Abstract: A MEMS resonant sensor adapted to generate a pulse output signal from a signal of interest, the signal of interest being a signal having a frequency oscillating around a carrier frequency, the MEMS sensor comprising at least one processing channel for processing the signal of interest, each processing channel comprising: a demodulation unit for demodulating the signal of interest in order to form a demodulated signal, the demodulation unit comprising a frequency mixer between the signal of interest and a reference signal, the demodulated signal having a low-frequency component and a high-frequency component; a filtration unit for filtering the demodulated signal in order to form a filtered signal, the filtration unit being adapted to allow through the low-frequency component of the demodulated signal; a comparison unit for comparing the filtered signal with a fixed threshold signal in order to form a comparison signal, the comparison signal comprising rising edges and falling edges; a detection unit for detec

Abstract: A processing system for processing signals from a plurality of transducers of an ultrasonic sensor in order to determine characteristic information relating to an object detected by the ultrasonic sensor is provided. The system comprises a coupling device for transforming the signals received from the transducers into pulses, and a pulse processing unit for determining the characteristic information based on the pulses delivered by the coupling device. The coupling device comprises: a thresholding unit for applying, for each signal received from a transducer, thresholding to a signal derived from the signal received from the transducer and extracting directional information contained in the phase of the derived signal; a transformation unit for transforming the derived signal into pulses containing the phase of the signal, using the information extracted by the thresholding unit.

Abstract: The present disclosure relates to a converter (1) converting a voltage (Vin) into time. The converter comprises a direct path (100) including a first injection-locked oscillator (104) and a first circuit (106). The first circuit is configured for receiving an output signal (?sens) of the first oscillator and a reference signal (?0), and for providing at least a first pulse signal (out) determined by a phase shift between the output signal (?sens) of the first oscillator and the reference signal (?0). The converter further comprises a feedback loop (102) comprising a second circuit (108) configured for integrating said at least one first pulse signal (out).

Abstract: A processing system for processing signals from a plurality of transducers of an ultrasonic sensor in order to determine characteristic information relating to an object detected by the ultrasonic sensor is provided. The system comprises a coupling device for transforming the signals received from the transducers into pulses, and a pulse processing unit for determining the characteristic information based on the pulses delivered by the coupling device. The coupling device comprises: a thresholding unit for applying, for each signal received from a transducer, thresholding to a signal derived from the signal received from the transducer and extracting directional information contained in the phase of the derived signal; a transformation unit for transforming the derived signal into pulses containing the phase of the signal, using the information extracted by the thresholding unit.