Communications: electrical – Systems – Plural
Patent
1987-07-15
1989-09-19
Orsino, Joseph A.
Communications: electrical
Systems
Plural
340392, 340330, G08B 2700
Patent
active
048685402
ABSTRACT:
A programmable doorbell system includes a solid state battery powered doorbell controller for connection to existing doorbell circuitry of a house, three segment display, doorbell control circuit, tone generator, control switches, and power source. The programmable controller includes a clock, memory, bell enable control circuit and display control circuit. The three segment LCD display includes a segment for continously displaying the name of the occupant, and two segments for displaying a selected doorbell answering type message. The doorbell control circuit connects the doorbell to the existing doorbell power circuit. The tone generator provides an audible sound as a message attention getter. The control switches include a manual on/off switch connected to the doorbell enable circuit for overriding the automatic mode of operation, and a mode and a change switch connected to the display control circuit for entering program parameters for the programmable controller. The clock provides the time of day. The memory stores the messages, the time of day (updated every minute), and a doorbell disable and enable time for comparison and provides a disable and an enable signal to the doorbell enable control circuit to control the doorbell control circuit. The display control is connected: to the memory, mode and change switches and coacts with the blinking display for programming the operating parameters including the message selection, the time of day, the disable and enable times, the name of occupant; and to the display for displaying the occupant's name and message.
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Hofsass Jeffery A.
Orsino Joseph A.
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