Patent ID: 9436703
Filing Date: 2016-09-06
CPC Classification: G01C,G06F

Claim Text:
1. A navigation terminal comprising: a reception unit adapted to receive a file in which map data of a specific zone is stored, from a map provision server; and an execution unit adapted to execute a navigation function on the specific zone with the file, wherein the file is produced by an individual unit with respect to each of geographic areas divided by a mesh unit having a variable size, and wherein the size of the mesh unit is decided according to amount of information included in the geographic area such that the size of the file is leveled; wherein the specific zone is selected by a user; wherein the reception unit is further adapted to receive files of areas corresponding to the specific zone selected by the user, from the divided geographic areas in a lump; and wherein the files of the areas corresponding to the specific zone selected by the user are stored in an internal memory, and files of additional areas corresponding to zones other than the specific zone selected by the user are temporarily stored in a cache; wherein the execution unit executes the navigation function for areas corresponding to the specific zone selected by the user upon the files stored in the internal memory, when the reception unit does not communicate with the map provision server; wherein the execution unit executes the navigation function for the addition areas not selected by the user with the files temporarily stored in the cache, when the reception unit communicates with the map provision server; and the execution unit is configured to perform routes search, display the routes on a display device, and provide the route guidance.