System and method for the magnetic detection of the presence...

Details System and method for the magnetic detection of the presence... System and method for the magnetic detection of the presence...

2003-08-18

2009-02-10

Lee, Benjamin C (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Of relative distance from an obstacle

C340S436000, C701S301000

Reexamination Certificate

active

07489234

ABSTRACT:
A system and method for the magnetic detection of the presence of objects in a blind angle of an automobile vehicle is disclosed. The system includes a first detector of distortion of the earth's magnetic field caused by the entry of a ferromagnetic object into a blind angle, a second, a third and possibly a fourth detector of magnetic distortion deriving from the vehicle's trajectory, inclination and/or vibration and magnetic fields generated inside the actual vehicle, respectively, all associated with an electronic circuit. The method includes employing the proposed system to, through the generation of a table relating trajectory, inclination and/or vibrations or magnetic fields generated inside the vehicle with a corresponding distortion of the magnetic filed due to the specific circumstances, neutralize the effects of the possible magnetic distortion on the detection of the object.

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International Search Report for PCT International Application No. PCT/ES03/00428 mailed Dec. 17, 2003.

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