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:
Feb. 13, 2024

Filed:

Apr. 22, 2022
Applicant:

X Development Llc, Mountain View, CA (US);

Inventors:

David Andre, San Francisco, CA (US);

Erich Karl Nachbar, Foster City, CA (US);

Assignee:

X DEVELOPMENT LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/029 (2018.01); H04B 17/318 (2015.01); H04W 52/36 (2009.01); G01S 5/02 (2010.01);
U.S. Cl.
CPC ...
H04W 4/029 (2018.02); G01S 5/0284 (2013.01); H04B 17/318 (2015.01); H04W 52/367 (2013.01);
Abstract

The technology enables locating asset tracking tags based on a ramped sequence of signals from one or more beacon tracking tags. The sequence includes at least one minimum power signal and at least one maximum power signal. Each signal in the sequence has a tag identifier and an initial signal strength value. Each beacon signal in the ramped sequence is associated with the time at which that beacon signal was received by a reader. Each beacon signal is also associated with a received signal strength at reception. A location of the beacon tracking tag is estimated according to the signals in the sequence based on the difference between the initial and received signal strengths. A position of the reader device is identified based on the beacon tag's location. An asset tracking tag location is identified based on the reader's location and packets received by the reader from the asset tag.


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