Patents by Inventor Ulrich Vogl
Ulrich Vogl 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: 11921070Abstract: It is an object of the invention to improve processes, apparatuses and systems for measuring a measured variable. To this end, a measured variable is measured in a measuring process on the basis of an NV center as a quantum sensor. The NV center has a plurality of quantum states and is optically excitable on the basis of an occupancy of one of the quantum states into at least one excited state of the quantum states by means of an excitation light. The at least one excited state can decay at least with emission of emission light of the NV center. In the measuring process, the NV center is irradiated by the excitation light, the excitation light having a time periodic modulation, and a respective occupancy probability and/or a respective lifetime of the quantum states depending on the measured variable and the excitation light.Type: GrantFiled: October 19, 2020Date of Patent: March 5, 2024Assignee: Carl Zeiss AGInventors: Nils Trautmann, Ulrich Vogl, Jörg Wrachtrup, Rainer Stöhr
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Publication number: 20220368104Abstract: A control system for frequency control of a laser module, comprising at least one laser module for generating laser radiation, at least one control device coupled or configured to couple to the laser module, and at least one optical resonator coupled or configured to couple to the control device, wherein the control device comprises a semiconductor substrate, a first Pound-Drever-Hall system arranged on the semiconductor substrate and at least one second Pound-Drever-Hall system arranged on the semiconductor substrate, wherein the laser module is coupled to the first Pound-Drever-Hall system of the control device and is configured to couple to the at least second Pound-Drever-Hall system of the control device, wherein the first Pound-Drever-Hall system is coupled to the optical resonator and wherein the second Pound-Drever-Hall system is configured to couple to the optical resonator, and wherein the number of Pound-Drever-Hall systems is greater than the number of laser modules or optical resonators.Type: ApplicationFiled: July 29, 2022Publication date: November 17, 2022Inventors: Arian KRIESCH, Matthias MANGER, Claudius WEIMANN, Ulrich VOGL
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Publication number: 20220365012Abstract: It is an object of the invention to improve processes, apparatuses and systems for measuring a measured variable. To this end, a measured variable is measured in a measuring process on the basis of an NV center as a quantum sensor. The NV center has a plurality of quantum states and is optically excitable on the basis of an occupancy of one of the quantum states into at least one excited state of the quantum states by means of an excitation light. The at least one excited state can decay at least with emission of emission light of the NV center. In the measuring process, the NV center is irradiated by the excitation light, the excitation light having a time periodic modulation, and a respective occupancy probability and/or a respective lifetime of the quantum states depending on the measured variable and the excitation light.Type: ApplicationFiled: October 19, 2020Publication date: November 17, 2022Applicant: Carl Zeiss AGInventors: Nils TRAUTMANN, Ulrich VOGL, Jörg WRACHTRUP, Rainer STÖHR
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Patent number: 8676542Abstract: Apparatus for reducing an interference portion in a time-discrete signal further including a useful portion, including a first provider for providing the time-discrete signal including the interference portion and the useful portion; a second provider for providing a first time-discrete reference signal including a first interference portion, and a second time-discrete reference signal including a second interference portion, the second interference portion being shifted in phase relative to the first interference portion. The apparatus further includes a subtractor for generating a differential signal from the two reference signals, the differential signal including a frequency component caused by the first and second interference portions; and a manipulator for manipulating the time-discrete signal on the basis of the differential signal such that in a manipulated time-discrete signal the frequency component is reduced.Type: GrantFiled: February 6, 2007Date of Patent: March 18, 2014Assignee: Fraunhofer-Gesellschaft zur Foederung der Angewandten Forshung e.V.Inventors: Andreas Tobola, Ulrich Vogl, Hans-Joachim Moersdorf
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Patent number: 8398557Abstract: An apparatus including a receiver and an extractor is provided for determining a physiological parameter of a living being. The receiver is adapted to receive iterating optical signals, the optical signal including sequences, and a sequence including at least two bright periods during which a transmit light source adopts an on state and at least one dark period during which no transmit light source adopts an on state, and the at least two bright periods being irregularly arranged within a sequence. In addition, the apparatus includes an extractor. The extractor extracts information on the physiological parameter from a receive signal, the extractor being adapted to extract, on the basis of the information on the arrangement of the bright periods within the sequence, a value of a magnitude indicating a vital parameter.Type: GrantFiled: February 6, 2007Date of Patent: March 19, 2013Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.Inventors: Andreas Tobola, Ulrich Vogl, Hans-Joachim Moersdorf
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Patent number: 8295901Abstract: An apparatus for determining a spectral ratio between a first signal having a first spectrum which depends on a biological quantity, and a second signal having a second spectrum which depends on a biological quantity, the first signal and the second signal having a plurality of harmonics of a periodic signal, the apparatus including a computer for computing a first wave ratio between a spectral value of the first spectrum which has a frequency of a harmonic of the plurality of harmonics, and a spectral value of the second spectrum which has the frequency of the harmonic; and for computing a second wave ratio between a spectral value of the first spectrum which has a frequency of another harmonic of the plurality of harmonics, and a spectral value of the second spectrum which has the frequency of the other harmonic. In addition, the apparatus includes an optimizer.Type: GrantFiled: February 16, 2007Date of Patent: October 23, 2012Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung E.V.Inventors: Andreas Tobola, Ulrich Vogl, Hans-Joachim Moersdorf
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Publication number: 20100292593Abstract: An apparatus including a receiver and an extractor is provided for determining a physiological parameter of a living being. The receiver is adapted to receive iterating optical signals, the optical signal including sequences, and a sequence including at least two bright periods during which a transmit light source adopts an on state and at least one dark period during which no transmit light source adopts an on state, and the at least two bright periods being irregularly arranged within a sequence. In addition, the apparatus includes an extractor. The extractor extracts information on the physiological parameter from a receive signal, the extractor being adapted to extract, on the basis of the information on the arrangement of the bright periods within the sequence, a value of a magnitude indicating a vital parameter.Type: ApplicationFiled: February 6, 2007Publication date: November 18, 2010Inventors: Andreas Tobola, Ulrich Vogl, Hans-Joachim Moersdorf
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Publication number: 20090216499Abstract: Apparatus for reducing an interference portion in a time-discrete signal further including a useful portion, including a first provider for providing the time-discrete signal including the interference portion and the useful portion; a second provider for providing a first time-discrete reference signal including a first interference portion, and a second time-discrete reference signal including a second interference portion, the second interference portion being shifted in phase relative to the first interference portion. The apparatus further includes a subtractor for generating a differential signal from the two reference signals, the differential signal including a frequency component caused by the first and second interference portions; and a manipulator for manipulating the time-discrete signal on the basis of the differential signal such that in a manipulated time-discrete signal the frequency component is reduced.Type: ApplicationFiled: February 6, 2007Publication date: August 27, 2009Inventors: Andreas Tobola, Ulrich Vogl, Hans-Joachim Moersdorf
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Publication number: 20080027299Abstract: An apparatus for determining a spectral ratio between a first signal having a first spectrum which depends on a biological quantity, and a second signal having a second spectrum which depends on a biological quantity, the first signal and the second signal having a plurality of harmonics of a periodic signal, the apparatus including a computer for computing a first wave ratio between a spectral value of the first spectrum which has a frequency of a harmonic of the plurality of harmonics, and a spectral value of the second spectrum which has the frequency of the harmonic; and for computing a second wave ratio between a spectral value of the first spectrum which has a frequency of another harmonic of the plurality of harmonics, and a spectral value of the second spectrum which has the frequency of the other harmonic.Type: ApplicationFiled: February 16, 2007Publication date: January 31, 2008Inventors: Andreas Tobola, Ulrich Vogl, Hans-Joachim Moersdorf
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Patent number: 7308018Abstract: The invention relates to the preparation and numerical optimization of non-linear space-time block codes for application in a digital mobile radio system, with a maximum transmission diversity for “Rate 1,” transmission systems in the case of two or more transmitter antennae and with complex symbols.Type: GrantFiled: March 4, 2002Date of Patent: December 11, 2007Assignee: Siemens AktiengesellschaftInventors: Alexander Seeger, Ulrich Vogl
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Publication number: 20040179467Abstract: The invention relates to the preparation and numerical optimization of non-linear space-time block codes for application in a digital mobile radio system, with a maximum transmission diversity for “Rate 1” transmission systems in the case of two or more transmitter antennae (Txn) and with complex symbols.Type: ApplicationFiled: September 29, 2003Publication date: September 16, 2004Inventors: Alexander Seeger, Ulrich Vogl