Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Patent
1996-07-11
1999-03-16
Louis-Jacques, Jacques H.
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
701212, 701211, 340995, 340990, 340988, 73178R, G06G 778
Patent
active
058842179
ABSTRACT:
A map display apparatus according to the present invention has a display device capable of displaying a road map in different map forms in a base screen region and a window screen region. A control circuit determines whether the window screen is provided or not on the basis of input information entered through an input device, and determines which one of a planimetric map and a bird's-eye view is displayed in the base screen and the window screen. Either of the planimetric map and the bird's-eye view are displayed using road map data as a common map data base stored in a map storage memory, which eventually reduces the cost of the apparatus. When the window screen is displayed, a range of the road map including at least a range of the road map displayed in the base screen is displayed in the window screen, and an indication representing the range of the road map displayed in the base screen is displayed in the window screen.
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Louis-Jacques Jacques H.
Xanavi Informatics Corporation
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