Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
226 words
In a system including one or more computers adapted to receive and process input signals and generate output signals in accordance with programmed information, the combination of, a plurality of alarm sensors capable of producing alarm output signals in response to alarm conditions and trouble output signals in response to circuit trouble or tamper conditions, an electronic circuit means connected between said alarm sensors and a computer, said electronic circuit means including a comparator circuit associated with each of said alarm sensors for comparing the output signals from the alarm sensor to a first threshold indicative of an alarm condition and a second threshold indicative of a trouble or tamper condition and developing output signals indicative thereof, said electronic circuit means storing the output signals produced by said comparator circuits, control circuit means coupling said electronic circuit means to said computer to gate said output signals of said comparator circuits to said computer as requested by the computer, and tamper test circuit means operatively connected between said computer and said alarm sensors for applying a tamper test signal from said computer to said alarm sensors to monitor the operational integrity of the alarm sensor circuits as a function of the output signal developed by the comparator circuit as a result of the comparison of the output signal developed by the alarm sensor to said second threshold.
Claim 2
Dependent Claim
226 words
In a system including one or more computers adapted to receive and process input signals and generate output signals in accordance with programmed information, the combination of, a plurality of alarm sensors capable of producing alarm output signals in response to alarm conditions and trouble output signals in response to circuit trouble or tamper conditions, an electronic circuit means connected between said alarm sensors and a computer, said electronic circuit means including a comparator circuit associated with each of said alarm sensors for comparing the output signals from the alarm sensor to a first threshold indicative of an alarm condition and a second threshold indicative of a trouble or tamper condition and developing output signals indicative thereof, said electronic circuit means storing the output signals produced by said comparator circuits, control circuit means coupling said electronic circuit means to said computer to gate said output signals of said comparator circuits to said computer as requested by the computer, and tamper test circuit means operatively connected between said computer and said alarm sensors for applying a tamper test signal from said computer to said alarm sensors to monitor the operational integrity of the alarm sensor circuits as a function of the output signal developed by the comparator circuit as a result of the comparison of the output signal developed by the alarm sensor to said second threshold.
Claim 3
Dependent Claim
58 words
In a system as claimed in claim 1 wherein said comparator circuits are identical, and signal conditioning circuits coupling each of said alarm sensors to the associated comparator circuit, each of said signal conditioning circuits adjusting the characteristics of the output signals produced by the respective alarm sensors to render the output signals compatible with the comparator circuits.
Claim 4
Dependent Claim
27 words
In a security system as claimed in claim 1 further including display means connected to said electronic circuit means to display said signals of said second outputs.
Claim 5
Dependent Claim
84 words
In a system as claimed in claim 1 further including a plurality of signal producing/signal receiving circuits, and an electronic circuit means coupling each of said signal producing/signal receiving circuits through said control circuit means to said computer for storing first signals transmitted by said computer through said control circuit means for said signal producing/signal receiving circuits, and storing second signals transmitted by said signal producing/signal receiving circuits for transfer to said computer by said control circuit means at the request of said computer.