The golf club reminder system for a golf bag utilizes a capacitance-based, proximity sensing system to monitor golf clubs in the golf bag. The components of the golf club reminder system are built into a golf bag, and the golf club reminder system operates in two modes. In a first normal mode the presence...http://www.google.co.uk/patents/US7106195?utm_source=gb-gplus-sharePatent US7106195 - Golf club reminder system for golf bags
