Map display method in navigation system and navigation apparatus
US6825855B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 20, 2001 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | May 10, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3635
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A map display method in a navigation system has a bird's-eye view display function of displaying a map image in conjunction with a background image. The map display method in a navigation system has a step of displaying a horizon that indicates a boundary between the map image and the background image, and is rounded at least in part. Besides the bird's-eye view display effect, the method can enhance a sense of realism of the bird's-eye view display. Thus, it can solve a problem of a conventional method in that the bird's-eye view display effect cannot be achieved satisfactorily because the conventional method displays a pseudo horizon in a straight line to indicate the boundary between the map image region and the background image region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.