Wearable system for detecting and measuring biosignals
First Claim
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 proximal to a region of a scalp of the user;
a set of sensor interfaces coupled to the set of sensors, wherein the set of sensor interfaces is configured to receive the bioelectrical signals, each of the set of sensor interfaces comprising a pre-gain alternating current (AC) coupling and level shift configured to block direct current (DC) signals;
an electronics subsystem coupled to the set of sensor interfaces, the electronics subsystem comprising;
an analog electronics subsystem configured to receive the bioelectrical signals from the set of sensor interfaces, the analog electronics subsystem comprising a hum remover configured to;
superimpose an ambient signal, from the set of sensor interfaces, with a predetermined signal having a frequency outside of a frequency range of the bioelectrical signals, to produce a calibration signal; and
apply the calibration signal to the user through at least one sensor of the set of sensors to determine a contact impedance of each individual sensor;
a digital electronics subsystem distinct from and connected to the analog electronics subsystem; and
a housing comprising a set of arms configured to position the set of sensors proximal to the scalp of the user upon coupling of the system to the user.
3 Assignments
0 Petitions
Accused Products
Abstract
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.
81 Citations
20 Claims
-
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 proximal to a region of a scalp of the user; a set of sensor interfaces coupled to the set of sensors, wherein the set of sensor interfaces is configured to receive the bioelectrical signals, each of the set of sensor interfaces comprising a pre-gain alternating current (AC) coupling and level shift configured to block direct current (DC) signals; an electronics subsystem coupled to the set of sensor interfaces, the electronics subsystem comprising; an analog electronics subsystem configured to receive the bioelectrical signals from the set of sensor interfaces, the analog electronics subsystem comprising a hum remover configured to; superimpose an ambient signal, from the set of sensor interfaces, with a predetermined signal having a frequency outside of a frequency range of the bioelectrical signals, to produce a calibration signal; and apply the calibration signal to the user through at least one sensor of the set of sensors to determine a contact impedance of each individual sensor; a digital electronics subsystem distinct from and connected to the analog electronics subsystem; and a housing comprising a set of arms configured to position the set of sensors proximal to the scalp of the user upon coupling of the system to the user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. 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 proximal to a region of a scalp of the user; a set of sensor interfaces coupled to the set of sensors, wherein the set of sensor interfaces is configured to amplify and shift bioelectrical signal voltages transmitted to an electronics subsystem; the electronics subsystem coupled to the set of sensor interfaces, the electronics subsystem comprising; an analog electronics subsystem configured to receive the preprocessed bioelectrical signals from the set of sensor interfaces, the analog electronics subsystem comprising a hum remover configured to; superimpose an ambient signal, received from the set of sensor interfaces, with a predetermined signal to produce a calibration signal; and apply the calibration signal to the user through at least one sensor of the set of sensors; a digital electronics subsystem distinct from and coupled to the analog electronics subsystem through an inter-board connection; and a housing comprising a set of arms configured to position the set of sensors proximal to the scalp of the user upon coupling of the system to the user. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification