Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Reexamination Certificate
2008-02-13
2011-10-18
Williams, Hezron E (Department: 2856)
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
C073S504180
Reexamination Certificate
active
08037756
ABSTRACT:
A microelectromechanical gyroscope that includes a first mass oscillatable according to a first axis; an inertial sensor, including a second mass, drawn along by the first mass and constrained so as to oscillate according to a second axis, in response to a rotation of the gyroscope; a driving device coupled to the first mass so as to form a feedback control loop and configured to maintain the first mass in oscillation at a resonance frequency; and an open-loop reading device coupled to the inertial sensor for detecting displacements of the second mass according to the second axis. The driving device includes a read signal generator for supplying to the inertial sensor at least one read signal having the form of a square-wave signal of amplitude that sinusoidally varies with the resonance frequency.
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Caminada Carlo
Lasalandra Ernesto
Prandi Luciano
Jorgenson Lisa K.
Seed IP Law Group PLLC
Shah Samir M
STMicroelectronics S.r.l.
Tarleton E. Russell
LandOfFree
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