Patents by Inventor Luigino D'Alessio

Luigino D'Alessio 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: 10389376
    Abstract: In some embodiments, a circuit for use in devices involving digital-to-analog conversion of signals includes: a capacitive digital-to-analog converter array and an amplifier. The capacitive digital-to-analog converter includes an input port for receiving a digital input signal and an output port. The amplifier includes capacitive feedback loops that include a first capacitor coupling the output of the amplifier with the input of the amplifier and a second capacitor coupled to the output port of the digital-to-analog converter array at the input of the amplifier. The circuit further includes a set of switches that include a first switch and a second switch coupled with opposed ends of the second capacitor at the input and at the output of the amplifier, respectively.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: August 20, 2019
    Assignee: STMicroelectronics S.r.l.
    Inventors: Luigino D'Alessio, Germano Nicollini
  • Publication number: 20190013819
    Abstract: In some embodiments, a circuit for use in devices involving digital-to-analog conversion of signals includes: a capacitive digital-to-analog converter array and an amplifier. The capacitive digital-to-analog converter includes an input port for receiving a digital input signal and an output port. The amplifier includes capacitive feedback loops that include a first capacitor coupling the output of the amplifier with the input of the amplifier and a second capacitor coupled to the output port of the digital-to-analog converter array at the input of the amplifier. The circuit further includes a set of switches that include a first switch and a second switch coupled with opposed ends of the second capacitor at the input and at the output of the amplifier, respectively.
    Type: Application
    Filed: June 27, 2018
    Publication date: January 10, 2019
    Inventors: Luigino D'Alessio, Germano Nicollini
  • Patent number: 8539263
    Abstract: A method is for choosing a mode out of a set of functioning modes of an integrated circuit (IC) device powered from different supply voltages from respective supply nodes. The IC device may include a mode pin for determining a functioning mode of the device, an internal control circuit coupled to the supply nodes and to the mode pin for sensing an electrical value on the mode pin and to start the IC device in a respective functioning mode depending on the supply node that is powered first. The method may include identifying the different supply voltage that first exceeds a threshold voltage, when the internal control circuit is powered, sensing the electrical value on the mode pin, and powering circuits of the IC device from the different supply voltage that first exceeded the threshold voltage and starting the device in a functioning mode determined by a value of the electrical value sensed on the mode pin and by the different supply voltage that first exceeded the voltage threshold.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: September 17, 2013
    Assignee: STMicroelectronics S.R.L.
    Inventors: Alberto Gussoni, Ambrogio Bogani, Luigino D'Alessio, Paolo Pascale
  • Patent number: 8203365
    Abstract: A circuit is for generating a signal that indicates whether or not an input current exceeds a pre-established threshold current and, in the affirmative case, that is representative of the difference between the input current and the threshold current. The circuit includes a diode-connected transistor biased with a first constant current in a saturation functioning condition, a sense transistor mirrored to the diode-connected transistor and biased in a linear (triode) functioning condition, a load transistor connected in series to the sense transistor, biased with a second constant current and the control terminal of which is connected in common with the respective terminals of the diode-connected transistor and of the sense transistor. The input current to be compared is injected to a common current node of the load transistor and of the sense transistor, and the output voltage is available on the other current node of the load transistor.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: June 19, 2012
    Assignee: STMicroelectronics S.R.L.
    Inventors: Gianluca Valentino, Luigino D'Alessio, Giancarlo Candela
  • Publication number: 20110148482
    Abstract: A method is for choosing a mode out of a set of functioning modes of an integrated circuit (IC) device powered from different supply voltages from respective supply nodes. The IC device may include a mode pin for determining a functioning mode of the device, an internal control circuit coupled to the supply nodes and to the mode pin for sensing an electrical value on the mode pin and to start the IC device in a respective functioning mode depending on the supply node that is powered first. The method may include identifying the different supply voltage that first exceeds a threshold voltage, when the internal control circuit is powered, sensing the electrical value on the mode pin, and powering circuits of the IC device from the different supply voltage that first exceeded the threshold voltage and starting the device in a functioning mode determined by a value of the electrical value sensed on the mode pin and by the different supply voltage that first exceeded the voltage threshold.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 23, 2011
    Applicant: STMicroelectronics S.r.I.
    Inventors: Alberto GUSSONI, Ambrogio Bogani, Luigino D'Alessio, Paolo Pascale
  • Publication number: 20100073034
    Abstract: A circuit is for generating a signal that indicates whether or not an input current exceeds a pre-established threshold current and, in the affirmative case, that is representative of the difference between the input current and the threshold current. The circuit includes a diode-connected transistor biased with a first constant current in a saturation functioning condition, a sense transistor mirrored to the diode-connected transistor and biased in a linear (triode) functioning condition, a load transistor connected in series to the sense transistor, biased with a second constant current and the control terminal of which is connected in common with the respective terminals of the diode-connected transistor and of the sense transistor. The input current to be compared is injected to a common current node of the load transistor and of the sense transistor, and the output voltage is available on the other current node of the load transistor.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 25, 2010
    Applicant: STMicroelectronics S.r.I.
    Inventors: Gianluca Valentino, Luigino D'Alessio, Giancarlo Candela