Map display apparatus for motor vehicle
AssigneeXanavi Informatics Corporation
InventorsTakuo Koyanagi, Koichi Yaita, Takashi Mori
Life of this patent
Estimating the term…
Abstract
A map display apparatus for a motor vehicle comprising: road map storage device which stores road map data relating to a road map; a display device capable of displaying the road map; bird's-eye view data converting circuit which converts the road map data into bird's-eye view data so that a bird's-eye view taken by obliquely looking down the road map from above is displayed on the display device; and display control circuit which displays a plurality of grid lines such that the grid lines are superposed on the bird's-eye view.
Claims13
A map display apparatus for a motor vehicle, comprising:
- road map storage device which stores road map data relating to a road map;
- and
- a display device capable of displaying the road map;
- said map display apparatus for a motor vehicle further comprising:
- bird's-eye view data converting circuit which converts said road map data into bird's-eye view data so that a bird's-eye view taken by obliquely looking down the road map from above is displayed on said display device;
- and
- display control circuit which displays a plurality of grid lines which are superposed on said bird's-eye view so that the map on a screen of the display device looks more like the bird's-eye view.
A map display apparatus for a motor vehicle, comprising:
- road map storage device which stores road map data relating to a road map, and information relating to latitudes and longitudes;
- and
- a display device capable of displaying the road map;
- said map display apparatus for a motor vehicle further comprising:
- bird's-eye view data converting circuit which retrieves said road map data in a predetermined range from said road map storage device, and converts the road map data into bird's-eye view data, so that a bird's-eye view taken by obliquely looking down the road map from above is displayed on said display device;
- grid-line data preparing circuit which prepares data for displaying grid lines corresponding to latitudes and longitudes so that the map on a screen of the display device looks more like the bird's-eye view, on the basis of the information relating to latitudes and longitudes stored in said road map storage device;
- and
- display control circuit which combines said bird's-eye view with the data prepared by said grid-line preparing circuit, so as to display said bird's-eye view and said grid lines which are superposed on each other.
A map display apparatus for a motor vehicle, comprising:
- road map storage means for storing road map data relating to a road map;
- a display device displaying an image representative of the sky in a sky display region as an upper portion of a display screen of the display device, and displaying the road map in a map display region other than said sky display region;
- bird's-eye view data converting means for converting said road map data into bird's-eye view data so that a bird's-eye view taken by obliquely looking down the road map from above is displayed on said display device;
- and
- display control means for displaying a plurality of grid lines which are superposed on said bird's-eye view so that the map on a screen of the display device looks more like the bird's-eye view.
A computer program product comprising a computer readable medium having stored thereon a map display system program which includes code segments that:
- convert stored road map data into bird's-eye view data taken by obliquely looking down a road map from above;
- output said bird's-eye view to a display device;
- superpose a plurality of grid lines on said bird's-eye view output to the display device.
A computer program product comprising a computer readable medium having stored thereon a map display system program which includes code segments that:
- convert stored road map data relating to a road map into bird's-eye view data taken by obliquely looking down the road map from above for use on a display screen of a display device;
- display an image representative of a sky area in a sky display region as an upper portion of the display screen, and display the bird's-eye view data in a map display region of the display screen other than said sky display region;
- and
- superpose a plurality of grid lines on said bird's-eye view on the display screen.
Dependencies are inferred from the claim text.