Wearable System for Detecting and Measuring Biosignals

摘要

A system for detecting bioelectrical signals of a user comprising: a set of sensors configured to detect bioelectrical signals from the user, each sensor in the set of sensors configured to provide non-polarizable contact at the body of the user; an electronics subsystem comprising a power module configured to distribute power to the system and a signal processing module configured to receive signals from the set of sensors; a set of sensor interfaces coupling the set of sensors to the electronics subsystem and configured to facilitate noise isolation within the system; and a housing coupled to the electronics subsystem, wherein the housing facilitates coupling of the system to a head region of the user.

主权项

1. A system for detecting bioelectrical signals of a user and reducing noise, comprising:
a set of sensors configured to detect bioelectrical signals from the user, each sensor in the set of sensors positioned proximal to a region of the scalp of the user upon coupling of the system to the user, wherein the set of sensors includes a common mode sensor configured to detect an ambient signal through the scalp of the user; an electronics subsystem comprising a digital electronics subsystem and an analog electronics subsystem separated from and coupled to the digital electronics subsystem by an inter-board connection, the analog electronics subsystem comprising a hum remover configured to sample the ambient signal of the common mode sensor, to integrate the ambient signal with a square wave signal to produce a driven right leg signal, and to feed the driven right leg signal to the user by way of the set of sensors, wherein a frequency of the square wave signal is higher than a frequency range corresponding to bioelectrical signals of the user; a housing surrounding the set of sensors and the electronics subsystem, comprising a set of arms configured to position each sensor in the set of sensors proximal to the region of the scalp of the user upon coupling of the system to the user; and a set of sensor interfaces configured to couple the set of sensors to the electronics subsystem through the set of arms of the housing and to amplify and shift bioelectrical signal voltages transmitted to the electronics subsystem.