Abstract: A physical security system having a plurality of sensors and a sensor report aggregator. The sensors may detect a large number of physical activities. The aggregator may cluster a large number of detected reports to a small number of sets of reports. The sets of reports may be reduced to hypotheses. From the hypotheses, the aggregator may develop hypotheses about the physical environment which the sensors are monitoring in view of a security reference model. The security reference model may include, but not be limited to, facility models, physical security models, and/or attack models. The hypotheses may have probabilities assigned to them according to their certitude of likelihood and severity of danger.

Abstract: A system and method to detect acoustic signals from fire sprinkler heads discharging water and to locate such devices in a public building, airport, sports stadium or other structure which can include a system to measure speech intelligibility. Time and frequency domain analysis are carried out to establish the presence of signals characteristic of water discharge from a fire sprinkler.

Abstract: A measurement system and method combine an audio announcement system with a plurality of spaced apart sensors to evaluate intelligibility of audio output from loudspeakers of the audio announcement system. Processing can take place at some or all of the sensors as well as at a common control element. Evaluations can be based on use of an appropriate speech intelligibility index method.

Abstract: A system for providing audio-based information pertaining to a situation communicated to a first responder en route to the situation. The information may include real-time and current data of the on-going situation (e.g., a building fire). The information may be relayed to the first responder by a dispatch center, or other intermediary, or come directly from monitoring instrumentation at a location of the situation. Also, background and/or preplanned information about the location may be provided to the first responder via a handset or other device. The responder may request certain information via the handset or device in a vehicle en route with voice requests or button activation. Visual displays of information on the instrumentation may be converted to audio- or speech-based displays for the responder.

Abstract: A measurement system and method combine an audio announcement system with a plurality of spaced apart wirelessly coupled devices which evaluate speech intelligibility of audio output from loudspeakers of the audio announcement system. Processing can take place at some or all of the devices as well as at a common control element. Evaluations can be based on use of a method which maps to a Common Intelligibility Scale.

Abstract: A system and method to detect acoustic signals from fire sprinkler heads discharging water and to locate such devices in a public building, airport, sports stadium or other structure which can include a system to measure speech intelligibility. Time and frequency domain analysis are carried out to establish the presence of signals characteristic of water discharge from a fire sprinkler.

Abstract: A system for providing audio-based information pertaining to a situation communicated to a first responder en route to the situation. The information may include real-time and current data of the on-going situation (e.g., a building fire). The information may be relayed to the first responder by a dispatch center, or other intermediary, or come directly from monitoring instrumentation at a location of the situation. Also, background and/or preplanned information about the location may be provided to the first responder via a handset or other device. The responder may request certain information via the handset or device in a vehicle en route with voice requests or button activation. Visual displays of information on the instrumentation may be converted to audio- or speech-based displays for the responder.

Abstract: In an embodiment, a computer-based service security system receives a communication such as a query. The system processes that query in a server, which may be referred to as a lead server, and creates a plurality of copies of that lead server. The query is transferred to the plurality of copies of the lead server when the query did not cause a problem in the lead server. The query is transferred to a learning server when the query caused a problem in the lead server. The lead server is replaced by one of the copies of the lead server when the query caused a problem on the lead server.

Abstract: A system and method to detect PASS-type device audio alarm signals and to locate such devices in alarm in a public building, airport, sports stadium or other structure which can include a system to measure speech intelligibility. Time and frequency domain analysis are carried out to establish the pressure of PASS-type device audio output signals.

Abstract: A computer/computer network security alert management system aggregates information from multiple intrusion detectors. Utilizing reports from multiple intrusion detectors reduces the high false alarm rate experienced by individual detectors while also improving detection of coordinated attacks involving a series of seemingly harmless operations. An internal representation of a protected enclave is utilized, and intrusion detection system (IDS) information is correlated to accurately prioritize alerts. In one embodiment, the system is capable of utilizing data from most existing IDS products, with flexibility to add further IDS products.

Abstract: A physical security system having a plurality of sensors and a sensor report aggregator. The sensors may detect a large number of physical activities. The aggregator may cluster a large number of detected reports to a small number of sets of reports. The sets of reports may be reduced to hypotheses. From the hypotheses, the aggregator may develop hypotheses about the physical environment which the sensors are monitoring in view of a security reference model. The security reference model may include, but not be limited to, facility models, physical security models, and/or attack models. The hypotheses may have probabilities assigned to them according to their certitude of likelihood and severity of danger.

Abstract: Anomaly detection technology is used to detect attempts at remote tampering of communications used to control components of critical infrastructure. Intrusions in a control network are detected by monitoring operational traffic on the control network. Activity outside a normal region is identified, and alerts are provided as a function of identified activity outside the normal region. A stide algorithm may be used to identify such activity.

Abstract: A measurement system and method combine an audio announcement system with a plurality of spaced apart wirelessly coupled devices which evaluate speech intelligibility of audio output from loudspeakers of the audio announcement system. Processing can take place at some or all of the devices as well as at a common control element. Evaluations can be based on use of a method which maps to a Common Intelligibility Scale.

Abstract: A measurement system and method combine an audio announcement system with a plurality of spaced apart sensors to evaluate intelligibility of audio output from loudspeakers of the audio announcement system. Processing can take place at some or all of the sensors as well as at a common control element. Evaluations can be based on use of an appropriate speech intelligibility index method.