Map display apparatus
US4737927A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1986 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Apr 29, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3667
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A map display apparatus displays a road map of a desired display district in accordance with stored map data. The apparatus includes a map data storing medium storing, in correspondence to a plurality of basic sections forming the whole area of the road map, a plurality of map information representing the road configurations in the basic sections and a plurality of name information representing the names of various parts in the basic sections, a display selecting device for selecting the desired display district from the whole area of the road map, a display control unit for generating a display signal in accordance with the map information group and the name information group of the basic sections contained in the selected display district, and a display responsive to the display signal to display the selected display district. Thus, when displaying the map of the selected district, it is only necessary to read and display the map information and name information of the basic sections belonging to the district.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.