Abstract: A system for the automatic localization of electrode spatial position on the surface of a conductive body, having a processing unit, which: in response to electrical current injections at first electrodes, acquires voltages measured at second electrodes on the surface of the conductive body; using an electrical impedance model of the conductive body, simulates the electrical current injections at the first electrodes and estimates, for each electrical current injection, a resulting body surface potential on the surface of the conductive body; and performs a combined processing of the voltages measured at the second electrodes and of the estimated body surface potential, in order to determine the locations of the second electrodes on the surface of the conductive body.

Abstract: A method based on pulse wave analysis for monitoring cardiovascular vital signs, including: measuring a photoplethysmography (PPG) signal during a measurement time period such as to obtain a time series of PPG pulses; and during the measurement time period, identifying individual PPG pulses in the PPG signal, each PPG pulse corresponding to a PPG pulse cycle. For each PPG pulse, the method uses a pulse-wave analysis technique to determine, within the pulse cycle, at least one of: a time-related feature comprising a time duration and a normalized amplitude-related pulse-related feature and a SNR-related pulse-related. For each PPG pulse, a machine learning model is used in combination with the determined time-related, normalized amplitude-related and SNR-related features, to classify each PPG pulse in the pre-processed PPG signal as “normal”, “pathological” or “non-physiological” such as to output a time series of pulse classes.

Abstract: A method for identifying the position of loudspeaker boxes in a loudspeaker box arrangement includes the operation of a first loudspeaker box in the loudspeaker box arrangement as an acoustic test signal generator. An acoustic test signal from the first loudspeaker box is received at other loudspeaker boxes in the loudspeaker box arrangement. A positional relationship between the signal-generating first loudspeaker box and at least one of the other loudspeaker boxes in the loudspeaker box arrangement is ascertained on the basis of the acoustic test signal received in the other loudspeaker boxes.

Abstract: A method for identifying the position of loudspeaker boxes in a loudspeaker box arrangement comprises the operation of a first loudspeaker box in the loudspeaker box arrangement as an acoustic test signal generator; the reception of the acoustic test signal from the first loudspeaker box at other loudspeaker boxes in the loudspeaker box arrangement; and the ascertainment of a positional relationship between the signal-generating first loudspeaker box and at least one of the other loudspeaker boxes in the loudspeaker box arrangement on the basis of the acoustic test signal received in the other loudspeaker boxes.