
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Publication number: 20220247007Abstract: A battery module housing is set out having a housing inner space which is arranged to receive at least one battery cell. The module housing includes a housing inner wall which spatially separates the housing inner space from a housing outer wall of the battery module housing. The housing inner wall includes at least one opening which is arranged to allow a cooling fluid to flow from the cooling fluid distributor into the housing inner space.Type: ApplicationFiled: February 2, 2022Publication date: August 4, 2022Inventors: Alexander HAHN, Michael STECKEL, Peter FALTERMEIER, Stefan SEIDL
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Publication number: 20220247008Abstract: A channel for cooling at least one battery cell is set out. The channel includes a first housing frame and a second housing frame. The first housing frame is connected to the second housing frame and a partially fluid-tight region is formed between the first housing frame 133 and the second housing frame by the shape and material properties of the first housing frame and the second housing frame. The partially fluid-tight region forms the channel and the channel is arranged to allow a coolant to flow through the channel.Type: ApplicationFiled: February 2, 2022Publication date: August 4, 2022Inventors: Alexander HAHN, Michael Steckel, Peter Faltermeier, Stefan Seidl
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Publication number: 20210359334Abstract: A method and system for thermal connection of a heat source of a battery system to a heat sink of the battery system are provided. The method includes implementing of a placing process using a placing device, wherein a distance between an electrically conducting housing surface of the heat source and an electrically conducting heat-transmission surface that is part of the heat sink or is adjacent to it, is reduced by compression of an electrically insulating heat-conducting material. The method also includes implementing of a continuous measurement of capacitance between the housing surface and the heat-transmission surface during the placing process using a measuring device. Additionally, the method includes monitoring of a layer thickness of the heat-conducting material and controlling of the placing device using a control device until a prescribed layer thickness of the heat-conducting material is attained based on the capacitance measurement.Type: ApplicationFiled: July 28, 2021Publication date: November 18, 2021Applicant: Lisa Draexlmaier GmbHInventors: Stefan SEIDL, Alexander HAHN
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Publication number: 20210344061Abstract: A method for manufacturing a thermal interface in a battery includes providing of at least one battery module and at least one receiving structure, with a receiving region featuring a heat-transmission surface to accommodate a side of the battery module, measuring of the receiving region and/or the side of the battery module. The method further includes determining, based on the measuring, a size and shape of a gap that forms between the heat-transmission surface and the side of the battery module. Additionally, the method includes determining of a dosage specification for a heat-conducting material for filling of the gap, applying of the heat-conducting material onto the heat-transmission surface and/or to the side of the battery module according to the determined dosage specification, and installing the battery module in the intended installation position by compressing of the applied heat-conducting material.Type: ApplicationFiled: July 16, 2021Publication date: November 4, 2021Applicant: Lisa Draexlmaier GmbHInventors: Michael ROEMELSBERGER, Stefan SEIDL, Robert MAGUNIA, Christoph RIESTER, Michel UNVERRICHT
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Patent number: 11145919Abstract: The present disclosure includes a cooling device with a cooling plate for an energy storage unit to be cooled that is arranged or capable of being arranged thereupon and that is in thermal contact with the cooling plate, wherein a thermally conductive foil and a thermally conductive filler layer are arranged between the energy storage unit and the cooling plate.Type: GrantFiled: May 29, 2017Date of Patent: October 12, 2021Assignee: Lisa Draexlmaier GmbHInventors: Stefan Deser, Stefan Seidl
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Patent number: 10765043Abstract: Embodiments disclose a flexible connection of a metallic extruded profile to a connecting body for cooling electrical components. A heat exchanger for an electrical component comprises a metallic extruded profile having at least one channel for a cooling agent to flow through, the metallic extruded profile including an outer circumferential surface and a first end, a non-metallic connecting body including an accommodating region for receiving the first end of the metallic extruded profile at a first opening corresponding to a cross-section of the first end, the first opening having an inner circumferential surface, and a bonding layer between the outer circumferential surface of the first end received in the accommodating region and the inner circumferential surface of the opening. The bonding layer is configured to establish a mechanically flexible bond between the metallic extruded profile and the non-metallic connecting body. Embodiments further disclose a production method for a heat exchanger.Type: GrantFiled: December 29, 2016Date of Patent: September 1, 2020Assignee: Lisa Draexlmaier GmbHInventors: Stefan Seidl, Bernhard Wallner, Guido Hofer, Stefan Deser, Michael Horak, Alexander Hahn, Alexander Berg