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:
Jan. 03, 2023

Filed:

Jun. 19, 2020
Applicant:

The Swatch Group Research and Development Ltd, Marin, CH;

Inventors:

Cedric Nicolas, Neuchatel, CH;

Abolfazl Soltani, Lausanne, CH;

Hooman Dejnabadi, Orbe, CH;

Martin Savary, Yverdon-les-Bains, CH;

Kamiar Aminian, La Tour-de-Peilz, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/11 (2006.01); A61B 5/00 (2006.01); G06K 9/62 (2022.01); G06V 10/75 (2022.01);
U.S. Cl.
CPC ...
A61B 5/112 (2013.01); A61B 5/681 (2013.01); G06K 9/6232 (2013.01); G06K 9/6278 (2013.01); G06K 9/6296 (2013.01); G06V 10/758 (2022.01); A61B 2562/0219 (2013.01);
Abstract

A method of detecting gaits of an individual with a sensor worn by the individual. The sensor includes an accelerometer and a processing unit. The method includes obtaining an signal representing one or more sensor acceleration values; sampling the signal to obtain a sampled signal; segmenting the sampled signal into windows to obtain a segmented acceleration signal; extracting a feature set from the segmented acceleration signal; determining a probability value, for a respective window, n, where n is a positive integer greater than zero, the probability value giving an estimated probability value of gait occurrence for the individual during the respective window; modifying the estimated probability value by using a histogram of previously detected gait durations to obtain a modified probability value; and determining, based on the modified probability value, and by using a determination threshold whether or not the respective window represents gait occurrence.


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