Channel discriminator circuit for paging stations

Details Channel discriminator circuit for paging stations Channel discriminator circuit for paging stations

1989-09-13

1990-11-13

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

455214, 455221, 455222, H04B 110

Patent

active

049698524

ABSTRACT:
A channel discriminator circuit is specifically adaptable for use in association with a radio receiver in which DC voltage signals are generated which are proportional to the FM signals received by the radio receiver and an inhibit circuit will generate an inhibit signal denoting the reception of FM signals above a predetermined detection threshold corresponding to an assigned carrier frequency. The channel discriminator circuit will determine whether the FM signals received are centered within a predetermined band width corresponding to the assigned carrier frequency by comparing the DC voltage signal generated with upper and lower reference voltage limits generated by a potentiometer network and will cause the inhibit circuit to generate an inhibit signal only if the DC voltage representing the FM signal received is within the predetermined limits established by the potentiometer network.

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patent: 4731868 (1988-03-01), Dreier

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