Patents by Inventor Francois Druilhe
Francois Druilhe 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).
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Patent number: 11742757Abstract: A power supply system includes a voltage application source, and a switched mode power supply having an output coupled to the voltage application source through a first path and through a second path different from the first path. A first node is coupled to the output of the switched mode power supply, the switched mode power supply being configured to couple the first node to the voltage application source through the first path in a first operating mode and through the second path in a different second operating mode. A digital regulator is coupled to the first node. A digital circuit is coupled to an output of the digital regulator. An analog regulator is coupled to the first node and an analog circuit coupled to an output of the analog regulator.Type: GrantFiled: February 9, 2022Date of Patent: August 29, 2023Assignees: STMicroelectronics (Alps) SAS, STMicroelectronics S.r.l.Inventors: Francois Druilhe, Patrik Arno, Alessandro Inglese, Michele Alessandro Carrano
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Publication number: 20220271663Abstract: A power supply system includes a voltage application source, and a switched mode power supply having an output coupled to the voltage application source through a first path and through a second path different from the first path. A first node is coupled to the output of the switched mode power supply, the switched mode power supply being configured to couple the first node to the voltage application source through the first path in a first operating mode and through the second path in a different second operating mode. A digital regulator is coupled to the first node. A digital circuit is coupled to an output of the digital regulator. An analog regulator is coupled to the first node and an analog circuit coupled to an output of the analog regulator.Type: ApplicationFiled: February 9, 2022Publication date: August 25, 2022Inventors: Francois Druilhe, Patrik Arno, Alessandro Inglese, Michele Alessandro Carrano
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Patent number: 11283353Abstract: A power supply system includes a voltage application source, and a switched mode power supply having an output coupled to the voltage application source through a first path and through a second path different from the first path. A first node is coupled to the output of the switched mode power supply, the switched mode power supply being configured to couple the first node to the voltage application source through the first path in a first operating mode and through the second path in a different second operating mode. A digital regulator is coupled to the first node. A digital circuit is coupled to an output of the digital regulator. An analog regulator is coupled to the first node and an analog circuit coupled to an output of the analog regulator.Type: GrantFiled: April 16, 2019Date of Patent: March 22, 2022Assignees: STMICROELECTRONICS S.R.L., STMICROELECTRONICS (ALPS) SASInventors: Francois Druilhe, Patrik Arno, Alessandro Inglese, Michele Alessandro Carrano
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Patent number: 10944359Abstract: A quartz crystal resonator is coupled to an electronic circuit. A capacitive or resistive element is provided for adjusting a frequency of the quartz crystal resonator on activation or deactivation of a function of a circuit. Control is made according to a model of an expected variation of a temperature of the quartz crystal resonator.Type: GrantFiled: December 3, 2018Date of Patent: March 9, 2021Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Alps) SASInventors: Benoit Marchand, Francois Druilhe
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Patent number: 10944358Abstract: A quartz crystal resonator is connected to an array of switchable capacitors or resistors. The switched actuation of elements of the array is controlled by bits of a control word. At least one of the bits of the control word is controlled by pulse width modulation to effectuate a tuning of the oscillation frequency of the quartz crystal resonator.Type: GrantFiled: December 3, 2018Date of Patent: March 9, 2021Assignees: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Alps) SASInventors: Benoit Marchand, Francois Druilhe
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Publication number: 20190319538Abstract: A power supply system includes a voltage application source, and a switched mode power supply having an output coupled to the voltage application source through a first path and through a second path different from the first path. A first node is coupled to the output of the switched mode power supply, the switched mode power supply being configured to couple the first node to the voltage application source through the first path in a first operating mode and through the second path in a different second operating mode. A digital regulator is coupled to the first node. A digital circuit is coupled to an output of the digital regulator. An analog regulator is coupled to the first node and an analog circuit coupled to an output of the analog regulator.Type: ApplicationFiled: April 16, 2019Publication date: October 17, 2019Inventors: Francois Druilhe, Patrik Arno, Alessandro Inglese, Michele Alessandro Carrano
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Publication number: 20190173426Abstract: A quartz crystal resonator is connected to an array of switchable capacitors or resistors. The switched actuation of elements of the array is controlled by bits of a control word. At least one of the bits of the control word is controlled by pulse width modulation to effectuate a tuning of the oscillation frequency of the quartz crystal resonator.Type: ApplicationFiled: December 3, 2018Publication date: June 6, 2019Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Alps) SASInventors: Benoit MARCHAND, Francois DRUILHE
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Publication number: 20190173427Abstract: A quartz crystal resonator is coupled to an electronic circuit. A capacitive or resistive element is provided for adjusting a frequency of the quartz crystal resonator on activation or deactivation of a function of a circuit. Control is made according to a model of an expected variation of a temperature of the quartz crystal resonator.Type: ApplicationFiled: December 3, 2018Publication date: June 6, 2019Applicants: STMicroelectronics (Grenoble 2) SAS, STMicroelectronics (Alps) SASInventors: Benoit MARCHAND, Francois DRUILHE
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Patent number: 7486582Abstract: A DRAM and its application to a mobile telephony circuit with a control circuit including a first refreshment controller controlled by a first clock signal and a second refreshment controller controlled by a second clock signal having a frequency less than that of the first one and used to synchronize events of the GSM network.Type: GrantFiled: February 3, 2006Date of Patent: February 3, 2009Assignee: STMicroelectronics S.A.Inventors: François Druilhe, Andrew Cofler, Denis Dutoit, Michel Harrand, Gilles Eyzat, Christian Freund
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Publication number: 20060176748Abstract: A DRAM and its application to a mobile telephony circuit with a control circuit including a first refreshment controller controlled by a first clock signal and a second refreshment controller controlled by a second clock signal having a frequency less than that of the first one and used to synchronize events of the GSM network.Type: ApplicationFiled: February 3, 2006Publication date: August 10, 2006Applicant: STMicroelectronics SAInventors: Francois Druilhe, Andrew Cofler, Denis Dutoit, Michel Harrand, Gilles Eyzat, Christian Freund
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Patent number: 6452967Abstract: A method for reducing disturbing effects of coupling between a first transmission/reception device and a second transmission/reception device that are each connected to a subscriber line. According to the method, a signal received on a reception path of the first device is delayed by a delay equal to p times the transmission period. A coupling signal relating to a transmission path of a second device and the reception path of the first device is estimated based on a signal transmitted over the transmission path of the second device, and the delayed signal is ridded of the estimated coupling signal. Additionally, a device for transmitting/receiving a signal is provided. The device includes a memory coupled to a reception path for temporarily storing p symbols, a subtraction circuit, and a coupling estimation block.Type: GrantFiled: February 17, 1999Date of Patent: September 17, 2002Assignee: STMicroelectronics S.A.Inventor: François Druilhe
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Patent number: 5434849Abstract: A duplex modem for processing data needed for cancelling far-end echo includes at least one high-speed processor of the data pump type performing filtering operations and a microcontroller. The data, corresponding to transmitted data and necessary for cancelling far-end echoes, are stored in a memory associated with and controlled by the microcontroller.Type: GrantFiled: August 7, 1992Date of Patent: July 18, 1995Assignee: SGS-Thomson Microelectronics S.A.Inventors: Dominique Vicard, William Glass, Francois Druilhe
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Patent number: 5333149Abstract: A process and a circuit for carrying out the process for adapting coefficients in a modem equalizer comprises a memory cell for storing a coefficient, an adapter receiving the output of the cell and providing a first signal having a first correction, and an adder receiving the first signal and providing a second signal to the cell. The adder also receives a value k much smaller than 1 having the sign provided by a comparator comparing an initial value of the considered coefficient and its current value.Type: GrantFiled: August 17, 1992Date of Patent: July 26, 1994Assignee: SGS-Thomson Microelectronics S.A.Inventors: Dominique Vicard, William Glass, Francois Druilhe