Patents by Inventor Wilhelm KEUSGEN
Wilhelm KEUSGEN 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).
-
Patent number: 11952888Abstract: A coupling element connectable to a string of one or more pipes, for example, a drill string of one or more pipes or drill pipes is provided. The coupling element is configured to excite, responsive to a data signal fed to the coupling element, an electromagnetic wave in the string. The coupling element comprises a feed portion at a first end of the coupling element, the feed portion to receive the data signal, a first electrically conductive portion extending from the feed portion towards a second end of the coupling element, the second end to be connected to the string for forming an electrically conductive connection between the first electrically conductive portion and the string, and a second electrically conductive portion extending from the feed portion towards the second end of the coupling element. The first and second electrically conductive portions are arranged so as to define a waveguide. The waveguide expands in a direction from the first end towards the second end.Type: GrantFiled: March 20, 2020Date of Patent: April 9, 2024Assignee: Herrenknecht AGInventors: Wilhelm Keusgen, Mathis Schmieder, Frederic Seng, Alexander Frey, Felix Weber
-
Publication number: 20240040648Abstract: An apparatus for a wireless communication network communicates with one or more entities in the wireless communication network using a plurality of different communication channels. The plurality of communication channels includes at least a first communication channel and a second communication channel. The apparatus transmits on one of the first and second communication channels and, at the same time, receives on the other one of the first and second communication channels. For exploiting a reciprocity of the first and second communication channels, the apparatus switch between simultaneously transmitting over the first communication channel and receiving over the second communication channel, and simultaneously transmitting over the second communication channel and receiving over the first communication channel.Type: ApplicationFiled: October 5, 2023Publication date: February 1, 2024Inventors: Ramez ASKAR, Thomas HAUSTEIN, Wilhelm KEUSGEN, Michael PETER
-
Patent number: 11755037Abstract: Embodiments provide an unmanned aerial vehicle comprising a receiver and a position determiner. The receiver is configured to receive two periodic wideband signals transmitted from two spaced apart base stations of a navigation system for unmanned aerial vehicles, wherein the two periodic wideband signals are time-synchronized. The position determiner is configured to determine a position of the unmanned aerial vehicle relative to the two base stations based on a difference between reception times of the two periodic wideband signals and based on reception intensities of the two periodic wideband signals.Type: GrantFiled: August 1, 2019Date of Patent: September 12, 2023Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Kei Sakaguchi, Kim Mahler, Thomas Haustein, Wilhelm Keusgen
-
Patent number: 11677490Abstract: Disclosed is a radio frequency communication and jamming device configured for physically secured friendly radio frequency communication and for jamming hostile radio frequency communication, the radio frequency communication and jamming device including: an antenna arrangement having a transmission section for transmitting outgoing signals and a receiving section for receiving incoming signals; a receiver device configured for extracting an incoming information signal from the incoming signals received via the receiving section of the antenna arrangement in a receiving frequency band; a jamming generator configured for generating at least one jamming signal for jamming at least one jamming frequency band, wherein the jamming signal is transmitted as one of the outgoing signals via the transmission section, wherein the at least one jamming frequency band includes the receiving frequency band; and a self-interference cancellation device configured for cancelling portions of the at least one jamming signal in tType: GrantFiled: June 10, 2021Date of Patent: June 13, 2023Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.Inventors: Ramez Askar, Wilhelm Keusgen
-
Patent number: 11533074Abstract: A full-duplex transceiver apparatus includes a plurality of antennas, the plurality of antennas including a first antenna and a second antenna, a first transmit front-end for feeding the first antenna, a first receive front-end for receiving a remotely-generated signal via the second antenna, and a matching network between the plurality of antennas and the transmit and receive front-ends for feeding the first antenna from the first transmit front-end and for delivering the remotely-generated signal from the second antenna to the first receive front-end. The matching network is a lossless reciprocal network causes a cancellation of the self-interference at the second antenna. The lossless reciprocal network has a first antenna port connected to the first antenna, a second antenna port connected to the second antenna, a first front-end port connected to the first transmit front-end, and a second front-end port connected the first receive front-end.Type: GrantFiled: April 16, 2020Date of Patent: December 20, 2022Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Ramez Askar, Wilhelm Keusgen, Thomas Haustein
-
Publication number: 20220251947Abstract: A coupling element connectable to a string of one or more pipes, for example, a drill string of one or more pipes or drill pipes is provided. The coupling element is configured to excite, responsive to a data signal fed to the coupling element, an electromagnetic wave in the string. The coupling element comprises a feed portion at a first end of the coupling element, the feed portion to receive the data signal, a first electrically conductive portion extending from the feed portion towards a second end of the coupling element, the second end to be connected to the string for forming an electrically conductive connection between the first electrically conductive portion and the string, and a second electrically conductive portion extending from the feed portion towards the second end of the coupling element. The first and second electrically conductive portions are arranged so as to define a waveguide. The waveguide expands in a direction from the first end towards the second end.Type: ApplicationFiled: March 20, 2020Publication date: August 11, 2022Inventors: Wilhelm KEUSGEN, Mathis SCHMIEDER, Felix WEBER, Alexander FREY, Frederic SENG
-
Publication number: 20220231738Abstract: A device includes a wireless interface configured for wirelessly transmitting a signal to a receiver; and a precoder unit configured for obtaining a first data signal to be transmitted and a second data signal to be transmitted; and for performing a first multipath-precoding of the first data signal according to a first set of paths between the device and the receiver to obtain a first precoded signal; and for performing a second multipath-precoding of the second data signal according to a second set of paths between the device and the receiver to obtain and a second precoded signal; wherein the precoder unit is configured for generating the first precoded signal and the second precoded signal such that the second precoded signal is delayed with respect to the first precoded signal at the receiver. The device is configured for transmitting the first precoded signal and the second precoded signal.Type: ApplicationFiled: April 7, 2022Publication date: July 21, 2022Inventors: Thomas HAUSTEIN, Lars THIELE, Martin KURRAS, Baris GÖKTEPE, Cornelius HELLGE, Thomas FEHRENBACH, Wilhelm KEUSGEN, Hanguang WU
-
Publication number: 20220217566Abstract: An apparatus configured for wirelessly communicating in a wireless communication network includes a wireless interface arrangement having a signal maintenance capability to separate at least one data stream. The apparatus is configured for wirelessly transmitting, to a receiving apparatus, a capability signal having a capability information indicating the signal maintenance capability.Type: ApplicationFiled: February 14, 2022Publication date: July 7, 2022Inventors: Paul Simon Holt LEATHER, Thomas HAUSTEIN, Ramez ASKAR, Wilhelm KEUSGEN, Leszek RASCHKOWSKI, Mathis SCHMIEDER
-
Publication number: 20220085863Abstract: An apparatus includes an antenna array having a plurality of antennas. The antenna array is configured to receive a multi-carrier signal from a multi-antenna transmitter over a radio channel. The multi-carrier signal has at least two subcarriers, and each subcarrier is mapped at the transmitter to a respective subcarrier-beamformer. The respective subcarrier-beamformers has non-identical null and beam cone directions. A processor is configured to identify a communication direction for a radio signal communication between the apparatus and the transmitter. The communication direction is identified based on one or more specular path components of the radio channel which are related to a null or to a maximum of a subcarrier-beamformer.Type: ApplicationFiled: November 29, 2021Publication date: March 17, 2022Inventors: Thomas HAUSTEIN, Lars THIELE, Wilhelm KEUSGEN, Marcus GROSSMANN, Markus LANDMANN
-
Patent number: 11190265Abstract: An apparatus includes an antenna array having a plurality of antennas. The antenna array is configured to receive a multi-carrier signal from a multi-antenna transmitter over a radio channel. The multi-carrier signal has at least two subcarriers, and each subcarrier is mapped at the transmitter to a respective subcarrier-beamformer. The respective subcarrier-beamformers has non-identical null and beam cone directions. A processor is configured to identify a communication direction for a radio signal communication between the apparatus and the transmitter. The communication direction is identified based on one or more specular path components of the radio channel which are related to a null or to a maximum of a subcarrier-beamformer.Type: GrantFiled: October 28, 2019Date of Patent: November 30, 2021Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Thomas Haustein, Lars Thiele, Wilhelm Keusgen, Marcus Grossmann, Markus Landmann
-
Publication number: 20210306088Abstract: Disclosed is a radio frequency communication and jamming device configured for physically secured friendly radio frequency communication and for jamming hostile radio frequency communication, the radio frequency communication and jamming device including: an antenna arrangement having a transmission section for transmitting outgoing signals and a receiving section for receiving incoming signals; a receiver device configured for extracting an incoming information signal from the incoming signals received via the receiving section of the antenna arrangement in a receiving frequency band; a jamming generator configured for generating at least one jamming signal for jamming at least one jamming frequency band, wherein the jamming signal is transmitted as one of the outgoing signals via the transmission section, wherein the at least one jamming frequency band includes the receiving frequency band; and a self-interference cancellation device configured for cancelling portions of the at least one jamming signal in tType: ApplicationFiled: June 10, 2021Publication date: September 30, 2021Inventors: Ramez ASKAR, Wilhelm KEUSGEN
-
Patent number: 11038619Abstract: Disclosed is a radio frequency communication and jamming device configured for physically secured friendly radio frequency communication and for jamming hostile radio frequency communication, the radio frequency communication and jamming device including: an antenna arrangement having a transmission section for transmitting outgoing signals and a receiving section for receiving incoming signals; a receiver device configured for extracting an incoming information signal from the incoming signals received via the receiving section of the antenna arrangement in a receiving frequency band; a jamming generator configured for generating at least one jamming signal for jamming at least one jamming frequency band, wherein the jamming signal is transmitted as one of the outgoing signals via the transmission section, wherein the at least one jamming frequency band includes the receiving frequency band; and a self-interference cancellation device configured for cancelling portions of the at least one jamming signal in tType: GrantFiled: December 4, 2019Date of Patent: June 15, 2021Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.Inventors: Ramez Askar, Wilhelm Keusgen
-
Patent number: 10978809Abstract: A reflector includes a substrate, a plurality of reflector structures arranged on or in the substrate and configured to reflect an incident electromagnetic wave. The reflector further includes an electronic circuit that is arranged at, on or in the substrate and configured to control an antenna when the antenna is connected to the electronic circuit.Type: GrantFiled: August 22, 2017Date of Patent: April 13, 2021Inventors: Tristan Visentin, Wilhelm Keusgen, Richard Weiler
-
Publication number: 20210051660Abstract: A wireless communication network for communicating information between a base station and a plurality of UEs is described. In accordance with a first aspect the base station concurrently transmits to and receives from a plurality of UEs using a spatial diversity and a frequency division multiplexing, FDM, communication. In accordance with a second aspect the base station concurrently transmits to and receives from a plurality of UEs using a frequency division multiplexing, FDM, communication without spatial diversity. In accordance with a third aspect the base station concurrently transmits to and receives from a plurality of UEs using a spatial diversity and a time division multiplexing, TDM, communication. In accordance with a fourth aspect the base station concurrently transmits to and receives from a plurality of UEs a time division multiplexing, TDM, communication without spatial diversity, and wherein the UEs employ beamforming for inter-UE-interference suppression.Type: ApplicationFiled: November 3, 2020Publication date: February 18, 2021Inventors: Ramez ASKAR, Wilhelm KEUSGEN, Thomas HAUSTEIN
-
Publication number: 20200244301Abstract: A full-duplex transceiver apparatus includes a plurality of antennas, the plurality of antennas including a first antenna and a second antenna, a first transmit front-end for feeding the first antenna, a first receive front-end for receiving a remotely-generated signal via the second antenna, and a matching network between the plurality of antennas and the transmit and receive front-ends for feeding the first antenna from the first transmit front-end and for delivering the remotely-generated signal from the second antenna to the first receive front-end. The matching network is a lossless reciprocal network causes a cancellation of the self-interference at the second antenna. The lossless reciprocal network has a first antenna port connected to the first antenna, a second antenna port connected to the second antenna, a first front-end port connected to the first transmit front-end, and a second front-end port connected the first receive front-end.Type: ApplicationFiled: April 16, 2020Publication date: July 30, 2020Inventors: Ramez ASKAR, Wilhelm KEUSGEN, Thomas HAUSTEIN
-
Patent number: 10651795Abstract: A method and a device for amplifying an input signal include a power amplifier for amplifying a binary input signal, a modulation device for generating the binary input signal on the basis of the input signal, the input signal being a complex-valued signal and the binary input signal being a real-valued signal, the modulation device including an adding device configured to add the complex-valued input signal to a complex-valued carrier signal of a predefined frequency and to thus generate a resulting complex-valued signal, and the modulation device including a combination device connected downstream from the adding device and configured to generate the real-valued binary input signal from the real part and the imaginary part of the resulting complex-valued signal by combining the real part and the imaginary part of the resulting complex-valued signal.Type: GrantFiled: September 20, 2017Date of Patent: May 12, 2020Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Hung-Anh Nguyen, Wilhelm Keusgen
-
Publication number: 20200106545Abstract: Disclosed is a radio frequency communication and jamming device configured for physically secured friendly radio frequency communication and for jamming hostile radio frequency communication, the radio frequency communication and jamming device including: an antenna arrangement having a transmission section for transmitting outgoing signals and a receiving section for receiving incoming signals; a receiver device configured for extracting an incoming information signal from the incoming signals received via the receiving section of the antenna arrangement in a receiving frequency band; a jamming generator configured for generating at least one jamming signal for jamming at least one jamming frequency band, wherein the jamming signal is transmitted as one of the outgoing signals via the transmission section, wherein the at least one jamming frequency band includes the receiving frequency band; and a self-interference cancellation device configured for cancelling portions of the at least one jamming signal in tType: ApplicationFiled: December 4, 2019Publication date: April 2, 2020Inventors: Ramez ASKAR, Wilhelm KEUSGEN
-
Publication number: 20200059289Abstract: An apparatus includes an antenna array having a plurality of antennas. The antenna array is configured to receive a multi-carrier signal from a multi-antenna transmitter over a radio channel. The multi-carrier signal has at least two subcarriers, and each subcarrier is mapped at the transmitter to a respective subcarrier-beamformer. The respective subcarrier-beamformers has non-identical null and beam cone directions. A processor is configured to identify a communication direction for a radio signal communication between the apparatus and the transmitter. The communication direction is identified based on one or more specular path components of the radio channel which are related to a null or to a maximum of a subcarrier-beamformer.Type: ApplicationFiled: October 28, 2019Publication date: February 20, 2020Inventors: Thomas HAUSTEIN, Lars THIELE, Wilhelm KEUSGEN, Marcus GROSSMANN, Markus LANDMANN
-
Publication number: 20190354117Abstract: Embodiments provide an unmanned aerial vehicle comprising a receiver and a position determiner. The receiver is configured to receive two periodic wideband signals transmitted from two spaced apart base stations of a navigation system for unmanned aerial vehicles, wherein the two periodic wideband signals are time-synchronized. The position determiner is configured to determine a position of the unmanned aerial vehicle relative to the two base stations based on a difference between reception times of the two periodic wideband signals and based on reception intensities of the two periodic wideband signals.Type: ApplicationFiled: August 1, 2019Publication date: November 21, 2019Inventors: Kei SAKAGUCHI, Kim MAHLER, Thomas HAUSTEIN, Wilhelm KEUSGEN
-
Patent number: 10312586Abstract: An apparatus includes a fully integrated self-contained radio device including an antenna and an antenna element. The radio device and the antenna element are arranged such that a radio signal emitted by the antenna of the radio device is amplified in at least one predefined spatial direction.Type: GrantFiled: August 23, 2017Date of Patent: June 4, 2019Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Richard Weiler, Wilhelm Keusgen