Navigation system using angular rate sensor

Details Navigation system using angular rate sensor Navigation system using angular rate sensor

1988-02-09

1989-11-07

Chin, Gary

Boots, shoes, and leggings

340988, 340995, 73178R, G06F 1550

Patent

active

048796581

ABSTRACT:
In a navigation system by which vehicle travel locations are detected by an angular rate sensor and a distance sensor and the detected vehicle travel locations are corrected so as to be displayed along a map road, the display errors are improved by matching a vehicle turn point behind a route judge area to a map branch point; a route judge area is adjusted according to route conditions to an adjacent branch point or detected travel angles or a distance between two adjacent branch points. Further, non-corrected vehicle location data are displayed only within the route judge area to remove unnatural vehicle location display.

REFERENCES:
patent: 4763270 (1988-08-01), Itoh et al.
patent: 4774671 (1988-09-01), Itoh et al.
patent: 4782447 (1988-11-01), Ueno et al.
patent: 4792907 (1988-12-01), Ikeda et al.
patent: 4796189 (1989-01-01), Nakayama et al.

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