Narrow-band-pass switching follower filter having n switched pat

Details Narrow-band-pass switching follower filter having n switched pat Narrow-band-pass switching follower filter having n switched pat

1980-01-30

1982-03-09

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

328151, 328167, 333174, H03H 1900, H03K 5159, H03K 5135

Patent

active

043192076

ABSTRACT:
In a switching follower filter of the narrow-band-pass type having n switched paths for filtering a signal having a useful component of variable frequency associated with a high background noise, the fundamental frequency of the input signal is captured and then followed by collecting a pre-filtered switching synchronization signal so that part of the input signal remains in the pre-filtered signal.

REFERENCES:
patent: 3445685 (1969-05-01), Roth
patent: 3532997 (1970-10-01), Faye

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