Hum reduction circuit

Details Hum reduction circuit Hum reduction circuit

1980-07-02

1982-06-22

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333 19, 333167, H03H 1900, H03H 1700, H03H 1702

Patent

active

043365132

ABSTRACT:
Apparatus for reducing the fundamental and harmonic frequencies of hum in a signal comprising means for placing a plurality of signal storage means between an input to which the signal is applied and an output in repeated sequence that is synchronous with the fundamental frequency of hum in such manner as to subtract the amount of signal stored from the signal passing between the input and output. The storage means are in a charging circuit having a time constant such that it requires a number of sequences to build the signal stored to its full amplitude.

REFERENCES:
patent: 3729695 (1973-04-01), Condon
patent: 3793599 (1974-02-01), Coor
patent: 3795877 (1974-03-01), Poole

Affiliated with

Also associated with

Rating

Hum reduction circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hum reduction circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hum reduction circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-655041