Bi-quad calibration

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United States of America Patent

PATENT NO 9407240
APP PUB NO 20140306777A1
SERIAL NO

14017850

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Embodiments include methods of tuning state variable filters. Examples include state variable filters whose center frequencies can be tuned using variable gain blocks coupled to outputs of filter integrators. First- and second-order state variable filters may operate on signals in parallel and their outputs combined to produce a filtered output. Filters may be tuned to pass or reject signals depending on the application; sample applications include, but are not limited to: agile filtering; spectrum analysis; interference detection and rejection; equalization; direct intermediate-frequency transmission; and single-sideband modulation and demodulation.

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Patent Owner(s)

  • SPERO DEVICES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gupta, Dev V Concord, US 48 2189

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