Navigation apparatus and navigation method

Details Navigation apparatus and navigation method Navigation apparatus and navigation method

1993-12-14

1995-06-06

Teska, Kevin J.

Boots, shoes, and leggings

364443, 340990, 340995, 73178R, G06F 1550

Patent

active

054228158

ABSTRACT:
A navigation apparatus is provided with a measurement device for measuring a present position of a movable body, and memory device for storing map data and a map matching device. The map matching device performs map matching on the basis of the present position data and the map data to obtain a plurality of present position candidacies and select a most reliable present position candidacy as a map matched present position among the present position candidacies, and updates present position display data indicating the map matched present position. The navigation apparatus is also provided with a display unit for displaying the map matched present position on a map and for displaying a travelling locus of the movable body on the basis of a plurality of present position display data updated in the past. The navigation apparatus is further provided with a candidacy memory device for storing the present position candidacy data by each group corresponding to one travelling locus, and a travelling locus replacing device for replacing the displayed travelling locus by use of one group of the present position candidacy data.

REFERENCES:
patent: 5046011 (1991-09-01), Kakihara et al.
patent: 5189430 (1993-02-01), Yano et al.
patent: 5270937 (1993-12-01), Link et al.
patent: 5293318 (1994-03-01), Fukushima
patent: 5311173 (1994-05-01), Komura et al.

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