Geometrical instruments – Indicator of direction of force traversing natural media – Gyromagnetic compass
Patent
1989-10-03
1990-12-18
Cuchlinski, Jr., William A.
Geometrical instruments
Indicator of direction of force traversing natural media
Gyromagnetic compass
33326, 33356, 33361, 33362, 364453, 364449, G01C 1936, G01C 1728
Patent
active
049776797
ABSTRACT:
In an azimuth signal generator for an automobile navigation system a change in the rotational rate of an inertia rotary member, which has its rotary shaft held vertically and is driven at substantially a constant speed, is detected as a direction changing rate of the car and the direction changing rate is integrated by an integrator to obtain an azimuth signal. On the other hand, the azimuth of geomagnetism is detected by a geomagnetic azimuth sensor and a correcting signal is produced based on an error between the azimuth signal and the geomagnetic azimuth signal. The correcting signal is negatively feedback to the input side of the integrator, causing the azimuth signal to follow the geomagnetic azimuth signal.
REFERENCES:
patent: 3837086 (1974-09-01), James
patent: 4106094 (1978-08-01), Land
patent: 4197655 (1980-04-01), Moore
patent: 4254465 (1981-03-01), Land
patent: 4379365 (1983-04-01), Riethmiiller et al.
patent: 4386535 (1983-06-01), Albert
patent: 4583178 (1986-04-01), Ameen et al.
patent: 4621529 (1986-11-01), Pittman
patent: 4711125 (1987-12-01), Morrison
patent: 4715227 (1987-12-01), Pittman
patent: 4807138 (1989-02-01), Krogmann
patent: 4823626 (1989-04-01), Hartman et al.
patent: 4831544 (1989-05-01), Hojo et al.
patent: 4862398 (1989-08-01), Shimizu et al.
patent: 4866627 (1989-09-01), Suyama
patent: 4870602 (1989-09-01), Baumker
patent: 4890233 (1989-12-01), Ando et al.
Ito Jun-ichi
Saito Takahiro
Cuchlinski Jr. William A.
Dowling William C.
Japan Aviation Electronics Industry Limited
LandOfFree
Azimuth signal generator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Azimuth signal generator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Azimuth signal generator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1419020