Patents by Inventor Kristian Madsen

Kristian Madsen 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: 20250135685
    Abstract: The present invention relates a method of manufacturing a wind turbine blade (10) part using a preform (98). A plurality of layers are arranged within a preform mould (90) to form a stack of layers, wherein one or more of the layers is formed by an elongate fabric (70) comprising a fibre material treated with a binding agent. The elongate fabric comprises an alternating pattern of first sections of fibre material free from binding agent and second sections of fibre material treated with binding agent.
    Type: Application
    Filed: October 13, 2022
    Publication date: May 1, 2025
    Inventors: Frederik BRANDT, Kristian MADSEN, Michael KOEFOED
  • Patent number: 10263650
    Abstract: In some example implementations, there may be provided methods for beamforming calibration of active electronically steered arrays (AESA). In some implementations, one or more adders may generate a phase offset by adding phase calibration data from non-volatile memory and phase command data from static memory, and/or generate a gain offset by adding gain calibration data from the non-volatile memory and gain command data from the static memory. Further, a phase-shift circuit can modify, based on the phase offset, a phase of a first output signal, and an amplitude gain circuit can modify, based on the gain offset, an amplitude of the first output signal. In accordance with these implementations, the modified phase of the first output signal and the modified amplitude of the first output signal are provided to enable pre-calibration of the first output signal and/or a first antenna. Related systems, methods, and articles of manufacture are also described.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: April 16, 2019
    Assignee: ANOKIWAVE, INC.
    Inventors: David Warren Corman, Robert McMorrow, Andrew Street, Vipul Jain, Kristian Madsen, Robert Ian Gresham, Jonathan Comeau, Gaurav Menon, Nitin Jain
  • Patent number: 10205439
    Abstract: An apparatus for selectively providing attenuation with minimal relative phase error. A Digital Step Attenuator (DSA) is implemented on an integrated circuit (IC). Each cell of the DSA has a series compensation inductance that is introduced between an input to the cell and a resistor on the cell. The series compensation inductance allows the location of a pole present in the transfer function of the cell to be manipulated. By controlling the location of the pole in the transfer function of the DSA, the relative phase error of the cell can be controlled. In another disclosed embodiment, the capacitance of a shunt compensation capacitor is increased to manipulate a pole in the transfer function of a DSA cell.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: February 12, 2019
    Assignee: pSemi Corporation
    Inventors: Ravindranath Shrivastava, Kristian Madsen
  • Publication number: 20180234121
    Abstract: In some example implementations, there may be provided methods for beamforming calibration of active electronically steered arrays (AESA). In some implementations, one or more adders may generate a phase offset by adding phase calibration data from non-volatile memory and phase command data from static memory, and/or generate a gain offset by adding gain calibration data from the non-volatile memory and gain command data from the static memory. Further, a phase-shift circuit can modify, based on the phase offset, a phase of a first output signal, and an amplitude gain circuit can modify, based on the gain offset, an amplitude of the first output signal. In accordance with these implementations, the modified phase of the first output signal and the modified amplitude of the first output signal are provided to enable pre-calibration of the first output signal and/or a first antenna. Related systems, methods, and articles of manufacture are also described.
    Type: Application
    Filed: January 2, 2018
    Publication date: August 16, 2018
    Inventors: David Warren Corman, Robert McMorrow, Andrew Street, Vipul Jain, Kristian Madsen, Robert Ian Gresham, Jonathan Comeau, Gaurav Menon, Nitin Jain
  • Patent number: 9876514
    Abstract: In some example implementations, there may be provided methods for beamforming calibration of active electronically steered arrays (AESA). In some implementations, one or more adders may generate a phase offset by adding phase calibration data from non-volatile memory and phase command data from static memory, and/or generate a gain offset by adding gain calibration data from the non-volatile memory and gain command data from the static memory. Further, a phase-shift circuit can modify, based on the phase offset, a phase of a first output signal, and an amplitude gain circuit can modify, based on the gain offset, an amplitude of the first output signal. In accordance with these implementations, the modified phase of the first output signal and the modified amplitude of the first output signal are provided to enable pre-calibration of the first output signal and/or a first antenna. Related systems, methods, and articles of manufacture are also described.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: January 23, 2018
    Assignee: ANOKIWAVE, INC.
    Inventors: David Warren Corman, Robert McMorrow, Andrew Street, Vipul Jain, Kristian Madsen, Robert Ian Gresham, Jonathan Comeau, Gaurav Menon, Nitin Jain
  • Publication number: 20160373086
    Abstract: An apparatus for selectively providing attenuation with minimal relative phase error. A Digital Step Attenuator (DSA) is implemented on an integrated circuit (IC). Each cell of the DSA has a series compensation inductance that is introduced between an input to the cell and a resistor on the cell. The series compensation inductance allows the location of a pole present in the transfer function of the cell to be manipulated. By controlling the location of the pole in the transfer function of the DSA, the relative phase error of the cell can be controlled. In another disclosed embodiment, the capacitance of a shunt compensation capacitor is increased to manipulate a pole in the transfer function of a DSA cell.
    Type: Application
    Filed: September 2, 2016
    Publication date: December 22, 2016
    Inventors: Ravindranath Shrivastava, Kristian Madsen
  • Patent number: 9444432
    Abstract: An apparatus for selectively providing attenuation with minimal relative phase error. A Digital Step Attenuator (DSA) is implemented on an integrated circuit (IC). Each cell of the DSA has a series compensation inductance that is introduced between an input to the cell and a resistor on the cell. The series compensation inductance allows the location of a pole present in the transfer function of the cell to be manipulated. By controlling the location of the pole in the transfer function of the DSA, the relative phase error of the cell can be controlled. In another disclosed embodiment, the capacitance of a shunt compensation capacitor is increased to manipulate a pole in the transfer function of a DSA cell.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: September 13, 2016
    Assignee: Peregrine Semiconductor Corporation
    Inventors: Ravindranath Shrivastava, Kristian Madsen
  • Publication number: 20160134259
    Abstract: An apparatus for selectively providing attenuation with minimal relative phase error. A Digital Step Attenuator (DSA) is implemented on an integrated circuit (IC). Each cell of the DSA has a series compensation inductance that is introduced between an input to the cell and a resistor on the cell. The series compensation inductance allows the location of a pole present in the transfer function of the cell to be manipulated. By controlling the location of the pole in the transfer function of the DSA, the relative phase error of the cell can be controlled. In another disclosed embodiment, the capacitance of a shunt compensation capacitor is increased to manipulate a pole in the transfer function of a DSA cell.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 12, 2016
    Inventors: Ravindranath Shrivastava, Kristian Madsen
  • Publication number: 20040237386
    Abstract: The present invention relates to a production method and corresponding system for ornamental plants, by which it is possible to apply the method of drought stress advantageously to reduce cell elongation of plants grown in a slowly absorbing material such as peat moss without the use of chemical retarding agents and simultaneously to increase the growth of the plants (i.e. the increase of dry substance) through a controlled application of carbondioxide at the vicinity of the plants.
    Type: Application
    Filed: March 8, 2004
    Publication date: December 2, 2004
    Inventors: Kristian Madsen, Rune Nielsen