Navigator for automotive vehicles
US4723218A · kind A · utility
45Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1985 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Sep 30, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a navigator for vehicles, a distance sensor detects a distance travelled by a vehicle and a heading sensor detects a direction of travel of the vehicle. In response to the detection signals from the sensors a microcomputer computes the present position of the vehicle and generates a position signal. In accordance with the position signal from the microcomputer and the selection of display selection switches a display tube gives a graphic display of a road map or a character display of a road map data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.