Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1983-06-16
1985-06-04
George, Keith E.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340525, H04M 1104
Patent
active
045216452
ABSTRACT:
An alarm system apparatus includes a plurality of sets of smoke or heat detectors located throughout a building. A plurality of automatic telephone dialers are also located in the building and each dialer has at least one set of smoke or heat detectors operatively connected thereto. A plurality of localized alarms are connected to the automatic dialer for actuation by the detectors and each automatic dialer is connected to a phone line into a microcomputer having stored thereon the position of each smoke and heat detector. The microcomputer, in turn, has a modem coupling it through the phone lines to a remote terminal. The microcomputer includes a connector for coupling a mobile terminal to the computer from the exterior of the building. In addition, the auto dialer is equipped with a relay for switching in an auxiliary battery supply in the event of power loss.
REFERENCES:
patent: 4141006 (1979-02-01), Braxton
patent: 4259548 (1981-03-01), Fahey et al.
patent: 4459582 (1984-07-01), Sheahan et al.
John T. Boatwright, "Alarm Reporting Services: An Untapped TELCO Market", Telephony, Sep. 14, 1981; pp. 74, 76, 78, 81.
Remy Brodeur, "A Microcomputer Based Alarms Concentration System," 1980 International Conference: Security Through Science and Engineering, Sep. 23-26, 1980, Technical University of Berlin, Federal Republic of Germany, pp. 293-296.
George Keith E.
Hobby III William M.
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