06697018 is referenced by 179 patents.

A geographic-based communications service system has a mobile unit for transmitting/receiving information, and access points connected to a network. The access points are arranged in a known geographic locations and transmit and receive information from the mobile unit. When one of the access points detects the presence of the mobile unit, it sends a signal to the network indicating the location of the mobile unit and the information requested by the mobile unit. Based on the signal received from the access point, the network communicates with information providers connected to the network and provides data to the mobile unit through the access point corresponding to the location of the mobile unit.

Title
Method and apparatus for geographic-based communications service
Application Number
9/755649
Publication Number
6697018 (B2)
Application Date
January 5, 2001
Publication Date
February 24, 2004
Inventor
Brett B Stewart
Austin
TX, US
Agent
Meyertons Hood Kivlin Kowert & Goetzel P C
US
Agent
Jeffrey C Hood
US
Assignee
Wayport
TX, US
IPC
G01S 1/08
View Original Source