Micro video cameras are sufficiently portable, miniature and weather-resistant for ands-free use by an athlete or vacationer who wishes to wear it (or attach it to a base support structure about him or herself) and self-record his or her own amusement, whether indoors or outdoors, underwater or otherwise....http://www.google.de/patents/US6292213?utm_source=gb-gplus-sharePatent US6292213 - Micro video camera usage and usage monitoring
