Map display apparatus
US5283562A · kind A · utility
24Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1993 |
| Grant date | Feb 1, 1994 |
| Priority date | — |
| Expiry date | Apr 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B29/106
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A map display apparatus for displaying a wide area map and an enlarged map is disclosed. When a display mode is shifted from the mode of displaying the enlarged map to the mode of displaying the wide area map, a cursor frame is displayed on a position on a parent screen corresponding to the divided area which has been displayed in an enlarged manner just before the shift of the display mode, so that the position on the parent screen of the area which has been displayed in the enlarged manner so far can be easily discriminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.