Method and apparatus for scheduling adaptation for a notch filte

Details Method and apparatus for scheduling adaptation for a notch filte Method and apparatus for scheduling adaptation for a notch filte

1995-09-29

1998-05-26

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

455306, 455334, H04B 110

Patent

active

057582750

ABSTRACT:
EMI spur interference is reduced in a system where the desired signal has periodically repeating components without destructively interfering with the repeating components. The frequency of the spur interference is determined (203) and fed to a notch filter (201) so as to center the notch at the frequency of the spur interference. Determination of the frequency is scheduled (601) to avoid cancellation of desired periodically repeating components of the signal.

REFERENCES:
patent: 4524424 (1985-06-01), White
patent: 5226057 (1993-07-01), Boren
patent: 5235612 (1993-08-01), Stilwell et al.
patent: 5345407 (1994-09-01), Hosteler
patent: 5519890 (1996-05-01), Pinckley

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