Vehicle compass circuit

Details Vehicle compass circuit Vehicle compass circuit

1995-06-06

1997-09-09

Bennett, G. Bradley

Geometrical instruments

Indicator of direction of force traversing natural media

Magnetic field responsive

33355R, 340438, G01C 1738

Patent

active

056643357

ABSTRACT:
A compass circuit has a magnetic field sensor adapted to be positioned in a vehicle near a source of varying magnetic fields. A detector is coupled to the compass circuit for providing a signal applied to the compass circuit which responds for displaying the compass heading prior to the magnetic field disturbance to provide accurate heading information. In a preferred embodiment, the detector senses when a door is opened and the compass heading prior to the opening of the door is displayed.

REFERENCES:
patent: 4429469 (1984-02-01), Tsushima et al.
patent: 4953305 (1990-09-01), Van Lente et al.
patent: 4965550 (1990-10-01), Wroblewski
patent: 5151862 (1992-09-01), Nakayama et al.
patent: 5153558 (1992-10-01), Robinson et al.
patent: 5390122 (1995-02-01), Michaels et al.
patent: 5511319 (1996-04-01), Geerlings et al.

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