Verfahren und System zur Berührungslosen Biosignaldetektion unter Verwendung von Ultraschallsignalen

Details

Veröffentlichungs-Nr.

EP3769689

Aktenzeichen

EP20164495

Anmeldetag

20. März 2020

Veröffentlichung

12. Februar 2025

Erteilung

12. Februar 2025

Rechtsraum

EP

IPC

A61B8/02A61B8/08A61B5/02A61B5/024A61B5/08A61B5/113

Abstract

This disclosure relates generally to bio-signal detection, and more particularly to method and system for non-contact bio-signal detection using ultrasound signals. In an embodiment, the method includes acquiring an in-phase I(t) baseband signal and a quadrature Q(t) baseband signal associated with an ultrasound signal directed from the sensor assembly towards the target. Magnitude and phase signals are calculated from the in-phase and quadrature baseband signals, and are filtered by passing through a band pass filter associated with a predefined frequency range to obtain filtered magnitude and phase signals. Fast Fourier Transformation (FFT) of the filtered magnitude and phase signals is performed to identify frequency of dominant peaks of spectrum of the magnitude and phase signals in the ultrasound signal. Value of the bio-signal associated with the target is determined based on weighted values of the frequency of the dominant peaks of the magnitude and phase signals.

Anmelder

Firma

Tata Consultancy Services Limited

Land

🇮🇳 Indien

Fachgebiete