| 摘要 |
Systems, methods, and apparatus, including computer program products, for maintaining a personalized message provided by a personal security service subscriber in an escrow storage during a security period associated with the subscriber; processing itinerary-related information of the personalized message against a dictionary of known physical locations to identify a starting point, a destination point, and a candidate route between the starting point and the destination point; generating a visual representation of the candidate route; and delivering the personalized message, the visual representation of the candidate route, or both, to one or more recipients upon determining an occurrence of a security event during the security period associated with the subscriber. |
