Noise cancelling circuit

Details Noise cancelling circuit Noise cancelling circuit

1987-06-24

1988-07-26

LaRoche, Eugene R.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307451, 307520, 328111, H03K 522

Patent

active

047602791

ABSTRACT:
A noise cancelling circuit includes a delay circuit for delaying an input signal which is supplied to an input terminal, and a signal processing circuit responsive to the input signal and an output signal from the delay circuit, to generate an output signal corresponding to the input signal. The signal processing circuit has a first switching circuit, which includes first and second switching elements connected in series between a first power supply terminal and an output, and a second switching circuit, which includes third and fourth switching elements connected in series between a second power supply terminal and the output, wherein the first and third switching elements are responsive to the aforementioned input signal, by which they are set in mutually opposite conduction states, and the second and fourth switching elements are responsive to the output signal of the delay circuit, by which they too are set in mutually opposite conduction states.

REFERENCES:
patent: 4216388 (1980-08-01), Wilson
Japanese Patent Disclosure (KOKAI) No. 50-134751; Noise Cancelling Circuit, J. Kishimoto; filed Apr. 15, 1974.
Japanese Patent Disclosure (KOKAI) No. 51-15362; Noise Canceller for Digital Data Transmission Circuit; N. Ishibashi filed Jul. 29, 1974.

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