Map update device and method for navigation system
AssigneeHyundai Mnsoft, Inc.
InventorYong Chan CHO
Life of this patent
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Abstract
A map update device of a navigation system may include: a first map DB configured to store the entire map data; a second map DB configured to store differentially updated map data corresponding to differential data of map data to be updated in the first map DB; an update module unit configured to download the differential data from a server, generate the differentially updated map data, and synchronize the first map DB based on the differentially update map data stored in the second map DB; and a navigation module unit configured to perform route guidance by referring to the second map DB for a section corresponding to the differentially updated map data, when map data are being synchronized with the first map DB.
Claims11
A map update device of a navigation system, comprising:
- a first map DB configured to store entire map data;
- a second map DB configured to store differentially updated map data corresponding to differential data of map data to be updated in the first map DB;
- an update module unit configured to download the differential data from a server, generate the differentially updated map data, and synchronize the first map DB based on the differentially update map data stored in the second map DB;
- and
- a navigation module unit configured to perform route guidance by referring to the second map DB for a section corresponding to the differentially updated map data, when map data are being synchronized with the first map DB.
A map update method of a navigation system, comprising:
- downloading, by an update module unit, differential data of map data to be updated among entire map data stored in a first map DB from a server, generating differentially updated map data, and writing the generated data to a second map DB;
- synchronizing, by the update module unit, the first map DB based on the differentially updated map data written in the second map DB;
- and
- performing, by a navigation module unit, route guidance by referring to the second map DB for a section corresponding to the differentially updated map data, when map data required for route guidance are being synchronized with the first map DB.
Dependencies are inferred from the claim text.