Abstract: A floatable land vehicle is provided that includes a base body having at least one buoyancy body that is detachably fastened to the base body, the buoyancy body containing an at least partially filled tank.

Abstract: A transportable foldable bridge is provided that has a folded transport state and an unfolded installation state. The bridge also includes a first ramp element, a second ramp element, and an intermediate element with two opposing ends; a first end of the intermediate element is connected to the first ramp element and the other end of the intermediate element is connected to the second ramp element; and between the first ramp element and the intermediate element, an articulating connection is provided. In the transport state, the first ramp element and the intermediate element are folded and the second ramp element constitutes an extension of the intermediate element.

Abstract: An apparatus and system for controlling the trajectory of a projectile having two rotationally decoupled sections, wherein the first section is rotationally decoupled from the second section. The first section of the projectile contains a navigation system. The first section also contains an actuator by which aero-control surfaces on the second section are actuated. The second section may have external aero-spin surfaces which provide a torque counter to the rotation of the base projectile. The apparatus and system also includes embodiments having applications for nose sections of projectiles.

Abstract: A method for key generation at a terminal device supporting at least two communication modes of operation is described. The method comprises, at a terminal device comprising a key derivation function: receiving at least one input parameter from a first wireless communication system; generating a first key in the key derivation function using the received at least one input parameter and at least one first locally stored input parameter in order to transmit in a first mode of operation on the first wireless communication system; and generating a second key in the key derivation function solely using at least one second locally stored input parameter in order to transmit in a second mode of operation on a second wireless communication system; wherein the at least one second locally stored input parameter is arranged to enable the second key to be used as the first key.

Abstract: A phase shift device includes an input quadrature junction for receiving an input EM signal and extracting a first electromagnetic (EM) signal, a second EM signal, a third EM signal, and a fourth EM signal from the input EM signal. Four waveguide arms are operatively connected to the input quadrature junction for respectively conveying the first, second, third, and fourth EM signals therethrough. At least two of the waveguide arms shift the phase of EM signal conveyed therethrough such that two of the first, second, third, and fourth EM signals are phase shifted with respect to the other two of the first, second, third, and fourth EM signals. An output quadrature junction is operatively connected to the waveguide arms for combining the first, second, third, and fourth EM signals. Thus, polarization adjustment may be achieved through rotation of the phase shift device.

Abstract: A marking projectile configured to be fired through the barrel of a firearm having rifling formed therein is provided. The marking projectile includes a polymeric base portion configured to engage the rifling of the barrel and a polymeric front shell portion coupled to the base portion. The polymeric front shell portion has a cavity formed therein for housing a marking compound and a structure configured to deform on impact and thereby release the marking compound. The marking projectile includes a metallic annular sealing component (e.g., a crimped metal ring) configured to seal the polymeric front shell portion to the polymeric base portion.

Abstract: A method of manufacturing a multi-layered propellant grain is provided. The method of the present disclosure simplifies the setup necessary to produce multi-layered propellants by using industrial equipment that is more energy and space efficient than the machinery that is conventionally employed for such processes. The method comprises providing a first propellant formulation; providing a die configured to provide a structure having an outer shell and a hollow interior when material is extruded therethrough; extruding the first propellant formulation through said die, to produce a first propellant layer having an outer shell defining a hollow interior in the form channel having open ends; providing a second propellant formulation, said second propellant formulation being of low viscosity; injecting said second propellant formulation into said channel defined by said first propellant layer to form a second propellant layer disposed in said channel; and hardening said second propellant layer.

Abstract: Systems and methods are provided for advanced persistent threat detection on a network. The method includes capturing data packets from a network and performing layered session decoding on the captured packets. Metadata is extracted from the decoded packets and is stored for analysis. Analysis of the metadata is used to detect advanced persistent threats on the network. The system includes a network and a processor coupled to the network. The processor is configured to capture data packets from the network and perform layered session decoding on the captured packets. Metadata is extracted by the processor and stored in a memory coupled to the processor. The metadata may then be analyzed to detect advanced persistent threats on the network.

Abstract: A gun sight for use with a weapon configured for super elevation is disclosed herein. The gun sight includes, but is not limited to, an imaging system that is configured for rotation. The gun sight further includes a drive mechanism that associated with the imaging system and that is configured to rotate the imaging system. The gun sight further includes a gyroscope associated with one of the weapon and the imaging system. The gun sight still further includes a processor that is communicatively coupled with the drive mechanism and the gyroscope. The processor is configured to control the drive mechanism to rotate the imaging system in a manner that causes the imaging system to maintain an initial angular orientation based on information provided by the gyroscope when the weapon is superelevated.

Abstract: A method for increasing coverage in a wireless communication system is described. The method comprises, at the network element: transmitting a first portion of subframes comprising a number of resource blocks to a first wireless communication unit in a first mode of operation, wherein the number of resource blocks are transmitted at a first power level per resource block; and transmitting, a second portion of subframes to a second wireless communication unit in a second mode of operation at a second power level, wherein the second portion of subframes comprise a lower number of resource blocks than the first portion of subframes and the lower number of resource blocks is transmitted at a second power level per resource block that is higher than the first power level per resource block.

Abstract: A weapon system is provided. The weapon system includes a receiver and an operating group. The operating group includes a barrel extension at least partially housed within the receiver and arranged to axially translate relative to the receiver; an operating rod (op-rod) assembly arranged to axially translate within the barrel extension; and a bolt assembly arranged to axially translate within the barrel extension. The system further includes a gas accelerator coupled to the barrel and the op-rod assembly; a buffer assembly including a self-centering spring and a hydraulic piston assembly having a first end coupled to the receiver and a second end coupled to the barrel extension; and a feeder coupled to the receiver and configured to provide the round to the operating group.

Abstract: Systems and methods are provided to automatically determine a position of a reticle of a rifle scope or other telescope that provides a visual image to an eye of a viewer. A near-infrared or other illuminating light is generated and applied to illuminate the reticle of the telescope. The illuminated image of the reticle is optically transmitted to a camera or other detector that captures an image of the reticle. Processing electronics then automatically determine the position of the reticle based upon the position of the illuminated image of the reticle within the captured image. Appropriate feedback about the determined position of the reticle or any other information may be displayed in the visual image provided by the telescope.

Abstract: A method for a low bandwidth wireless communication unit to re-synchronize to a wireless communication system employing one or more virtual carrier(s) after the wireless communication unit has lost synchronization is described. The method comprises, at the wireless communication unit: entering a sleep mode of operation following communication on a first virtual carrier; waking up from the sleep mode of operation on a default virtual carrier that is not the first virtual carrier; and acquiring synchronization information using synchronization signals that occupy subcarrier resources that overlap with the subcarrier resources occupied by the default virtual carrier to re-synchronize with the wireless communication system.

Abstract: A network element for controlling a usage of at least one resource is described. The network element comprises: a transmitter for transmitting a signal identifying at least one uplink resource to at least one wireless communication unit; a signal processor operably coupled to the transmitter for generating the signal; and a receiver for receiving a transmission from the at least one wireless communication unit on the identified at least one uplink resource. The signal processor is arranged to allocate the uplink resource for the at least one wireless communication unit in a first portion of a first sub-frame on a first frequency and a first portion of a second sub-frame on a second frequency wherein a time gap is allocated between an end of the first portion of the first sub-frame and a beginning of the first portion of a second sub-frame.

Abstract: Methods and apparatus for interleaving priorities of a plurality of virtual processors are disclosed. A hypervisor assigns a base priority to each virtual processor and schedules one or more virtual processors to execute on one or more physical processors based on the current priority associated with each virtual processor. When the hypervisor receives an indication from one of the virtual processors that its current priority may be temporarily reduced, the hypervisor lowers the current priority of that virtual processor. The hypervisor then schedules another virtual processor to execute on a physical processor instead of the virtual processor with the temporarily reduced priority. When the hypervisor receives an interrupt for the virtual processor with the lowered priority, the hypervisor raises the priority of that virtual processor and schedules the virtual processor with the restored priority to execute on a physical processor so that processor can handle the interrupt.

Abstract: A gun sight for use with a weapon configured for super elevation is disclosed herein. The gun sight includes, but is not limited to, an imaging system that is configured for rotation. The gun sight further includes a drive mechanism that associated with the imaging system and that is configured to rotate the imaging system. The gun sight further includes an inclinometer associated with one of the weapon and the imaging system. The gun sight still further includes a processor that is communicatively coupled with the drive mechanism and the inclinometer. The processor is configured to control the drive mechanism to rotate the imaging system in a manner that causes the imaging system to maintain an initial angular orientation based on information provided by the inclinometer when the weapon is superelevated.

Abstract: A wireless communications system supporting user plane data comprises: a first network having a first packet data network gateway (P-GW); a second network having a second P-GW operably coupled to the first network via a backhaul link; a serving gateway (S-GW) a base station; and a terminal device, wherein a single packet data network connection is created for the terminal device that traverses through the first P-GW, second P-GW, S-GW and base station.

Abstract: A packet data network gateway, P-GW, is located in a second network for supporting user plane data to terminal devices in a wireless communications system that additionally comprises a first network having a first packet data network gateway, P-GW operably couplable to the P-GW. The P-GW comprises a processor arranged to: check a destination address of received packets from the first P-GW to determine whether the received packets are destined for any of the terminal devices, and in response thereto: extract one or more properties of said received packets if they are destined for any of the terminal devices served with user plane data; or discard said received packets if they are not destined for the terminal device(s).

Abstract: A packet data network gateway, P-GW, is located in a second network for supporting control plane data in a wireless communications system that additionally comprises a first network having a first packet data network gateway, P-GW, operably couplable to the P-GW and a serving gateway, S-GW. The P-GW comprises a processor arranged to determine an operational status of at least one of: a backhaul link, first P-GW. In response to the processor determining that both of the backhaul link and the first P-GW are available, the processor is arranged to perform at least one of: trigger deferred signalling between the first network and at least one of a mobility management entity, MME, the S-GW; trigger user plane handling, monitor and build terminal device context information for a plurality of terminal devices being served with user plane data by the backhaul link of the second network.

Abstract: A wireless communications system supports control plane data and comprises: a first mobility management entity, MME; at least one second mobility management entity, MME; and a terminal device; wherein both the first MME and the at least one second MME are allocated to interoperate to support control plane data for the terminal device.