Patent ID: 9581612
Date: 2017-02-28
CPC Classifications: A61B,G01P,G16H

Claim:
1. A method for determining if a wearable device is worn by a wearer, the method comprising: sampling, by a wearable device comprising a motion sensor, for a predetermined time step a signal of the motion sensor indicating a motion of the wearable device; determining, by a processor of the wearable device, an orientation of the wearable device from the signal; detecting, by the processor of the wearable device, a movement of the wearable device based on a difference between the first orientation and at least one previously determined orientation; storing, by the processor of the wearable device, into an array of flags a flag that indicates detection of movement of the wearable device, wherein each flag in the array of flags indicates whether there has been detection of movement of the wearable device for each of the at least one previously predetermined time steps; and determining, by the processor of the wearable device, that the wearer is wearing the wearable device at the predetermined time step based on identifying a predetermined number of flags in the array of flags.