Patents by Inventor Dietmar Schmitt
Dietmar Schmitt 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: 11060996Abstract: A gas sensor, and a method for measuring the concentrations of a plurality of target components in a gas to be measured are disclosed. The gas sensor is provided with: an oxygen concentration control means for controlling the oxygen concentration in an oxygen concentration adjustment chamber; a temperature control means for controlling the temperature of a sensor element; a condition setting means which sets the oxygen concentration of the oxygen concentration adjustment chamber and/or the temperature of the sensor element to conditions corresponding to the types of target components in the introduced gas to be measured; and a concentration calculation means which calculates the concentrations of the different target components on the basis of the respective sensor outputs obtained under the plurality of conditions corresponding to the types of target components.Type: GrantFiled: December 21, 2018Date of Patent: July 13, 2021Assignee: NGK INSULATORS, LTD.Inventors: Kunihiko Nakagaki, Dietmar Schmitt
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Publication number: 20190137441Abstract: A gas sensor, and a method for measuring the concentrations of a plurality of target components in a gas to be measured are disclosed. The gas sensor is provided with: an oxygen concentration control means for controlling the oxygen concentration in an oxygen concentration adjustment chamber; a temperature control means for controlling the temperature of a sensor element; a condition setting means which sets the oxygen concentration of the oxygen concentration adjustment chamber and/or the temperature of the sensor element to conditions corresponding to the types of target components in the introduced gas to be measured; and a concentration calculation means which calculates the concentrations of the different target components on the basis of the respective sensor outputs obtained under the plurality of conditions corresponding to the types of target components.Type: ApplicationFiled: December 21, 2018Publication date: May 9, 2019Inventors: Kunihiko NAKAGAKI, Dietmar SCHMITT
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Patent number: 8593236Abstract: The invention concerns a waveguide filter (200NP) for microwaves, characterized in that it has, at least on part of its length, a cross-section having two mutually non-parallel opposite sides (111, 111?), for example trapezoid. The use of such a shape enables the power threshold for forming self-maintained electron avalanche discharges to substantially increased and satisfactory filtering properties to be obtained. The invention also concerns the use of such a filter in a high-power microwave transmitter operating in X and Ka bands, in particular for space applications.Type: GrantFiled: September 12, 2006Date of Patent: November 26, 2013Assignee: Agence Spatiale EuropeenneInventors: Jaime Hueso Gonzalez, David Raboso Garcia-Baquero, Dietmar Schmitt
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Publication number: 20100141357Abstract: The invention concerns a waveguide filter (200NP) for microwaves, characterized in that it has, at least on part of its length, a cross-section having two mutually non-parallel opposite sides (111, 111?), for example trapezoid. The use of such a shape enables the power threshold for forming self-maintained electron avalanche discharges to substantially increased and satisfactory filtering properties to be obtained. The invention also concerns the use of such a filter in a high-power microwave transmitter operating in X and Ka bands, in particular for space applications.Type: ApplicationFiled: September 12, 2006Publication date: June 10, 2010Inventors: Jaime Hueso Gonzalez, David Raboso Garcia-Baquero, Dietmar Schmitt
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Patent number: 7468641Abstract: A microwave bandstop filter comprises a waveguide segment of cross-section that presents longitudinal variation of sinusoidal type modulated by an amplitude function that is continuous, the period of said longitudinal variation of sinusoidal type being the Bragg period for the fundamental guided mode at a center frequency of the band to be stopped. A filter assembly comprises a microwave lowpass filter presenting a cutoff frequency and at least one interfering passband at frequencies higher than said cutoff frequency, and at least one bandstop filter as defined above, connected to the output of said lowpass filter, in which the amplitude and the period of said longitudinal variation, and also the length over which it extends are such that they stop said interfering passband of said lowpass filter. An output multiplexer for a multichannel microwave transmitter includes such a filter assembly.Type: GrantFiled: July 26, 2006Date of Patent: December 23, 2008Assignee: Agence Spatiale EuropeenneInventors: Mario Sorolla, Dietmar Schmitt, Marco Guglielmi, Javier Gil, Noelia Ortiz Perez De Eulate
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Patent number: 7375605Abstract: A method and an arrangement for temperature compensation at circular resonators with dual mode utilization, which includes a material with a low coefficient of thermal expansion and for which the tensile or compressive forces are transferred to the resonator wall and produce elastic deformations there. The resonator wall is deformed in two mutually perpendicular directions in each case by the same absolute amount at one or more places along the axial e extent, the deformation forces being introduced into the resonator war over at least one flange. This has the advantage that the peripheral shape of the casing of the circular resonator is deformed so that both orthogonal dual modes experience uniform shortening with simultaneous expansion of the material, as a result of which a high compensation effect is achieved.Type: GrantFiled: March 11, 2004Date of Patent: May 20, 2008Assignee: Tesat-Spacecom GmbH & Co. KGInventors: Franz-Josef Goertz, Dieter Wolk, Dietmar Schmitt, Juergen Damaschke
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Publication number: 20070024394Abstract: A microwave bandstop filter comprises a waveguide segment of cross-section that presents longitudinal variation of sinusoidal type modulated by an amplitude function that is continuous, the period of said longitudinal variation of sinusoidal type being the Bragg period for the fundamental guided mode at a center frequency of the band to be stopped. A filter assembly comprises a microwave lowpass filter presenting a cutoff frequency and at least one interfering passband at frequencies higher than said cutoff frequency, and at least one bandstop filter as defined above, connected to the output of said lowpass filter, in which the amplitude and the period of said longitudinal variation, and also the length over which it extends are such that they stop said interfering passband of said lowpass filter. An output multiplexer for a multichannel microwave transmitter includes such a filter assembly.Type: ApplicationFiled: July 26, 2006Publication date: February 1, 2007Inventors: Mario Sorolla, Dietmar Schmitt, Marco Guglielmi, Javier Gil, Noelia Perez De Eulate
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Publication number: 20060109068Abstract: A method and an arrangement for temperature compensation at circular resonators with dual mode utilization, which includes a material with a low coefficient of thermal expansion and for which the tensile or compressive forces are transferred to the resonator wall and produce elastic deformations there. The resonator wall is deformed in two mutually perpendicular directions in each case by the same absolute amount at one or more places along the axial extent, the deformation forces being introduced into the resonator war over at least one flange. This has the advantage that the peripheral shape of the casing of the circular resonator is deformed so that both orthogonal dual modes experience uniform shortening with simultaneous expansion of the material, as a result of which a high compensation effect is achieved.Type: ApplicationFiled: March 11, 2004Publication date: May 25, 2006Inventors: Franz-Josef Goertz, Dieter Wolk, Dietmar Schmitt
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Publication number: 20040012466Abstract: A cavity resonator having a coupling iris (3) has an auxiliary iris (5) which divides the resonator (1) into a coupling space (8) and a resonator space (9). Thus, the auxiliary iris (5) alters the length effective for the resonant frequency of the resonator (1). Disturbances, particularly temperature-induced deformations of the coupling iris (3), may thereby be effectively compensated.Type: ApplicationFiled: August 13, 2003Publication date: January 22, 2004Inventors: Wolfgang Hauth, Dietmar Schmitt
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Patent number: 6603374Abstract: For fixing a dielectric insert in a waveguide, clamping bodies are provided which contact the dielectric insert on its outer periphery only tangentially. The dielectric insert is fixed in a wave propagation direction by a supporting element. In a further embodiment, the dielectric insert is rigidly mounted on the supporting element. As a result thermal stresses can be absorbed.Type: GrantFiled: July 5, 1996Date of Patent: August 5, 2003Assignee: Robert Bosch GmbHInventors: Franz-Josef Goertz, Dietmar Schmitt
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Patent number: 6433656Abstract: A waveguide arrangement for microwaves and the like has a first waveguide composed of a material having a first thermal expansion coefficient, a second waveguide composed of a material having a second thermal expansion coefficient which is different from the first thermal expansion coefficient, and a transition element provided between the first and second waveguides for mechanical uncoupling of the different thermal expansion coefficients of both the waveguides.Type: GrantFiled: October 29, 1999Date of Patent: August 13, 2002Assignee: Robert Bosch GmbHInventors: Dieter Wolk, Juergen Damaschke, Dietmar Schmitt
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Publication number: 20020089398Abstract: A waveguide arrangement for microwaves and the like has a first waveguide composed of a material having a first thermal expansion coefficient, a second waveguide composed of a material having a second thermal expansion coefficient which is different from the first thermal expansion coefficient, and a transition element provided between the first and second waveguides for mechanical uncoupling of the different thermal expansion coefficients of both the waveguides.Type: ApplicationFiled: October 29, 1999Publication date: July 11, 2002Inventors: DIETER WOLK, JUERGEN DAMASCHKE, DIETMAR SCHMITT
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Patent number: 6285267Abstract: A waveguide filter having a stepped transformer area on the input and/or output sides, with at least one band-stop filter composed of geometrically closely spaced stop elements integrated into this stepped transformer area. These features make it possible to build waveguide filters with a high edge steepness and a short overall length.Type: GrantFiled: June 15, 2000Date of Patent: September 4, 2001Assignee: Robert Bosch GmbHInventors: Wolfgang Hauth, Dietmar Schmitt
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Patent number: 6066996Abstract: A microwave filter has at least two resonators, with at least two degenerated wave types resonance-capable in one resonator. The resonators are in operative connection with one another so that possible couplings of the degenerated wave types are only overcouplings and these overcouplings are located outside the resonator in which the two degenerated wave types are resonance-capable. As a result, the microwave filter has higher quality, improved selection properties and optimal polarization adapation.Type: GrantFiled: May 28, 1996Date of Patent: May 23, 2000Assignee: Robert Bosch GmbHInventors: Franz-Josef Goertz, Uwe Rosenberg, Dietmar Schmitt
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Patent number: 5859574Abstract: In a dielectric resonator a dielectric insert is formed so that at least two slots are provided, which are located opposite to one another and extend symmetrically and radially toward a center. Because of the radial slots, a dielectric resonator with high mode distance and high quality is obtained.Type: GrantFiled: October 8, 1996Date of Patent: January 12, 1999Assignee: Robert Bosch GmbHInventor: Dietmar Schmitt