Abstract: A capacitive proximity sensor (1) comprising a microcontroller (20) which is configured to perform measurements in a repetitive predetermined sequence, said sequence comprising a series of N consecutive measurements, N being a natural integer greater than or equal to three, wherein, with the period between two consecutive analog-to-digital conversions of the first measurement of the series being called a reference period, the period between two analog-to-digital conversions of a measurement m of the series, m being a natural integer comprised between 2 and N, is defined as being equal to the reference period plus the product of (m?1) and a predetermined additional unitary period. The additional unitary period is equal to half the period needed to shift a noise sensitivity peak of the sensor (1) by half its frequency width.

Abstract: Disclosed is an inductive detection sensor for unlocking a vehicle opening, the sensor particularly being able to be mounted in the opening and including a printed circuit, on which an inductive coil and a management module are mounted, which module is able to detect a variation in the electromagnetic field at the terminals of the inductive coil, the sensor including a visible pressure component, which is at least partially metal, at least partially arranged in line with the inductive coil and being able to move relative to the inductive coil after a pressure is directly exerted onto the pressure component by a user, the management module being able to control the unlocking of the opening following the detection of a variation in the electromagnetic field at the terminals of the inductive coil following a movement of the visible pressure component by a user.

Abstract: A device for detecting the presence of a user for the unlocking of an access point to a motor vehicle, includes a first generator of a first supply voltage, a detection capacitor adapted to be charged on account of the presence of a user, and a storage capacitor defining at the terminals thereof a storage voltage. The device also includes an intermediate capacitor, elements for charging the detection capacitor from the first supply voltage and the storage voltage, elements for discharging the detection capacitor into the intermediate capacitor, elements for charging the storage capacitor, the elements being configured so that the charge of the storage capacitor is equal to the charge of the intermediate capacitor, and elements for detecting the presence of a user for the unlocking of an access point to the motor vehicle on the basis of the charge of the storage capacitor.

Abstract: A device for detecting the presence of a user for the unlocking of an access point to a motor vehicle, includes a first generator of a first supply voltage, a detection capacitor adapted to be charged on account of the presence of a user, and a storage capacitor defining at the terminals thereof a storage voltage. The device also includes an intermediate capacitor, elements for charging the detection capacitor from the first supply voltage and the storage voltage, elements for discharging the detection capacitor into the intermediate capacitor, elements for charging the storage capacitor, the elements being configured so that the charge of the storage capacitor is equal to the charge of the intermediate capacitor, and elements for detecting the presence of a user for the unlocking of an access point to the motor vehicle on the basis of the charge of the storage capacitor.