Patent ID: 7590486
Filing Date: 2009-09-15
Classification: G01C,G09B

Abstract:
1. An automobile navigation apparatus comprising; a map data base storing map data in a rewritable memory medium, a map data management unit that classifies said map data into attributions of information properties characterized by said map data and composes tables including said attributions which are specified in records thereof and enables access to said map data in a unit of said records, an updating data acquisition unit that transmits a request to update the map data and that acquires updated data of a map that includes updating procedure information transmitted in response to the request, an information interpreting unit that interprets the updating procedure information, and that compiles the updating actions in the updating procedure information into commands that direct the automobile navigation apparatus to update the each specified map element in the updating procedure information; and a map data updating unit that searches over said map data base based on a result of the interpretation, wherein said acquired updating procedure information includes: