Method to determine positions and states of an activity monitoring device
US10441212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2014 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jun 30, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/0219
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method to determine a position and a state of a personal activity monitor worn by a user, such personal activity monitor comprising a motion sensor formed as an at least 3-axis accelerometer and a processor unit, the method comprising the steps of determining a number of changes of predominant axis per time period, and comparing it with exceeds a first predetermined threshold in order to infer a wrist worn condition, the method comprising the steps of determining a current level of activity and a temperature criterion to infer that the personal activity monitor is actually worn by the user and that the user has entered a sleep phase, or to infer that the user has emerged from sleep.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.