Electronic compass system

Details Electronic compass system Electronic compass system

2007-09-04

2007-09-04

Beaulieu, Y. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

With indicated course correction

C701S200000, C702S092000

Reexamination Certificate

active

11557358

ABSTRACT:
An electronic compass system includes a magnetic sensor circuit having at least two sensing elements for sensing perpendicular components of the Earth's magnetic field vector. A processing circuit is coupled to the sensor circuit to filter, process, and compute a heading. The processing circuit may determine whether too much noise is present in the output signals received from said magnetic sensor circuit as a function of the relative strength of the Earth's magnetic field vector. The magnetic sensor circuit may include three magnetic field sensing elements contained in a common integrated package having a plurality of leads extending therefrom for mounting to a circuit board. The sensing elements need not be perpendicular to each other or parallel or perpendicular with the circuit board. The electronic compass system is particularly well suited for implementation in a vehicle rearview mirror assembly.

REFERENCES:
patent: 1472342 (1923-10-01), Pickard
patent: 2357319 (1944-09-01), Esval et al.
patent: 2383461 (1945-08-01), Esval et al.
patent: 2393670 (1946-01-01), White
patent: 2407536 (1946-09-01), Chapman
patent: 2464057 (1949-03-01), Phair
patent: 2466687 (1949-04-01), Craddock et al.
patent: 3936949 (1976-02-01), Devaud
patent: 4424631 (1984-01-01), Franks
patent: 4425717 (1984-01-01), Marcus
patent: 4505054 (1985-03-01), Clark et al.
patent: 4546551 (1985-10-01), Franks
patent: 4581827 (1986-04-01), Higashi
patent: 4677381 (1987-06-01), Geerlings
patent: 4807462 (1989-02-01), Al-Attar
patent: 4851775 (1989-07-01), Kim et al.
patent: 4862594 (1989-09-01), Schierbeek et al.
patent: 4937945 (1990-07-01), Schofield et al.
patent: 4953305 (1990-09-01), Van Lente et al.
patent: 5090231 (1992-02-01), Gallagher
patent: 5095631 (1992-03-01), Gavril et al.
patent: 5131154 (1992-07-01), Schierbeek et al.
patent: 5239264 (1993-08-01), Hawks
patent: 5255442 (1993-10-01), Schierbeek et al.
patent: 5339529 (1994-08-01), Lindberg
patent: 5455716 (1995-10-01), Suman et al.
patent: 5511319 (1996-04-01), Geerlings et al.
patent: 5525901 (1996-06-01), Clymer et al.
patent: 5632092 (1997-05-01), Blank et al.
patent: 5644851 (1997-07-01), Blank et al.
patent: 5664335 (1997-09-01), Suman et al.
patent: 5699044 (1997-12-01), Van Lente et al.
patent: 5708410 (1998-01-01), Blank 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: 5808197 (1998-09-01), Dao
patent: 5878370 (1999-03-01), Olson
patent: 5924212 (1999-07-01), Domanski
patent: 6023229 (2000-02-01), Bugno et al.
patent: 6044315 (2000-03-01), Honeck et al.
patent: 6047237 (2000-04-01), Michmerhuizen
patent: 6084406 (2000-07-01), James et al.
patent: 6087953 (2000-07-01), DeLine et al.
patent: 6140933 (2000-10-01), Bugno et al.
patent: 6170956 (2001-01-01), Rumsey et al.
patent: 6173501 (2001-01-01), Blank et al.
patent: 6192315 (2001-02-01), Geschke et al.
patent: 6222460 (2001-04-01), DeLine et al.
patent: 6243660 (2001-06-01), Hsu et al.
patent: 6262831 (2001-07-01), Bauer et al.
patent: 6301794 (2001-10-01), Parks et al.
patent: 6326900 (2001-12-01), DeLine et al.
patent: 6356376 (2002-03-01), Tonar et al.
patent: 6407468 (2002-06-01), LeVesque et al.
patent: 6407712 (2002-06-01), Turnbull et al.
patent: 6418376 (2002-07-01), Olson
patent: 6420800 (2002-07-01), LeVesque et al.
patent: 6456194 (2002-09-01), Carlson et al.
patent: 6471362 (2002-10-01), Carter et al.
patent: 6539306 (2003-03-01), Turnbull
patent: 6543146 (2003-04-01), Smith et al.
patent: 6587573 (2003-07-01), Stam et al.
patent: 6642851 (2003-11-01), DeLine et al.
patent: 6651003 (2003-11-01), Woloszyk et al.
patent: WO 03/105099 (2003-12-01), None
Michael J. Caruso, “Applications of Magnetic Sensors for Low Cost Compass Systems,” Honeywell, SSEC, p. 8, no date.

Affiliated with

Also associated with

Rating

Electronic compass system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electronic compass system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electronic compass system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3784544