Patent ID: 6061554
Filing Date: 2000-05-09
Classification: H04B

Abstract:
An asymmetric device having at least one sensor, an amplifier, a noise suppression device, and at least two conductors connected to inputs of said amplifier, one of said at least two conductors being a ground conductor such that said ground conductor is attached to a system ground and connected to said noise suppression device, said ground conductor having a natural impedance and an other one of said at least two conductors being connected to a source, said device comprising:means for collecting an interference signal generated by said at least one sensor on one of said at least two conductors other than said ground conductor; means for tuning connected in series with said means for collecting, said means for tuning operating based upon a frequency of said interference signal; andmeans for injecting current into said ground conductor connected in series with said means for tuning, said means for injecting current creating a voltage across said impedance of said ground conductor, said voltage having a value approximating said interference signal whereby said asymmetric device simulates a symmetric system.