Electronic compass

Details Electronic compass Electronic compass

1991-02-28

1993-01-05

Will, Thomas B.

Geometrical instruments

Indicator of direction of force traversing natural media

Combined

33361, 368 10, 368 14, G01C 1728, G04B 4706

Patent

active

051759365

ABSTRACT:
An electronic compass can store azimuth data of points to be passed by a user in a plurality of registers, and the stored azimuth data are sequentially displayed on a display device every time an external operation switch is operated. The compass includes a magnetic sensor for detecting a geomagnetism, thereby obtaining north azimuth data on the earth. The north azimuth data obtained by the magentic sensor is displayed simultaneously with the stored azimuth data. Therefore, the user can know at each point a direction to go on the basis of the two displayed azimuth data, i.e., the stored azimuth data, and the north azimuth data on the earth.

REFERENCES:
patent: 4470119 (1984-09-01), Hasebe et al.
patent: 4482255 (1984-11-01), Gygax et al.
patent: 4668100 (1987-05-01), Murakami et al.
patent: 4694583 (1987-09-01), Blaney
patent: 4726687 (1988-02-01), Gander
patent: 4791729 (1988-12-01), Suda

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