Universal noise controller

Details Universal noise controller Universal noise controller

1996-09-23

2000-10-24

Bettendorf, Justin P.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333170, 333181, 333177, H03H 700

Patent

active

061373796

ABSTRACT:
A universal noise controller is constructed of two windings on a magnetic core with a potentiometer connected across the windings. The input is connected in parallel to the windings and the potentiometer and the output is taken from a node in the center of the windings and a wiper arm of the potentiometer. This arrangement allows a phase change of 360 degrees by overlaying another signal thus providing phase cancellation from positive 180 degrees to negative 180 degrees thereby providing suitable noise cancellation based on the position of the wiper arm.

REFERENCES:
patent: 1924486 (1933-08-01), Crouse
patent: 2110817 (1938-03-01), Penn
patent: 2397772 (1946-04-01), Badmaieff
patent: 3263191 (1966-07-01), Arvonio
patent: 3375446 (1968-03-01), Guyton
patent: 4600903 (1986-07-01), Temer
patent: 5202656 (1993-04-01), Clark et al.
patent: 5227745 (1993-07-01), Oda et al.
Matsch, "Electromagnetic and Electromechanical Machines", 2nd ed., Harper & Row Publishers, New York, NY, pp. 116-117, 1977.

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