摘要:
To improve the efficiency of a menu selecting operation, not only a menu of a predetermined hierarchy, but also at least one menu of a lower hierarchy corresponding to the predetermined hierarchy are displayed. If the lower hierarchy (first genre) menu is selected, the nationwide and individual state or region menus of the first genre are instantly displayed. If, on the other hand, the menu of predetermined hierarchy is selected from the main menu, individual genre menus of the same hierarchy as that of the lower hierarchy menu are displayed to enable selection of a different genre menu. The nationwide and state or regions menus of the selected genre are then displayed (at S8). As a result, the operation efficiency for selecting the first genre can be improved. Provision is also made for destination selection by input of a telephone number. A match of the input telephone number with prestored data calls up display of a map of the vicinity of the address corresponding to the input telephone number, which map display can be utilized to set a destination. On the other hand failure to match the input telephone number with prestored data results in a display of landmarks located within the larger area assigned to the local exchange portion of the input telephone number. One of the display listed landmarks may then be selected to call up a map of the vicinity of the selected landmark.
摘要:
A navigation system includes a first information storage device containing stored map data and a display unit for displaying a map by reading the map data. Provision is made for setting a point on the map displayed by the display unit and for inputting a telephone number. A second information storage device is provided for registering the input telephone number in correlation with the positional coordinates of the set point.