Patents by Inventor Stefan Hoefle
Stefan Hoefle 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: 11453402Abstract: The present disclosure relates to a method for determining the fatigue of a driver of a motor vehicle, wherein the fatigue is determined while taking into account the steering behavior of the driver, characterized in that the method includes the following steps: determination of a hysteresis of the steering system or the fatigue detection system, and taking into account the detected hysteresis in the determination of the fatigue of the driver. Furthermore, the disclosure relates to a device that is set up to execute the method.Type: GrantFiled: November 7, 2019Date of Patent: September 27, 2022Assignee: Robert Bosch GmbHInventors: Benedikt Stiller, Matthias Rupp, Stefan Hoefle, Valentin Loeffelmann
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Patent number: 11292478Abstract: A method for detecting drowsiness of a driver for a driver assistance system of a vehicle includes reading in at least a first indicator signal that represents a first drowsiness parameter of the driver determined by a first drowsiness-detection device of the vehicle, and a second indicator signal that represents a second drowsiness parameter of the driver determined by a second drowsiness-detection device of the vehicle, and optionally a third indicator signal that represents a third drowsiness parameter of the driver determined by a third drowsiness-detection device of the vehicle; ascertaining validities of the indicator signals; and determining a drowsiness signal that represents the detected drowsiness of the driver utilizing the indicator signals and the validities.Type: GrantFiled: April 3, 2020Date of Patent: April 5, 2022Assignee: Robert Bosch GmbHInventors: Benedikt Stiller, Stefan Hoefle, Valentin Loeffelmann
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Patent number: 10937982Abstract: The present invention relates to a an organic electroluminescent device comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluorescence (TADF) material EB, and a second TADF material SB, wherein EB transfers energy to SB and SB emits TADF with an emission maximum between 420 and 500 nm.Type: GrantFiled: May 4, 2018Date of Patent: March 2, 2021Assignee: CYNORA GMBHInventors: Andreas Haldi, Georgios Liaptsis, Harald Fluegge, Patrick Pingel, Stefan Hoefle
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Patent number: 10804481Abstract: The present invention relates to a an organic electroluminescent device comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluorescence (TADF) material EB, and a second TADF material SB, wherein SB transfers energy to EB and EB emits TADF with an emission maximum between 420 and 500 nm.Type: GrantFiled: May 4, 2018Date of Patent: October 13, 2020Assignee: CYNORA GMBHInventors: Andreas Haldi, Georgios Liaptsis, Harald Fluegge, Patrick Pingel, Stefan Hoefle
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Publication number: 20200317211Abstract: A method for detecting drowsiness of a driver for a driver assistance system of a vehicle includes reading in at least a first indicator signal that represents a first drowsiness parameter of the driver determined by a first drowsiness-detection device of the vehicle, and a second indicator signal that represents a second drowsiness parameter of the driver determined by a second drowsiness-detection device of the vehicle, and optionally a third indicator signal that represents a third drowsiness parameter of the driver determined by a third drowsiness-detection device of the vehicle; ascertaining validities of the indicator signals; and determining a drowsiness signal that represents the detected drowsiness of the driver utilizing the indicator signals and the validities.Type: ApplicationFiled: April 3, 2020Publication date: October 8, 2020Inventors: Benedikt Stiller, Stefan Hoefle, Valentin Loeffelmann
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Publication number: 20200189605Abstract: The present disclosure relates to a method for determining the fatigue of a driver of a motor vehicle, wherein the fatigue is determined while taking into account the steering behavior of the driver, characterized in that the method includes the following steps: determination of a hysteresis of the steering system or the fatigue detection system, and taking into account the detected hysteresis in the determination of the fatigue of the driver. Furthermore, the disclosure relates to a device that is set up to execute the method.Type: ApplicationFiled: November 7, 2019Publication date: June 18, 2020Inventors: Benedikt Stiller, Matthias Rupp, Stefan Hoefle, Valentin Loeffelmann
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Patent number: 10629815Abstract: The invention relates to new conjugated semiconducting polymers containing thermally cleavable side groups. The thermally cleavable side groups are selected from among carbonate groups and carbamate groups. By thermally cleaving side groups, the solubility or the polymers can be reduced in a targeted manner. The polymers are used as semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, organic photodetectors (OPDs), organic light emitting diodes (OLEDs), and organic field effect transistors (OFETs).Type: GrantFiled: February 10, 2015Date of Patent: April 21, 2020Assignees: INNOVATIONLAB GMBH, KARLSRUHER INSTITUT FUER TECHNOLOGIE, TECHNISCHE UNIVERSITAET BRAUNSCHWEIG, MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.Inventors: Marius Kuhn, Torben Adermann, Manuel Hamburger, Klaus Muellen, Janusz Schinke, Alexander Colsmann, Stefan Hoefle, Ulrich Lemmer
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Publication number: 20180323394Abstract: The present invention relates to a an organic electroluminescent device comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluorescence (TADF) material EB, and a second TADF material SB, wherein SB transfers energy to EB and EB emits TADF with an emission maximum between 420 and 500 nm.Type: ApplicationFiled: May 4, 2018Publication date: November 8, 2018Inventors: Andreas HALDI, Georgios LIAPTSIS, Harald FLUEGGE, Patrick PINGEL, Stefan HOEFLE
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Publication number: 20180323395Abstract: The present invention relates to a an organic electroluminescent device comprising a light-emitting layer B comprising a host material HB, a first thermally activated delayed fluorescence (TADF) material EB, and a second TADF material SB, wherein EB transfers energy to SB and SB emits TADF with an emission maximum between 420 and 500 nm.Type: ApplicationFiled: May 4, 2018Publication date: November 8, 2018Inventors: Andreas HALDI, Georgios LIAPTSIS, Harald FLUEGGE, Patrick PINGEL, Stefan HOEFLE
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Patent number: 9960390Abstract: A method of producing an optoelectronic device includes A) providing a substrate, B) applying a first electrode to the substrate, C) applying a first organic layer stack to the first electrode, D) producing a charge-generating layer stack on the first organic layer stack, E) applying a second organic layer stack to the charge-generating layer stack, and F) applying a second electrode to the second organic layer stack, wherein step D) includes D1) applying a solution of a first metal oxide precursor to the first organic layer stack, D2) generating a first charge-generating layer comprising a first metal oxide, D3) applying a solution of a second metal oxide precursor to the first charge-generating layer, and D4) generating a second charge-generating layer comprising a second metal oxide.Type: GrantFiled: August 27, 2014Date of Patent: May 1, 2018Assignee: OSRAM OLED GmbHInventors: Stefan Höfle, Alexander Colsmann, Manuel Reinhard, Uli Lemmer
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Publication number: 20170331043Abstract: The invention relates to new conjugated semiconducting polymers containing thermally cleavable side groups. The thermally cleavable side groups are selected from among carbonate groups and carbamate groups, By thermally cleaving side groups, the solubility or the polymers can he reduced in a targeted manner. The polymers are used as semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, organic photodetectors (OPDs), organic light emitling diodes (OLEDs), and organic field effect transistors (OFETs).Type: ApplicationFiled: February 10, 2015Publication date: November 16, 2017Applicants: INNOVATIONLAB GMBH, KARLSRUHER INSTITUT FUER TECHNOLOGIE, TECHNISCHE UNIVERSITAET BRAUNSCHWEIG, MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENS CHAFTEN E.V.Inventors: Marius Kuhn, Torben Adermann, Manuel Hamburger, Klaus Muellen, Janusz Schinke, Alexander Colsmann, Stefan Hoefle, Ulrich Lemmer
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Patent number: 9599043Abstract: A method for stopping an internal combustion engine, in which an air flow supplied via an air metering device, in particular a throttle valve of the internal combustion engine, is reduced after a stopping request has been ascertained, an undershoot point in time is ascertained, at which an ascertained speed of the internal combustion engine falls below a pre-definable speed threshold value, after the undershoot point in time, the air flow supplied via the air metering device of the internal combustion engine is increased again, the predefinable speed threshold value being selected in such a way that an intake cylinder no longer enters a compression stroke after the increase of the supplied air flow until the internal combustion engine is at a standstill, a degree of opening of the air metering device to increase the supplied air flow being selected as a function of a coasting speed of the internal combustion engine.Type: GrantFiled: September 21, 2012Date of Patent: March 21, 2017Assignee: ROBERT BOSCH GMBHInventors: Karthik Rai, Stefan Hoefle
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Publication number: 20160204388Abstract: A method of producing an optoelectronic device includes A) providing a substrate, B) applying a first electrode to the substrate, C) applying a first organic layer stack to the first electrode, D) producing a charge-generating layer stack on the first organic layer stack, E) applying a second organic layer stack to the charge-generating layer stack, and F) applying a second electrode to the second organic layer stack, wherein step D) includes D1) applying a solution of a first metal oxide precursor to the first organic layer stack, D2) generating a first charge-generating layer comprising a first metal oxide, D3) applying a solution of a second metal oxide precursor to the first charge-generating layer, and D4) generating a second charge-generating layer comprising a second metal oxide.Type: ApplicationFiled: August 27, 2014Publication date: July 14, 2016Applicant: OSRAM OLED GMBHInventors: Stefan Höfle, Alexander Colsmann, Manuel Reinhard, Uli Lemmer
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Publication number: 20140278004Abstract: A method for stopping an internal combustion engine, in which an air flow supplied via an air metering device, in particular a throttle valve of the internal combustion engine, is reduced after a stopping request has been ascertained, an undershoot point in time is ascertained, at which an ascertained speed of the internal combustion engine falls below a pre-definable speed threshold value, after the undershoot point in time, the air flow supplied via the air metering device of the internal combustion engine is increased again, the predefinable speed threshold value being selected in such a way that an intake cylinder no longer enters a compression stroke after the increase of the supplied air flow until the internal combustion engine is at a standstill, a degree of opening of the air metering device to increase the supplied air flow being selected as a function of a coasting speed of the internal combustion engine.Type: ApplicationFiled: September 21, 2012Publication date: September 18, 2014Inventors: Karthik Rai, Stefan Hoefle