Direction finding system

Details Direction finding system Direction finding system

1981-04-24

1983-04-12

Stearns, Richard R.

Geometrical instruments

Indicator of direction of force traversing natural media

Magnetic field responsive

33363R, G01C 1730

Patent

active

043793665

ABSTRACT:
A direction finding system of the type finding a present direction on 4N direction divisions defined by 2N boundary levels for automotive vehicles, said system comprising a magnetic sensor circuit for generating a pair of electric signals indicating two perpendicular components of the earth's magnetic field, a logic circuit for signal-converting the electric signals, discriminating and latching to generate direction indicating 2N binary signals with reference to predetermined 2N boundary indicating levels, a sorting circuit for sorting the binary signals to generate one of 4N direction signals and a display device for displaying a corresponding direction.

REFERENCES:
patent: 3744312 (1973-07-01), Anderson
patent: 3905121 (1975-09-01), Takeda et al.
patent: 3959889 (1976-06-01), Thomas
patent: 4139949 (1979-02-01), Goldman

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