Patents by Inventor Jimmy Fort

Jimmy Fort 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: 11300985
    Abstract: A device includes a current source, a first transistor connected between a first supply rail and an output terminal, and a second transistor connected between the output terminal and a first terminal of the current source, wherein a second terminal of the current source is connected to a second supply rail. A variable-gain amplifier circuit responds to a potential at the first terminal of the current source by applying a potential to the control terminal of the first transistor. A gain of the amplifier circuit is determined by a potential at the output terminal.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: April 12, 2022
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Jimmy Fort
  • Publication number: 20220066488
    Abstract: The present invention concerns an electronic circuit power supply device, configured to: flow, through a first conductor connected to a node, a first current that is an image of a second current consumed by the electronic circuit; flow a third current through a second conductor connected to the node, a first branch of a current mirror conducting the third current; flow a fourth constant current through a third conductor connected to the node; consume a fifth current that is an image of the third current; and regulate a potential of the node by acting on a gate potential of a transistor electrically in series with a second branch of the current mirror.
    Type: Application
    Filed: August 11, 2021
    Publication date: March 3, 2022
    Inventors: Nicolas Demange, Nicolas Borrel, Jimmy Fort
  • Publication number: 20220066494
    Abstract: An embodiment electronic circuit power supply device is configured to: flow, through a first conductor connected to a node, a first current that is an image of a second current consumed by the electronic circuit; flow a third current through a second conductor connected to the node; regulate a potential of the node to a constant value by acting on the third current; flow a fourth constant current through a third conductor connected to the node; and consume a fifth current that is an image of the third current.
    Type: Application
    Filed: August 11, 2021
    Publication date: March 3, 2022
    Inventors: Nicolas Demange, Nicolas Borrel, Jimmy Fort
  • Publication number: 20220052691
    Abstract: The physically unclonable function device (DIS) comprises a set of MOS transistors (TR1i, TR2j) mounted in diodes having a random distribution of respective threshold voltages, and comprising N first transistors and at least one second transistor. At least one output node of the function is capable of delivering a signal, the level of which depends on the comparison between a current obtained using a current circulating in the at least one second transistor and a current obtained using a reference current that is equal or substantially equal to the average of the currents circulating in the N first transistors. A first means (FM1i) is configured to impose on each first transistor a respective fixed gate voltage regardless of the value of the current circulating in the first transistor, and a second means (SM2j) is configured to impose a respective fixed gate voltage on each second transistor regardless of the value of the current circulating in the second transistor.
    Type: Application
    Filed: November 28, 2019
    Publication date: February 17, 2022
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Nicolas Borrel, Jimmy Fort, Mathieu Lisart
  • Patent number: 11249501
    Abstract: A device includes a first transistor connected between a first node and an output terminal and a first current source connected between the first node and a supply rail. A circuit includes a second current source connected between the supply rail and a second node, an operational amplifier having a non-inverting input configured to receive a potential set point, and a second transistor connected between the second node and an inverting input of the operational amplifier. An output of the operational amplifier is connected to a control terminal of the second transistor and further connected to a control terminal of the first transistor.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: February 15, 2022
    Assignee: STMicroelectronics (Rousset) SAS
    Inventor: Jimmy Fort
  • Patent number: 11137786
    Abstract: An electronic device includes a starting circuit configured to compare a value representative of the power supply voltage with a threshold, wherein the circuit includes a generator of a current proportional to temperature.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: October 5, 2021
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Jimmy Fort, Maud Pierrel, Nicolas Borrel, Thierry Soude
  • Publication number: 20210181778
    Abstract: An embodiment method for smoothing consumed current is based on a current copying suite and on a current source supplying a reference current, the currents being transformed into a reference voltage for the regulation of a voltage regulator such that the consumed current viewed by the power supply only depends on the reference current.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 17, 2021
    Inventors: Jimmy Fort, Nicolas Demange
  • Publication number: 20210157392
    Abstract: An embodiment of the present disclosure relates to a circuit of cyclic activation of an electronic function comprising a hysteresis comparator controlling the charge of a capacitive element powering the function.
    Type: Application
    Filed: June 25, 2019
    Publication date: May 27, 2021
    Inventors: Alexandre Tramoni, Jimmy Fort
  • Publication number: 20210124380
    Abstract: A device includes a current source, a first transistor connected between a first supply rail and an output terminal, and a second transistor connected between the output terminal and a first terminal of the current source, wherein a second terminal of the current source is connected to a second supply rail. A variable-gain amplifier circuit responds to a potential at the first terminal of the current source by applying a potential to the control terminal of the first transistor. A gain of the amplifier circuit is determined by a potential at the output terminal.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 29, 2021
    Applicant: STMicroelectronics (Rousset) SAS
    Inventor: Jimmy Fort
  • Publication number: 20210124384
    Abstract: A device includes a first transistor connected between a first node and an output terminal and a first current source connected between the first node and a supply rail. A circuit includes a second current source connected between the supply rail and a second node, an operational amplifier having a non-inverting input configured to receive a potential set point, and a second transistor connected between the second node and an inverting input of the operational amplifier. An output of the operational amplifier is connected to a control terminal of the second transistor and further connected to a control terminal of the first transistor.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 29, 2021
    Applicant: STMicroelectronics (Rousset) SAS
    Inventor: Jimmy FORT
  • Publication number: 20210099162
    Abstract: An embodiment provides a circuit of cyclic activation of an electronic function including a hysteresis comparator controlling the charge of a capacitive element powering the function.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Inventors: Alexandre Tramoni, Jimmy Fort
  • Patent number: 10949572
    Abstract: The supply voltage for a module of an integrated circuit managed to support protection against side channel attacks. Upon startup of the integrated circuit, one action from the following actions is selected in response to a command: supplying the module with the supply voltage having a fixed value that is selected from a plurality of predetermined values, or varying the value of the supply voltage in time with a pulsed signal.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: March 16, 2021
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Alexandre Sarafianos, Thomas Ordas, Yanis Linge, Jimmy Fort
  • Publication number: 20200371541
    Abstract: An electronic device includes a starting circuit configured to compare a value representative of the power supply voltage with a threshold, wherein the circuit includes a generator of a current proportional to temperature.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 26, 2020
    Inventors: Jimmy Fort, Maud Pierrel, Nicolas Borrel, Thierry Soude
  • Patent number: 10769513
    Abstract: An electronic device includes a logic circuit and an auxiliary circuit. The logic circuit includes a first terminal coupled to a supply voltage terminal, a second terminal intended coupled to a reference voltage terminal and an output terminal configured to deliver a signal in a high state or a low state. The auxiliary circuit is coupled between the first terminal and the second terminal and is configured to randomly generate or not generate an additional current between the first terminal and the second terminal on each change of state of the signal on the output terminal.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 8, 2020
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Alexandre Sarafianos, Thomas Ordas, Yanis Linge, Jimmy Fort
  • Patent number: 10768229
    Abstract: A circuit for detecting a glitch in power supply includes a detection circuit to detect the glitch in a DC supply voltage of the power supply when a magnitude in the glitch in a DC supply voltage of the power supply exceeds a detection threshold, wherein the detection threshold is a function of the DC supply voltage, and wherein the detection circuit comprises a low pass filter, a control circuit coupled to the low pass filter, and a current mirror circuit coupled to the control circuit having an output for providing a logic signal indicative of a detected glitch.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: September 8, 2020
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Nicolas Borrel, Jimmy Fort
  • Patent number: 10691840
    Abstract: A secure electronic chip including a plurality of biased semiconductor wells and a well biasing current detection circuit. Each of the wells includes a transistor and a bias contact electrically isolated from the transistor. The detection circuit is electrically coupled to each bias contact and is configured to detect a bias current passing through the bias contact that is indicative of an attempt to tamper with the electronic chip.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 23, 2020
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Alexandre Sarafianos, Jimmy Fort, Clement Champeix, Jean-Max Dutertre, Nicolas Borrel
  • Patent number: 10685923
    Abstract: An electronic chip including a plurality of buried doped bars and a circuit for detecting an anomaly of an electric characteristic of the bars.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: June 16, 2020
    Assignee: STMICROELECTRONICS (ROUSSET) SAS
    Inventors: Alexandre Sarafianos, Jimmy Fort, Thierry Soude
  • Patent number: 10673431
    Abstract: A power supply voltage is monitored by a monitoring circuit including a variable current generator and a band gap voltage generator core receiving the variable current and including a first node and a second node. A control circuit connected to the first and second nodes is configured to deliver a control signal on a first output node having a first state when an increasing power supply voltage is below a first threshold and having a second state when increasing power supply voltage exceeds the first threshold. The first threshold is at least equal to the band gap voltage. An equalization circuit also connected to the first and second nodes with feedback to the variable current generator generates the bandgap voltage at a second output node. The control signal operates to control actuation of the equalization circuit.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: June 2, 2020
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Jimmy Fort, Nicolas Borrel, Francesco La Rosa
  • Patent number: 10560089
    Abstract: A power supply voltage is monitored by a monitoring circuit including a band gap voltage generator core including a first node and a second node. A control circuit connected to the first and second nodes is configured to deliver a control signal on a first output node having a first state when an increasing power supply voltage is below a first threshold and having a second state when increasing power supply voltage exceeds the first threshold. The first threshold is at least equal to the band gap voltage. An equalization circuit also connected to the first and second nodes with feedback to the band gap voltage generator core generates the bandgap voltage at a second output node. The control signal operates to control actuation of the equalization circuit.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: February 11, 2020
    Assignee: STMicroelectronics (Rousset) SAS
    Inventors: Nicolas Borrel, Jimmy Fort, Francesco La Rosa
  • Publication number: 20190354728
    Abstract: The supply voltage for a module of an integrated circuit managed to support protection against side channel attacks. Upon startup of the integrated circuit, one action from the following actions is selected in response to a command: supplying the module with the supply voltage having a fixed value that is selected from a plurality of predetermined values, or varying the value of the supply voltage in time with a pulsed signal.
    Type: Application
    Filed: May 14, 2019
    Publication date: November 21, 2019
    Applicant: STMicroelectronics (Rousset) SAS
    Inventors: Alexandre SARAFIANOS, Thomas ORDAS, Yanis LINGE, Jimmy FORT