Patent ID: 8428865

Claim:
A navigation system, comprising: an icon display unit, comprising a processor, that displays a plurality of icons corresponding to a plurality of road types on a screen of a display, wherein the plurality of icons are displayed by road type; a search key setting unit that specifies a road type corresponding to an icon selected by a user through an operating unit from the plurality of icons displayed on the screen of the display, displays a list of roadway names having the specified road type on the screen of the display, and sets a roadway name selected by the user from the list as a search key for a roadway search; and, an information storage unit that stores each of the plurality of icons and information associated with each road type, wherein each of the plurality of icons is stored by road type; wherein the search key setting unit further includes: a road type specifying unit configured to initially specify road type information corresponding to the selected icon by referring to data stored on the information storage unit; and a list display unit configured to retrieve one or more roadway names from data stored on the information storage unit based on the road type information specified by the road type specifying unit, and thereafter display a list of the retrieved one or more roadway names on the screen of the display; wherein the one or more roadway names retrieved from the data correspond to the road type of the selected icon, and wherein the search key setting unit is configured to set the roadway name selected by the user through the operating unit from the list of retrieved roadway names displayed on the screen of the display as the search key.