Patents by Inventor Yann Deval
Yann Deval 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: 10340942Abstract: An analog signals generating device comprises a current pump controlled by a control code generated by a module for calculating the digital code with shaping of noise. The calculation module receives as input a digital signal representative of the analog signal to be generated and comprises at least one quantizer and a quantization error compensating stage. The current pump comprises two groups of at least one electric current generator and two groups of at least one switching means, the switching facilities being controlled by the control signal and causing the electric currents to flow between the electric current generators and the inputs of a differential amplifier exhibiting a predominantly capacitive input impedance and connected in series between the two groups of switching means.Type: GrantFiled: October 10, 2016Date of Patent: July 2, 2019Assignees: THALES, UNIVERSITE DE BORDEAUX, INSTITUT POLYTECHNIQUE DE BORDEAUX, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Patrick Garrec, Richard Montigny, François Rivet, Yann Deval, Yoan Veyrac
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Publication number: 20180287627Abstract: An analog signals generating device comprises a current pump controlled by a control code generated by a module for calculating the digital code with shaping of noise. The calculation module receives as input a digital signal representative of the analog signal to be generated and comprises at least one quantizer and a quantization error compensating stage. The current pump comprises two groups of at least one electric current generator and two groups of at least one switching means, the switching facilities being controlled by the control signal and causing the electric currents to flow between the electric current generators and the inputs of a differential amplifier exhibiting a predominantly capacitive input impedance and connected in series between the two groups of switching means.Type: ApplicationFiled: October 10, 2016Publication date: October 4, 2018Inventors: Patrick GARREC, Richard MONTIGNY, François RIVET, Yann DEVAL, Yoan VEYRAC
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Patent number: 9484898Abstract: The system has: a set of at least two electric current generators, at least one capacitor and activation/deactivation devices for the electric current generators; the electric current generator being connected in parallel with one another and the capacitor being connected in series with the electric current generators, the activation/deactivation devices controlling the generators by a digital stream allowing control of the intensity of the electric current entering the capacitor and generating a trapezoidal voltage signal at the terminals of the capacitor, the analog signal being reconstructed through interpolation of the trapezoidal signal.Type: GrantFiled: May 19, 2014Date of Patent: November 1, 2016Assignees: THALES, CENTRE NATIONAL DE LA RECHERCE SCIENTIFIQUE, INSTITUT POLYTECHNIQUE DE BORDEAUX, UNIVERSITE DE BORDEAUXInventors: Patrick Garrec, Richard Montigny, Nicolas Regimbal, Yann Deval, François Rivet
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Publication number: 20160087614Abstract: The system has: a set of at least two electric current generators, at least one capacitor and activation/deactivation devices for the electric current generators; the electric current generator being connected in parallel with one another and the capacitor being connected in series with the electric current generators, the activation/deactivation devices controlling the generators by a digital stream allowing control of the intensity of the electric current entering the capacitor and generating a trapezoidal voltage signal at the terminals of the capacitor, the analog signal being reconstructed through interpolation of the trapezoidal signal.Type: ApplicationFiled: May 19, 2014Publication date: March 24, 2016Inventors: Patrick GARREC, Richard MONTIGNY, Nicolas REGIMBAL, Yann DEVAL, François RIVET
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Patent number: 9270300Abstract: A method for generating a radio frequency signal, wherein a signal to be transmitted is decomposed into a weighted sum of periodic basic signals of different frequencies.Type: GrantFiled: February 11, 2014Date of Patent: February 23, 2016Assignees: STMICROELECTRONICS SA, INSTITUT POLYTECHNIQUE DE BORDEAUX, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUXInventors: Didier Belot, Yann Deval, Francois Rivet
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Patent number: 9264076Abstract: A device for generating a signal, including: a balun; and a circuit capable of summing up, on a first access terminal of the balun, currents representative of signals received on first input terminals of the device, and on a second access terminal of the balun, currents representative of signals received on second input terminals of the device.Type: GrantFiled: February 11, 2014Date of Patent: February 16, 2016Assignees: STMICROELECTRONICS SA, INSTITUT POLYTECHNIQUE DE BORDEAUX, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUXInventors: Didier Belot, Yann Deval, Francois Rivet
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Patent number: 9124293Abstract: Continuous time analog/digital converter, comprising a sigma delta modulator (MSD1) configured to receive an analog input signal (x(t)) and comprising high-pass filtering means (MF) the chopping frequency of which is equal to half of the sampling frequency (Fs) of the quantization means (QTZ) of the modulator (MSD1).Type: GrantFiled: June 10, 2013Date of Patent: September 1, 2015Assignee: STMicroelectronics SAInventors: Didier Belot, Jean-Baptiste Begueret, Yann Deval, Dominique Dallet, André Mariano
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Patent number: 8867696Abstract: A fractional frequency divider including a frequency division unit for generating a reduced frequency timing signal having j pulses for every k pulses of an original timing signal, wherein j and k are each integers; and phase correction circuitry adapted to selectively shift each jth pulse of the reduced frequency timing signal by a first fixed time period.Type: GrantFiled: June 29, 2011Date of Patent: October 21, 2014Assignees: STMicroelectronics S.A., STMicroelectronics (Grenoble 2) SAS, Centre National de la Recherche ScientifiqueInventors: Nicolas Regimbal, Franck Badets, Yann Deval, Jean-Baptiste Begueret
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Publication number: 20140233671Abstract: A device for generating a signal, including: a balun; and a circuit capable of summing up, on a first access terminal of the balun, currents representative of signals received on first input terminals of the device, and on a second access terminal of the balun, currents representative of signals received on second input terminals of the device.Type: ApplicationFiled: February 11, 2014Publication date: August 21, 2014Applicants: Institut Polytechnique de Bordeaux, STMicroelectronics S.A.Inventors: DIDIER BELOT, Yann Deval, Francois Rivet
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Publication number: 20140235186Abstract: A method for generating a radio frequency signal, wherein a signal to be transmitted is decomposed into a weighted sum of periodic basic signals of different frequencies.Type: ApplicationFiled: February 11, 2014Publication date: August 21, 2014Applicants: Institut Polytechnique de Bordeaux, STMicroelectronics S.A.Inventors: Didier Belot, Yann Deval, Francois Rivet
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Patent number: 8665038Abstract: A filtering circuit with BAW type acoustic resonators having at least a first quadripole and a second quadripole connected in cascade, each quadripole having a branch series with a first acoustic resonator of type BAW and a branch parallel with each branch having an acoustic resonator of type BAW, the first acoustic resonator having a frequency of resonance series approximately equal to the frequency of parallel resonance of the second acoustic resonator, the branch parallel of the first quadripole having a first capacitance connected in series with the second resonator and, in parallel with the capacitance, a first switching transistor to short circuit the capacitance.Type: GrantFiled: February 13, 2009Date of Patent: March 4, 2014Assignees: STMicroelectronics S.A., Centre National de la Recherche ScientifiqueInventors: Didier Belot, Alexandre Augusto Shirakawa, Eric Kerherve, Moustapha El Hassan, Yann Deval
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Publication number: 20130271304Abstract: Continuous time analogue/digital converter, comprising a sigma delta modulator (MSD1) configured to receive an analogue input signal (x(t)) and comprising high-pass filtering means (MF) the chopping frequency of which is equal to half of the sampling frequency (Fs) of the quantization means (QTZ) of the modulator (MSD1).Type: ApplicationFiled: June 10, 2013Publication date: October 17, 2013Inventors: Didier Belot, Jean-Baptiste Begueret, Yann Deval, Dominique Dallet, André Mariano
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Patent number: 8502574Abstract: Device for generating a signal of parametrizable frequency comprising a phase locked loop including a generator of a reference signal, a phase-frequency comparator comprising a first input for receiving the reference signal, an oscillator controlled on the basis of the result output by the phase-frequency comparator, a fractional divider coupled between an output of the oscillator and a second input of the phase-frequency comparator, and a selector selectively linking an input of the oscillator either with an input of the generator, or with the output of the oscillator as a function of the multiplication ratio of the fractional divider.Type: GrantFiled: September 9, 2011Date of Patent: August 6, 2013Assignee: STMicroelectronics SAInventors: Didier Belot, Pierre-Olivier Lucas De Peslouan, Cédric Majek, Yann Deval, Thierry Taris, Jean-Baptiste Begueret
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Patent number: 8462031Abstract: Continuous time analogue/digital converter, comprising a sigma delta modulator (MSD1) configured to receive an analogue input signal (x(t)) and comprising high-pass filtering means (MF) the chopping frequency of which is equal to half of the sampling frequency (Fs) of the quantization means (QTZ) of the modulator (MSD1).Type: GrantFiled: February 10, 2011Date of Patent: June 11, 2013Assignees: STMicroelectronics SA, Centre National de Recherche Scientifique (CNRS)Inventors: Didier Belot, Jean-Baptiste Begueret, Yann Deval, Dominique Dallet, André Mariano
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Patent number: 8461941Abstract: A bulk acoustic wave resonator has an adjustable resonance frequency. A piezoelectric element is provided having first and second electrodes. A switching element is provided in the form of a MEMS structure which is deformable between a first and second position. The switching element forms an additional electrode that is selectively disposed on top of, and in contact with, one of the first and second electrodes. This causes a total thickness of the electrode of the resonator to be changed resulting in a modification of the resonance frequency of the resonator.Type: GrantFiled: January 15, 2008Date of Patent: June 11, 2013Assignees: STMicroelectronics S.A., Centre National de la Recherche ScientifiqueInventors: Didier Belot, Andréia Cathelin, Yann Deval, Moustapha El Hassan, Eric Kerherve, Alexandre Shirakawa
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Patent number: 8242845Abstract: A radiofrequency signal power amplification circuit may include a signal input for receiving the radiofrequency signal, an amplification stage coupled to the signal input and having at least one power transistor, a biasing stage for delivering a bias voltage to the amplification stage, and a processing stage. The processing stage may include a processing input coupled to the signal input, a processing output for delivering a bias current modulated at least in amplitude to the biasing stage, and an amplitude modulator coupled between the processing input and the processing output and configured to determine an envelope signal representative of the envelope of the radiofrequency signal, for modulating the amplitude of the envelope signal based on a variable voltage setpoint and for generating the amplitude-modulated bias current based on the modulated envelope signal.Type: GrantFiled: July 22, 2010Date of Patent: August 14, 2012Assignee: STMicroelectronics SAInventors: Didier Belot, Laurent Leyssenne, Eric Kerherve, Yann Deval
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Patent number: 8238508Abstract: A device for extracting a clock signal from a baseband serial signal, includes an injection-locked oscillator (19), a phase-locked loop (25) including a digital phase detector (26). The oscillator (19) includes a digital input for controlling the value of its natural frequency, and the phase-locked loop (25) includes a counting circuit (30, 35) aggregating the relative values of the digital signal supplied by the digital phase detector (26) and supplying a control signal in digital form for the oscillator (19).Type: GrantFiled: April 4, 2008Date of Patent: August 7, 2012Assignee: Centre National d'Etudes Spatiales (C.N.E.S.)Inventors: Michel Pignol, Claude Neveu, Yann Deval, Jean-Baptiste Begueret, Olivier Mazouffre
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Publication number: 20120062288Abstract: Device for generating a signal of parametrizable frequency comprising a phase locked loop including a generator of a reference signal, a phase-frequency comparator comprising a first input for receiving the reference signal, an oscillator controlled on the basis of the result output by the phase-frequency comparator, a fractional divider coupled between an output of the oscillator and a second input of the phase-frequency comparator, and a selector selectively linking an input of the oscillator either with an input of the generator, or with the output of the oscillator as a function of the multiplication ratio of the fractional divider.Type: ApplicationFiled: September 9, 2011Publication date: March 15, 2012Applicants: Centre National de la Recherche Scientifique(CNRS), STMicroelectronics SAInventors: Didier Belot, Pierre-Olivier Lucas De Peslouan, Cédric Majek, Yann Deval, Thierry Taris, Jean-Baptiste Begueret
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Patent number: 8115547Abstract: A reconfigurable power amplifier includes at least one amplification circuit (E1, E2), and a circuit (6) for controlling the amplification circuit so as to adapt its operation according to an applied input signal (RFin). The circuit for controlling includes a circuit (4, 5) for modifying the compression point of the amplification circuit and for adapting the gain of the amplification circuit in such a manner as to increase the power added efficiency of the circuit for the modified compression point.Type: GrantFiled: January 14, 2008Date of Patent: February 14, 2012Assignees: STMicroelectronics S.A., Centre National de la Recherche ScientifiqueInventors: Didier Belot, Yann Deval, Eric Kerherve, Nathalie Deltimple, Pierre Jarry
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Publication number: 20120001665Abstract: A fractional frequency divider including a frequency division unit for generating a reduced frequency timing signal having j pulses for every k pulses of an original timing signal, wherein j and k are each integers; and phase correction circuitry adapted to selectively shift each jth pulse of the reduced frequency timing signal by a first fixed time period.Type: ApplicationFiled: June 29, 2011Publication date: January 5, 2012Applicants: Centre National de la Recherche Scientifique, STMicroelectronics S.A.Inventors: Nicolas Regimbal, Franck Badets, Yann Deval, Jean-Baptiste Begueret