Boots – shoes – and leggings
Patent
1991-12-27
1994-03-22
Harvey, Jack B.
Boots, shoes, and leggings
36457102, 36457101, 364559, 73 1E, 33356, G01C 2500, G01D 1800
Patent
active
052970655
ABSTRACT:
A magnetic transient detection technique which alerts a microcomputer of an auto-calibrating compass when electrical transients which produce magnetic transients have occurred. The technique employs an electronic compass control circuit having a sampling rate high enough to isolate electrical transients from transients produced by normal motion of the vehicle. Accelerations in data values defined as the difference between two changes in the coordinates for the center of the earth's magnetic field circle, are calculated and compared to predetermined threshold accelerations. Previous acceleration values and their associated vehicle magnetic field vectors can be stored in the microcomputer. After a magnetic transient is detected, its associated vehicle magnetic field vector is subtracted from the resultant magnetic field to yield vehicle heading. Once detected, magnetic transients are also used to initiate auto-calibration.
REFERENCES:
patent: 3899834 (1975-08-01), Harrison, Jr.
patent: 3991361 (1976-11-01), Mattern et al.
patent: 4414753 (1983-11-01), Moulin et al.
patent: 4416067 (1983-11-01), Scherer et al.
patent: 4424631 (1984-01-01), Franks
patent: 4425717 (1984-01-01), Marcus
patent: 4497034 (1985-01-01), Kuno et al.
patent: 4505054 (1985-03-01), Clark et al.
patent: 4546550 (1985-10-01), Marchent et al.
patent: 4546551 (1985-10-01), Franks
patent: 4622646 (1986-11-01), Waller et al.
patent: 4677381 (1987-06-01), Geerlings
patent: 4698912 (1987-10-01), Fowler et al.
patent: 4750349 (1988-06-01), Luitje
patent: 4797841 (1989-01-01), Hatch
patent: 4870602 (1989-09-01), Baumker
patent: 5131154 (1992-07-01), Schierbeek et al.
patent: 5131155 (1992-07-01), Takano et al.
Al-Attar Rafi A.
Cage Russell E.
Wilke John A.
Calcaterra Mark P.
Choi Jae H.
Chrysler Corporation
Harvey Jack B.
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