Health monitoring and guidance
AssigneeLivmor, Inc.
InventorsKen Persen, Ross Grady Baker
Life of this patent
Estimating the term…
Abstract
A photoplethysmographic (PPG) signal communicated by a PPG sensor of a wearable device worn by a user may be received by a processor. The processor may detect a plurality of heartbeats of the user from the PPG-signal, determine a heart rate of the user based on at least the plurality of heartbeats, determine a heart rate variability (HRV) based on the plurality of heartbeats, determine a respiration rate of the user based on a low frequency component of the PPG signal, and determine whether the user is in a stressed state based on the heart rate, the HRV, and the respiration rate. The processor may cause the display of information related to the stress state of the user, and instructions and/or advice for reducing a stress level of the user.
Claims35
A computer program product comprising a non-transitory, machine-readable medium storing instructions which, when executed by at least one programmable processor, cause the at least one programmable processor to perform operations comprising:
- receiving, at the at least one programmable processor, a photoplethysmographic (PPG) signal communicated by a PPG sensor of a wearable device worn by a user;
- detecting a plurality of heartbeats of the user based on the PPG-signal;
- determining a heart rate of the user based on at least the plurality of heartbeats;
- determining a heart rate variability (HRV) of the user based on the plurality of heartbeats;
- determining a respiration rate of the user based on a low frequency component of the PPG signal;
- and
- determining whether the user is in a stressed state based on the heart rate, the HRV, and the respiration rate.
A wrist worn device configured to determine whether a user is in a stressed state, the wrist worn device comprising:
- a photoplethysmographic (PPG) sensor configured to generate a PPG signal;
- at least one programmable processor and a non-transitory, machine-readable medium storing instructions which, when executed by the at least one programmable processor, cause the at least one programmable processor to perform operations comprising:
- receiving, at the at least one programmable processor, the PPG signal communicated by the PPG sensor;
- detecting a plurality of heartbeats of the user based on the PPG-signal;
- determining a heart rate of the user based on at least the plurality of heartbeats;
- determining a heart rate variability (HRV) of the user based on the plurality of heartbeats;
- determining a respiration rate of the user based on a low frequency component of the PPG signal;
- and
- determining whether the user is in a stressed state based on the heart rate, the HRV, and the respiration rate;
- and
- a user interface controlled by the at least one programmable processor, the user interface controlled by the at least one programmable processor to display information related to the determination of whether the user is in a stressed state.
A method for determining whether a user of a wearable device is in a stressed state, the method comprising:
- receiving, with at least one programmable processor, a photoplethysmographic (PPG) signal communicated by a PPG sensor of the wearable device worn by the user;
- detecting a plurality of heartbeats of the user based on the PPG-signal;
- determining a heart rate of the user based on at least the plurality of heartbeats;
- determining a heart rate variability (HRV) of the user based on the plurality of heartbeats;
- determining a respiration rate of the user based on a low frequency component of the PPG signal;
- and
- determining whether the user is in a stressed state based on the heart rate, the HRV, and the respiration rate.
Dependencies are inferred from the claim text.