Patent ID: 9730027
Date: 2017-08-08
CPC Classifications: A61B,A63B,G01C,G01S,G06Q,G16H,G16Z,H04B,H04M,H04W

Claim:
1. A method of operating a wearable device, the wearable device comprising one or more biometric sensors and a global positioning system (GPS) receiver, the method comprising: determining that a user of the wearable device has started an exercise; detecting a time at which the user has started the exercise in response to determining that the user of the wearable device has started the exercise; activating the GPS receiver in response to determining that the user has started the exercise; detecting a time at which the GPS receiver achieves an initial GPS fix of a location of the wearable device; determining a first time interval between the time of the start of the exercise and the detected time of the initial GPS fix; logging, based on output of the one or more biometric sensors, a first set of user data relating to at least one of distance, direction, and speed of the user during the first time interval; and back-filling an exercise route of the user during the first time interval based on the first set of user data.