Patents by Inventor Pietro Scafidi

Pietro Scafidi 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).

  • Use of MEMS gyroscope for compensation of accelerometer stress induced errors
    Patent number: 11473909
    Abstract: A MEMS system includes a gyroscope that generates a quadrature signal and an angular velocity signal. The MEMS system further includes an accelerometer that generates a linear acceleration signal. The quadrature signal and the linear acceleration signal are received by a processing circuitry that modifies the linear acceleration signal based on the quadrature signal to determine linear acceleration.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: October 18, 2022
    Assignee: INVENSENSE, INC.
    Inventors: Pietro Scafidi, Kevin Hughes, Daniele Ghezzi
  • Robust method for tuning of gyroscope demodulation phase
    Patent number: 11125560
    Abstract: An optimal demodulation phase for extracting an in-phase component of a MEMS gyroscope output signal is determined through a test procedure. During the test procedure, multiple different rotation rate patterns such as different directions of rotation and different rotation rates are applied to the MEMS gyroscope while the MEMS gyroscope output signal is demodulated based on demodulation phases near a predicted quadrature phase for the MEMS gyroscope. The measured gyroscope outputs are used to calculate an optimal demodulation phase for the MEM gyroscope.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: September 21, 2021
    Assignee: InvenSense, Inc.
    Inventors: Pietro Scafidi, Luca Coronato
  • USE OF MEMS GYROSCOPE FOR COMPENSATION OF ACCELEROMETER STRESS INDUCED ERRORS
    Publication number: 20210278212
    Abstract: A MEMS system includes a gyroscope that generates a quadrature signal and an angular velocity signal. The MEMS system further includes an accelerometer that generates a linear acceleration signal. The quadrature signal and the linear acceleration signal are received by a processing circuitry that modifies the linear acceleration signal based on the quadrature signal to determine linear acceleration.
    Type: Application
    Filed: August 18, 2020
    Publication date: September 9, 2021
    Inventors: Pietro Scafidi, Kevin Hughes, Daniele Ghezzi
  • ROBUST METHOD FOR TUNING OF GYROSCOPE DEMODULATION PHASE
    Publication number: 20210033396
    Abstract: An optimal demodulation phase for extracting an in-phase component of a MEMS gyroscope output signal is determined through a test procedure. During the test procedure, multiple different rotation rate patterns such as different directions of rotation and different rotation rates are applied to the MEMS gyroscope while the MEMS gyroscope output signal is demodulated based on demodulation phases near a predicted quadrature phase for the MEMS gyroscope. The measured gyroscope outputs are used to calculate an optimal demodulation phase for the MEM gyroscope.
    Type: Application
    Filed: April 10, 2020
    Publication date: February 4, 2021
    Inventors: Pietro Scafidi, Luca Coronato