Patent ID: 7113107

Claim:
A system wherein geographical location information is utilized to manipulate output of advisory information, comprising: a transmitting unit for receiving geographical location information from a source of such information, and for transmitting advisory information, the transmitting unit including: a receiver for receiving the geographical information; a transmitter for transmitting advisory data to at least a geographical target footprint of interest, the target footprint being, a geographical area that is smaller than a broadcasting range of the transmitter; and a processor for controlling accessing of the geographical information and transmission of the advisory data; and a plurality of receiving units, each of the receiving units including: a receiver for receiving geographical location information for determining the geographical location of the receiving unit; a second receiver for receiving the advisory data from the transmitting unit; and an output device for selectively outputting advisory information based on the advisory data if the receiving unit is in the target footprint, no advisory information being output by the output device if the receiving unit is not in the target footprint.