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US 2021/0259640 A1Published application
System and method of a biosensor for detection of health parameters
AssigneeSanmina Corporation
InventorsRobert Steven Newberry, Matthew Rodencal
Life of this patent
Estimating the term…
Abstract
A photoplethysmography (PPG) circuit obtains PPG signals at a plurality of wavelengths of light reflected from tissue of a user. A processing device generates parameters using the PPG signals to determine a glucose level in blood flow of the user. The parameters include one or more ratio values obtained using the plurality of PPG signals; a phase delay between the plurality of PPG signals; a correlation of phase shape between the plurality of PPG signals or a periodicity of one or more of the plurality of PPG signals.
Claims20
A system, comprising:
- an optical circuit configured to obtain a plurality of PPG signals at a plurality of wavelengths reflected from or transmitted through tissue of a user, wherein the plurality of wavelengths have varying penetration depths of tissue;
- one or more processing devices configured to:
- determine one or more PPG parameters using the plurality of PPG signals;
- and
- determine a health index using the one or more PPG parameters, wherein the health index indicates a vascular health of the user.
2 more elements
A device, comprising:
- at least one memory configured to store a plurality of PPG signals obtained using a plurality of wavelengths reflected from or transmitted through tissue of a user, wherein the plurality of wavelengths have varying penetration depths of the tissue of the user;
- and
- one or more processing circuits configured to:
- determine one or more R values using the plurality of PPG signals;
- determine one or more PPG parameters using the plurality of PPG signals;
- and
- determine a health index of the user using the one or more R values and the one or more PPG parameters.
4 more elements
A method, comprising:
- obtaining a plurality of PPG signals at a plurality of wavelengths reflected from or transmitted through tissue of a user, wherein the plurality of wavelengths have varying penetration depths of tissue;
- determining one or more PPG parameters using the plurality of PPG signals;
- and
- determining a health index using the one or more PPG parameters, wherein the health index indicates a vascular health of the user.
1 more element
Dependencies are inferred from the claim text.