Magnetic direction finder with correcting circuit

Details Magnetic direction finder with correcting circuit Magnetic direction finder with correcting circuit

1992-09-09

1994-02-15

Cosimano, Edward R.

Boots, shoes, and leggings

33356, 364449, 364559, G06F 1520

Patent

active

052872971

ABSTRACT:
The direction of a terrestrial magnetism is detected by a terrestrial magnetism sensor mounted on a vehicle, and an output circle is generated on an X-Y coordinate by turning the vehicle on the ground, when the vehicle passes through a foreign magnetic fields the direction of the foreign magnetic field is detected by the terrestrial magnetism sensor, and the course thereof is determined on the basis of former output circle before passing through the foreign magnetic field and the output of an angular velocity sensor of the vehicle after passing it, then a new center of the output circle is determined by evaluating an intersection of the line representing the foreign magnetic field and the line representing the course of the vehicle on the X-Y coordinate.

REFERENCES:
patent: 4743913 (1988-05-01), Takai
patent: 4831563 (1989-05-01), Ando et al.
patent: 4862398 (1989-08-01), Shimizu et al.
patent: 5046031 (1991-09-01), Wanous
patent: 5060162 (1991-10-01), Ueyama et al.
patent: 5131155 (1992-07-01), Takano et al.
patent: 5159556 (1992-10-01), Schorter
patent: 5172322 (1992-12-01), Takano et al.
patent: 5187872 (1993-02-01), Dufour

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