Patents by Inventor Thomas Schäfer

Thomas Schäfer 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).

  • Publication number: 20260100029
    Abstract: In a method for training a neural network for detecting an object, geometric dimensions of a test object from an object class are captured, and during a time period, recordings of the test object are generated by a plurality of cameras. From the captured geometric dimensions and the generated recordings, occupancy maps are generated. By a radar device, a radar signal is transmitted, and a radar signal reflected by the test object is received. The transmitted radar signal and the received radar signal are mixed into a complex baseband to form a mixed signal. A complex four-dimensional mixed spectrum of the mixed signal is calculated. From the complex four-dimensional mixed spectrum, a first complex two-dimensional partial spectrum and a second complex two-dimensional partial spectrum are calculated. The occupancy maps and the partial spectra are fusioned to form training data. The training data are fed to the neural network.
    Type: Application
    Filed: July 27, 2023
    Publication date: April 9, 2026
    Applicant: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Thomas SCHÄFER, Leon Rafael SCHÖNFELD
  • Patent number: 12593118
    Abstract: A receiver for a system for transmitting light, includes a camera having an image sensor, a light-sensitive area of the image sensor including a plurality of lines of light-sensitive elements, the image sensor being configured such that the light-sensitive area of the image sensor is scanned line by line or column by column, and an attachment element disposed such that light impinging on the light-sensitive area of the image sensor first passes through the attachment element. The attachment element includes strip-shaped, contoured regions and strip-shaped, planar regions. The contoured regions and the planar regions are disposed alternately in a transverse direction. The contoured regions have a constant cross section in an advance direction extending perpendicular to the transverse direction.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: March 31, 2026
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Dirk Degen, Josef Schmidt, Zhidong Hua, Thomas Schäfer, Philipp Lehmann
  • Patent number: 12481102
    Abstract: A communication module for a system for transferring data by light beams includes a transmitter for emitting a light beam in which data to be transferred are encoded, and a receiver for receiving a light beam. The transmitter includes a light source, and the receiver includes a light sensor. The transmitter and receiver are disposed offset from each other in a vertical direction. The transmitter emits a light beam in a longitudinal direction. The receiver has a mirror, which can be pivoted about a pivot axis extending in the vertical direction between a folded-out position and a folded-in position. The mirror is disposed such that a light beam incident from the longitudinal direction is deflected toward the light sensor by the mirror in the folded-out position. A system for transferring data by light beams includes at least one first communication module and at least one second communication module.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: November 25, 2025
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Zhidong Hua, Thomas Schäfer, Andreas Wanjek, Michael Ermert
  • Patent number: 12460770
    Abstract: In a method for operating a technical installation that includes an outer zone, a danger zone, an access zone which provides for access from the outer zone to the danger zone, a light curtain for monitoring the access zone, and at least one mobile system: a protective field is generated and activated in the access zone by the light curtain before entry of the at least one mobile system into the access zone; when the at least one mobile system approaches the access zone, a mobile communication unit of the at least one mobile system transmits a request signal to a stationary communication unit of the light curtain; and after reception of the request signal by the stationary communication unit the protective field is deactivated by the light curtain. A technical apparatus is configured to carry out the method.
    Type: Grant
    Filed: May 30, 2022
    Date of Patent: November 4, 2025
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Thomas Schäfer, Andreas Wanjek
  • Publication number: 20250185804
    Abstract: A furniture or household appliance element has a guide bearing arranged between the top support plate and the top plate or between the base support plate and the base plate. The guide bearing has a guide cam track and a guide element guided in the guide cam track and a linear guide with connecting parts which are displaceable relative to one another in a direction of translation. At least one end stop is arranged between the top support plate or the top plate or between the base support plate or the base plate.
    Type: Application
    Filed: March 2, 2023
    Publication date: June 12, 2025
    Inventors: Christian KOPTIK, Thomas SCHÄFER, Waldemar PETKER, Sören KLÜTER
  • Publication number: 20250169605
    Abstract: A furniture or household appliance element includes a guide bearing arranged between the cover support plate and the cover plate or between the base support plate and the base plate. The guide bearing has a guide cam track, a guide element guided in/on the guide cam track, and a linear guide with connecting parts displaceable relative to one another in a direction of translation. The guide element is a support element supported on/in the guide cam track, the position of the guide element being variably adjustable perpendicular to the plane of the cover support plate or the base support plate.
    Type: Application
    Filed: March 2, 2023
    Publication date: May 29, 2025
    Inventors: Frank BAUERRICHTER, Andreas MONTECCHIO, Christian KOPTIK, Thomas SCHÄFER, Timo SZLAPKA, Waldemar PETKER, Sören KLÜTER
  • Publication number: 20250057046
    Abstract: The present invention relates to specific compounds, a material, preferably an emitter material, for an organic electroluminescence device comprising said specific compounds, an organic electroluminescence device comprising said specific compounds, an electronic equipment comprising said organic electroluminescence device, a light emitting layer comprising at least one host and at least one dopant, wherein the dopant comprises at least one of said specific compounds, and the use of said compounds in an organic electroluminescence device.
    Type: Application
    Filed: July 25, 2024
    Publication date: February 13, 2025
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Pierre BOUFFLET, Michelle GROARKE, Yuichi NISHIMAE, Thomas SCHÄFER, Chao-Chen LIN
  • Patent number: 12091068
    Abstract: In a system and method for operating a system having a rail, a stationary unit, rail-guided mobile parts, and a slotted hollow waveguide, either a first one of the mobile parts or the stationary unit functions as a transmitter, and a second one of the mobile parts functions as a receiver. The transmitter is configured for the simultaneous transmission of an electromagnetic signal and an acoustic signal, e.g., at a first instant. The receiver, which is set apart from the transmitter, is configured to detect the arrival of the electromagnetic signal at a second instant and to detect the arrival of the acoustic signal at a third instant. The second mobile part has an evaluation unit which is configured to determine the distance between the transmitter and the receiver based on the acquired second and third instants.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: September 17, 2024
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Zhidong Hua, Jonas Felix Bürgel, Michael Lindenfelser, Andreas Wanjek, Thomas Schäfer, Josef Schmidt
  • Patent number: 12081854
    Abstract: A receiver for a light transmission system includes a camera having an image sensor, and a light-sensitive area of the image sensor includes a plurality of rows of light-sensitive elements. The image sensor is configured such that the light-sensitive area of the image sensor is scanned row by row or column by column. An attachment element is arranged such that light incident on the light-sensitive area of the image sensor passes through the attachment element beforehand. The attachment element has at least one lenticular region and at least one planar region.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: September 3, 2024
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Zhidong Hua, Patrick Rech, Thomas Schäfer, Josef Schmidt
  • Publication number: 20240218972
    Abstract: In a method for operating a technical installation that includes an outer zone, a danger zone, an access zone which provides for access from the outer zone to the danger zone, a light curtain for monitoring the access zone, and at least one mobile system: a protective field is generated and activated in the access zone by the light curtain before entry of the at least one mobile system into the access zone; when the at least one mobile system approaches the access zone, a mobile communication unit of the at least one mobile system transmits a request signal to a stationary communication unit of the light curtain; and after reception of the request signal by the stationary communication unit the protective field is deactivated by the light curtain. A technical apparatus is configured to carry out the method.
    Type: Application
    Filed: May 30, 2022
    Publication date: July 4, 2024
    Applicant: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Thomas SCHÄFER, Andreas WANJEK
  • Patent number: 11999390
    Abstract: In a rail system with a rail and mobile parts movable along the rail, e.g., rail vehicles, a profiled part is arranged on the rail and includes a cavity, which, e.g., terminates at an opening into the environment. Regions of a mobile part, e.g., regions of each mobile part, at least partially project into the cavity, and at least one transmitter and receiver are situated in the respective region.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: June 4, 2024
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Michael Lindenfelser, Andreas Wanjek, Zhidong Hua, Thomas Schäfer
  • Patent number: 11988531
    Abstract: A system includes an optical waveguide, provided as a component of a first part, and at least one sensor system, provided as a component of a second part. The second part is movable relative to the first part, and the optical waveguide radiates light laterally on the side. The sensor system detects the light intensity of the laterally emitted light emitted by the optical waveguide. A grating is provided between the sensor system and the optical waveguide.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: May 21, 2024
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Zhidong Hua, Josef Schmidt, Thomas Schäfer, Andreas Wanjek
  • Publication number: 20240142708
    Abstract: A communication module for a system for transferring data by light beams includes a transmitter for emitting a light beam in which data to be transferred are encoded, and a receiver for receiving a light beam. The transmitter includes a light source, and the receiver includes a light sensor. The transmitter and receiver are disposed offset from each other in a vertical direction. The transmitter emits a light beam in a longitudinal direction. The receiver has a mirror, which can be pivoted about a pivot axis extending in the vertical direction between a folded-out position and a folded-in position. The mirror is disposed such that a light beam incident from the longitudinal direction is deflected toward the light sensor by the mirror in the folded-out position. A system for transferring data by light beams includes at least one first communication module and at least one second communication module.
    Type: Application
    Filed: February 7, 2022
    Publication date: May 2, 2024
    Applicant: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Zhidong HUA, Thomas SCHÄFER, Andreas WANJEK, Michael ERMERT
  • Patent number: 11888517
    Abstract: In a method for a data transmission between first and second modules, and a system having mobile parts for performing the method: the time bases of the first and second modules are synchronized; transmitters of the first module emit a light signal pulse individually one after the other and/or in numbered order in a respective time range; the particular receiver of the second module at which the strongest receive signal occurs is determined, the particular time range and/or the number of the particular time range being determined in which the strongest receive signal occurs; the determined time range and/or the determined number is/are transmitted from the second module to the first module; and the transmitter of the first module associated with the determined time range and/or to the determined number is determined and used for the subsequent data transmission from the first module to the second module.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: January 30, 2024
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Andreas Wanjek, Steffen Storck, Zhidong Hua, Thomas Schäfer, Josef Schmidt
  • Patent number: 11845642
    Abstract: In a method for operating a system, and a system, the system includes a mobile part drivable on a driving surface, and a load carrier. The mobile part includes a radar sensor connected to a control of the mobile part. The frequency spectrum of an intermediate frequency signal is determined, and, using pattern recognition, the frequency spectrum is compared with stored pattern samples, and the result of the comparison is conveyed to the control. The control actuates actuators such as a drive and/or steering unit of the mobile part as a function of the result of the comparison.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: December 19, 2023
    Assignee: SEW-EURODRIVE GMBH & CO.KG
    Inventors: Serdal Ayhan, Andreas Wanjek, Zhidong Hua, Thomas Schäfer, Josef Schmidt
  • Patent number: 11789462
    Abstract: A system includes vehicles, a central control unit, and a stationary transceiver module connected to the central control unit via a bidirectional communications channel. Each has a transceiver module for bidirectional communication with the stationary transceiver module and/or a vehicle. The transceiver module has a controllable light source and a light sensor. The central control unit transmits driving orders to the vehicles via the stationary transceiver module. A first vehicle that is located within the spatial transmission area of the stationary transceiver module forwards a driving order to a second vehicle that is located outside the spatial transmission area of the stationary transceiver module, and the second vehicle transmits data via the first vehicle and the stationary transceiver module to the central control unit.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: October 17, 2023
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Josef Schmidt, Zhidong Hua, Thomas Schäfer
  • Patent number: 11774549
    Abstract: In a mobile part having at least one module, and a method for operating a mobile part, the mobile part is able to be moved on a driving surface, and the module includes a controllable illumination device. The illumination device is provided and/or situated in elongated form along a planar curve, in particular, a line.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 3, 2023
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Serdal Ayhan, Thomas Schäfer
  • Patent number: 11619735
    Abstract: In a method and system for position capture of a vehicle along a driving route, situated on a concrete floor having a reinforcement: the vehicle carries out a reference drive along the driving route, the vehicle records measuring points along the driving route, and each measuring point allocates a signal from the reinforcement to a position on the driving route; a reference profile of the driving route is determined based on the measuring points ascertained during the reference drive; the vehicle drives along the driving route and records further measuring points; a profile segment is determined from the further measuring points; the profile segment is uniquely allocated to a segment of the reference profile, e.g., using a correlation method; a position on the driving route is uniquely allocated to the vehicle with the aid of the profile segment allocated to the reference profile.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: April 4, 2023
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Josef Schmidt, Jürgen Böckle, Zhidong Hua, Thomas Schäfer, Andreas Wanjek
  • Publication number: 20220377215
    Abstract: A receiver for a light transmission system includes a camera having an image sensor, and a light-sensitive area of the image sensor includes a plurality of rows of light-sensitive elements. The image sensor is configured such that the light-sensitive area of the image sensor is scanned row by row or column by column. An attachment element is arranged such that light incident on the light-sensitive area of the image sensor passes through the attachment element beforehand. The attachment element has at least one lenticular region and at least one planar region.
    Type: Application
    Filed: October 1, 2020
    Publication date: November 24, 2022
    Applicant: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Zhidong HUA, Patrick RECH, Thomas SCHÄFER, Josef SCHMIDT
  • Publication number: 20220247490
    Abstract: In a method for a data transmission between first and second modules, and a system having mobile parts for performing the method: the time bases of the first and second modules are synchronized; transmitters of the first module emit a light signal pulse individually one after the other and/or in numbered order in a respective time range; the particular receiver of the second module at which the strongest receive signal occurs is determined, the particular time range and/or the number of the particular time range being determined in which the strongest receive signal occurs; the determined time range and/or the determined number is/are transmitted from the second module to the first module; and the transmitter of the first module associated with the determined time range and/or to the determined number is determined and used for the subsequent data transmission from the first module to the second module.
    Type: Application
    Filed: April 2, 2020
    Publication date: August 4, 2022
    Applicant: SEW-EURODRIVE GMBH & CO. KG
    Inventors: Andreas WANJEK, Steffen STORCK, Zhidong HUA, Thomas SCHÄFER, Josef SCHMIDT