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:
Nov. 22, 2022

Filed:

Apr. 30, 2020
Applicant:

HI Llc, Los Angeles, CA (US);

Inventors:

Jamu Alford, Simi Valley, CA (US);

Michael Henninger, Austin, TX (US);

Stephen Garber, Santa Monica, CA (US);

Jeffery Kang Gormley, Chatsworth, CA (US);

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

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

Teague Lasser, Los Angeles, CA (US);

Micah Ledbetter, Sunnyvale, CA (US);

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

Hooman Mohseni, Wilmette, IL (US);

Ethan Pratt, Santa Clara, CA (US);

Scott Jeremy Seidman, Glenview, IL (US);

Benjamin Siepser, Los Angeles, CA (US);

Assignee:

HI LLC, Los Angeles, CA (US);

Attorney:
Primary Examiner:
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); H01F 7/20 (2006.01); H01F 27/28 (2006.01); H01F 27/36 (2006.01); H05K 1/18 (2006.01); A61B 5/245 (2021.01);
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

A magnetic field measurement system includes a wearable device having a plurality of wearable sensor units. Each wearable sensor unit includes a plurality of magnetometers and a magnetic field generator configured to generate a compensation magnetic field configured to actively shield the plurality magnetometers from ambient background magnetic fields. A strength of a fringe magnetic field generated by the magnetic field generator of each of the wearable sensor units is less than a predetermined value at the plurality of magnetometers of each wearable sensor unit included in the plurality of wearable sensor units.


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