Abstract: Embodiments disclosed herein describe a network interface device including a first powered device controller coupled to first and second power supply lines. A second powered device controller coupled to third and fourth input power supply lines. A dc-dc converter coupled to receive a single signal representing a sum of power signals output by the first and second powered device controllers.

Abstract: A gimbaled truss assembly is disclosed including a frame rotatably mounted in a gimbal mount, and a truss rotatably mounted within the frame. The truss is configured to retain a propulsion system. The frame and the truss rotate independently of one another. A fastening system for mounting the propulsion system to the truss includes vibration isolators. A plurality of braces are coupled to the gimbal mount. The braces conform to the external surface of an air vehicle on which the assembly is to be attached.

Abstract: A hypersonic waverider aircraft is disclosed that includes a first engine and an inlet including a throat. The inlet is configured to generate three-dimensional flow compression during hypersonic flight with a weak shock wave that begins at the leading edge surfaces of the inlet and coalesces ahead of the throat, and a weak shock wave that begins at the point of coalescence of the weak shock wave and extends to the throat. The inlet includes a v-shaped lip open to freestream airflow in one side of the inlet.

Abstract: A power converter comprises a direct current (DC)-DC converter configured to receive an input voltage in a primary domain, a transformer coupled to and driven by the DC-DC converter and supplying an output voltage in a secondary domain, and a transmission path configured to pass a digital feedback signal through an isolation barrier from the secondary domain to the primary domain.

Abstract: A network interface apparatus is disclosed that includes a connector coupled to a plurality of communication lines. A Physical Layer (PHY) device coupled to the communication lines and to a first ground level. A transient event suppression module coupled between the communication lines and a low impedance path to earth ground. During a transient event the transient event suppression module provides a low impedance path to the earth ground to protect the PHY device from the transient event. A power circuit that delivers power from a second ground level to the PHY device is coupled to the first ground level. The first ground level and the second ground level are coupled to provide a low impedance path during normal operation and high impedance during transient events.

Abstract: An entangled quantum generator generates a signal including a plurality of entangled quanta. The wavelength of the signal is the sum of the wavelengths of the entangled quanta. A signal processor determines a characteristic of the target based on information derived from at least some of the entangled quanta in the return signal. The frequency of the signal is selected to propagate the signal through a medium and the frequencies of the entangled quanta are selected to provide sufficient data in the return signal to resolve the characteristic of the target.

Abstract: A system for distributing a substance includes a chamber configured to accommodate a mold surface and an inlet port in the chamber. The substance is introduced into the chamber through the inlet port. Flexible tubing is coupled between the inlet port and a reservoir containing the substance. A pump is used to compress a portion of the flexible tubing to move the substance through the tubing and inject the substance into the chamber.

Abstract: A landing gear assembly comprises a landing gear strut assembly further comprising a landing gear strut having a longitudinal axis and extending from an inboard end to an outboard end capable of attaching to a wheel, and a landing gear housing. The landing gear housing has a longitudinal axis coincident with the landing gear strut longitudinal axis and having an interior chamber capable of accepting a portion of the landing gear strut. The landing gear housing is capable of pivotably coupling to an aircraft. The landing gear assembly further comprises a retraction linkage having an inboard end capable of coupling to the aircraft and an outboard end coupled to the landing gear housing. The retraction linkage is moveable to retract the landing gear strut assembly into an aircraft landing gear compartment about the landing gear housing pivotable aircraft coupling.

Abstract: A system for determining an acoustic signature of a device is disclosed that includes a computer processor operable to determine strength and location of shock wave sound signals based on propagation of sound waves generated by the device. The strength and location of the shock wave signals are modified due to dissipation and dispersion effects in a non-uniform atmosphere. The shock wave signals are separated into even and odd numbered signals, and oscillations in the signals are smoothed by averaging even and odd numbered shock signals.

Abstract: A method, system, apparatus, and computer-readable medium to determine whether a device having access to a network is wireless. A method for determining whether a device is wireless includes sending a specially-constructed packet to the device via a network. The packet is constructed so that the source address for the packet is a physical address on the network for the device. If the device does not send a response to the packet, a determination is made that the device is wireless. If the device sends a response to the packet, a determination is made that the device is wired. In one embodiment of the invention, the physical address for the device is a Media Access Control (MAC) address. The initial packet may, for example, request the physical address for the device and may be sent in response to detecting a communication to or from the suspect device.

Abstract: Embodiments disclosed herein provide a network device comprises a transformer with a primary winding and a secondary winding. The primary winding is coupled to receive input signals from a network connector and supply data signals to a physical layer (PHY) module. An inductance boost circuit is coupled to the secondary winding and operable to increase the impedance of the primary winding. In other embodiments, a network device comprises an autotransformer coupled to receive input signals from a network connector and supply data signals to a physical layer (PHY) module. An electronic load coupled in parallel between the autotransformer and the PHY layer module.

Abstract: An aircraft capable of supersonic flight comprises a body portion including a fuselage, a wing, and an engine nacelle mounted below the wing. The aircraft may also include a high-mounted aft, tail. The area/lift distribution of the body portion is tailored to reduce sonic boom disturbance. The body portion further includes a blunt nose and a gull dihedral wing configuration that further reduces sonic boom disturbance and eases constraints on area/lift distribution tailoring. The gull dihedral wing or tail is configured to carry lifting force to its trailing edge to create an expansion at the aft end of the aircraft that reduces aft sonic boom ground shock strength. The volume of the mid-portion of the fuselage can be reduced above the wing to create a sloped surface that generates an expansion fan over the wings.

Abstract: One leg of a connector connector is embedded inside a slot cut in a base panel structure. Adjacent laterally extensive legs overlap and are bonded to the face sheet of the base panel structure. Structural members can be attached to the remaining leg(s) of the connector. The legs bonded to the base panel structure enable loads to be transferred to or from the panel structure, and enable peel-off loads to be distributed through the base panel structure.

Abstract: A plasma propulsion system for aerospace and other applications is disclosed in which an ionized fluid is accelerated through the system by an electric field. The electrons separated from the ionized fluid are accelerated in a direction opposite the ionized flow. A magnetic field decelerates the electrons. The decelerated electrons are collected, conducted downstream, and re-inserted into the ionized flow.

Abstract: A system and method for tracking communication for determining device states. Communication between devices is observed and a respective state of at least one device is inferred. The inference is formed without directly communicating with the device. Various states of the devices include unknown, used, unfulfilled, virtual, omitted, and automatic. The respective state of a device is unknown when the observation shows that the device fails to respond to communication. The respective state of the device is unfulfilled when an ARP request comprising a destination address for the device is observed, and the device does not respond to the ARP request prior to expiration of a time limit. The respective state of a device is determined to be virtual when the observation shows that the device received a packet when its respective state was unfulfilled, and the device did not send a reply to the packet within a time limit.

Abstract: The present invention provides a method to at least partially power an Ethernet device from a plurality of balanced network power signals received through a network connection. This involves attaching the network device to the network, wherein network signals are received and contain both power signals and/or data signals. These network signals may be passed through surge protection and power-conditioning circuitry wherein the output of these circuits may be provided to a power absorbing circuit. This power absorbing circuit may separate the communication signal and power signal from the network signal. The communication signal may be passed to a network physical layer while the power signal may be passed to a power distribution module. Additionally, because certain embodiments may provide multiple pairs of network power signals to the power absorbing circuit, the current or power associated with each power signal must be sensed and balanced. This may be done with an active control circuit.

Abstract: In a network device, a power potential rectifier is adapted to conductively couple a network connector to an integrated circuit that rectifies and passes a power signal and data signal received from the network connector. The power potential rectifier regulates a received power and/or data signal to ensure proper signal polarity is applied to the integrated circuit.

Abstract: A sensor comprises a transducer substrate formed of a photo-acoustically sensitive material and having a receiving surface and an absorptive layer coupled to the transducer substrate receiving surface that detects broadband electromagnetic (EM) radiation.

Abstract: An automated dispensing assembly includes a base, and a shuttle mounted in the base and movable under automated control between a loading position and a dispensing position. The shuttle includes a cavity configured to carry an object, such as cover. The depth of the cavity in the shuttle is approximately the same (or less) as the thickness of one of the objects. A storage module is mounted proximate the shuttle. The storage module is configured to store a plurality of objects and includes an opening exposing the next object to be dispensed. The cavity is positioned adjacent the opening in the storage module in the loading position and an edge of the cavity separates the object to be dispensed from the other objects in the storage module as the shuttle moves to the dispensing position.

Abstract: A system, method, and computer-readable medium for deterring network incursion by formulating appropriate responses to attacks. Once an attack is detected, the system may respond in such a manner as to imitate a network device. The system may respond in a manner that provides a high cost to pursue further communication with the system. For example, the system may respond to TCP syn requests and window probes with messages indicating small packet and window sizes. As such, attempts to send packets to the system have a high network and processing cost. An attacking computer running multiple threads may ultimately slow or be disabled as a result of the receiving the responses and attempting to continue to communicate with the system.