Measuring and testing – Speed – velocity – or acceleration – Angular rate using gyroscopic or coriolis effect
Reexamination Certificate
2007-08-21
2007-08-21
Chapman, John E. (Department: 2856)
Measuring and testing
Speed, velocity, or acceleration
Angular rate using gyroscopic or coriolis effect
Reexamination Certificate
active
11043711
ABSTRACT:
A vibration gyro sensor is provided which is capable of generating time information and detecting an angular velocity. A driving signal for driving a tuning fork piezoelectric vibrating reed is generated based on an excitation signal generated by an oscillation circuit. An angular velocity signal is obtained based on a detection signal generated by a detection electrode of the tuning fork piezoelectric vibration reed. The excitation signal generated by the oscillation circuit is input to a divider such that a timer clock signal is generated.
REFERENCES:
patent: 6467347 (2002-10-01), Fujimoto
patent: 6553835 (2003-04-01), Hobbs et al.
patent: 08-285933 (1996-11-01), None
patent: 2001-292367 (2001-10-01), None
patent: 2003-004457 (2003-01-01), None
Chapman John E.
Harness & Dickey & Pierce P.L.C.
Seiko Epson Corporation
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