The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 20, 2026

Filed:

Jun. 09, 2021
Applicant:

Meta Platforms Technologies, Llc, Menlo Park, CA (US);

Inventor:

Markku Salkola, Los Altos, CA (US);

Assignee:

Meta Platforms Technologies, LLC, Menlo Park, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/021 (2006.01); A61B 5/00 (2006.01); A61B 5/024 (2006.01); A61B 5/346 (2021.01); G06N 3/08 (2023.01); G16H 30/40 (2018.01);
U.S. Cl.
CPC ...
A61B 5/02108 (2013.01); A61B 5/02416 (2013.01); A61B 5/7267 (2013.01); A61B 5/7278 (2013.01); G06N 3/08 (2013.01); G16H 30/40 (2018.01); A61B 5/346 (2021.01);
Abstract

A method for determining physiological characteristics is provided. The method involves causing light to be emitted by one or more light emitters toward a tissue of a user. The method involves obtaining samples of transmitted and/or reflected light. The method involves determining photoplethysmography (PPG) data based on the obtained samples. The method involves providing the PPG data as an input to a trained machine learning model, wherein the trained machine learning model has been trained, using a training set that comprises matched samples of electrocardiogram (ECG) data and PPG data. The method involves providing a blood pressure of the user based on an output of the trained machine learning model.


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