Telephonic communications – Emergency or alarm communications – Responsive to sensed nonsystem condition
Patent
1994-02-15
1995-09-26
Kuntz, Curtis
Telephonic communications
Emergency or alarm communications
Responsive to sensed nonsystem condition
379 39, 379 42, 379 59, H04M 1100
Patent
active
054540240
ABSTRACT:
A system for transmitting data between a subscriber site and at least one monitoring station, comprising a sensor circuit for generating data responsive to an event at the subscriber site, a first transmission circuit responsive to said sensor circuit and being operable to transmit data in packet form from the subscriber site to the monitoring station over a cellular digital packet data telecommunications network, a second transmission circuit responsive to said sensor circuit and being operable to transmit data from the subscriber site to the monitoring station over a second telecommunications network. A fault detect circuit is coupled to the first transmission circuit for continuously monitoring the operation of the first transmission circuit and the integrity of the cellular digital packet data telecommunications network. A control switch is coupled to the fault detect circuit and controlled thereby for automatically creating a signal path between the sensor circuit and the second transmission circuit.
REFERENCES:
patent: 4577182 (1986-03-01), Millsap et al.
patent: 4697281 (1987-09-01), O'Sullivan
patent: 4718079 (1988-01-01), Rabito
patent: 4742336 (1988-05-01), Hall
patent: 4856047 (1989-08-01), Saunders
patent: 4868859 (1989-09-01), Sheffer
patent: 4887290 (1989-12-01), Dop et al.
patent: 4972455 (1990-11-01), Phillips et al.
patent: 4993059 (1991-02-01), Smith et al.
patent: 5125021 (1992-06-01), Lebowitz
patent: 5128979 (1992-07-01), Reich et al.
patent: 5134644 (1992-07-01), Gavton et al.
Judson David H.
Kuntz Curtis
Woo Stella L.
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