7,228,121 Mobile phone Amber Alert notification system and method
  Issued: June 5, 2007
  Filed: June 25, 2003
  U.S. Class: 455/404.1
Abstract:  A text messaging based alert notification and feedback method based on the Amber Alert system used in child abduction situations is disclosed herein. A mobile subscriber receives a public service text message that was broadcast to a large number of mobile subscribers. Law enforcement working in coordination with one or more cellular carriers compose and send out the public service text message containing facts about an exigent circumstance such as a child abduction. If a subscriber possesses information and wishes to reply to the public service text message, his mobile phone automatically generates a reply message to the public service text message. The reply message contains, at a minimum, a header portion that includes a time/date stamp, an identification stamp (e.g., mobile phone number), and if possible a location stamp. The reply message also allows for the inclusion of a data portion. The data portion includes the option of attaching additional text and an audio or video attachment to the reply message. Once the reply message is fully composed it is automatically returned to the sender of the public service text message.