Direction detecting apparatus and method thereof

Details Direction detecting apparatus and method thereof Direction detecting apparatus and method thereof

1994-01-13

1995-08-08

Peng, John K.

Communications: electrical

External condition vehicle-mounted indicator or alarm

340988, 364449, 364457, 33356, 33357, G08G 100

Patent

active

054403030

ABSTRACT:
In a direction detecting apparatus for a vehicle, when signals input from an earth magnetic sensor into calculating means are judged to be outside a predetermined judging area, an alarm for prompting magnetization correction is given, thereby the direction detecting apparatus can surely display the alarm at any case without the necessity to rotate the vehicle.

REFERENCES:
patent: 4852012 (1989-07-01), Suyama
patent: 4882689 (1989-11-01), Aoki
patent: 5283743 (1994-02-01), Odagawa

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