Vehicle compass system

Details Vehicle compass system Vehicle compass system

1996-01-18

1998-06-02

Trammell, James P.

Boots, shoes, and leggings

33355R, 33356, 73 175, 73 176, 324202, 324244, 324245, G01C 1738

Patent

active

057610940

ABSTRACT:
A vehicle compass system having a magnetic field sensor coupled to a processing circuit which samples the sensor data and implements a calibration routine that generates compensation signals to compensate the sensor for the effects of vehicular magnetism so that accurate heading information can be displayed on a display coupled to the processing circuit. If the signal levels detected are outside of a variable threshold, then the calibration routine is run. Also provided is a circuit for receiving vehicle position information in response to which the processing circuit adjusts the signals supplied to the display in order to account for magnetic variations between the true north and magnetic north.

REFERENCES:
patent: 4341023 (1982-07-01), Marcus et al.
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: 4677381 (1987-06-01), Geerlings
patent: 4743913 (1988-05-01), Takai
patent: 4797841 (1989-01-01), Hatch
patent: 4831563 (1989-05-01), Ando et al.
patent: 4866627 (1989-09-01), Suyama
patent: 4890233 (1989-12-01), Ando et al.
patent: 4953305 (1990-09-01), Van Lente et al.
patent: 5046031 (1991-09-01), Wanous
patent: 5165269 (1992-11-01), Nguyen
patent: 5339246 (1994-08-01), Kao
patent: 5345382 (1994-09-01), Kao
patent: 5390122 (1995-02-01), Michaels et al.
patent: 5440303 (1995-08-01), Kinoshita
patent: 5442340 (1995-08-01), Dykema
patent: 5511319 (1996-04-01), Geerlings et al.
patent: 5581899 (1996-12-01), Brechler et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1468396