06674403 is referenced by 336 patents.

A system and method for performing real-time position detection and motion tracking of mobile communications devices moving about in a defined space comprised of a plurality of locales is provided. A plurality of access points are disposed about the space to provide an interface between mobile devices and a network having functionality and data available or accessible therefrom. Knowledge of adjacency of locales may be used to better determine the location of the mobile device as it transitions between locales and feedback may be provided to monitor the status and configuration of the access points.

Title
Position detection and location tracking in a wireless network
Application Number
10/235338
Publication Number
6674403 (B2)
Application Date
September 5, 2002
Publication Date
January 6, 2004
Inventor
Yonald Chery
Malden
MA, US
Jeffrey J Peden II
Lexington
MA, US
Matthew K Gray
Somerville
MA, US
Agent
McDermott Will & Emery
US
Assignee
Newbury Networks
MA, US
IPC
G01S 3/02
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