07397424 is referenced by 206 patents and cites 33 patents.

System and method for enabling a wireless computing device to continuously determine its position includes a wireless computing device and a wireless positioning system substantially collocated therewith. The wireless positioning system has a first positioning mode in which it communicates with a wireless positioning network to enable the geographic location of the computing device to be determined upon reception of signals from the positioning network and a second positioning mode in which it enables the geographic location of the wireless computing device to be determined upon reception of signals from one or more of the wireless beacons and analysis of the signals in light of positional information about wireless beacons contained in a database. The wireless positioning system switches between the positioning modes depending on reception of signals from the wireless positioning network.

Title
System and method for enabling continuous geographic location estimation for wireless computing devices
Application Number
11/170337
Publication Number
7397424 (B2)
Application Date
June 29, 2005
Publication Date
July 8, 2008
Inventor
Cyril Houri
New York
NY, US
Agent
Brian Roffe
Assignee
Mexens Intellectual Property Holding
NY, US
IPC
H04Q 7/20
G01C 21/00
G01S 5/14
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