04141006 is referenced by 91 patents and cites 4 patents.

A security system consists of a central digital processor system, e.g., a general purpose computer, to which plural remote units are connected by a digital communications link, e.g., telephone. The remote units include plural alarm sensors such as intrusion and heat sensors. In a data base of the central processor system are stored segments of data associated uniquely with remote premises having the remote units. The processor system includes a terminal for delivering alarm message reports, such as to a law enforcement agency. Specifically, the remote units have interrogation circuitry for interrogating the sensors to determine if they have been tripped, logic circuitry for causing transmission to the central processor system via the communications link of a sensor alarm data message in digital format signifying the sensor address and its tripped status. The central processor system includes correlation means for correlating the data message with the data base to determine logical validity or invalidity of the message. Means responsive to logical validity determination causes portions of the data message and corresponding segments of the data base to be assembled into an alarm message report for delivery by said terminal. SU

Security system for centralized monitoring and selective reporting of remote alarm conditions
Application Number
Publication Number
Application Date
July 14, 1976
Publication Date
February 20, 1979
Kenneth J Braxton
312 Astoria Rd., Springfield, 62704
Grace J Fishel
G08B 19/00
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