Patents by Inventor Amr Marzouk

Amr Marzouk 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).

  • VIBRATORY GYROSCOPE UTILIZING THE NONLINEAR MODAL INTERACTION
    Publication number: 20200011666
    Abstract: The disclosed devices utilize nonlinearly coupled modes of vibration to provide robust inertial sensors, such as gyroscopes. This actuation mechanism introduces a wider bandwidth in the sense-mode frequency response curve, and consequently enhances robustness to parameter fluctuations due to operating conditions and fabrication imperfections. The vibratory modes of the device are designed to have distinct frequencies where the drive-mode natural frequency is twice the modal frequency of the sense mode. The nonlinear modal interaction due to internal resonance can also be magnified through nonlinearity feedback. The sense mode response can be enhanced in shape, quality factor, and bandwidth by feeding back nonlinear quadratic, cubic, etc. terms.
    Type: Application
    Filed: August 30, 2019
    Publication date: January 9, 2020
    Applicant: Simon Fraser University
    Inventors: Farid Golnaraghi, Behraad Bahreyni, Amr Marzouk, Atabak Sarrafan, S. Amir Mousavi Lajimi, Oldooz Pooyanfar, Navid Noori
  • VIBRATORY GYROSCOPE UTILIZING A NONLINEAR MODAL INTERACTION
    Publication number: 20180143021
    Abstract: The disclosed devices utilize nonlinearly coupled modes of vibration to provide robust inertial sensors, such as gyroscopes. This actuation mechanism introduces a wider bandwidth in the sense-mode frequency response curve, and consequently enhances robustness to parameter fluctuations due to operating conditions and fabrication imperfections. The vibratory modes of the device are designed to have distinct frequencies where the drive-mode natural frequency is twice the modal frequency of the sense mode. The nonlinear modal interaction due to internal resonance can also be magnified through nonlinearity feedback. The sense mode response can be enhanced in shape, quality factor, and bandwidth by feeding back nonlinear quadratic, cubic, etc. terms.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 24, 2018
    Applicant: Simon Fraser University
    Inventors: Farid Golnaraghi, Behraad Behreyni, Amr Marzouk, Atabak Sarrafan, S. Amir Mousavi Lajimi, Oldooz Pooyanfar, Navid Noori