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:
Jun. 04, 2024
Filed:
Sep. 30, 2020
Systems and methods for breathing detection and rate estimation using wireless communication signals
Applicant:
Nxp Usa, Inc., Austin, TX (US);
Inventors:
Assignee:
NXP USA, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/08 (2006.01); A61B 5/00 (2006.01); G16H 50/30 (2018.01); H04W 24/08 (2009.01);
U.S. Cl.
CPC ...
A61B 5/0816 (2013.01); A61B 5/0004 (2013.01); A61B 5/7214 (2013.01); A61B 5/7257 (2013.01); G16H 50/30 (2018.01); H04W 24/08 (2013.01);
Abstract
Various embodiments relate to a method for estimating a breathing rate, including: receiving a plurality of channel state information (CSI) from a wireless device; selecting an initial reference CSI from the plurality of CSI; computing a perturbation index using the initial reference CSI and a portion of the plurality of CSI; determining an optimal reference CSI based upon the perturbation index; re-computing the perturbation index using the optimal reference CSI on a portion of the plurality of CSI subsequent to the optimal reference CSI; and determining a breathing rate from the perturbation index using a frequency analysis of the perturbation index.