Electronic compass and method of controlling an electronic...

Details Electronic compass and method of controlling an electronic... Electronic compass and method of controlling an electronic...

2007-07-24

2007-07-24

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Direction

36, C033S316000, C033S319000, C033S35500D, C033S356000, C033S357000, C033S352000, C701S001000, C701S200000, C701S224000, C701S205000, C701S213000, C701S214000, C073S001750, C073S001760, C324S260000

Reexamination Certificate

active

11101284

ABSTRACT:
A method for controlling an electronic compass includes receiving raw magnetic field data into a calibration module and determining a calibration output based upon the raw magnetic field data. The raw magnetic field data is also received into a compass heading module for determining compass heading outputs based upon the raw magnetic field data. The calibration module filters the raw magnetic field data and validates the calibration outputs independently from output data filtering and results validation in the compass heading module.

REFERENCES:
patent: 4611293 (1986-09-01), Hatch et al.
patent: 5046031 (1991-09-01), Wanous
patent: 5737226 (1998-04-01), Olson et al.
patent: 6014610 (2000-01-01), Judge et al.

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