Patents by Inventor Walter Hansen

Walter Hansen 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: 12268268
    Abstract: A bicycle helmet that fits over a surface of a head of a user generally includes a segment of flexible cell structures that form a radial honeycomb matrix movable between a folded condition where each side of the segment is disposed generally parallel and an expanded condition where the radial honeycomb matrix of the segment is configured to be expanded at least partially over the head of the user and arranged radially relative to the surface of the head of the user. The bicycle helmet includes a first and second side frame disposed respectively at the first and second ends of the honeycomb matrix.
    Type: Grant
    Filed: February 24, 2023
    Date of Patent: April 8, 2025
    Assignee: Membrain Safety Solutions, LLC
    Inventors: Emerick Varga, Jack Queen, Kenneth B. Hertz, Jeffrey Jones, Isis Alexandra Shiffer, Walter Hansen
  • Publication number: 20230248105
    Abstract: A bicycle helmet that fits over a surface of a head of a user generally includes a segment of flexible cell structures that form a radial honeycomb matrix movable between a folded condition where each side of the segment is disposed generally parallel and an expanded condition where the radial honeycomb matrix of the segment is configured to be expanded at least partially over the head of the user and arranged radially relative to the surface of the head of the user. The bicycle helmet includes a first and second side frame disposed respectively at the first and second ends of the honeycomb matrix.
    Type: Application
    Filed: February 24, 2023
    Publication date: August 10, 2023
    Applicant: Membrain Safety Solutions, LLC
    Inventors: Emerick Varga, Jack Queen, Kenneth B. Hertz, Jeffrey Jones, Isis Alexandra Shiffer, Walter Hansen
  • Patent number: 11284184
    Abstract: A method of calibrating a feedback-based noise cancellation system of an ear device may involve obtaining a measured plant response of the ear device, obtaining a reference plant response value and determining a plant response variation between the reference plant response value and a value corresponding to the measured plant response. The method may involve obtaining a measured a coupler response of the ear device, obtaining a reference coupler response value and determining a coupler response variation between the reference coupler response value and a value corresponding to the measured coupler response. The method may involve determining, based at least in part on the plant response variation and the coupler response variation, a microphone signal gain correction factor and applying the microphone signal gain correction factor to ear device microphone signals that are input to a feedback loop of the feedback-based noise cancellation system.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: March 22, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Matthew Conrad Fellers, Louis D. Fielder, Douglas Walter Hansen, Joshua B. Lando, C. Phillip Brown, Rhonda J. Wilson
  • Publication number: 20210204054
    Abstract: A method of calibrating a feedback-based noise cancellation system of an ear device may involve obtaining a measured plant response of the ear device, obtaining a reference plant response value and determining a plant response variation between the reference plant response value and a value corresponding to the measured plant response. The method may involve obtaining a measured a coupler response of the ear device, obtaining a reference coupler response value and determining a coupler response variation between the reference coupler response value and a value corresponding to the measured coupler response. The method may involve determining, based at least in part on the plant response variation and the coupler response variation, a microphone signal gain correction factor and applying the microphone signal gain correction factor to ear device microphone signals that are input to a feedback loop of the feedback-based noise cancellation system.
    Type: Application
    Filed: July 29, 2019
    Publication date: July 1, 2021
    Applicant: Dolby Laboratories Licensing Corporation
    Inventors: Matthew Conrad FELLERS, Louis D. FIELDER, Douglas Walter HANSEN, Joshua B. LANDO, C. Phillip BROWN, Rhonda J. WILSON
  • Patent number: 8036414
    Abstract: This invention provides an audio speaker with improved physical safety isolation between a voice coil and other electrically live elements.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: October 11, 2011
    Inventors: John B. French, Douglas Walter Hansen
  • Patent number: 7658835
    Abstract: A method is described for the electrolysis of an aqueous solution of hydrogen chloride or alkali metal chloride in an electrolysis cell. The cell includes at least of an anode half-element and an anode, a cathode half-element and a gas diffusion electrode as the cathode, and a cation exchange membrane for separating the anode half-element and the cathode half-element. A gas containing oxygen is supplied to the cathode half-element and excess gas containing oxygen is discharged from the cathode half-element. Excess gas containing oxygen discharged from the cathode half-element is subjected to catalytic oxidation of hydrogen.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: February 9, 2010
    Assignee: Bayer MaterialScience AG
    Inventors: Fritz Gestermann, Richard Malchow, Walter Hansen, Gaby Sengstock
  • Publication number: 20080118097
    Abstract: This invention provides an audio speaker with improved physical safety isolation between a voice coil and other electrically live elements.
    Type: Application
    Filed: December 21, 2007
    Publication date: May 22, 2008
    Inventors: John B. French, Douglas Walter Hansen
  • Patent number: 7362168
    Abstract: In a first aspect, the invention provides an audio amplifier. A regulator reference signal corresponding to an input audio signal is generated by regulator reference generator. A power signal is generated corresponding to the regulator reference signal by a voltage regulator. A compensation block also uses the input signal, or a delayed version of the input signal to generate a modulation control signal. A modulator generates a modulated signal in response to the modulation control signal. An output stage combines the power signal and the modulation signal to provide an output audio signal corresponding to the input audio signal. The compensation block may be a forward compensation block configured to compensate for characteristics of the regulator reference generator or the voltage regulator or both, and possibly other components of the amplifier. In other embodiments, the compensation block may be part of a feedback compensation loop.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: April 22, 2008
    Assignee: Audera International Sales Inc.
    Inventors: John B. French, Douglas Walter Hansen
  • Patent number: 7329331
    Abstract: An electrolysis cell, suitable for the electrochemical production of chlorine from aqueous solutions of hydrogen chloride. The cell preferably comprises an anode space formed from an anode, an anode frame, and a back wall, the anode frame supporting the anode, and the anode space having an inlet and an outlet for the electrolyte, a cathode space formed from a current collector. The cell further preferably comprises a cathode frame and a back wall, the cathode frame supporting the current collector and the cathode space having an inlet and an outlet for the gas, a gas diffusion electrode arranged between anode and current collector and an cation exchange membrane arranged between anode and gas diffusion electrode, wherein the gas diffusion electrode is fixed on the current collector.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: February 12, 2008
    Assignee: Bayer MaterialScience AG
    Inventors: Andreas Bulan, Fritz Gestermann, Manfred Marre, Walter Hansen, Michael Groβholz
  • Patent number: 7128824
    Abstract: A method for the electrolysis of aqueous solutions of hydrogen chloride in order to produce chlorine, characterized in that the following process parameters are maintained for initial operation: the anode half-element is filled with a 5 to 20% strength by weight hydrochloric acid, the concentration of the hydrochloric acid is more than 5% by weight during initial operation, the volumetric flow of the hydrochloric acid through the anode half-element is set in such a way that, at the start of electrolysis, the velocity of the hydrochloric acid in the anode space is from 0.05 cm/s to 0.15 cm/s, the electrolysis is started with a current density of 0.5 to 2 kA/m2, and the current density is then increased continuously or discontinuously until the desired current density is reached.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: October 31, 2006
    Assignee: Bayer MaterialScience AG
    Inventors: Andreas Bulan, Walter Hansen, Fritz Gestermann, Michael Grossholz, Hans-Dieter Pinter
  • Publication number: 20050173257
    Abstract: An electrolysis cell, suitable for the electrochemical production of chlorine from aqueous solutions of hydrogen chloride. The cell preferably comprises an anode space formed from an anode, an anode frame, and a back wall, the anode frame supporting the anode, and the anode space having an inlet and an outlet for the electrolyte, a cathode space formed from a current collector. The cell further preferably comprises a cathode frame and a back wall, the cathode frame supporting the current collector and the cathode space having an inlet and an outlet for the gas, a gas diffusion electrode arranged between anode and current collector and an cation exchange membrane arranged between anode and gas diffusion electrode, wherein the gas diffusion electrode is fixed on the current collector.
    Type: Application
    Filed: September 19, 2002
    Publication date: August 11, 2005
    Inventors: Andreas Bulan, Fritz Gestermann, Manfred Marre, Walter Hansen, Michael Grossholz
  • Publication number: 20050056549
    Abstract: A method is described for the electrolysis of an aqueous solution of hydrogen chloride or alkali metal chloride in an electrolysis cell. The cell includes at least of an anode half-element and an anode, a cathode half-element and a gas diffusion electrode as the cathode, and a cation exchange membrane for separating the anode half-element and the cathode half-element. A gas containing oxygen is supplied to the cathode half-element and excess gas containing oxygen is discharged from the cathode half-element. Excess gas containing oxygen discharged from the cathode half-element is subjected to catalytic oxidation of hydrogen.
    Type: Application
    Filed: September 10, 2004
    Publication date: March 17, 2005
    Applicant: Bayer MaterialScience AG
    Inventors: Fritz Gestermann, Richard Malchow, Walter Hansen, Gaby Sengstock
  • Publication number: 20040245117
    Abstract: The invention relates to a method for the electrolysis of aqueous solutions of hydrogen chloride, for producing chlorine by means of a gas-diffusion electrode in compliance with set operating parameters.
    Type: Application
    Filed: April 23, 2004
    Publication date: December 9, 2004
    Inventors: Andreas Bulan, Walter Hansen, Fritz Gestermann, Michael Grossholz, Hans-Dieter Pinter
  • Patent number: 4803497
    Abstract: A laser diode imagesetter having multiple resolution operating modes, includes means for stabilizing the optical output power from the semiconductor laser diode during the scan trace interval across a photosensitive material so as to maintain a high extinction ratio for the laser diode even when its driving current is changed to a different level in order to operate the imagesetter at a different resolution mode.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: February 7, 1989
    Assignee: Dr.-Ing. Rudolf Hell GmbH
    Inventors: John A. Kennedy, Jr., Walter Hansen
  • Patent number: 4027313
    Abstract: A photocomposing machine and font strip therefor are described which allow type designers to have the flexibility to design typographical characters which are kerned. The photocomposing machine is able to automatically kern those characters which are designed to be kerned. The automatic kerning is accomplished by intentionally offsetting each character's placement on the font strip to the left with respect to the machine's aperture, and providing an optical system in the photocomposing machine which intentionally offsets the projection of the font strip through the aperture of the machine to the right, thereby cancelling the offset of unkerned characters. Kerned characters are placed to the right on the font strip in order to allow the machine's optical system offset to overlap the image of kerned characters on the space normally reserved for the next character.
    Type: Grant
    Filed: June 18, 1975
    Date of Patent: May 31, 1977
    Assignee: Eltra Corporation
    Inventors: Herbert Klepper, Walter Hansen, Joel S. Harris, Farrokh Golesorkhi