Map-matching navigation system
US5774824A · kind A · utility
264Cited by
25References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1995 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Aug 24, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A map matching navigation system for monitoring vehicle state characteristics including the location of a vehicle on a map route. The map matching navigation system may operate in a fixed mode wherein the map route is inputted by a user or a flexible mode wherein the map matching navigation system determines the map route from a plurality of measured points which correspond to the location of the vehicle. The map matching navigation system additionally updates the location of the vehicle at a plurality of positions on the map route wherein the vehicle location is known with an increased level of confidence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.