A subscription system and corresponding method of operation for monitoring user's well being is disclosed. The method includes the steps of providing, at a user monitor module, a first indicator for the user well being; providing, at a receiving module operably coupled to the user monitor module, a first...http://www.google.com.tw/patents/US20050093705?utm_source=gb-gplus-share專利 US20050093705 - Subscription system for monitoring user well being