NON-CONTACT SENSING OF PHYSIOLOGICAL SIGNALS

摘要

A non-contact monitoring system can include an electrode configured to detect electrical signals from a surface of a subject's body without directly contacting the surface of the subject's body (e.g., via capacitive coupling). The electrode can be positioned at a spaced apart distance from the subject's body (e.g., ranging up to about 30 cm). The signals from the electrodes can be processed in the analog and digital domain to determine one or more physiological conditions of a subject, such as drowsiness.