Direction indicator circuit

Details Direction indicator circuit Direction indicator circuit

1995-06-22

1997-05-13

Hofsass, Jeffery

Communications: electrical

Systems

In and out indicators

340328, 340528, 340556, 250221, G08B 516

Patent

active

056296673

ABSTRACT:
The present invention relates to an electrical circuit for use in an alarm system. The circuit and alarm system being in electrical communication with an electrical power source. The alarm system has a detector configured to generate a first signal and a second signal in response to triggering by an individual. The alarm system further has an announcer adapted to produce an IN announcement in response to an IN signal and an OUT announcement in response to an OUT signal. The circuit comprises a first circuit portion which is responsive to the first signal for generating the IN signal to activate the announcer; and a second circuit portion which is responsive to the second signal for generating the OUT signal to activate the announcer.

REFERENCES:
patent: 3852592 (1974-12-01), Scoville et al.
patent: 4272762 (1981-06-01), Geller et al.
patent: 4434363 (1984-02-01), Yorifuji et al.
patent: 5021644 (1991-06-01), Beran et al.

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