The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 2010
Filed:
Aug. 30, 2007
William R. Mcgrath, Monrovia, CA (US);
William R. McGrath, Monrovia, CA (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
A remote-detection system is provided for monitoring changes in permittivity associated with physiological activity of a subject that is free to move. The system includes a source containing an oscillator configured to illuminate tissue of the subject with an electromagnetic signal beam. The system further includes a receiver configured to receive reflections of the electromagnetic signal beam from the subject. The reflections include amplitude variations indicative of motion of the illuminated tissue and amplitude variations indicative of time dependent variations in the permittivity of the illuminated tissue associated with electrical activity of the subject's heart. The system further includes a detector connected to the receiver and configured to extract from the reflected signal beam the variations in amplitude indicative of motion of the illuminated tissue or indicative of time dependent variations in the permittivity of the illuminated tissue associated with the electrical activity of the subject's heart.