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. 03, 2025
Filed:
Jul. 10, 2020
Applicant:
Waymap Limited, London, GB;
Inventors:
Paul Daniel Baxter, Cambridge, GB;
Douglas James O'Rourke, Cambridge, GB;
Assignee:
Waymap Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/11 (2006.01); A61B 5/00 (2006.01); G01C 21/16 (2006.01);
U.S. Cl.
CPC ...
A61B 5/112 (2013.01); A61B 5/1118 (2013.01); A61B 5/1126 (2013.01); A61B 5/6801 (2013.01); A61B 5/725 (2013.01); G01C 21/16 (2013.01); A61B 2562/0219 (2013.01);
Abstract
A method and apparatus for estimating a step length of a user are disclosed. The method involves obtaining inertial data generated by an inertial sensor, extracting orthogonal motion components a plurality of directions, and estimating, based on the orthogonal motion components for each direction, a respective parameter that is indicative of energy expenditure by the user in the corresponding direction. The step length is then estimated, based on each estimated parameter indicating energy expenditure by the user, a corresponding step length.