Communications: electrical – Digital comparator systems
Patent
1974-12-10
1977-02-01
Yusko, Donald J.
Communications: electrical
Digital comparator systems
340409, 340276, 340164R, 340163, G08B 2300, H04Q 900
Patent
active
040064603
ABSTRACT:
A bidirectional electronic interface couples remote sensing security transducers such as fire and burglar monitoring devices to a computer such that the circuitry of the bidirectional electronic interface functions to both transmit signals from the remote sensing transducer to the computer for analysis and processing and transmit control and data information to remote control and monitoring stations. The computer scans the content of the bidirectional electronic interface for remote transducer information with the bidirectional electronic interface serving as a storage apparatus. The computer is programmed to respond to the information presented by the bidirectional electronic interface to initiate predetermined control and data recording functions for both direct activation of remote apparatus and for transmittal of control signals through the bidirectional electronic interface circuitry to remote apparatus. The flexibility provided by the bidirectional electronic interface circuitry provides for effective and efficient utilization of conventional computer capability in a security system. Circuitry of the type disclosed herein has been described in detail in U.S. Pat. No. 3,805,234 entitled "Digital Data Transmission Systems" issued Apr. 14, 1974 and U.S. Pat. No. 3,910,322 entitled "A Test Set Controlled By A Remotely Positioned Digital Computer", both of which have been assigned to the assignee of the present invention.
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Bajackson Richard A.
Blair Gerard M.
Diffrient Roy S.
Hewitt William D.
Lynch M. P.
Westinghouse Electric Corporation
Yusko Donald J.
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