Combined audible and visual signaling device

Details Combined audible and visual signaling device Combined audible and visual signaling device

1995-08-07

1996-11-19

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

With particular coupling link

340521, 340692, 340531, 34082519, G09B 108

Patent

active

055766900

ABSTRACT:
Push button controlled wireless transmitters send digitally encoded signals to a plug-in receiver/signaling device. The receiver/signaling device has a microprocessor suitably programmed to respond to signals from a transmitter bearing the discrete address of the receiver, and to decode a transmitter identification code. Thereupon the microprocessor supplies an audio output circuit with signals to simulate selectively mechanical front or back door chimes, and supplies signals to energize a strobe lamp to emit bursts of multiple flashes, the number of flashes in a burst identifying the specific transmitter, whereby a person with a hearing deficiency is informed as to which transmitter is being actuated.

REFERENCES:
patent: D360156 (1995-07-01), Fenne
patent: 3054944 (1962-09-01), Brooke
patent: 3054994 (1962-09-01), Haram
patent: 4227191 (1980-10-01), Raber
patent: 4365238 (1982-12-01), Kollin
patent: 4379210 (1983-04-01), Sparber
patent: 4777474 (1988-10-01), Clayton
patent: 5140304 (1992-08-01), Miller

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