Navigation system
US7031834B2 · kind B2 · utility
14Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2003 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Apr 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/367
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vehicle navigation system has a plurality of maps, measurement modes, and operation modes. When the measurement mode is a standard in an accuracy priority mode, low detail rate map is used to display a current position. When the measurement mode is a precise measurement in the accuracy priority mode, a city map is used to display the current position. When the low detail rate map is used in a map priority mode, the measurement mode is set to the standard. When the city map is used in the map priority mode, the measurement mode is set to the precise measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.