Abstract: A device with a mobile element extending along a given plane comprising at least one first, one second and one third layers extending in planes parallel to the given plane, with the first layer forming a support, the second layer comprising all or a portion of the mobile element and means for suspending the mobile element with respect to the support and the third layer comprising all or a portion of the capacitive means of which the capacitance varies according to the relative position of the mobile element with respect to the support, said capacitive means comprising at least one mobile electrode integral with one of the faces of the mobile element parallel to the given plane, and at least one fixed electrode with respect to the support, with the fixed and mobile electrodes being arranged at least partially in the same plane parallel to the given plane and at least partially above and/or below the mobile element.

Abstract: Dynamic pressure sensor of MEMS and/or NEMS type comprising a support and a rigid sensitive element anchored to the support by at least one anchoring zone, said sensitive element comprising a parallel first and a second face intended to be subjected to different pressures, said sensitive element being capable of having an out-of-plane displacement with respect to the support in a detection direction under the effect of a pressure difference, the pressure sensor also comprising a detector of a force applied to the sensitive element by the pressure difference.

Abstract: A device with a mobile element extending along a given plane comprising at least one first, one second and one third layers extending in planes parallel to the given plane, with the first layer forming a support, the second layer comprising all or a portion of the mobile element and means for suspending the mobile element with respect to the support and the third layer comprising all or a portion of the capacitive means of which the capacitance varies according to the relative position of the mobile element with respect to the support, said capacitive means comprising at least one mobile electrode integral with one of the faces of the mobile element parallel to the given plane, and at least one fixed electrode with respect to the support, with the fixed and mobile electrodes being arranged at least partially in the same plane parallel to the given plane and at least partially above and/or below the mobile element.

Abstract: A measurement circuit for a sensor, the measurement circuit includes at least one detection branch including at least a first series of at least one dipole and a second series of at least one dipole, the series being connected in parallel and connected at their inputs to a common input terminal, each series of dipole being connected to a distinct output terminal, and an electronic circuit including a bias circuit configured to apply a bias current to the detection branch from the input terminal, and a read circuit configured to impose on each output terminal the same potential referred to as the “reference potential”; the electronic circuit including a determination circuit for determining variations in impedances of each series of dipole of the detection branch on the basis of the current applied to each output terminal by the read circuit so as to keep the potentials equal.

Abstract: An analog finite impulse response (AFIR) filter including at least one variable transconductance block having an input for receiving an input voltage and being adapted to sequentially apply each of a plurality of transconductance levels to the input voltage during at least one of a plurality of successive time periods to generate an output current at an output of the variable transconductance block, the at least one variable transconductance block including a plurality of fixed transconductance blocks each receiving the input voltage and capable of being independently activated to supply the output current; and a capacitor coupled to the output of the variable transconductance block to receive the output current and provide an output voltage of the filter.

Abstract: An analog finite impulse response (AFIR) filter including at least one variable transconductance block having an input for receiving an input voltage and being adapted to sequentially apply each of a plurality of transconductance levels to the input voltage during at least one of a plurality of successive time periods to generate an output current at an output of the variable transconductance block, the at least one variable transconductance block including a plurality of fixed transconductance blocks each receiving the input voltage and capable of being independently activated to supply the output current; and a capacitor coupled to the output of the variable transconductance block to receive the output current and provide an output voltage of the filter.

Abstract: The invention relates to a method for the filtering and analog/digital conversion of an incoming analog signal including an analog filtering of the incoming analog signal so as to filter the frequency components located outside a desired frequency band, and a conversion of the filtered analog signal to a digital signal. The digital signal is reformatted in a form that is substantially similar, at least in the desired frequency band, to the form of the incoming analog signal. A final digital filtering of the reformatted digital signal is performed so as to filter the frequency components located outside the desired frequency band.

Abstract: A method is for processing an incident signal, in which the incident signal is delivered to a transconductor stage, and a current output of the transconductor stage is coupled to an output capacitor so as to deliver to the output capacitor a current signal lasting for at least part of the first half-period of each period of a periodic signal and to thus obtain a frequency-transposed signal at the output capacitor. Upon the occurrence of each part of the first half-period, the voltage of the current output, seen from the output capacitor, is reset to a value equal to that of the voltage of the output capacitor.

Abstract: An analog finite impulse response filter including at least one variable transconductance block having an input for receiving an input voltage and being adapted to sequentially apply each of a plurality of transconductance levels to the input voltage during at least one of a plurality of successive time periods to generate an output current at an output of the variable transconductance block, the at least one variable transconductance block including a plurality of fixed transconductance blocks each receiving the input voltage and capable of being independently activated to supply the output current; and a capacitor coupled to the output of the variable transconductance block to receive the output current and provide an output voltage of the filter.

Abstract: The method and device include the filtering and the analog/digital conversion of an intermediate signal. The intermediate signal is processed by a filtering and analog/digital conversion circuit that is configurable using switched passive capacitor technology. The various configurations successively adopted by the circuit provide filtering and analog/digital conversion to be successively carried out.

Abstract: A method for sampling an analogue radiofrequency signal comprising reception of the analogue radiofrequency signal, sending of the received signal on two analogue channels, each channel performing a first signal sampling operation, including a filtering step eliminating signal frequencies that could fold on the useful signal during sampling such that the sampled signal represents a filtered version of the received signal, wherein the sampling frequency is taken to be equal to the frequency of the signal carrier divided by a factor Ndiv1+½, Ndiv1 being an integer number, to bring the useful signal to half of the sampling frequency after sampling.

Abstract: The method and device include the filtering and the analog/digital conversion of an intermediate signal. The intermediate signal is processed by a filtering and analog/digital conversion circuit that is configurable using switched passive capacitor technology. The various configurations successively adopted by the circuit provide filtering and analog/digital conversion to be successively carried out.

Abstract: A method is for processing an incident signal, in which the incident signal is delivered to a transconductor stage, and a current output of the transconductor stage is coupled to an output capacitor so as to deliver to the output capacitor a current signal lasting for at least part of the first half-period of each period of a periodic signal and to thus obtain a frequency-transposed signal at the output capacitor. Upon the occurrence of each part of the first half-period, the voltage of the current output, seen from the output capacitor, is reset to a value equal to that of the voltage of the output capacitor.

Abstract: The invention relates to a method for the filtering and analog/digital conversion of an incoming analog signal including an analog filtering of the incoming analog signal so as to filter the frequency components located outside a desired frequency band, and a conversion of the filtered analog signal to a digital signal. The digital signal is reformatted in a form that is substantially similar, at least in the desired frequency band, to the form of the incoming analog signal. A final digital filtering of the reformatted digital signal is performed so as to filter the frequency components located outside the desired frequency band.

Abstract: A method for sampling an analogue radiofrequency signal comprising reception of the analogue radiofrequency signal, sending of the received signal on two analogue channels, each channel performing a first signal sampling operation, including a filtering step eliminating signal frequencies that could fold on the useful signal during sampling such that the sampled signal represents a filtered version of the received signal, wherein the sampling frequency is taken to be equal to the frequency of the signal carrier divided by a factor Ndiv1+½, Ndiv1 being an integer number, to bring the useful signal to half of the sampling frequency after sampling.

Abstract: A method for generating a signal with a frequency equal to a product of a reference frequency and a real number includes providing an output signal from an oscillator, and performing a first integer division of a frequency of the output signal by a first integer divider to obtain a first intermediate signal. A first measurement signal representative of a time difference between the first intermediate signal and a reference signal having the reference frequency is determined. The method further includes generating a first comparison signal derived from the first measurement signal, and generating a second comparison signal dependent on a period of the reference signal, on integer and decimal parts of the real number and on the first integer divider. The first and second comparison signals are compared to obtain an error signal representative of a time difference between a period of a current output signal and the period of the reference signal.

Abstract: A method for generating a signal with a frequency equal to a product of a reference frequency and a real number includes providing an output signal from an oscillator, and performing a first integer division of a frequency of the output signal by a first integer divider to obtain a first intermediate signal. A first measurement signal representative of a time difference between the first intermediate signal and a reference signal having the reference frequency is determined. The method further includes generating a first comparison signal derived from the first measurement signal, and generating a second comparison signal dependent on a period of the reference signal, on integer and decimal parts of the real number and on the first integer divider. The first and second comparison signals are compared to obtain an error signal representative of a time difference between a period of a current output signal and the period of the reference signal.