Map display unit
US6199012A · kind A · utility
104Cited by
16References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Sep 24, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/0969
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A group of maps corresponding to the present position detected by a position detection unit is retrieved from a storage unit. Also, a map on the same scale as a map being displayed is extracted from the retrieved group of maps. If there is an overlapped portion between the extracted map and the map being displayed, they are displayed with the overlapped portion held. With this, both the map being displayed and the extracted map can be displayed as if they were continuous to each other, and the present-position mark can be displayed without being jumped considerably.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.