Synthetic aperture photoplethysmography sensor
First Claim
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1. A method of conditionally combining photoplethysmography (PPG) measurements comprising:
- providing a toilet, the toilet comprising a toilet seat, the toilet seat comprising a group of contiguous PPG sensors and at least one weight sensor, wherein the at least one weight sensor is in communication with the group of contiguous PPG sensors;
obtaining a weight detection from the at least one weight sensor when a user is seated on the toilet seat;
transmitting a signal from the weight sensor to the group of contiguous PPG sensors;
actuating the group of contiguous PPG sensors;
obtaining PPG measurements from the group of contiguous PPG sensors;
combining the PPG measurements into one or more conditional combinations based on timing data and signal-to-noise ratio data corresponding to each of the PPG measurements;
wherein the timing data is collected by a PPG sensor with low or high intensity values which change relative to a user'"'"'s heart beating; and
using the one or more conditional combinations to determine a cardiac function of a toilet user.
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Abstract
A synthetic aperture photoplethysmography (PPG) sensor is disclosed. A group or matrix of contiguous PPG sensors located on a toilet seat are conditionally combined based on sensor measurements. Conditional combinations may be based on timing data and signal-to-noise ratio data of each of the PPG measurements. Measurements associated with the conditional combinations are then used to determine a cardiac function of a toilet user.
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13 Claims
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1. A method of conditionally combining photoplethysmography (PPG) measurements comprising:
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providing a toilet, the toilet comprising a toilet seat, the toilet seat comprising a group of contiguous PPG sensors and at least one weight sensor, wherein the at least one weight sensor is in communication with the group of contiguous PPG sensors; obtaining a weight detection from the at least one weight sensor when a user is seated on the toilet seat; transmitting a signal from the weight sensor to the group of contiguous PPG sensors; actuating the group of contiguous PPG sensors; obtaining PPG measurements from the group of contiguous PPG sensors; combining the PPG measurements into one or more conditional combinations based on timing data and signal-to-noise ratio data corresponding to each of the PPG measurements; wherein the timing data is collected by a PPG sensor with low or high intensity values which change relative to a user'"'"'s heart beating; and using the one or more conditional combinations to determine a cardiac function of a toilet user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification