Patents by Inventor Tiziano Chiarillo

Tiziano Chiarillo 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: 11778358
    Abstract: A detection device includes a pressure sensor, which provides a pressure signal indicative of an ambient pressure in an operating environment. An electrostatic-charge-variation sensor provides a charge-variation signal indicative of a variation of electrostatic charge associated with the operating environment, and processing circuitry is coupled to the pressure sensor and to the electrostatic-charge-variation sensor so as to receive the pressure signal and the charge-variation signal, and jointly processes the pressure signal and the charge-variation signal for detecting a variation between a first operating environment and a second operating environment for the detection device. The second operating environment is different from the first operating environment.
    Type: Grant
    Filed: January 3, 2022
    Date of Patent: October 3, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Enrico Rosario Alessi, Fabio Passaniti, Tiziano Chiarillo, Massimiliano Pesaturo
  • Publication number: 20220416743
    Abstract: A circuit includes an amplifier, a bias voltage node, and a first set of switches configured, based on a first reset signal having a first value, to couple first and second input nodes to the bias voltage node and to couple first and second output nodes of the amplifier. First and second feedback branches each include a respective RC network including a plurality of capacitances. The first and second feedback branches further include a second set of switches intermediate input nodes and the capacitances, and a third set of switches intermediate input nodes and the plurality of capacitances. These switches selectively couple the capacitances to the input nodes and output nodes, based on a second reset signal having a first value. The second reset signal keeps the first value for a determined time interval exceeding a time interval in which the first reset signal has the first value.
    Type: Application
    Filed: June 13, 2022
    Publication date: December 29, 2022
    Applicant: STMicroelectronics S.r.l.
    Inventors: Roberto MODAFFARI, Paolo PESENTI, Mario MAIORE, Tiziano CHIARILLO
  • Publication number: 20220225003
    Abstract: A detection device includes a pressure sensor, which provides a pressure signal indicative of an ambient pressure in an operating environment. An electrostatic-charge-variation sensor provides a charge-variation signal indicative of a variation of electrostatic charge associated with the operating environment, and processing circuitry is coupled to the pressure sensor and to the electrostatic-charge-variation sensor so as to receive the pressure signal and the charge-variation signal, and jointly processes the pressure signal and the charge-variation signal for detecting a variation between a first operating environment and a second operating environment for the detection device. The second operating environment is different from the first operating environment.
    Type: Application
    Filed: January 3, 2022
    Publication date: July 14, 2022
    Applicant: STMicroelectronics S.r.l.
    Inventors: Enrico Rosario ALESSI, Fabio PASSANITI, Tiziano CHIARILLO, Massimiliano PESATURO
  • Patent number: 10444013
    Abstract: A MEMS gyroscope, wherein a suspended mass is mobile with respect to a supporting structure. The mobile mass is affected by quadrature error caused by a quadrature moment; a driving structure is coupled to the suspended mass for controlling the movement of the mobile mass in a driving direction at a driving frequency. Motion-sensing electrodes, coupled to the mobile mass, detect the movement of the mobile mass in the sensing direction and quadrature-compensation electrodes are coupled to the mobile mass to generate a compensation moment opposite to the quadrature moment. The gyroscope is configured to bias the quadrature-compensation electrodes with a compensation voltage so that the difference between the resonance frequency of the mobile mass and the driving frequency has a preset frequency-mismatch value.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: October 15, 2019
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Daniele Prati, Carlo Valzasina, Tiziano Chiarillo, Pasquale Franco
  • Publication number: 20180038692
    Abstract: A MEMS gyroscope, wherein a suspended mass is mobile with respect to a supporting structure. The mobile mass is affected by quadrature error caused by a quadrature moment; a driving structure is coupled to the suspended mass for controlling the movement of the mobile mass in a driving direction at a driving frequency. Motion-sensing electrodes, coupled to the mobile mass, detect the movement of the mobile mass in the sensing direction and quadrature-compensation electrodes are coupled to the mobile mass to generate a compensation moment opposite to the quadrature moment. The gyroscope is configured to bias the quadrature-compensation electrodes with a compensation voltage so that the difference between the resonance frequency of the mobile mass and the driving frequency has a preset frequency-mismatch value.
    Type: Application
    Filed: March 14, 2017
    Publication date: February 8, 2018
    Inventors: Daniele Prati, Carlo Valzasina, Tiziano Chiarillo, Pasquale Franco
  • Patent number: 9231540
    Abstract: A class AB operational amplifier includes an input stage, an output stage and a level shifter stage to control the quiescent current of the output stage and to transfer the signal from the input stage to the output stage, and a control circuit of the level shifter stage. The control circuit includes a transistor differential pair having a differential input terminals and the differential voltage at the differential terminals of the differential pair controls the level shifter stage.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: January 5, 2016
    Assignees: STMICROELECTRONICS (GRENOBLE 2) SAS, STMICROELECTRONICS S.R.L.
    Inventors: MarcoOrazio Cavallaro, Serge Ramet, Tiziano Chiarillo
  • Patent number: 8854136
    Abstract: A fully differential operational amplifier includes a differential input stage, at least one output stage and a common-mode feedback circuit connected with the input stage. The differential input stage includes a differential pair of transistors and a bias circuit for the differential pair of transistors. A start-up circuit operates to detect an operating condition of the differential pair of transistors of the input stage and in response thereto turn on the bias circuit.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: October 7, 2014
    Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics S.r.l.
    Inventors: Marco Orazio Cavallaro, Serge Ramet, Tiziano Chiarillo
  • Publication number: 20140292411
    Abstract: A class AB operational amplifier includes an input stage, an output stage and a level shifter stage to control the quiescent current of the output stage and to transfer the signal from the input stage to the output stage, and a control circuit of the level shifter stage. The control circuit includes a transistor differential pair having a differential input terminals and the differential voltage at the differential terminals of the differential pair controls the level shifter stage.
    Type: Application
    Filed: June 13, 2014
    Publication date: October 2, 2014
    Inventors: MarcoOrazio CAVALLARO, Serge RAMET, Tiziano CHIARILLO
  • Patent number: 8773202
    Abstract: A class AB operational amplifier includes an input stage, an output stage and a level shifter stage to control the quiescent current of the output stage and to transfer the signal from the input stage to the output stage, and a control circuit of the level shifter stage. The control circuit includes a transistor differential pair having a differential input terminals and the differential voltage at the differential terminals of the differential pair controls the level shifter stage.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: July 8, 2014
    Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics s.r.l.
    Inventors: MarcoOrazio Cavallaro, Serge Ramet, Tiziano Chiarillo
  • Publication number: 20130088298
    Abstract: A class AB operational amplifier includes an input stage, an output stage and a level shifter stage to control the quiescent current of the output stage and to transfer the signal from the input stage to the output stage, and a control circuit of the level shifter stage. The control circuit includes a transistor differential pair having a differential input terminals and the differential voltage at the differential terminals of the differential pair controls the level shifter stage.
    Type: Application
    Filed: July 30, 2012
    Publication date: April 11, 2013
    Applicants: STMicroelectronics, S.r.l., STMicroelectronics (Grenoble 2) SAS
    Inventors: MarcoOrazio Cavallaro, Serge Ramet, Tiziano Chiarillo
  • Patent number: 7405608
    Abstract: A modulator apparatus operating at a low supply voltage, configured for receiving an input-voltage signal in base band and supplying an output-voltage signal at a given modulation frequency under control of a signal generated by a local oscillator and comprising a transconductor stage that carries out a voltage-to-current conversion of said input-voltage signal. A voltage-to-current conversion module is coupled to a current-mirror module configured for mirroring a current in a Gilbert-cell stage, which supplies an output-voltage signal under the control of said signal generated by the local oscillator. The Gilbert-cell stage further comprises an output load for carrying out a current-to-voltage conversion and supplying the output-voltage signal. Said transconductor stage further comprises a differential feedback network configured for reproducing said input-voltage signal on a differential load included in said voltage-to-current conversion module.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: July 29, 2008
    Assignee: STMicroelectronics S.r.l.
    Inventors: Pietro Filoramo, Alberto Cavallaro, Tiziano Chiarillo
  • Publication number: 20070200622
    Abstract: A modulator apparatus operating at a low supply voltage, configured for receiving an input-voltage signal in base band and supplying an output-voltage signal at a given modulation frequency under control of a signal generated by a local oscillator and comprising a transconductor stage that carries out a voltage-to-current conversion of said input-voltage signal. A voltage-to-current conversion module is coupled to a current-mirror module configured for mirroring a current in a Gilbert-cell stage, which supplies an output-voltage signal under the control of said signal generated by the local oscillator. The Gilbert-cell stage further comprises an output load for carrying out a current-to-voltage conversion and supplying the output-voltage signal. Said transconductor stage further comprises a differential feedback network configured for reproducing said input-voltage signal on a differential load included in said voltage-to-current conversion module.
    Type: Application
    Filed: January 4, 2007
    Publication date: August 30, 2007
    Applicant: STMICROELECTRONICS S.R.L.
    Inventors: Pietro Filoramo, Alberto Cavallaro, Tiziano Chiarillo
  • Patent number: 6661286
    Abstract: A variable gain amplifier is described which comprises a first device to which a first control signal (Vc, Vc1) is applied so that the gain (Ai1, Ai) of an output signal (iout, io) of the first device (11, 22, Q45-Q48) with respect to a first input signal (in, i1, ir) is a function of the exponential type of the first control signal (Vc, Vc1). The amplifier comprises a feedback network (25, Q51-Q58) connected between an output terminal and an input terminal of the first device (22, Q45-Q48) so as to assure that the gain (Ai) in decibel of the first device (22, Q45-Q48) is a linear function of the first control signal (Vc1).
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: December 9, 2003
    Assignee: STMicroelectronics S.r.l.
    Inventors: Pietro Filoramo, Tiziano Chiarillo
  • Publication number: 20020140507
    Abstract: A variable gain amplifier is described which comprises a first device to which a first control signal (Vc, Vc1) is applied so that the gain (Ai1, Ai) of an output signal (iout, io) of the first device (11, 22, Q45-Q48) with respect to a first input signal (in, i1, ir) is a function of the exponential type of the first control signal (Vc, Vc1). The amplifier comprises a feedback network (25, Q51-Q58) connected between an output terminal and an input terminal of the first device (22, Q45-Q48) so as to assure that the gain (Ai) in decibel of the first device (22, Q45-Q48) is a linear function of the first control signal (Vc1). (FIG.
    Type: Application
    Filed: February 13, 2002
    Publication date: October 3, 2002
    Applicant: STMicroelectronics S.r.I.
    Inventors: Pietro Filoramo, Tiziano Chiarillo