Abstract: A system and method for real-time detection of anomalies in database or application usage is disclosed. Embodiments provide a mechanism to detect anomalies in database or application usage, such as data exfiltration attempts, first by identifying correlations (e.g., patterns of normalcy) in events across different heterogeneous data streams (such as those associated with ordinary, authorized and benign database usage, workstation usage, user behavior or application usage) and second by identifying deviations/anomalies from these patterns of normalcy across data streams in real-time as data is being accessed. An alert is issued upon detection of an anomaly, wherein a type of alert is determined based on a characteristic of the detected anomaly.

Abstract: A method for using shadow Java classes to provide private metadata in an application. An XML schema defining a public API is used by a generator to create the public API data classes and a corresponding set of shadow classes. The shadow classes contain metadata describing each corresponding API class, including overall class metadata, and metadata pertaining to each field in the class. When a public class is to be encoded and sent out over the wire, the encoder looks up the shadow metadata—which includes the class structure and eliminates the need to use Java reflection to expand the class. The encoder then walks through the fields of the class and encodes the object—using shorthand simplifications enabled by the metadata. The encoding process is fast because of the avoidance of reflection, and the encoded data is compact due to the simplifications. A similar process is used for de-serializing.

Abstract: An inverting reciprocal quantum logic (RQL) gate circuit has an input stage having a logical input asserted based on receiving a positive single flux quantum (SFQ) pulse and an output stage comprising phase mode logic (PML) inverter circuitry. The input stage includes one or more storage loops, at least one being associated with each logical input, each comprising an input Josephson junction (JJ), a storage inductor, and a logical decision JJ, the logical decision JJ being common to all the storage loops associated with the logical inputs and being configured to trigger based on biasing provided by one or more currents stored in the storage loops and a first bias signal provided to the input stage. The output stage de-asserts an output and is provided with a second bias signal having a second state opposite of a first state of the first bias signal.

Abstract: An optical communications system includes a modulator/demodulator (modem) to transmit outgoing communications data and to receive incoming communications data in a transceiver. A main detector is coupled to the modem to convert an optical signal representing the incoming communications data to an electrical signal for the modem. An adaptive data rate processor monitors the electrical signal from the main detector to determine a current power level for the optical signal. The adaptive data rate processor dynamically adjusts a data rate of the modem based on the determined current power level of the optical signal.

Abstract: A biometric data brokerage system (BDPS) and method for transfer of biometric records between at least one biometric collection device (BCD) and at least one biometric processing service (BPS) are disclosed. Embodiments provide a BDPS that utilizes biometric record translation routines that allow for biometric record submissions from any BCD to any BPS, regardless of biometric record format requirements. The need for costly and proprietary biometric record formatting software on BCDs is thereby eliminated.

Abstract: A layered architecture for customer payload systems is disclosed to provide a scalable, reconfigurable integration platform targeted at multiple unmanned aerial vehicles (UAV), and remove both UAV specific and payload equipment specific characteristics that increase complexity during integration. The layered architecture is a modular design architecture that is split by function. Standard interfaces are implemented between functional layers to increase reconfiguration possibilities and to allow reuse of existing components and layers without modification to the payload or UAV. The standard interfaces also promote easy connection and disconnection from other layer components. Additionally, once the layered architecture is implemented, technological or functional requirements changes can be isolated to one specific component layer, not the entire payload stack.

Abstract: A cable termination system and method include providing an outer socket having a frustum shaped socket interior tapering from a base to a top opening. The outer socket is comprised of two semicircular socket pieces, each forming a portion of a complete circumference of the outer socket. A plurality of elongate cable strands extend through the socket interior with individual strands circumferentially spaced to form a single layer of strands at the base opening. A frustoconical inner plug is inserted into the socket by a compressive force exceeding a maximum tensile force of the stranded cable for holding the cable in the socket without slippage when a tensile force is applied between the cable and the outer socket. The inner plug includes a plurality of longitudinally extending, laterally separate plug subassemblies.

Abstract: A digital-to-analog converter (DAC) including a DAC core circuit having a plurality of input lines each being responsive to a digital bit input signal and an output line outputting a converted analog signal of the digital bits. The DAC also includes a clock circuit responsive to a clock input signal at one frequency and outputting a clock output signal at another frequency. The DAC also includes a clock tree distribution network responsive to the clock output signal from the clock circuit and splitting the clock output signal into a plurality of split clock signals that are applied to the DAC core circuit, where the DAC core circuit is fabricated in an indium phosphide (InP) semiconductor material and the clock tree distribution network is fabricated in a silicon germanium (SiGe) semiconductor material.

Abstract: A thermally-conductive and mechanically-robust bonding method for attaching a metal nanowire (MNW) array to an adjacent surface includes the steps of: removing a template membrane from the MNW; infiltrating the MNW with a bonding material; placing the bonding material on the adjacent surface; bringing an adjacent surface into contact with a top surface of the MNW while the bonding material is bondable; and allowing the bonding material to cool and form a solid bond between the MNW and the adjacent surface. A thermally-conductive and mechanically-robust bonding method for attaching a metal nanowire (MNW) array to an adjacent surface includes the steps of: choosing a bonding material based on a desired bonding process; and without removing the MNW from a template membrane that fills an interstitial volume of the MNW, depositing the bonding material onto a tip of the MNW.

Abstract: An unmanned aerial vehicle (UAV) can be deployed from a small stowed package for flight and stowed back into the package after the flight is complete is disclosed. The UAV is retracted to a volume that is less than half of it's fully deployed volume. This allows the UAV to be transported to any desired field position on a truck or other convenient transportation. The UAV may also be launched from a ship deck. In a further aspect, the flexible deployment of the UAV will allow a single UAV to be used in place of multiple types of UAVs.

Abstract: A laser frequency converter includes a first substrate material forming a first planar surface that includes a first nonlinear material situated along a portion of the first planar surface of the first substrate material to perform a frequency conversion of a laser signal. The frequency converter includes a second substrate material forming a second planar surface and separated by a distance from the first planar surface of the first substrate material. The second substrate material includes a second nonlinear material situated along a portion of the second planar surface of the second substrate material to perform the frequency conversion of the laser signal in conjunction with the first non-linear material. The second nonlinear material is offset from the first nonlinear material along an axis of propagation for the laser signal.

Abstract: A integrated circuit and methods for fabricating the circuit are provided. The circuit integrates at least one circuit element formed from a material that is superconducting at temperatures less than one hundred milliKelvin and at least one resistor connected to the circuit element. The resistor is formed from an alloy of transition metals that is resistive at temperatures less than one hundred milliKelvin.

Abstract: A method for removing distortions in a transmitted signal transmitted by a high power amplifier in a satellite communications system. The method characterizes the high power amplifier to define a series of Volterra coefficients and uses those coefficients in an equalizer in a receiver in the communications system to remove the distortions. The equalizer is a non-linear soft interference cancellation and minimum mean square error equalizer that employs three processing operations including parallel soft interference cancellation, minimum mean square error filtering and a priori log-likelihood ratio calculations.