Navigation apparatus
US6321160A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2000 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Mar 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/36
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A car navigation apparatus includes a route setting unit for setting a route; an own car position detection unit for measuring an own car position and detecting the own car position; and an advance direction detection unit for detecting an advance direction of the own car. The car navigation apparatus further includes a turning intersection detection unit for detecting an intersection where the own car should turn next time, on the route located within a predetermined distance in the advance direction from the own car position; and a turning intersection display unit responsive to detection of a turning intersection to display the shape of the turning intersection and a direction to which the own car should turn, acquired from map information stored in a map information storage unit, on the display screen using figures, and to display the distance to the turning intersection and the name of the turning intersection on the display screen using characters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.