公开(公告)号：US20250099031A1

公开(公告)日：2025-03-27

申请号：US18413320

申请日：2024-01-16

Applicant: PIXART IMAGING INC.

Inventor： Chih-Hao WANG ,  Shih-Jen LU ,  Chien-Yi KAO ,  Yang-Ming CHOU ,  Hsin-Yi LIN

IPC: A61B5/00 ,  A61B5/1455

Abstract: There is provided a wearable device including at least one light source, a light sensor and a processor. The processor generates a peak interval plot according to one of at least two light detection signals detected by the light sensor when the at least one light source emits light, and generates an oxygen saturation plot according to two of the one of at least two light detection signals detected by the light sensor when the at least one emits light. The processor further determines an Apnea Hypopnea Index (AHI) score according to the peak interval plot, determines an Oxygen Desaturation Index (ODI) score according to the oxygen saturation plot and fits an obstructive sleep apnea level index corresponding to the AHI score and the ODI score.