Patents by Inventor Steffen Hahn

Steffen Hahn 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: 10804943
    Abstract: A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: October 13, 2020
    Assignee: Kumu Networks, Inc.
    Inventors: Wilhelm Steffen Hahn, Alfred Riddle, Ernie Landi, Dai Sieh, Jung-Il Choi, Mayank Jain
  • Publication number: 20200247533
    Abstract: A method for detecting damages to a rotor of an aircraft, where the aircraft comprises actuators for active vibration reduction, may comprising one or more of the following steps: determining actuator variables in a reference flight of the aircraft; plotting the actuator variables of respective data range tiles determined in the reference flight of the aircraft in first coordinates of a coordinate system, wherein the coordinate system contains numerous data range tiles; obtaining the number of actuator variables in the reference flight of the aircraft that are located in each data range tile; eliminating the data range tiles that have a number of actuator variables lying below a limit value for this in the reference flight of the aircraft, by means of which a reference flight signature is created; and determining actuator variables for a flight-specific signature.
    Type: Application
    Filed: June 22, 2018
    Publication date: August 6, 2020
    Applicant: ZF Friedrichshafen AG
    Inventors: Steffen Hahn, Jan Haar, Uwe Arnold
  • Publication number: 20200247916
    Abstract: The present invention relates to the use of hydrophilic compounds of the formula I as photopolymerisation initiators of polymerisable substance mixtures which comprise unsaturated compounds, or for the photochemical crosslinking of linear polymers, in which the parameters have the meaning indicated in Claim 1, to sealants for liquid-crystal displays which comprise the hydrophilic photoinitiators, to novel hydrophilic photoinitiators of the formula I, and to the liquid-crystal displays produced using these sealants.
    Type: Application
    Filed: October 5, 2016
    Publication date: August 6, 2020
    Applicant: Merck Patent GmbH
    Inventors: Peer KIRSCH, Qiong TONG, Alexander HAHN, Leo WEEGELS, Steffen GNAUCK, Sven SCHUEPFER, Peter LEONHARD, Claudia ENDERS
  • Publication number: 20200204206
    Abstract: A system for interference mitigation includes: a first transmit coupler; a receive-band noise cancellation system; a first transmit-band filter; a second transmit coupler; a first receive coupler; a transmit-band noise cancellation system; a first receive-band filter; and a second receive coupler.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Inventors: Jung-il Choi, Mayank Jain, Wilhelm Steffen Hahn, Alfred Riddle
  • Patent number: 10643941
    Abstract: A semiconductor device and a method of making the same. The device includes a semiconductor substrate provided in a chip-scale package (CSP). The device also includes a plurality of contacts provided on a major surface of the substrate. The device further includes an electrically floating metal layer forming an ohmic contact on a backside of the semiconductor substrate. The device is operable to conduct a current that passes through the substrate from a first of said plurality of contacts to a second of said plurality of contacts via the metal layer on the backside.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: May 5, 2020
    Assignee: Nexperia B.V.
    Inventors: Zhihao Pan, Friedrich Hahn, Steffen Holland, Olaf Pfennigstorf, Jochen Wynants, Hans-Martin Ritter
  • Patent number: 10623047
    Abstract: A system for interference mitigation includes: a first transmit coupler; a receive-band noise cancellation system; a first transmit-band filter; a second transmit coupler; a first receive coupler; a transmit-band noise cancellation system; a first receive-band filter; and a second receive coupler.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: April 14, 2020
    Assignee: Kumu Networks, Inc.
    Inventors: Jung-il Choi, Mayank Jain, Wilhelm Steffen Hahn, Alfred Riddle
  • Publication number: 20200044753
    Abstract: A system for enhancing isolation in coexisting time-division duplexed (TDD) transceivers includes: a blocker canceller that transforms a transmit signal of a TDD transceiver into a blocker cancellation signal configured to remove transmit-band interference in a receive signal; a first filter that filters the blocker cancellation signal; a second filter that filters the transmit signal; and a transmit-noise canceller that transforms the filtered transmit signal into a transmit noise cancellation signal configured to remove receive-band interference in the receive signal.
    Type: Application
    Filed: October 15, 2019
    Publication date: February 6, 2020
    Inventors: Mayank Jain, Wilhelm Steffen Hahn, Jung-II Choi, Jeffrey Mehlman
  • Publication number: 20200007304
    Abstract: A system for enhanced linearity mixing includes an input-source signal coupler; a local oscillator (LO) signal coupler; a primary mixer that combines, via heterodyning, the primary-mixer-input signal and the primary-mixer-LO signal to generate a primary-mixer-output signal; a distortion-source mixer that combines, via heterodyning, the distortion-mixer-input signal and the distortion-mixer-LO signal to generate a distortion-mixer-output signal; and an output signal coupler that combines the primary-mixer-output signal and the distortion-mixer-output signal to generate an output signal with reduced non-linearity.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Inventors: Wilhelm Steffen Hahn, Alfred Riddle, Ernie Landi
  • Publication number: 20190372611
    Abstract: A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 5, 2019
    Inventors: Wilhelm Steffen Hahn, Alfred Riddle, Ernie Landi, Dai Sieh, Jung-Il Choi, Mayank Jain
  • Patent number: 10491313
    Abstract: A system for enhancing isolation in coexisting time-division duplexed (TDD) transceivers includes: a blocker canceller that transforms a transmit signal of a TDD transceiver into a blocker cancellation signal configured to remove transmit-band interference in a receive signal; a first filter that filters the blocker cancellation signal; a second filter that filters the transmit signal; and a transmit-noise canceller that transforms the filtered transmit signal into a transmit noise cancellation signal configured to remove receive-band interference in the receive signal.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: November 26, 2019
    Assignee: Kumu Networks, Inc.
    Inventors: Mayank Jain, Wilhelm Steffen Hahn, Jung-Il Choi, Jeffrey Mehlman
  • Patent number: 10486759
    Abstract: A method is disclosed for conveying a vehicle component to a vehicle body with a robot device in an assembly station. The assembly station includes a provisioning position in which the vehicle component is provisioned for conveying to the vehicle body. The assembly station further includes a final assembly location at which the vehicle component is final-assembled on the vehicle body. The robot device grips the vehicle component in the provisioning position and conveys the vehicle component to the final assembly location.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: November 26, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Sascha Hahn, Uwe Hüttenmüller, Uwe Leers, Steve Geinitz, Manuela Patz, Dirk Klee, Steffen Lehmann, Norbert Possner
  • Patent number: 10454444
    Abstract: An analog time delay filter circuit including a first delay circuit block arranged in a modular layout, having a first time delay filter, a first input, a first output, and first and second pass-throughs; and a second delay circuit block arranged in the same modular layout, having a second time delay filter, a second input, a second output, and third and fourth pass-throughs.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: October 22, 2019
    Assignee: Kumu Networks, Inc.
    Inventors: Wilhelm Steffen Hahn, Alfred Riddle, Ernie Landi
  • Patent number: 10447228
    Abstract: A multilayer fringe capacitor includes first and second interdigitated capacitor electrodes, both parallel to and intersecting a first planar surface; third and fourth interdigitated capacitor electrodes, the first and second electrodes parallel to and separated by a non-zero distance from the third and fourth electrodes; a first set of coupling vias that electrically couples the first electrode to the third electrode; and a second set of coupling vias that electrically couples the second electrode to the fourth electrode.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: October 15, 2019
    Assignee: Kumu Networks, Inc.
    Inventors: Wilhelm Steffen Hahn, Alfred Riddle, Ernie Landi
  • Patent number: 10425115
    Abstract: A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: September 24, 2019
    Assignee: Kumu Networks, Inc.
    Inventors: Wilhelm Steffen Hahn, Alfred Riddle, Ernie Landi, Dai Sieh, Jung-Il Choi, Mayank Jain
  • Publication number: 20190268029
    Abstract: A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales the transmit signals to generate first scaled transmit signals; a second analog vector modulator that scales delayed transmit signals to generate second scaled transmit signals; a frequency upconverter that recomposes the scaled transmit signals into an RF self-interference cancellation signal; and a receive coupler that that combines the RF self-interference cancellation signal with a RF receive signal to reduce self-interference.
    Type: Application
    Filed: February 27, 2019
    Publication date: August 29, 2019
    Inventors: Wilhelm Steffen Hahn, Alfred Riddle, Ernie Landi, Dai Sieh, Jung-Il Choi, Mayank Jain
  • Patent number: 10382085
    Abstract: A system for wired analog self-interference cancellation includes a coarse delayer that delays a sampled RF transmit signal by a first delay amount; a frequency downconverter that downconverts the sampled RF transmit signal to IF; a first canceller tap group comprising a first per-tap-group delayer, a first sampling coupler, a first per-tap delayer, and first and second analog vector modulators that generates an IF self-interference cancellation signal; a frequency upconverter that upconverts the IF self-interference cancellation signal to RF; and a receive coupler that combines the RF self-interference cancellation signal with the RF receive signal, reducing self-interference.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 13, 2019
    Assignee: Kumu Networks, Inc.
    Inventors: Jung-Il Choi, Wilhelm Steffen Hahn, Mayank Jain
  • Publication number: 20190233093
    Abstract: The invention relates to a method for predicting vibrations in an aircraft, wherein the aircraft comprises an active system for reducing main and/or tail rotor vibrations, in particular length-adjustable control rods and/or trim tabs, wherein the method comprises the steps: estimating a first amplitude or frequency, resulting from adjustments by the active system for actively reducing vibrations and the respective sensitivities of the aircraft depending on the flying state, by means of a statistical mathematical method in a first step 110 at a first point in time t1; recording a second amplitude or frequency by means of at least one sensor in a second step 120 at a second point in time t2; generating a pseudo-vibration profile by means of the first amplitude or frequency and the second vibrations in a third step 130 at a third point in time t3; comparing the pseudo-vibration profile with a predefined target vibration profile of the aircraft in a fourth step 140 at a fourth point in time t4; outputting a s
    Type: Application
    Filed: August 3, 2017
    Publication date: August 1, 2019
    Applicant: ZF Friedrichshafen AG
    Inventors: Steffen Hahn, Andre Hausberg
  • Publication number: 20190181908
    Abstract: A system for interference mitigation includes: a first transmit coupler; a receive-band noise cancellation system; a first transmit-band filter; a second transmit coupler; a first receive coupler; a transmit-band noise cancellation system; a first receive-band filter; and a second receive coupler.
    Type: Application
    Filed: January 15, 2019
    Publication date: June 13, 2019
    Inventors: Jung-il Choi, Mayank Jain, Wihelm Steffen Hahn, Alfred Riddle
  • Publication number: 20190158193
    Abstract: A system for enhancing isolation in coexisting time-division duplexed (TDD) transceivers includes: a blocker canceller that transforms a transmit signal of a TDD transceiver into a blocker cancellation signal configured to remove transmit-band interference in a receive signal; a first filter that filters the blocker cancellation signal; a second filter that filters the transmit signal; and a transmit-noise canceller that transforms the filtered transmit signal into a transmit noise cancellation signal configured to remove receive-band interference in the receive signal.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 23, 2019
    Inventors: Mayank Jain, Wilhelm Steffen Hahn, Jung-II Choi, Jeffrey Mehlman
  • Publication number: 20190149186
    Abstract: A system for wired analog self-interference cancellation includes a coarse delayer that delays a sampled RF transmit signal by a first delay amount; a frequency downconverter that downconverts the sampled RF transmit signal to IF; a first canceller tap group comprising a first per-tap-group delayer, a first sampling coupler, a first per-tap delayer, and first and second analog vector modulators that generates an IF self-interference cancellation signal; a frequency upconverter that upconverts the IF self-interference cancellation signal to RF; and a receive coupler that combines the RF self-interference cancellation signal with the RF receive signal, reducing self-interference.
    Type: Application
    Filed: December 21, 2018
    Publication date: May 16, 2019
    Inventors: Jung-Il Choi, Wilhelm Steffen Hahn, Mayank Jain