INTERFACE LAYER FOR NAVIGATION SYSTEM

PROBLEM TO BE SOLVED: To obtain an interface layer by which a geographical database can be updated by a method wherein the interface layer in arranged between a navigation function and the geographical database and a function which searches a geographical data file from the database so as to be conv...

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Bibliographische Detailangaben
Hauptverfasser: ROBERT P FARNEKESS, BOUZIDE PAUL M, LAMPERT DAVID S, ISRANI VIJAY S, JASPER JOHN C, NATESAN SENTHIL K, KILLEY GRANT S, FEIGEN JERRY S, ASHBY RICHARD A
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To obtain an interface layer by which a geographical database can be updated by a method wherein the interface layer in arranged between a navigation function and the geographical database and a function which searches a geographical data file from the database so as to be converted and which provides an application program is provided. SOLUTION: An interface layer 41 is arranged between a navigation application software program 200 and a geographical data file 40, and it separates the navigation application software program 200 from the function of the geographical data file 40. The geographical data file 40 is stored on a storage medium 22 by a geographical dara set compiler. The compiler generates the output of a storage format shape. Since the layer 41 is arranged logically between the navigation application software program 200 and an operating system 202, it can respond to an access request from the navigation application software program 200. A software library for the layer 41 composed of the subsystem of the navigation application software program 200 searches and deforms the geographical data file 40 on the storage medium 22 regarding a requested entity so as to be returned to the navigation application software program 200.