06092076 is referenced by 209 patents and cites 39 patents.

A program and method for a map display tool for use with a navigation system and used with a map database. The map display tool is adapted to render a map on a display or in a graphics buffer for a predetermined geographic region. The map display tool includes a map processing layer for performing the essential data manipulation, a graphics interface layer that maintains a series of look up tables with graphics commands, and a primitive layer customized to interact with an underlying graphics platform and the graphics interface layer. The map display tool renders a map by retrieving data items from the map database and processing each data item. Shape information is rendered on a screen or in a graphics buffer, name information is buffered and sorted to optimize filtering, prioritization, spatial conflicts resolution and other tasks prior to rendering.

Title
Method and system for map display in a navigation application
Application Number
9/47141
Publication Number
6092076
Application Date
March 24, 1998
Publication Date
July 18, 2000
Inventor
Ashutosh Srivastava
Elk Grove Village
IL, US
Srinivasa Rao
Mount Prospect
IL, US
William McDonough
Glen Ellyn
IL, US
Agent
Lawrence M Kaplan
Frank J Kozak
Assignee
Navigation Technologies Corporation
IL, US
IPC
G06F 17/30
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