Data communication device

Telephonic communications – Emergency or alarm communications – Responsive to sensed nonsystem condition

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Details

379 59, 340539, H04M 1100

Patent

active

051346443

ABSTRACT:
Disclosed herein are two embodiments of an alarm and security system. The first is a stand alone alarm and security system which includes a control panel and at least one transceiver for sending and receiving a control signal and a base station. The control panel receives information about one or more desired conditions in one or more geographical areas and transmits the information to a base station via the transceiver. The base station receives the information from the control panel and transmits the appropriate control signals to the control panel. The second embodiment includes a communications panel including first transceiver for receiving information about one or more desired conditions in one or more geographical areas and for receiving a control signal and for transmitting the desired condition information and a control signal to a base station. Either embodiment accepts information from an existing panel via telephone line and transfers a full data message to the base station.

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patent: 4228424 (1980-10-01), Le Nay et al.
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patent: 4521645 (1985-06-01), Carroll
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patent: 4724425 (1988-02-01), Gerhart et al.
patent: 4868859 (1989-09-01), Sheffer
patent: 4887290 (1989-12-01), Dop et al.
patent: 4993059 (1991-02-01), Smith et al.

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