Patents by Inventor MATHIEU GRATUZE

MATHIEU GRATUZE 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).

  • Pulse shaping methods for non-linear acoustic piezoelectric transducers
    Patent number: 12703003
    Abstract: Piezoelectric Micromachined Ultrasonic Transducers (PMUTs) exploiting microelectromechanical systems (MEMS) support monolithic integration with silicon based CMOS electronic thereby leveraging the cost benefits of large wafer automated silicon processing. However, nonlinear behaviour in MEMS resonators compromises their performance in some applications whilst being desired in other applications. Accordingly, the inventors have established techniques for the characterisation of the nonlinear behaviour allowing designers to tailor the design and manufacturing of the MEMS resonators to particular applications. Further, there are provided drive schemes for these MEMS resonators for improved performance with respect to the generation of pulses from such MEMS resonators.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: August 11, 2026
    Assignee: ÉCOLE DE TECHNOLOGIE SUPÉRIEURE
    Inventors: Frederic Nabki, Mathieu Gratuze
  • PULSE SHAPING METHODS FOR NON-LINEAR ACOUSTIC PIEZOELECTRIC TRANSDUCERS
    Publication number: 20240416384
    Abstract: Piezoelectric Micromachined Ultrasonic Transducers (PMUTs) exploiting microelectromechanical systems (MEMS) support monolithic integration with silicon based CMOS electronic thereby leveraging the cost benefits of large wafer automated silicon processing. However, nonlinear behaviour in MEMS resonators compromises their performance in some applications whilst being desired in other applications. Accordingly, the inventors have established techniques for the characterisation of the nonlinear behaviour allowing designers to tailor the design and manufacturing of the MEMS resonators to particular applications. Further, there are provided drive schemes for these MEMS resonators for improved performance with respect to the generation of pulses from such MEMS resonators.
    Type: Application
    Filed: October 14, 2022
    Publication date: December 19, 2024
    Inventors: FREDERIC NABKI, MATHIEU GRATUZE