POWER EFFICIENT SYSTEM AND METHOD FOR MEASURING PHYSICAL ACTIVITY IN RESOURCE CONSTRAINED DEVICES
First Claim
Patent Images
1. A method for efficiently measuring physical activity with a wearable device, the method comprising:
- waking a wearable device from a low power state, the wearable device comprising a motion sensor;
obtaining, by the wearable device, one or more data points of a motion signal from the motion sensor at a first point in time with a first frequency and;
determining by the wearable device if the one or more data points are above a first threshold; and
obtaining, by the wearable device, for a predetermined amount of time and at a second frequency one or more additional data points of the motion signal responsive to the one or more data points being above the first threshold.
1 Assignment
0 Petitions
Accused Products
Abstract
The systems and methods described herein relate to the power efficient measurement of physical activity with a wearable sensor. More particularly, the systems and methods described herein enable the continuous activity tracking without compromising battery life. In some implementations, the wearable sensor detects movement and enters predefined power states responsive to the type of movement detected.
-
Citations
21 Claims
-
1. A method for efficiently measuring physical activity with a wearable device, the method comprising:
-
waking a wearable device from a low power state, the wearable device comprising a motion sensor; obtaining, by the wearable device, one or more data points of a motion signal from the motion sensor at a first point in time with a first frequency and; determining by the wearable device if the one or more data points are above a first threshold; and obtaining, by the wearable device, for a predetermined amount of time and at a second frequency one or more additional data points of the motion signal responsive to the one or more data points being above the first threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A wearable device comprising:
-
a processor, coupled to a motion sensor, configured to; wake from a low power state; obtain one or more data points of a motion signal of the motion sensor at a first point in time at a first frequency; determine if the one or more data points are above a first threshold; and obtain for a predetermined amount of time and at a second frequency one or more additional data points of the motion signal responsive to the one or more data points being above the first threshold. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification