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:
Sep. 17, 2024
Filed:
Dec. 11, 2019
Koninklijke Philips N.v., Eindhoven, NL;
Gerard De Haan, Helmond, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The present invention relates to a system and method for determining a vital sign of a subject. To improve the detection of electromagnetic radiation reflected from or transmitted through skin of a subject () at least two differently modulated radiation sources () are used. For both camera and single-element sensors, this allows access (after demodulation) to different mixtures of skin and non-skin reflections/transmissions that can be de-mixed and successively allows the skin-only signal to be used for photo-plethysmography, PPG, extraction. Thus, a sensor () detects the reflected or transmitted electromagnetic radiation and a demodulation unit () and processing unit () enable to determine a vital sign () from said detection signal.