Navigation system for guiding a mobile body back and forth along

Details Navigation system for guiding a mobile body back and forth along Navigation system for guiding a mobile body back and forth along

1998-01-12

2000-12-26

Issing, Gregory C.

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

34235713, G01C 2100

Patent

active

061673463

ABSTRACT:
In a navigation system, a controller includes a time selecting circuit for selecting times output from a timepiece in response to a signal representing a time interval from an operation unit, a satellite navigation position detecting circuit for receiving a radio wave at the times selected by the time selecting circuit from a Global Positioning System (GPS) receiver, and for determining the position of a mobile body on the basis of the radio wave, and an autonomous navigation position detecting circuit for receiving the output of both a distance sensor and an azimuth sensor which are synchronous to the times selected, for determining a distance and an azimuth based on the outputs of the distance and azimuth sensors, for determining a track of movement of the mobile body based on the distance and azimuth, and for adding the track to the start point of the mobile body to thereby produce the current position of the mobile body.

REFERENCES:
patent: 4242731 (1980-12-01), Mizote et al.
patent: 4563685 (1986-01-01), Matsumoto et al.
patent: 5257195 (1993-10-01), Hirata
patent: 5262774 (1993-11-01), Kuwahara et al.
patent: 5334986 (1994-08-01), Fernhout
patent: 5543802 (1996-08-01), Villeviellie et al.
patent: 5559520 (1996-09-01), Barzegar et al.
patent: 5722083 (1998-02-01), Konig

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