Car navigation system
US7398155B2 · kind B2 · utility
3Cited by
0References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2005 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Feb 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/367
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
When an elevated road and a usual fly-under road are located in a stacked state, two roads are shown in overlapped lines on a display unit of a car navigation system in a subject vehicle. When the subject vehicle travels the fly-under road, the elevated road is shown in a translucent state. Thus, a user of the subject vehicle can recognize a state of the fly-under road the subject vehicle is traveling. In contrast, when the subject vehicle travels the elevated road, the elevated road is shown in a non-translucent state. The elevated road thereby becomes easy to see, so its advancing direction can be easily seen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.