Driving device, physical quantity measurement device, and...

Details Driving device, physical quantity measurement device, and... Driving device, physical quantity measurement device, and...

2007-07-31

2010-12-14

Benson, Walter (Department: 2837)

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

C310S317000, C310S318000, C331S065000, C331S1160FE

Reexamination Certificate

active

07849744

ABSTRACT:
An oscillation driver circuit includes a gain control amplifier which causes a vibrator to produce driving vibrations by controlling an oscillation amplitude in an oscillation loop, and a comparator which generates a synchronous detection reference signal based on a signal in the oscillation loop. The oscillation driver circuit sets a gain in a first oscillation loop including the vibrator and the comparator to be larger than unity using an output from the comparator, and then causes the vibrator to produce the driving vibrations by controlling an oscillation amplitude in a second oscillation loop including the vibrator and the gain control amplifier in at least one of an oscillation startup state and a sleep mode.

REFERENCES:
patent: 4575689 (1986-03-01), Valentin
patent: 4578650 (1986-03-01), Watson
patent: 5473288 (1995-12-01), Kumada
patent: 6031316 (2000-02-01), Kataoka
patent: 2002/0017829 (2002-02-01), Raffalt et al.
patent: 2006/0192458 (2006-08-01), Lee et al.
patent: A-2002-188925 (2002-07-01), None
patent: A-2002-350139 (2002-12-01), None
patent: A-2003-240556 (2003-08-01), None
patent: A-2004-286503 (2004-10-01), None

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