1251335-A2 is referenced by 6 patents and cites 5 patents.

A system and method for providing geographic data to end users' computing platforms. A server maintains downloadable geographic data that are organized into pre-computed parcels that correspond to pre-determined sub-areas into which the entire geographic region serviced by the server is divided. The server responds to requests from the end users' computing platforms for navigation services and data by sending selected pre-computed parcels of geographic data to the end users' computing platforms. The end users' computing platforms store the pre-computed parcels received from the server in a cache memory. The end users' computing platforms use the data in the pre-computed parcels to provide navigation-related features locally.

Title
Navigation system with distributed computing architecture
Application Number
EP20020252660 20020415
Publication Number
1251335 (A2)
Application Date
April 15, 2002
Publication Date
October 23, 2002
Inventor
Robare Philip
US
Crane Aaron
US
Natesan Senthil
US
Assignee
Navigation Tech
US
IPC
G01C 21/34
G08G 01/123
G06F 17/30
G06F 15/00
G01C 21/28
G01C 21/34
G01C 21/00
G08G 01/137
G06F 17/30
G06F 15/00
G01C 21/32
G01C 21/34
G01C 21/00
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