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.
Patent No.:
Date of Patent:
Mar. 16, 2021
Filed:
Jun. 26, 2018
Applicant:
Sanmina Corporation, San Jose, CA (US);
Inventor:
Robert Steven Newberry, New Hope, AL (US);
Assignee:
Sanmina Corporation, San Jose, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/1455 (2006.01); A61B 5/024 (2006.01); A61B 5/00 (2006.01); A61B 5/145 (2006.01);
U.S. Cl.
CPC ...
A61B 5/7275 (2013.01); A61B 5/0002 (2013.01); A61B 5/0022 (2013.01); A61B 5/02416 (2013.01); A61B 5/1455 (2013.01); A61B 5/14532 (2013.01); A61B 5/14551 (2013.01); A61B 5/6817 (2013.01); A61B 5/743 (2013.01); A61B 5/6826 (2013.01); A61B 5/7225 (2013.01); A61B 2560/0223 (2013.01);
Abstract
A biosensor identifies a blood type using photoplethysmography (PPG) technology. A PPG circuit obtains a plurality of spectral responses at a plurality of wavelengths detected from skin of a user. A processing circuit determines a blood factor indicator using the plurality of spectral responses. The blood factor indicator may include a signal quality parameter or a ratio R value. A calibration database includes a correlation of the blood factor indicator to a plurality of blood types. The blood type of the user is identified using the blood factor indicator and the calibration database.