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US 2014/0276118 A1Published application
Method and System for Contactless Detection of Cardiac Activity
AssigneeRochester Institute of Technology
InventorsGill R. Tsouri, Sohail Dianat
Life of this patent
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Abstract
A system and method include contactless detecting and tracking cardiac activity by making use of a feedback control system, such as a Phase Locked Loop (PLL), in real-time or from a prerecorded signal stream.
Claims26
A method for contactless detection of cardiac activity of a subject, comprising:
- capturing a signal from incident light reflected off the skin of the subject;
- and
- feeding the captured signal to a feedback control system designed to lock and track over time a frequency corresponding to an expected range of heart rate.
A system for contactless detection of cardiac activity of a subject, comprising:
- a detector designed to capture a signal from incident light reflected off the skin of the subject;
- a feedback control system in signal communication with the detector, the feedback control system designed to lock and track over time the signal frequency produced by the detector corresponding to an expected range of heart rate;
- and
- a device designed to exhibit the frequency of the tracked signal over time.
1 more element
Dependencies are inferred from the claim text.