公开(公告)号：US12141011B1

公开(公告)日：2024-11-12

申请号：US17847962

申请日：2022-06-23

Applicant: Amazon Technologies, Inc.

Inventor： Vashishtha Rajendra Patil ,  John Hubberts ,  Dinesh Rajasenan Nair

IPC: G06F1/00 ,  A61B5/00 ,  G06F1/3231 ,  G06N5/022

Abstract: Described are systems, methods, and apparatus that utilize multiple sensors to conserve battery life of a device, limit potential disruption to a user, and reliably detect whether the device is worn by the user. In one example, a first sensor, such as an infrared sensor, may be activated to determine a proximity of the device to an object. If the device is within a proximity of the object, a second sensor, such as a photoplethysmography (PPG) sensor, may be activated to verify that the device is being worn by the user and then to continue collecting data that may be used to determine biometrics for the user.