Noise rejection circuitry for a frequency discriminator

Details Noise rejection circuitry for a frequency discriminator Noise rejection circuitry for a frequency discriminator

1980-04-11

1981-11-24

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

328138, 333 17R, H03H 702, H03H 2100

Patent

active

043027385

ABSTRACT:
A noise reducing circuit for a frequency discriminator is disclosed for providing a frequency discriminator with reduced sensitivity to noise. Reducing the sensitivity to noise allows certain distortion measurements, such as the well-known SINAD test for broadcast receivers, to be made in the presence of high noise levels.

REFERENCES:
patent: 2763840 (1956-09-01), Pfleger
patent: 3314026 (1967-04-01), Maynard
patent: 3555439 (1971-01-01), Starr et al.

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