Vehicle compass compensation

Details Vehicle compass compensation Vehicle compass compensation

2008-02-15

2009-08-04

Guadalupe-McCall, Yaritza (Department: 2841)

Geometrical instruments

Indicator of direction of force traversing natural media

Magnetic field responsive

C033S35500D, C033S357000

Reexamination Certificate

active

07568290

ABSTRACT:
A compass compensation system is provided for automatically and continuously calibrating an electronic compass for a vehicle, without requiring an initial manual calibration or preset of the vehicle magnetic signature. The system initially adjusts a two axis sensor of the compass in response to a sampling of at least one initial data point. The system further calibrates the compass by sampling data points that are substantially opposite to one another on a plot of a magnetic field and averaging an ordinate of the data points to determine a respective zero value for the Earth magnetic field. The system also identifies a change in magnetic signature and adjusts the sensor assembly.

REFERENCES:
patent: 2959856 (1960-11-01), Boose
patent: 3320790 (1967-05-01), Oscar
patent: 3769710 (1973-11-01), Reister
patent: 4006631 (1977-02-01), Garner
patent: 4031630 (1977-06-01), Fowler
patent: 4091543 (1978-05-01), Lapeyre
patent: 4112754 (1978-09-01), Suminsby
patent: 4112755 (1978-09-01), Sullivan
patent: 4418480 (1983-12-01), Garner
patent: 4546551 (1985-10-01), Franks
patent: 4660161 (1987-04-01), Okada
patent: 4698912 (1987-10-01), Fowler et al.
patent: 4720992 (1988-01-01), Hormel
patent: 4725957 (1988-02-01), Alberter et al.
patent: 4751783 (1988-06-01), Ina et al.
patent: 4763268 (1988-08-01), Itoh et al.
patent: 4771547 (1988-09-01), Akutsu et al.
patent: 4797841 (1989-01-01), Hatch
patent: 4807462 (1989-02-01), Al-Attar
patent: 4841449 (1989-06-01), Suyama
patent: 4852012 (1989-07-01), Suyama
patent: 4862398 (1989-08-01), Shimizu et al.
patent: 4862594 (1989-09-01), Schierbeek et al.
patent: 4866627 (1989-09-01), Suyama
patent: 4882689 (1989-11-01), Aoki
patent: 4953305 (1990-09-01), Van Lente et al.
patent: 4989333 (1991-02-01), Helldörfer et al.
patent: 5046031 (1991-09-01), Wanous
patent: 5117375 (1992-05-01), Worcester et al.
patent: 5131154 (1992-07-01), Schierbeek et al.
patent: 5151872 (1992-09-01), Suzuki et al.
patent: 5161311 (1992-11-01), Esmer et al.
patent: 5165269 (1992-11-01), Nguyen
patent: 5187872 (1993-02-01), Dufour
patent: 5255442 (1993-10-01), Schierbeek et al.
patent: 5287295 (1994-02-01), Ives et al.
patent: 5287297 (1994-02-01), Ihara et al.
patent: 5297063 (1994-03-01), Cage
patent: 5297065 (1994-03-01), Cage et al.
patent: 5345382 (1994-09-01), Kao
patent: 5390122 (1995-02-01), Michaels et al.
patent: 5511319 (1996-04-01), Geerlings et al.
patent: 5581899 (1996-12-01), Brehler et al.
patent: 5632092 (1997-05-01), Blank et al.
patent: 5644851 (1997-07-01), Blank et al.
patent: 5699044 (1997-12-01), Van Lente et al.
patent: 5737226 (1998-04-01), Olson et al.
patent: 5761094 (1998-06-01), Olson et al.
patent: 5802727 (1998-09-01), Blank et al.
patent: 5878370 (1999-03-01), Olson
patent: 6513252 (2003-02-01), Schierbeek et al.
patent: 6860023 (2005-03-01), Manfred et al.
patent: 6868356 (2005-03-01), Nai et al.
patent: 6871411 (2005-03-01), Kang et al.
patent: 6877237 (2005-04-01), Withanawasam
patent: 6922647 (2005-07-01), Cho et al.
patent: 6922902 (2005-08-01), Schierbeek et al.
patent: 6928366 (2005-08-01), Ockerse et al.
patent: 6937954 (2005-08-01), Jeong et al.
patent: 7020971 (2006-04-01), Currie et al.
patent: 7146740 (2006-12-01), Manfred
patent: 7322117 (2008-01-01), Olson et al.
patent: 7331115 (2008-02-01), Schierbeek et al.
patent: 7379814 (2008-05-01), Ockerse et al.
patent: 2007/0247141 (2007-10-01), Pastre et al.
patent: 2007/0288166 (2007-12-01), Ockerse et al.
patent: 2008/0201096 (2008-08-01), Wright et al.
patent: 2009/0009163 (2009-01-01), Yamada
patent: 0321123 (1989-06-01), None
patent: 2193321 (1988-02-01), None
patent: 59100812 (1984-06-01), None
patent: 63187113 (1988-08-01), None
patent: 03068811 (1991-03-01), None
patent: 9512108 (1995-05-01), None
patent: 9848292 (1998-10-01), None
Philips Semiconductor Sensors Data Handbook SC17, 1997, pp. 183-187.
European Search Report for European Application No. EP00650029 which is based on corresponding U.S. Appl. No. 09/540,702, filed Mar. 31, 2000, entitled Vehicle Compass Compensation.

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