Navigation system and method for updating map data based on map modification command
First Claim
Patent Images
1. A navigation system comprising:
- a map data server for storing map data of a specific region, and producing and transmitting map modification command information corresponding to modified map data for a portion of the specific region; and
a navigation terminal for storing the map data stored in the map data server, receiving the map modification command information, and modifying the stored map data according to the map modification command information.
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Abstract
A navigation system including a map data server and a navigation terminal. The map data server stores map data produced for the map information of a specific region. When an external manager modifies the map data, the server produces and transmits map modification command information corresponding to the modified map data. The navigation terminal stores map data corresponding to the map data stored in the map data server, receives and analyzes the map modification command information, and modifies the previously stored map data according to the analyzed result. Therefore, map data can be updated using the small amount of map modification command data.
15 Citations
13 Claims
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1. A navigation system comprising:
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a map data server for storing map data of a specific region, and producing and transmitting map modification command information corresponding to modified map data for a portion of the specific region; and
a navigation terminal for storing the map data stored in the map data server, receiving the map modification command information, and modifying the stored map data according to the map modification command information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for updating map data in a navigation system, comprising the steps of:
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determining if previously stored map data is updated;
if the map data has been updated, generating map modification command information corresponding to updated map data;
transmitting the map modification command information;
receiving the map modification command information; and
modifying the previously stored map data in the navigation terminal according to the received map modification command information. - View Dependent Claims (11, 12, 13)
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Specification