Intelligent alarm apparatus with interfacing to a telephone netw

Details Intelligent alarm apparatus with interfacing to a telephone netw Intelligent alarm apparatus with interfacing to a telephone netw

1992-04-14

1994-01-11

Chan, Wing F.

Telephonic communications

Emergency or alarm communications

Responsive to sensed nonsystem condition

H04M 1104

Patent

active

052788881

ABSTRACT:
An intelligent alarm apparatus with a telephone network interface. The alarm apparatus includes an alarm sensor, which is directly connected at a high impedance level through an integrator and a detector to the alarm signal input of a programmable processor. The processor is in a power-saving standby mode until an alarm signal is received. Once an alarm signal is received at the processor, an output signal is transmitted to the designation programmed in the processor. A power supply section of the alarm apparatus is connected to a telephone line from which the alarm apparatus obtains its power feed.

REFERENCES:
patent: 4390750 (1983-06-01), Bartelink
patent: 4691344 (1987-09-01), Brown et al.

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