Method of updating a database of a navigation device and navigation device

US9285229B2 · kind B2 · utility

Assignee

• HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH · DE

Inventors

• Peter Kunath · Birkenfeld, DE
• Marcel Voigt · Munich, DE
• Stefan Baptist · Eichenau, DE
• Carsten-Christian Spindler · Remptendorf, DE
• Marcus Heitmann · Unterschleißheim, DE

Key dates

• Filing date: Jul 9, 2012
• Grant date: Mar 15, 2016
• Expiry date: May 18, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G01C21/387
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

To update a database of a navigation device which stores at least a base version of a digital map, versions of the digital map which are available locally in the database or remotely from the navigation device are identified. To execute the navigation task, a version of the digital map is selected for execution of the navigation task. Data from a sub-set of storage blocks in which the selected version is stored is required to execute the navigation task. Depending on whether all storage blocks of the sub-set are already stored locally in the database, data stored in storage blocks of the sub-set which are not yet stored locally in the database are downloaded via a wireless interface. The downloaded data are stored in the database without modifying the base version of the digital map.