Automotive navigation system
US4677561A · kind A · utility
21Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1985 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | Apr 24, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automotive navigation system wherein a memory included therein has not stored therein picture information of an actual map, but instead has stored therein geographical names and the geographical positions thereof. When the geographical names of a departure point, a destination point and one or more passing points are entered through an input unit, a control circuit reads out the respective positions of the points from the memory. The control circuit controls a display unit to display on a display screen marks respectively indicating two or more of the points and the current position of a vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.