Patent 7761230 was granted and assigned to Alpine Electronics (company) on July, 2010 by the United States Patent and Trademark Office.
A navigation apparatus including a memory for storing building data of buildings; a display; a decimating unit for decimating the building data based on the unit of the bar scale of a map appearing on the display; and a display controller for displaying the buildings on a map on the display based on the building data decimated by the decimating unit.