Navigation system mounted on vehicle

Details Navigation system mounted on vehicle Navigation system mounted on vehicle

1993-02-18

1995-05-16

Crosland, Donnie L.

Communications: electrical

Vehicle position indication

340990, 340995, 364443, 364449, 364454, G08G 1123

Patent

active

054164770

ABSTRACT:
The navigation system includes sensors for detecting a condition of a vehicle's movement, an imaginary location calculating device for calculating an existence location of the vehicle, a straight condition processing device for judging whether or not the vehicle is traveling straight, thereby forming a straight travel locus in a condition of straight travel, map data, a road searching-straightening processing device for extracting information concerning a road so as to form a locus as a straight road, a direction rectifying data calculating device for producing a direction offset by calculating direction errors, a location rectifying data calculating device for calculating a location offset, and a location direction rectifying device for rectifying a location and direction of the vehicle by respectively providing a direction offset and location offset with respect to an estimated direction and an estimated location.

REFERENCES:
patent: 4737916 (1988-04-01), Ogawa et al.
patent: 4763270 (1988-08-01), Itoh et al.
patent: 4939662 (1990-07-01), Nimura et al.
patent: 4963864 (1990-10-01), Iihoshi et al.
patent: 4963865 (1990-10-01), Ichikawa et al.
patent: 5031104 (1991-07-01), Ikeda et al.
patent: 5041983 (1991-08-01), Nakahara et al.
patent: 5046011 (1991-09-01), Kakihara et al.
patent: 5109344 (1992-04-01), Kakihara et al.

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