In case it wasn’t obvious that Apple is working on some sort of wearable device, now we have three newly revealed Apple patents that detail features for a wearable computer like the iWatch. The three patents, first noticed by Apple Insider, were all filed on December 14, 2012, and published on Thursday. The first patent details how a device can use multiple sensors to determine what you are doing and where you are. For example, it could use the pulse rate sensor and the motion sensor to determine that you are running, and the location sensor to determing whether you are running outside or on a treadmill. The second patent shows how a wearable device can be used to more