06496116 is referenced by 17 patents and cites 7 patents.

A portable location alarm device is provided which allows a user to preset an alarm event to occur when the device arrives at a pre-determined location. The alarm event alerts the user by audible, visual or vibrating means. The alarm device determines it's actual location using GPS data. In one embodiment the user bookmarks particular locations while physically present at a given location. Part of the bookmarking process involves the device simultaneously receiving GPS data that describes the physical location. The user can subsequently set an alarm event for any bookmarked location without the need for the device to carry large databases, for example of the type cross-referencing place names to mapping co-ordinates.

Title
Location alarm
Application Number
10/90174
Publication Number
6496116 (B2)
Application Date
March 4, 2002
Publication Date
December 17, 2002
Inventor
Armando S Valdes
Orpington
US
Leonard H Poll
Redhill
US
Jonathan Farringdon
Penshurst
US
Agent
Gregory L Thorne
US
Assignee
Koninklijke Philips Electronics
US
IPC
G08B 23/00
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