Navigation system for vehicle
US5179519A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1991 |
| Grant date | Jan 12, 1993 |
| Priority date | — |
| Expiry date | Jan 24, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/39
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A navigation system for a vehicle which does not bewilder a driver of the vehicle with heading indication also when the driving speed of the vehicle is low. The navigation system comprises a GPS receiver, a display unit, a map memory in which a map is stored, a detecting section for detecting a driving position and a driving direction of the vehicle from information received from the GPS receiver, and a controller. The controller receives information of a driving speed of the vehicle from the vehicle and controls, when the driving speed is equal to or higher than a preset speed, the display unit to indicate on a display screen thereof the driving position and driving direction of the vehicle received from the detecting section together with the map received from the map memory, but controls, when the driving speed is lower than the preset speed, the display unit to indicate only the driving position of the vehicle received from the detecting section together with the map received from the map memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.