Patents by Inventor Filippo David

Filippo David 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: 20240120894
    Abstract: An analog front-end architecture for a capacitive pressure sensor with a low-noise amplifier unit for amplification of sensor signals from the sensor. The amplifier unit includes first and second integrator units for integrating charges injected into input terminals of the amplifier unit and for outputting integrated charges to output terminals of the amplifier unit, a feedback unit, and a startup unit. The feedback unit reinjects integrated charges from the integrator unit into the input terminals of the amplifier unit. The startup unit is switchable between first and second switching states and is configured, in the first switching state, to route the charges injected into the input terminals past the first integrator unit into the second integrator unit and from the second integrator unit into the feedback unit, and, in the second switching state, to route charges injected into the input terminals directly into the first integrator unit.
    Type: Application
    Filed: December 13, 2021
    Publication date: April 11, 2024
    Inventors: Domenico Tangredi, Filippo David, Gabriele Cazzaniga, Manuel Salvatore Santoro, Massimiliano Musazzi
  • Patent number: 11918662
    Abstract: Provided herein are certain compounds and imaging agents useful for detecting a disease or condition associated with protein aggregation, compositions thereof, and methods of their use.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: March 5, 2024
    Assignee: CHDI Foundation, Inc.
    Inventors: Longbin Liu, Matthew Lee, Celia Dominguez, Peter David Johnson, Catherine Jane Greenaway, Kanika Khurana, Matthew Robert Mills, Filippo Rota
  • Publication number: 20240019320
    Abstract: An analog frontend architecture for a capacitive pressure sensor. The analog frontend architecture includes a low-noise amplifier unit for low-noise amplification of sensor signals of the capacitive pressure sensor, the low-noise amplifier unit including a first integrator unit and a second integrator unit, the first integrator unit being connected to input terminals of the low-noise amplifier unit, being designed as a boxcar integrator, and being configured to amplify sensor signals of the capacitive pressure sensor according to the boxcar integration technique, and the second integrator unit being connected to output terminals of the low-noise amplifier unit and being configured to integrate the amplified voltage signals of the first integrator unit.
    Type: Application
    Filed: November 16, 2021
    Publication date: January 18, 2024
    Inventors: Domenico Tangredi, Filippo David, Gabriele Cazzaniga, Manuel Salvatore Santoro, Massimiliano Musazzi
  • Patent number: 10484798
    Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane, provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane, provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: November 19, 2019
    Assignees: STMICROELECTRONICS S.R.L., OMRON CORPORATION
    Inventors: Takashi Kasai, Shobu Sato, Yuki Uchida, Sebastiano Conti, Igino Padovani, Filippo David
  • Patent number: 10405107
    Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: September 3, 2019
    Assignees: STMicroelectronics S.R.L., Omron Corporation
    Inventors: Takashi Kasai, Shobu Sato, Yuki Uchida, Igino Padovani, Filippo David, Sebastiano Conti
  • Patent number: 10257617
    Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 9, 2019
    Assignees: STMicroelectronics S.R.L., Omron Corporation
    Inventors: Takashi Kasai, Shobu Sato, Yuki Uchida, Igino Padovani, Filippo David, Sebastiano Conti
  • Publication number: 20180295454
    Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane, provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane, provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.
    Type: Application
    Filed: February 23, 2018
    Publication date: October 11, 2018
    Inventors: Takashi Kasai, Shobu Sato, Yuki Uchida, Sebastiano Conti, Igino Padovani, Filippo David
  • Publication number: 20180176693
    Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.
    Type: Application
    Filed: November 15, 2017
    Publication date: June 21, 2018
    Inventors: Takashi KASAI, Shobu SATO, Yuki UCHIDA, Igino PADOVANI, Filippo DAVID, Sebastiano CONTI
  • Patent number: 9843868
    Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: December 12, 2017
    Assignees: STMICROELECTRONICS S.R.L., Omron Corporation
    Inventors: Takashi Kasai, Shobu Sato, Yuki Uchida, Igino Padovani, Filippo David, Sebastiano Conti
  • Patent number: 9689889
    Abstract: Various embodiments of the invention allow to reduce unwanted high-Q oscillations in capacitive MEMS sensors. In certain embodiments, stabilization of high-Q MEMS sensors is accomplished through a dedicated ultra-low power circuit that provides a bias voltage to one or more sensor electrodes during an OFF-phase. The bias voltage forces a balance condition that eliminates perturbations and enables smooth transitions that, ultimately, result in shorter sensor settling times.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: June 27, 2017
    Inventors: Roberto Casiraghi, Igino Padovani, Giorgio Massimiliano Membretti, Filippo David
  • Patent number: 9654071
    Abstract: Described herein is a preamplifier circuit for a capacitive acoustic transducer provided with a MEMS detection structure that generates a capacitive variation as a function of an acoustic signal to be detected, starting from a capacitance at rest; the preamplifier circuit is provided with an amplification stage that generates a differential output signal correlated to the capacitive variation. In particular, the amplification stage is an input stage of the preamplifier circuit and has a fully differential amplifier having a first differential input (INP) directly connected to the MEMS detection structure and a second differential input (INN) connected to a reference capacitive element, which has a value of capacitance equal to the capacitance at rest of the MEMS detection structure and fixed with respect to the acoustic signal to be detected; the fully differential amplifier amplifies the capacitive variation and generates the differential output signal.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 16, 2017
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Filippo David, Igino Padovani
  • Publication number: 20160218688
    Abstract: Described herein is a preamplifier circuit for a capacitive acoustic transducer provided with a MEMS detection structure that generates a capacitive variation as a function of an acoustic signal to be detected, starting from a capacitance at rest; the preamplifier circuit is provided with an amplification stage that generates a differential output signal correlated to the capacitive variation. In particular, the amplification stage is an input stage of the preamplifier circuit and has a fully differential amplifier having a first differential input (INP) directly connected to the MEMS detection structure and a second differential input (INN) connected to a reference capacitive element, which has a value of capacitance equal to the capacitance at rest of the MEMS detection structure and fixed with respect to the acoustic signal to be detected; the fully differential amplifier amplifies the capacitive variation and generates the differential output signal.
    Type: Application
    Filed: March 31, 2016
    Publication date: July 28, 2016
    Inventors: Filippo David, Igino Padovani
  • Patent number: 9380380
    Abstract: The present disclosure is directed to an acoustic transducer configured to detect a sound wave according to changes in capacitances between a vibrating electrode and a fixed electrode. At least one of the vibrating electrode and the fixed electrode being divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting electrical signals. The disclosure includes a digital interface circuit coupled to the divided electrodes. The circuit includes a recombination stage, which supplies a mixed signal by combining the first digital processed signal and the second digital processed signal with a respective weight that is a function of a first level value of the first processed signal. An output stage is included, which supplies, selectively and alternatively, a first processed signal, a second processed signal, or a mixed signal.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: June 28, 2016
    Assignees: STMicroelectronics S.r.l., Omron Corporation
    Inventors: Takashi Kasai, Shobu Sato, Yuki Uchida, Igino Padovani, Filippo David, Sebastiano Conti, Martino Zerbini, Luca Molinari
  • Patent number: 9363608
    Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: June 7, 2016
    Assignees: OMRON CORPORATION, STMICROELECTRONICS S.R.L.
    Inventors: Takashi Kasai, Shobu Sato, Yuki Uchida, Igino Padovani, Filippo David, Sebastiano Conti
  • Publication number: 20160157023
    Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.
    Type: Application
    Filed: February 5, 2016
    Publication date: June 2, 2016
    Inventors: Takashi KASAI, Shobu SATO, Yuki UCHIDA, Igino PADOVANI, Filippo DAVID, Sebastiano CONTI
  • Patent number: 9350305
    Abstract: Described herein is a preamplifier circuit for a capacitive acoustic transducer provided with a MEMS detection structure that generates a capacitive variation as a function of an acoustic signal to be detected, starting from a capacitance at rest; the preamplifier circuit is provided with an amplification stage that generates a differential output signal correlated to the capacitive variation. In particular, the amplification stage is an input stage of the preamplifier circuit and has a fully differential amplifier having a first differential input (INP) directly connected to the MEMS detection structure and a second differential input (INN) connected to a reference capacitive element, which has a value of capacitance equal to the capacitance at rest of the MEMS detection structure and fixed with respect to the acoustic signal to be detected; the fully differential amplifier amplifies the capacitive variation and generates the differential output signal.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: May 24, 2016
    Assignee: STMicroelectronics S.r.l.
    Inventors: Filippo David, Igino Padovani
  • Patent number: 9329610
    Abstract: A biasing circuit for an acoustic transducer is provided with: a voltage-booster stage, which supplies, on a biasing terminal, a boosted voltage for biasing a first terminal of the acoustic transducer; and filtering elements, set between the biasing terminal and the acoustic transducer, for filtering disturbances on the boosted voltage. The biasing circuit is further provided with switches, which can be actuated so as to connect the first terminal to the biasing terminal of the voltage-booster stage, directly during a start-up step of the biasing circuit, and through the filtering elements at the end of the start-up step.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: May 3, 2016
    Assignee: STMicroelectronics S.r.l.
    Inventors: Filippo David, Alessandro Gasparini
  • Patent number: 8837754
    Abstract: A MEMS transducer has a micromechanical sensing structure and a package. The package is provided with a substrate, carrying first electrical-connection elements, and with a lid, coupled to the substrate to define an internal cavity, in which the micromechanical sensing structure is housed. The lid is formed by: a cap layer having a first surface and a second surface, set opposite to one another, the first surface defining an external face of the package and the second surface facing the substrate inside the package; and a wall structure, set between the cap layer and the substrate, and having a coupling face coupled to the substrate. At least a first electrical component is coupled to the second surface of the cap layer, inside the package, and the coupling face of the wall structure carries second electrical-connection elements, electrically connected to the first electrical component and to the first electrical-connection elements.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: September 16, 2014
    Assignees: STMicroelectronics S.r.l., STMicroelectronics (Malta) Ltd.
    Inventors: Kevin Formosa, Mark Anthony Azzopardi, Mario Francesco Cortese, Mark Shaw, Alex Gritti, Luca Maggi, Filippo David
  • Publication number: 20140191343
    Abstract: Provided is an acoustic transducer including: a semiconductor substrate; a vibrating membrane, provided above the semiconductor substrate, including a vibrating electrode; and a fixed membrane, provided above the semiconductor substrate, including a fixed electrode, the acoustic transducer detecting a sound wave according to changes in capacitances between the vibrating electrode and the fixed electrode, converting the sound wave into electrical signals, and outputting the electrical signals. At least one of the vibrating electrode and the fixed electrode is divided into a plurality of divided electrodes, and the plurality of divided electrodes outputting the electrical signals.
    Type: Application
    Filed: December 22, 2011
    Publication date: July 10, 2014
    Applicants: STMICROELECTRONICS S.R.L., OMRON CORPORATION
    Inventors: Takashi Kasai, Shobu Sato, Yuki Uchida, Igino Padovani, Filippo David, Sebastiano Conti
  • Publication number: 20140037113
    Abstract: Described herein is a preamplifier circuit for a capacitive acoustic transducer provided with a MEMS detection structure that generates a capacitive variation as a function of an acoustic signal to be detected, starting from a capacitance at rest; the preamplifier circuit is provided with an amplification stage that generates a differential output signal correlated to the capacitive variation. In particular, the amplification stage is an input stage of the preamplifier circuit and has a fully differential amplifier having a first differential input (INP) directly connected to the MEMS detection structure and a second differential input (INN) connected to a reference capacitive element, which has a value of capacitance equal to the capacitance at rest of the MEMS detection structure and fixed with respect to the acoustic signal to be detected; the fully differential amplifier amplifies the capacitive variation and generates the differential output signal.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 6, 2014
    Applicant: STMicroelectronics S. r.l.
    Inventors: Filippo David, Igino Padovani