Boosted-bias tunable filter with dynamic calibration
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United States of America Patent
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Oct 26, 2010
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app pub date -
Feb 4, 2009
filing date -
Jul 21, 2005
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Abstract
In a signal communication device, a frequency-selective filter has at least one component that is biased by a control signal to establish a center frequency of the frequency-selective filter. A closed-loop bias generator is provided to generate the control signal and to adjust the control signal based, at least in part, on a comparison of the control signal and a reference signal.
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