Audiovisual signaling device and method

Details Audiovisual signaling device and method Audiovisual signaling device and method

1989-09-11

1990-10-30

Crosland, Donnie L.

Communications: electrical

Systems

Plural

340331, 340332, 340384R, 34081511, 315200A, 315241S, G08B 2700

Patent

active

049671774

ABSTRACT:
An audiovisual signaling device includes in electrical connection: (a) an auditory output portion which produces an auditory output and a corresponding low voltage oscillatory signal; (b) a converter portion which is responsive to and converts the low voltage oscillatory signal to a repetitively produced corresponding high voltage intermittent spike signal; (c) a visual output portion which produces a visual output; and (d) a portion responsive to the high voltage intermittent spike signal to repetitively activate the visual output.

REFERENCES:
patent: 3921034 (1975-11-01), Nakamura
patent: 4065700 (1977-12-01), Liebman
patent: 4101880 (1978-07-01), Haus
patent: 4274084 (1981-06-01), Hans
patent: 4486691 (1984-04-01), Beggs
patent: 4495447 (1985-01-01), Shigemi
patent: 4742328 (1988-05-01), Arai et al.
patent: 4775821 (1988-10-01), Sikora
patent: 4779027 (1988-10-01), Sikora

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