Motion-dependent averaging for physiological metric estimating systems and methods
AssigneeValencell, Inc.
InventorEric Douglas Romesburg
Life of this patent
Estimating the term…
Abstract
Physiological signal processing systems include a photoplethysmograph (PPG) sensor that is configured to generate a physiological waveform, and an inertial sensor that is configured to generate a motion signal. A physiological metric extractor is configured to extract a physiological metric from the physiological waveform that is generated by the PPG sensor. The physiological metric extractor includes an averager that has an impulse response that is responsive to the strength of the motion signal. Related methods are also described.
Claims43
A physiological signal processing system comprising:
- a photoplethysmograph (PPG) sensor that is configured to generate a physiological waveform;
- an inertial sensor that is configured to generate a motion signal;
- and
- a physiological metric extractor that is configured to extract a physiological metric from the physiological waveform that is generated by the PPG sensor;
- the physiological metric extractor including an averager having an impulse response that is responsive to the motion signal.
-7. (canceled)
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
A physiological signal processing system for a physiological waveform that is generated by a photoplethysmograph (PPG) sensor and a motion signal, the physiological signal processing system comprising:
- a physiological metric extractor that is configured to extract a physiological metric from the physiological waveform that is generated by the PPG sensor;
- the physiological metric extractor including an averager having an averaging window size that is responsive to the motion signal.
(canceled)
(canceled)
(canceled)
(canceled)
(canceled)
A physiological signal processing method comprising:
- setting an impulse response in response to a motion signal;
- averaging a physiological waveform that is generated by a photoplethysmograph (PPG) sensor based on the impulse response that was set;
- and
- extracting a physiological metric from the physiological waveform that was averaged.
(canceled)
(canceled)
(canceled)
A physiological signal processing method comprising:
- setting an averaging window size in response to a motion signal;
- averaging a physiological waveform that is generated by a photoplethysmograph (PPG) sensor based on the averaging window size that was set;
- and
- extracting a physiological metric from the physiological waveform that was averaged.
A physiological signal processing method according to claim 39 wherein the setting comprises setting an averaging window size in response to a strength of the motion signal.
(canceled)
(canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.