Map display system
US4812980A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1986 |
| Grant date | Mar 14, 1989 |
| Priority date | — |
| Expiry date | May 15, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B29/106
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In a map display system, map-forming data necessary for display of a display area and character data representing display areas are stored in a map data memory. A display area commander reads map-forming data indicating a specified display area out of the map data memory, and produces a display area instruction. A display character commander selects character data for a given point of the specified display area designated by the display area designation commander, and produces a display character instruction. On the basis of the display area instruction from the display area commander and the display character instruction from the display character commander, a map of the specified display area and characters in the specified display area are displayed on a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.