Fail-safe band-pass circuit

Details Fail-safe band-pass circuit Fail-safe band-pass circuit

1979-11-26

1982-03-16

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including frequency-responsive means in the signal...

330189, H03F 304

Patent

active

043203540

ABSTRACT:
A vital narrow band-pass filter which operates in a fail-safe manner and includes a single stage input resonant circuit, an intermediate multistage parallel resonant circuit, and an output amplifying circuit for passing a given center carrier frequency signal and for attenuating adjacent carrier frequency signals.

REFERENCES:
patent: 3042885 (1962-07-01), Myers
patent: 3246142 (1966-04-01), Duckitt et al.
patent: 3585519 (1971-06-01), Burgess
patent: 3588533 (1971-06-01), Rhoton
patent: 3725802 (1973-04-01), Darrow
patent: 3890577 (1975-06-01), Grundy
patent: 4001710 (1977-01-01), Darrow

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