Abstract: A capacitive interface device, includes a detection surface with one or more first capacitive electrodes extending in a first direction (X), second capacitive electrodes extending in a second direction (Y), third capacitive electrodes arranged in a matrix between the second capacitive electrodes and facing the one or more first capacitive electrodes, and linking tracks electrically connected within the detection surface to a plurality of adjacent third capacitive electrodes.

Abstract: A method is provided for capacitive detection, implementing a plurality of electrodes capable of allowing the detection of objects in their proximity by capacitive coupling, and including a step of simultaneous polarization of at least a part of the electrodes with different excitation potentials, the excitation potentials being generated with respect to a reference potential such that the scalar product over a predetermined duration of at least two of these excitation potentials is zero or very much less than the scalar product of one and/or the other of these excitation potentials with itself over the predetermined duration. A device and an appliance implementing the method are also provided.

Abstract: A capacitive detection device includes: at least one capacitive measurement electrode; a current detector electrically referenced to a common ground; at least one alternating voltage excitation source electrically connected or coupled to a measurement input of the current detector and to the at least one capacitive measurement electrode; guard elements electrically connected or coupled to the measurement input of the current detector; power supply generation apparatus suitable for generating at least one secondary power supply source referenced to the electrical potential of the guard elements, the power supply generation apparatus also being arranged so as to have, within a frequency band extending from direct current, an impedance between the common ground and the guard elements with a reactive component of a capacitive or essentially capacitive type, or comparable to an open circuit.

Abstract: A capacitive interface device, includes a detection surface with one or more first capacitive electrodes extending in a first direction (X), second capacitive electrodes extending in a second direction (Y), third capacitive electrodes arranged in a matrix between the second capacitive electrodes and facing the one or more first capacitive electrodes, and linking tracks electrically connected within the detection surface to a plurality of adjacent third capacitive electrodes.

Abstract: The present invention relates to a method for filtering a measurement signal Mi resulting from a capacitive coupling between a measurement electrode and at least one object of interest, which comprises the steps of (i) generating a filtered signal Mo from the measurement signal Mi, with the application of an adaptive filtering function implementing a strength parameter Af depending on the measurement signal Mi at a preceding moment and an electrical noise, (ii) generating a derivative signal Der representative of variations of said filtered signal Mo, (iii) generating a compensated signal Moc, with a linear combination of said filtered signal Mo and said derivative signal Der. The invention also relates to an interface mechanism and an apparatus implementing the method.

Abstract: A method is provided for capacitive detection, implementing a plurality of electrodes capable of allowing the detection of objects in their proximity by capacitive coupling, and including a step of simultaneous polarization of at least a part of the electrodes with different excitation potentials, the excitation potentials being generated with respect to a reference potential such that the scalar product over a predetermined duration of at least two of these excitation potentials is zero or very much less than the scalar product of one and/or the other of these excitation potentials with itself over the predetermined duration. A device and an appliance implementing the method are also provided.