US 7,321,773 B2
Area watcher for wireless network
Gordon John Hines, Kirkland, Wash. (US); Mario G. Tapia, Seattle, Wash. (US); and Will Cousins, Seattle, Wash. (US)
Assigned to TeleCommunication Systems, Inc., Annapolis, Md. (US)
Filed on Dec. 13, 2002, as Appl. No. 10/318,171.
Prior Publication US 2004/0192337 A1, Sep. 30, 2004
Int. Cl. H04Q 7/20 (2006.01)
U.S. Cl. 455—456.1  [455/456.2; 455/456.3; 455/456.5] 16 Claims
OG exemplary drawing
 
1. A subscriber feature for a wireless system, comprising:
a database associating a particular wireless device with at least one geographic area;
a speed determiner to determine a speed of said particular wireless device relative to said at least one geographic area;
an area watcher to selectively output at least one trigger message from a plurality of trigger messages for said at least one geographic area, said at least one trigger message being selected from said plurality of trigger messages based on said determined speed of said particular wireless device upon said particular wireless device's entry into or exit from said at least one geographic area.