06879838 is referenced by 182 patents and cites 36 patents.

A system, apparatus, and method for providing a distributed location based service system to a mobile user. Information related to a particular geographic location may be electronically transferred to a mobile electronic device, without a request from the user, and interpreted locally on the device in the form of a virtual map of location based resources. The mobile device is capable of determining its location using a GPS (Global Positioning System) or a process of measurement and prediction based on calculation. The mobile device can then use the location information and compare it to available location based resources within the device.

Title
Distributed location based service system
Application Number
9/839558
Publication Number
6879838 (B2)
Application Date
April 20, 2001
Publication Date
April 12, 2005
Inventor
Jonathan Charles Griffiths
Fremont
CA, US
Paul John Rankin
Horley
GB
Agent
Michael E Schmitt
Assignee
Koninklijke Philips Electronics
NL
IPC
H04Q 007/22
H04Q 007/20
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