Systems and methods of reducing a component of a signal caused by vibration
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United States of America Patent
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May 31, 2011
Grant Date -
Dec 9, 2010
app pub date -
Jul 29, 2010
filing date -
Jul 19, 2007
priority date (Note) -
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Abstract
A vibration detection circuit. The circuit includes an accelerometer, a combining filter, an amplifier, and an analog to digital converter. The accelerometer generates one or more signals indicative of movement along an axis. The combining filter filters a component of the one or more signals not associated with movement and combines the components of the one or more signals indicative of movement to create a combined signal. The amplifier amplifies the combined signal and creates an amplified signal. The analog to digital converter converts the amplified signal into a digital value.
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