Method and apparatus for providing navigation guidance
US5612882A · kind A · utility
Inventors
Key dates
| Filing date | Feb 1, 1995 |
| Grant date | Mar 18, 1997 |
| Priority date | — |
| Expiry date | Feb 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/096872
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and apparatus (10) for providing navigation guidance via a land vehicle by providing a navigation route planner (24) having a road network database (12) for planning a navigation route along the road network, determining a current estimated position of the land vehicle, communicating maneuver instructions to a driver of the land vehicle at a predetermined maneuver distance base value before the land vehicle reaches a required maneuver along the planned navigation route, and detecting and quantifying current environmental travel conditions for assisting a navigation device in guiding the land vehicle along the planned navigation route.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.