A device, wearable by a user, includes: a plurality of sensor elements each for providing an indication of position of at least a part of the user's body; a receiver for receiving each indication of position provided by each of the plurality of sensor elements to provide a composite position signal....http://www.google.com/patents/US20070149360?utm_source=gb-gplus-sharePatent US20070149360 - Device for monitoring a user's posture
