A system and method for establishing and maintaining date information associated with an electronic device. The system is typically configured to prompt a user to enter or otherwise establish a valid date at some point after power is applied to the system. After establishing a valid date, the real time...http://www.google.fr/patents/US7047565?utm_source=gb-gplus-shareBrevet US7047565 - Method and system for capturing in-service date information
Method and system for capturing in-service date information