Navigation device

Details Navigation device Navigation device

1998-05-26

2000-12-05

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

701208, 340995, G01S 502

Patent

active

061573426

ABSTRACT:
To display a current position of a vehicle along a road in a stereoscopic map drawn based on three-dimensional map data, a navigation device forms a picture image superposing the current position of the vehicle on a perspective map viewing a three-dimensional ground surface from a direction forming a predetermined angle with respect thereto based on data read from a map data base and displays the image on a screen of a display and a position correcting unit 52 calculates an altitude at a position in the map in correspondence with the current position of the vehicle based on altitude data read from the map data base.

REFERENCES:
patent: 4812845 (1989-03-01), Yamada et al.
patent: 4939663 (1990-07-01), Baird et al.
patent: 5483456 (1996-01-01), Kuwahara et al.
patent: 5574649 (1996-11-01), Levy
patent: 5826212 (1998-10-01), Nagai
patent: 5913918 (1999-06-01), Nakano et al.

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