公开(公告)号：US11937923B2

公开(公告)日：2024-03-26

申请号：US17245139

申请日：2021-04-30

Applicant: WITHINGS

Inventor： Paul Edouard ,  Romain Kirszenblat

IPC: A61B5/1455 ,  A61B5/00

CPC classification number: A61B5/14551 ,  A61B5/0004 ,  A61B5/681 ,  A61B5/7225 ,  A61B5/7264 ,  A61B5/721

Abstract: A non-invasive method to determine a current functional blood oxygen saturation level: acquiring, at a sampling frequency, a photoplethysmography light response for each wavelength of a plurality of at least three wavelengths, resulting respectively in a first, second and third raw data series, applying a low -pass filter to each of the first, second and third raw data series, resulting respectively in a first, second and third DC data series representing an unmodulated amplitude response determining respectively in a first, second and third AC data series representing an unmodulated amplitude response, applying a. computation engine to the first, second and third AC and DC data series, and determining therefrom a user current blood oxygen saturation level.

公开(公告)号：USD1041466S1

公开(公告)日：2024-09-10

申请号：US35519351

申请日：2023-11-29

Applicant: WITHINGS

Designer： Aniss Bendjoudi ,  Romain Kirszenblat ,  Thomas Droze

Abstract: 1. Watch case
1.1 : Top
1.2 : Perspective
1.3 : Right
The broken line showing of the watch case is for the purpose of illustrating portions of the article and forms no part of the claimed design.