Phase locked loop-based tuning adjustable filter

Details Phase locked loop-based tuning adjustable filter Phase locked loop-based tuning adjustable filter

2011-07-19

2011-07-19

Chang, Joseph (Department: 2817)

Oscillators

Plural oscillators

Oscillator used to vary amplitude or frequency of another...

C331S002000, C331S017000, C331S046000, C375S344000, C375S345000, C455S307000

Reexamination Certificate

active

07982547

ABSTRACT:
Phase locked loop based frequency tuning of an adjustable filter is disclosed. A resonant circuit includes the adjustable filter, and an oscillator signal provides an input to the resonant circuit.

REFERENCES:
patent: 3969678 (1976-07-01), Asahara et al.
patent: 5339455 (1994-08-01), Vogt et al.
patent: 6813484 (2004-11-01), Tolson
patent: 7039385 (2006-05-01), Hoffmann et al.
patent: 7308241 (2007-12-01), Shimada et al.
patent: 2003/0017817 (2003-01-01), Cowley
patent: 2005/0232080 (2005-10-01), Tolciu
patent: 2009/0325521 (2009-12-01), Dubash et al.

Affiliated with

Also associated with

Rating

Phase locked loop-based tuning adjustable filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase locked loop-based tuning adjustable filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase locked loop-based tuning adjustable filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2735746