Annunciator

Details Annunciator Annunciator

1979-12-17

1982-08-24

Konick, Bernard

357 15, H04M 100

Patent

active

043462650

ABSTRACT:
An annunciator is disclosed which has an improved charging circuit for storing the energy of a ring signal received via an improved Schottky diode bridge rectifier, and an oscillator-driven variable divider which actuates an audible output device when the stored charge exceeds a threshold level.

REFERENCES:
patent: Re28283 (1974-12-01), Cowpland et al.
patent: 4189626 (1980-02-01), Malerba et al.

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