Gyro sensor module and angular velocity detection method

Details Gyro sensor module and angular velocity detection method Gyro sensor module and angular velocity detection method

2008-02-04

2010-10-19

Kwok, Helen C. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Angular rate using gyroscopic or coriolis effect

C073S510000, C073S001370, C702S104000

Reexamination Certificate

active

07814793

ABSTRACT:
A mobile navigation system gyro module comprises: first and second gyro sensors outputting angular velocities ω1, ω2around first and second axes intersecting at an acute angle θ12; a sign determination circuit determining a sign of ω1; a correction circuit correcting the first and second gyro sensor outputs; and a computation circuit computing ω′=√(ω1′2+SA2) and SA=(ω2′−ω1′ cos θ12)/sin θ12using angular velocities ω1′, ω2′from the correction circuit, and outputting angular velocity ω by multiplying ω′ by the sign of ω1, wherein the correction circuit includes: first and second offset adjustment circuits outputting ω1″ and ω2″ by respectively subtracting from ω1and ω2, corrections B1and B2corresponding to the first and second gyro sensor outputs when the mobile unit stops; and the angular velocity ω is around an axis coplanar with and between the first and second axes.

REFERENCES:
patent: 6925401 (2005-08-01), Kameya
patent: 7644604 (2010-01-01), Hotelling et al.
patent: 7677076 (2010-03-01), Takeno
patent: 2008/0314145 (2008-12-01), Sato
patent: 2001-153658 (2001-06-01), None
patent: 2002-213959 (2002-07-01), None
patent: 2004-286529 (2004-10-01), None

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