Boosted-bias tunable filter with dynamic calibration

Details Boosted-bias tunable filter with dynamic calibration Boosted-bias tunable filter with dynamic calibration

2006-07-21

2008-09-23

Mis, David (Department: 2817)

Tuners

Tuner unit directly responsive to voltage and/or current...

Reactance tuning

C334S016000, C334S078000, C455S188100, C455S195100

Reexamination Certificate

active

07427907

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.

REFERENCES:
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patent: 5678211 (1997-10-01), Badger
patent: 5822687 (1998-10-01), Bickley et al.
patent: 2002/0115420 (2002-08-01), Cheng
patent: 0 475 705 (1992-03-01), None
patent: 1 278 304 (2003-01-01), None
patent: 2 270 223 (1994-03-01), None
patent: WO 00/70757 (2000-11-01), None
International Search Report and Written Opinion of the International Searching Authority in International Application PCT/US2006/028446, ISA European Patent Office, Nov. 28, 2006, 11 pgs.

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