Patents by Inventor Holger Schmidt
Holger Schmidt 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: 11965502Abstract: A housing for a lubricant supply device for supplying a consumer with a lubricant includes a storage space for the viscous medium and a pump space configured to contain a conveying pump for pumping the viscous medium from the storage space to a medium outlet. The storage space is at least partially defined by a side wall, a base wall and a cover wall, and the supply device also includes an outer wall overlying a portion of the storage space side wall and defining with the storage space side wall a first intermediate space. The storage space side wall includes a first opening providing fluid communication between the storage space and the intermediate space.Type: GrantFiled: July 26, 2021Date of Patent: April 23, 2024Assignee: SKF LUBRICATION SYSTEMS GERMANY GMBHInventors: Daniel Beisel, Holger Schmidt, Dieter Schoenherr
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Publication number: 20240128719Abstract: A method for producing a semiconductor component for emitting light includes providing a base body, the base body comprising an active layer for generating the light and a tunnel contact, and forming a stop structure by implantation in a region of the tunnel contact. The stop structure delimits the tunnel contact and serves to constrict a current introduced into the active layer. Defects due to crystal imperfections are generated by the implantation so that the implanted region is transparent for the light having an emitted wavelength.Type: ApplicationFiled: December 27, 2023Publication date: April 18, 2024Inventors: Roman Koerner, Alexander Weigl, Holger Joachim Moench, Berthold Schmidt
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Patent number: 11938978Abstract: A grade crossing control system includes a track circuit with a grade crossing predictor (GCP) system coupled to rails of a railroad track at a grade crossing, wherein a railroad vehicle travelling on the railroad track causes a change of impedance when entering the track circuit, and wherein the GCP system generates grade crossing activation signals in response to the change of the impedance of the track circuit, wherein, for detecting the change of impedance, the GCP system includes a first transmitter transmitting a first signal over the track circuit and a first receiver detecting a first response signal, a second transmitter transmitting a second signal over the track circuit and a second receiver detecting a second response signal, wherein the first transmitter and the first receiver are preprogrammed to a first frequency, and wherein the second transmitter and the second receiver are preprogrammed to a second frequency.Type: GrantFiled: March 30, 2021Date of Patent: March 26, 2024Assignee: Siemens Mobility, Inc.Inventors: Holger Schmidt, Richard Bamfield
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Patent number: 11913941Abstract: A disclosed system uses modulations of ionic current across a nanopore in a membrane to detect target molecules passing through the nanopore. This principle has been applied mainly to nucleic acid sequencing, but can also be used to detect other molecular targets such as proteins and small molecules. In addition, the system delivers target molecules to a nanopore to provide label-free single molecule analysis using a chip-based system. Target molecules are concentrated on microscale carrier beads, and the beads are delivered and optically trapped in an area within the capture radius of the nanopore. The target molecules are released from the beads and detected using nanopore current modulation. In addition, the disclosed system combines sample preparation (e.g. purification, extraction, and pre-concentration) with nanopore-based readout on a microfluidic chip.Type: GrantFiled: October 2, 2018Date of Patent: February 27, 2024Assignees: The Regents of the University of California, Brigham Young UniversityInventors: Holger Schmidt, Aaron Roe Hawkins, David W. Deamer
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Patent number: 11913568Abstract: A method for determining a switching state of a valve that is actuated by a coil, wherein the method includes: respectively ascertaining a current flowing through the coil and a voltage applied to the coil at several times which follow one another with a prespecified time interval, calculating an inductance variable of the coil based on the currents, the voltage and the time interval, and determining the switching state based on the inductance variable. Also disclosed is a solenoid valve assembly.Type: GrantFiled: October 9, 2019Date of Patent: February 27, 2024Assignee: Continental Teves AG & Co. oHGInventors: Bartosz Maj, Holger Kollmann, Tomislav Milic, Alexander Schönbohm, Ralf Schröder, Marc Lenz, Marcus Bletz, Jurij Schmidt, Dieter Dinkel
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Patent number: 11866076Abstract: Aspects of the disclosed embodiments generally relate to railway track circuits, in particular track circuits with continued distance monitoring and broken rail protection.Type: GrantFiled: June 2, 2017Date of Patent: January 9, 2024Assignee: Siemens Mobility, Inc.Inventors: Holger Schmidt, Brian Harp, Brian Joseph Hogan, A. Nathan Edds
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Publication number: 20230264726Abstract: A grade crossing control system (400, 600) includes a track circuit with a grade crossing predictor (GCP) system (40), and at least one auxiliary shunting device (420, 430) connected to the rails (20a, 20b) of the railroad track (20), wherein a railroad vehicle travelling on the railroad track (20) causes a change of impedance when entering the track circuit, wherein the at least one auxiliary shunting device (420, 430) detects a presence of the railroad vehicle travelling on the railroad track (20) and generates an auxiliary change of the impedance of the track circuit, and wherein the GCP system (40) generates grade crossing activation signals in response to the change of the impedance or the auxiliary change of the impedance of the track circuit. The auxiliary shunting device is provided to improve reliability in case of poor shunting.Type: ApplicationFiled: November 4, 2020Publication date: August 24, 2023Applicant: Siemens Mobility, Inc.Inventors: Hartmut Guckel, Holger Schmidt, Richard Bamfield
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Patent number: 11717828Abstract: Spatially distributed optical excitation and integrated waveguides are used for ultrasensitive particle detection based on individual electrokinetic velocities of particles. In some embodiments, chip-integrated systems are used to identify individual particles (e.g., individual molecules) based on their velocity as they move through an optically interrogated channel. Molecular species may be identified and quantified in a fully integrated setting, allowing for particle analysis including molecular analysis that can operate at low copy numbers down to the level of single-cell lysates. In some embodiments, the single-particle velocimetry-based identification and/or separation techniques are applied to various diagnostic assays, including nucleic acids, metabolites, macromolecules, organelles, cell, synthetic markers, small molecules, organic polymers, hormones, peptides, antibodies, lipids, carbohydrates, inorganic and organic microparticles and nanoparticles, whole viruses, and any combination thereof.Type: GrantFiled: December 19, 2017Date of Patent: August 8, 2023Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, BRIGHAM YOUNG UNIVERSITYInventors: Holger Schmidt, Aaron Roe Hawkins
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Patent number: 11713066Abstract: A railroad crossing control system (100) includes a constant warning time device (40) with a control unit (50) configured to produce multiple signals, and a wheel sensing system (120) comprising at least one sensor (122) connected to a rail (20a, 20b) of a railroad track (20) at a predetermined position (P), wherein the wheel sensing system (120) detects a presence of railroad vehicle travelling on the railroad track (20) such that the at least one sensor (122) detects wheels of the railroad vehicle using electromagnetic fields, wherein the wheel sensing system (120) provides speed values of the railroad vehicle to the constant warning time device (40), and wherein the constant warning time device (40) produces a constant warning time signal for controlling a railroad crossing warning device in response to receiving the speed values of the wheel sensing system (120).Type: GrantFiled: March 29, 2017Date of Patent: August 1, 2023Assignee: Siemens Mobility, Inc.Inventors: Brian Harp, Holger Schmidt
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Publication number: 20230236108Abstract: Disclosed herein are systems, methods, and techniques for optical detection of analytes (e.g., biomarkers or other objects) using a liquid-core waveguide in which the analytes are suspended in a high-index liquid inside a liquid channel of the waveguide. The term “high-index” may indicate a refractive core index of the carrier liquid that is higher than or equal to that of one or more surrounding cladding layer(s) (e.g., ethylene glycol liquid inside a glass channel). In some embodiments, a method includes illuminating, by a light-source, one or more particles in a liquid-core waveguide, wherein the liquid-core waveguide comprises a first cladding layer having a first index of a refraction, and a hollow core comprising a liquid inside the hollow core, wherein the liquid has a second index of refraction higher than the first index of refraction; and detecting, by a detector, light emitted from the one or more particles.Type: ApplicationFiled: January 9, 2023Publication date: July 27, 2023Inventor: Holger Schmidt
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Publication number: 20230143765Abstract: A railroad crossing control system includes a grade crossing predictor system or grade crossing motion system with a combined crossing termination shunt, the combined crossing termination shunt including a housing, a first printed circuit board (PCB) comprising first circuitry and first rail terminals, a second printed circuit board (PCB) comprising second circuitry and second rail terminals, wherein the first PCB and the second PCB are positioned inside the housing, and wherein the first circuitry and the second circuitry are configured for a same frequency.Type: ApplicationFiled: November 8, 2021Publication date: May 11, 2023Inventor: Holger Schmidt
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Patent number: 11549881Abstract: Disclosed herein are systems, methods, and techniques for optical detection of analytes (e.g., biomarkers or other objects) using a liquid-core waveguide in which the analytes are suspended in a high-index liquid inside a liquid channel of the waveguide. The term “high-index” may indicate a refractive core index of the carrier liquid that is higher than or equal to that of one or more surrounding cladding layer(s) (e.g., ethylene glycol liquid inside a glass channel). In some embodiments, a method includes illuminating, by a light-source, one or more particles in a liquid-core waveguide, wherein the liquid-core waveguide comprises a first cladding layer having a first index of a refraction, and a hollow core comprising a liquid inside the hollow core, wherein the liquid has a second index of refraction higher than the first index of refraction; and detecting, by a detector, light emitted from the one or more particles.Type: GrantFiled: February 19, 2018Date of Patent: January 10, 2023Assignee: The Regents of the University of CaliforniaInventor: Holger Schmidt
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Publication number: 20220315071Abstract: A grade crossing control system includes a track circuit with a grade crossing predictor (GCP) system coupled to rails of a railroad track at a grade crossing, wherein a railroad vehicle travelling on the railroad track causes a change of impedance when entering the track circuit, and wherein the GCP system generates grade crossing activation signals in response to the change of the impedance of the track circuit, wherein, for detecting the change of impedance, the GCP system includes a first transmitter transmitting a first signal over the track circuit and a first receiver detecting a first response signal, a second transmitter transmitting a second signal over the track circuit and a second receiver detecting a second response signal, wherein the first transmitter and the first receiver are preprogrammed to a first frequency, and wherein the second transmitter and the second receiver are preprogrammed to a second frequency.Type: ApplicationFiled: March 30, 2021Publication date: October 6, 2022Inventors: Holger Schmidt, Richard Bamfield
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Publication number: 20220289584Abstract: A process for the production of lithium carbonate from an aqueous salt solution at least containing lithium ions, chloride ions and calcium ions; the aqueous salt solution with a lithium content of at least 0.005% by weight and a maximum 0.2% by weight is condensed in a first evaporation step at a temperature between 40° C. and 160° C. until a concentrate I with a water content of ?70% by weight and >60% by weight is formed. In a second evaporation step, the concentrate I is evaporated at a temperature between 60° C. and 180° C. until a concentrate II with a water content of ?60% by weight is formed. In a Li concentration step, the lithium content is raised to at least 0.14% by heating the concentrate II to a temperature of at least 60° C. and thus a lithium-rich concentrate III and a residue III are formed.Type: ApplicationFiled: March 8, 2022Publication date: September 15, 2022Inventors: Michael Rössler, Jens-Holger Schmidt
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Patent number: 11420659Abstract: A traffic control system (100) includes a railroad crossing control system (10) with a constant warning time device (40), a wheel sensing system (120) with a sensor (122) connected to a rail (20a, 20b) of a railroad track (20) at a predetermined position (P), and a communication network (140) interfacing with the railroad crossing control system (10) and the wheel sensing system (120) and adapted to transmit data. The wheel sensing system (120) provides speed values of a rail vehicle travelling on the railroad track (20), wherein the speed values are transmitted to the railroad crossing control system (10) via the communication network (140) for producing a preemption signal for the traffic signal control system (110). Further, a method for providing a preemption signal for a traffic signal control system (110) is described.Type: GrantFiled: November 15, 2016Date of Patent: August 23, 2022Assignee: Siemens Mobility, Inc.Inventors: Brian Harp, Holger Schmidt
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Publication number: 20220205912Abstract: Systems, methods, and techniques for optofluidic analyte detection and analysis using multi-mode interference (MMI) waveguides are disclosed herein. In some embodiments, spatially and spectrally multiplexed optical detection of particles is implemented on an optofluidic platform comprising multiple analyte channels intersecting a single MMI waveguide. In some embodiments, multi-stage photonic structures including a first stage MMI waveguide for demultiplexing optical signals by spatially separating different wavelengths of light from one another may be implemented. In some embodiments, a second stage may use single-mode waveguides and/or MMI waveguides to create multi-spot patterns using the demultiplexed, spatially separated light output from the first stage.Type: ApplicationFiled: January 26, 2022Publication date: June 30, 2022Inventors: Holger Schmidt, Aaron Roe Hawkins, Joshua Wayne Parks
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Patent number: 11303089Abstract: A combination of microvalves and waveguides may enable the creation of reconfigurable on-chip light sources compatible with planar sample preparation and particle sensing architecture using either single-mode or multi-mode interference (MMI) waveguides. A first type of light source is a DFB laser source with lateral gratings created by the light valves. Moreover, feedback for creating a narrowband light source does not have to be a DFB grating in the active region. A DBR configuration (Bragg mirrors on one or both ends of the active region) or simple mirrors at the end of the cavity can also be used. Alternately, ring resonators may be created using a valve coupled to a bus waveguide where the active gain medium is either incorporated in the ring or inside an enclosed fluid. The active light source may be activated by moving a fluid trap and/or a solid-core optical component defining its active region.Type: GrantFiled: February 19, 2018Date of Patent: April 12, 2022Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventor: Holger Schmidt
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Patent number: 11297112Abstract: A method for decreasing a Call Setup Time Key Performance Indicator (CST KPI) of an Internet Protocol (IP) multimedia call in a mobile telecommunications network includes: initiating the IP multimedia call from an originating user equipment (UE) to a terminating UE; transmitting a session initiation protocol (SIP) call initiation message from the originating UE to a terminating Proxy-Call Session Control Function (P-CSCF) through an originating Serving-Call Session Control Function (S-CSCF); and creating a wake-up message via a network element upon receiving the SIP call initiation message. The wake-up message bypasses a plurality of network application servers (ASs) to start switching a transition of the terminating UE from an idle state to a connected state before the SIP call initiation message reaches the terminating P-CSCF.Type: GrantFiled: November 12, 2019Date of Patent: April 5, 2022Assignee: DEUTSCHE TELEKOM AGInventors: Holger Schmidt, Stefan-Peter Hoffmann, Rohith Mohandas
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Publication number: 20220056903Abstract: A housing for a lubricant supply device for supplying a consumer with a lubricant includes a storage space for the viscous medium and a pump space configured to contain a conveying pump for pumping the viscous medium from the storage space to a medium outlet. The storage space is at least partially defined by a side wall, a base wall and a cover wall, and the supply device also includes an outer wall overlying a portion of the storage space side wall and defining with the storage space side wall a first intermediate space. The storage space side wall includes a first opening providing fluid communication between the storage space and the intermediate space.Type: ApplicationFiled: July 26, 2021Publication date: February 24, 2022Inventors: Daniel Beisel, Holger Schmidt, Dieter Schoenherr
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Publication number: 20220046067Abstract: A method for decreasing a Call Setup Time Key Performance Indicator (CST KPI) of an Internet Protocol (IP) multimedia call in a mobile telecommunications network includes: initiating the IP multimedia call from an originating user equipment (UE) to a terminating UE; transmitting a session initiation protocol (SIP) call initiation message from the originating UE to a terminating Proxy-Call Session Control Function (P-CSCF) through an originating Serving-Call Session Control Function (S-CSCF); and creating a wake-up message via a network element upon receiving the SIP call initiation message. The wake-up message bypasses a plurality of network application servers (ASs) to start switching a transition of the terminating UE from an idle state to a connected state before the SIP call initiation message reaches the terminating P-CSCF.Type: ApplicationFiled: November 12, 2019Publication date: February 10, 2022Inventors: Holger Schmidt, Stefan-Peter Hoffmann, Rohith Mohandas