Abstract: Aspects of the disclosure include a threat detecting apparatus. The threat detecting apparatus can include an interface circuit, an opcode detector, and a pattern analyzer. The interface circuit is configured to receive a data stream. The opcode detector can be configured to identify an opcode sequence embedded in the data stream based on a first model graph that includes a plurality of interconnected token nodes. Each token node is representative of an occurrence or a non-occurrence of a token. The pattern analyzer may be configured to identify an opcode signature embedded in the identified opcode sequence based on a second model graph, and to output a signal indicative of the successful identification of the opcode signature. The second model graph can include a plurality of interconnected opcode nodes, and each opcode node can be representative of an occurrence or a non-occurrence of a predetermined combination of one or more opcodes.

Abstract: Aspects of the disclosure include a threat detecting apparatus. The threat detecting apparatus can include an interface circuit, an opcode detector, and a pattern analyzer. The interface circuit is configured to receive a data stream. The opcode detector can be configured to identify an opcode sequence embedded in the data stream based on a first model graph that includes a plurality of interconnected token nodes. Each token node is representative of an occurrence or a non-occurrence of a token. The pattern analyzer may be configured to identify an opcode signature embedded in the identified opcode sequence based on a second model graph, and to output a signal indicative of the successful identification of the opcode signature. The second model graph can include a plurality of interconnected opcode nodes, and each opcode node can be representative of an occurrence or a non-occurrence of a predetermined combination of one or more opcodes.

Abstract: Aspects of the disclosure include a threat detecting apparatus. The threat detecting apparatus can include an interface circuit, an opcode detector, and a pattern analyzer. The interface circuit is configured to receive a data stream. The opcode detector can be configured to identify an opcode sequence embedded in the data stream based on a first model graph that includes a plurality of interconnected token nodes. Each token node is representative of an occurrence or a non-occurrence of a token. The pattern analyzer may be configured to identify an opcode signature embedded in the identified opcode sequence based on a second model graph, and to output a signal indicative of the successful identification of the opcode signature. The second model graph can include a plurality of interconnected opcode nodes, and each opcode node can be representative of an occurrence or a non-occurrence of a predetermined combination of one or more opcodes.

Abstract: A computerized classifier system that forms convex hulls containing all training experiences for each target class (e.g. threat/non-threat) is disclosed. The intersection of convex hulls for each pair of classes defines a region of ambiguity in feature space. Measurement of feature vector(s) outside an ambiguous region of feature space leads to a class decision while measurement of feature vector(s) within an ambiguous region of feature space defined by convex hulls causes a transition to a new feature space with new features. In particular embodiments, measured feature data includes estimated motion states and electrical lengths of a given object, and range, velocity and acceleration image data from second phase differences for debris mitigation.

Abstract: A method for analyzing ballistic trajectories comprises determining invariants for known ballistic objects, defining a reference graph having nodes corresponding to the invariants, and defining a query graph having nodes connected to nodes of the reference graph corresponding to anticipated invariant queries to be made using the query graph. One or more sets of invariants corresponding to trajectories of one or more observed objects are input into the reference graph and traverse through the nodes of the reference graph, leaving a record in the nodes traversed. A query is selected for the query graph corresponding to one or more range of invariants, the query generating a query result identifying the nodes of the reference graph that satisfy the query. Identifying each of the observed objects identified by a record in the identified nodes determines which of the one the observed objects satisfy the query.

Abstract: A plug-and-socket arrangement connects an appliance to a mains-powered battery charger/power supply. To avoid unwanted power consumption when the appliance is disconnected from the charger/power supply, the plug-and-socket arrangement disconnects the mains power from the battery charger/power supply when the appliance plug is disconnected from the appliance socket.

Abstract: A computerized classifier system that forms convex hulls containing all training experiences for each target class (e.g. threat/non-threat) is disclosed. The intersection of convex hulls for each pair of classes defines a region of ambiguity in feature space. Measurement of feature vector(s) outside an ambiguous region of feature space leads to a class decision while measurement of feature vector(s) within an ambiguous region of feature space defined by convex hulls causes a transition to a new feature space with new features. In particular embodiments, measured feature data includes estimated motion states and electrical lengths of a given object, and range, velocity and acceleration image data from second phase differences for debris mitigation.

Abstract: A method for classifying unclassified vehicle tracks using real-time sensor data comprises acquiring a computer database of vehicle track characteristics data for known vehicle tracks; defining vehicle track signatures based on the vehicle track characteristics data; and generating a graph based on the vehicle track signatures, the graph having state nodes representative of distinguishing vehicle track characteristics defined in the vehicle track signatures and links between the state nodes representative of relationships between distinguishing vehicle track characteristics defined in the vehicle track signatures, said graph also having reporting nodes for classifying unknown vehicle tracks when sufficient distinguishing vehicle track characteristics have been observed. The method also comprises processing with the graph, using a processor, real-time sensor data corresponding to a first unclassified vehicle track until the first unclassified vehicle track is classified.

Abstract: A method for tracking an object using radar includes detecting a wideband radio frequency (“RF”) energy at a first radar sensor tracking the object and determining in a computer process if a booster is propelling the object based on the wideband RF energy. The object is tracked in a computer process based on a ballistic trajectory if the booster is not propelling the object, and the object is tracked in a computer process based on a non-ballistic trajectory if the booster is propelling the object.

Abstract: An arrangement analyzes a data stream to identify particular token sequences known to be of interest or malware. A preprocessing step organizes the malware tokens into a “graph” in which overlapping token sequences are interconnected with logic splices. The preprocessing is performed only once for a given set of malware targets. The resulting graph can be traversed quickly in runtime operation to identify malware token strings in the data stream.

Abstract: A method and system that prevents engagement with neutral aircraft utilizes secondary surveillance radar (SSR) in conjunction with traffic alert collision avoidance systems (TCAS) conventionally found on various commercial aircraft. The system and method provide for detecting interrogating signals sent out by a TCAS system of an interrogating aircraft searching for another aircraft that may pose a threat for collision. The system and method of the invention provide for a base system generating signals responsive to the interrogation signals such that there is a decreasing time difference between the interrogating signals and the responsive signals. The decreasing time difference indicates to the interrogating aircraft that another aircraft is approaching its airspace urging the neutral aircraft to change course and avoid entering a guarded tactical airspace thus avoiding unnecessary engagement of the aircraft.

Abstract: A command and control system for analyzing target track positional information by comparing target location to pregenerated geographic information.

Abstract: A method and system provide for confirmation of friendly aircraft as a backup to conventional IFF (identification, friend or foe) telecommunication systems and methods. An IFF secondary radar signal is generated and directed to an aircraft. When no confirming response is received within a pre-determined time period, the invention provides for generating and transmitting a pre-arranged modulated signal to the aircraft. In response to receiving the pre-arranged modulated signal, the aircraft notifies the aircrew to execute a pre-arranged kinematic maneuver that is detected by the systems using radar means to confirm that the aircraft is a friendly aircraft.

Abstract: A plug-and-socket arrangement connects a portable appliance to a mains-powered battery charger/power supply. To avoid unwanted power consumption while the appliance is not connected, the plug-and-socket arrangement, when unplugged so that the appliance can be made portable, disconnects the mains power from the battery charger/power supply.

Abstract: A method conveys information over a network to client processors, each with a maximum analysis rate. Sensed signals include target track updates generated at an aggregate track update rate depending on the number of targets and sensors. The track updates are prioritized. The prioritized updates are analyzed, for each client, in view a channel-priority representing the time rate of updates previously sent to the client. The selected higher-priority updates are destined for the client at an average rate no greater than the maximum analysis rate of the client. The lower-priority track updates not destined for the client are deleted. The selected updates are transmitted to their client processors.

Abstract: In the method of making hollow glass articles wherein the article is subjected to an operation such that glass particles are deposited and held on the interior of the glass article, the method of removing such particles which comprises contacting the glass article with a resonator of an ultrasonic generator system and subjecting the article to ultrasonic vibrations from the ultrasonic generator.