Isc8 Inc.

Clint Kopper

Ying Wen Hsu

Gary Gottlieb

A signal processing method and device for measuring the input rate of an FM micro-gyro having a modulation frequency Fand having an oscillator sense element having a nominal frequency Fis disclosed. In a first aspect of the invention, the method comprises defining a first time interval Tand a second time interval Tand measuring the first time interval and the second time interval by counting the number of periods of a predetermined reference frequency. The nominal frequency of the oscillator sense element Fis measured along with the modulation frequency F. From these measurements, the proof mass period Nis calculated. The time difference &#x394;t is calculated from the above measurements. The method then comprises calculating a modulation M that produced the measured &#x394;t, preferably using an iterative method. From the above, the input rate &#x3a9; is calculated by dividing M by a sensitivity S of the FM micro-gyro. The above method and other methods for signal processing for measuring the input rate of an FM micro-gyro are disclosed herein.

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Oceanside, CA, United States of America

Clint Kopper