IDiyas

For the Inventor, By the Inventor

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.:

US 11131724 B1

PDFFull Text
Date of Patent:
Sep. 28, 2021

Filed:

Apr. 30, 2020

Systems and methods for measuring current output by a photodetector of a wearable sensor unit that includes one or more magnetometers

Applicant:

HI Llc, Los Angeles, CA (US);

Inventors:

Stephen Garber, Santa Monica, CA (US);

Jerry Leung, Marina Del Rey, CA (US);

Ethan Pratt, Santa Clara, CA (US);

Hooman Mohseni, Wilmette, IL (US);

Jamu Alford, Simi Valley, CA (US);

Dakota Blue Decker, Culver City, CA (US);

Jeffery Kang Gormley, Chatsworth, CA (US);

Michael Henninger, Austin, TX (US);

Scott Michael Homan, Culver City, CA (US);

Teague Lasser, Los Angeles, CA (US);

Micah Ledbetter, Sunnyvale, CA (US);

Scott Jeremy Seidman, Glenview, IL (US);

Benjamin Siepser, Los Angeles, CA (US);

Assignee:

HI LLC, Los Angeles, CA (US);

Attorney:

ALG Intellectual Property, LLC

Primary Examiner:

Christopher P McAndrew

Int. Cl.
CPC ...
G01R 33/00 (2006.01); G01R 33/032 (2006.01); A61B 5/05 (2021.01); A61B 5/00 (2006.01); G01R 33/26 (2006.01); G01R 33/09 (2006.01); A61B 5/245 (2021.01); H01F 7/20 (2006.01); H01F 27/28 (2006.01); H01F 27/36 (2006.01); H05K 1/18 (2006.01);
U.S. Cl.
CPC ...
G01R 33/0082 (2013.01); A61B 5/0077 (2013.01); A61B 5/05 (2013.01); A61B 5/245 (2021.01); A61B 5/4064 (2013.01); A61B 5/6802 (2013.01); A61B 5/6803 (2013.01); G01R 33/007 (2013.01); G01R 33/0011 (2013.01); G01R 33/0017 (2013.01); G01R 33/0047 (2013.01); G01R 33/032 (2013.01); G01R 33/095 (2013.01); G01R 33/26 (2013.01); H01F 7/20 (2013.01); H01F 27/2804 (2013.01); H01F 27/36 (2013.01); H05K 1/18 (2013.01); A61B 2562/0223 (2013.01); A61B 2562/04 (2013.01); A61B 2562/18 (2013.01); A61B 2562/222 (2013.01); A61B 2562/227 (2013.01); H05K 2201/10151 (2013.01);
Abstract

An exemplary magnetic field measurement system includes a wearable sensor unit and a controller. The wearable sensor unit includes 1) a magnetometer comprising a photodetector and 2) a magnetic field generator configured to generate a compensation magnetic field configured to actively shield the magnetometer from ambient background magnetic fields. The controller is configured to interface with the magnetometer and the magnetic field generator and includes a differential signal measurement circuit configured to measure current output by the photodetector.

Find Patent Forward Citations

Loading…