A launcher for launching a flying vehicle, such as a projectile or missile, includes a cutter for cutting a line, such as an umbilical line, that is coupled to the vehicle prior to launch. An example of a line is a tube for providing cooling for onboard components of the vehicle, such as a seeker of the vehicle. The cutter may be part of a mount of the launcher for mounting the line and other components, such as a compressor. The cutter may be configured so that as the vehicle translates relative to the launcher during the initiation of launch, the line moves against the cutter, severing the line. The cutter may retract after severing the line, for example being pulled away from the vehicle (and into the mount) by a spring mechanism.
Systems, devices, methods, and computer-readable media for horizon-based navigation. A method can include receiving image data corresponding to a geographical region in a field of view of an imaging unit and in which the device is situated, based on the received image data, generating, by the processing unit, an image horizon corresponding to a horizon of the geographical region and from a perspective of the imaging unit, projecting three-dimensional (3D) points of a 3D point set of the geographical region to an image space of the received image data resulting in a synthetic image, generating, by the processing unit, a synthetic image horizon of the synthetic image, and responsive to determining the image horizon sufficiently correlates with the synthetic image horizon, providing a location corresponding to a perspective of the synthetic image as a location of the processing unit.
3.
MECHANISM FOR ATTACHMENT AND DETACHMENT OF AN AIRFOIL TO AN AIRFRAME
A mechanism for attachment and detachment of a fixed or controllable airfoil to an airframe includes a base adapted for attachment to a root of the airfoil and a slot beam adapted for attachment along the airframe (e.g., parallel to the longitudinal X-axis of the airframe). The base includes a plurality of pins spaced along and held between parallel rails. The slot beam includes a plurality of slots arranged along the beam. Each slot has a lead-in portion to receive one of the plurality of pins and a longitudinally-oriented tapered portion (e.g., parallel to the longitudinal X-axis with a taper between 1 and 5 degrees) to engage the pin so that the base is seated in the slot beam to position the airfoil against the airframe in an XY plane. A pre-load mechanism is configured to apply a force along the X-axis to press the plurality of pins into the respective tapered portions to fix the base relative to the slot beam in six degrees of freedom (6 DOF).
A spectrometer is configured to form a spectrally resolved image of electromagnetic radiation from an electromagnetic radiation source. The spectrometer can include an optical guide device configured to guide electromagnetic radiation along an optical path. The optical guide device can include a first prism positioned in the optical path. The optical guide device can further include a focusing optic. The first prism can include at least one freeform prism surface that comprises at least some degree of cylindrical curvature having freeform polynomial terms formed thereon, which surface can be a substantially cylindrical, a substantially acylindrical, or a substantially flat surface having freeform polynomial terms formed thereon.
A water-based acrylic latex paint has a dispersant-over-pigment (DOP) ratio between 0.5 and 1.5 to form a coating in which the pigment has a low concentration and is highly dispersed throughout to absorb in the visible band to produce a color (e.g., black) and is transmissive in the NIR and SWIR bands. The variables that determine absorption in the visible band and transmission in the NIR and SWIR bands include the DOP ratio, a pigment weight percentage between 1-2% in the paint and a coating thickness between 2 and 4 mil. To control the viscosity, the dispersing agent is suitably an acrylate-based block co-polymer, of molecular weight above 2,000 grams per mole, that includes an amine-functional block to anchor onto the pigment.
An apparatus includes a thermal actuator switch (102, 104, 202, 204, 302, 400, 500) configured to control a transfer of thermal energy through the thermal actuator switch. The thermal actuator switch includes first and second plates (402-404, 502-504) and a piston (408, 508) movable laterally between the first and second plates. The thermal actuator switch also includes a phase change material (418, 518) configured to (i) expand to move a surface of the piston into a first position and (ii) contract to allow the surface of the piston to move into a second position. The surface of the piston thermally contacts the first plate and increases thermal energy transfer between the first and second plates when in one of the first and second positions. The surface of the piston is spaced apart from the first plate and decreases thermal energy transfer between the first and second plates when in another of the first and second positions.
A test system comprising an array of radiating antenna elements, each antenna element in the array operatively connected to a beam former; and at least one signal generator operatively connected to the beam former; wherein the test system is configured to generate simultaneous plane waves in the near-field region.
A cover for an effector, such as a projectile, missile, or gun-launched effector, includes two parts that are translatable relative to one another, such that the cover separates in stages as the effector launches. The cover includes an outer cover portion that is made up of multiple outer cover segments that together define a central opening through which part of an inner cover portion extends. In a launch of the effector, the effector first makes contact with the inner cover portion. This pushes the inner cover portion forward, breaking the attachment with the outer cover portion, and allowing the inner cover portion to translated forward relative to the outer cover portion. As the inner cover portion translates forward relative to the outer cover portion, the inner cover portion eventually makes contact with the outer cover portion, with both being pushed forward, and separating from the launcher.
A transistor and method of fabricating the same comprising a channel layer; an epitaxial barrier layer on the channel layer; an epitaxial cap layer on the epitaxial barrier layer; a dielectric layer on the epitaxial cap layer having an opening through to the epitaxial barrier layer; a gate (301) having angled sidewalls in the opening of the dielectric layer; a mini field plate (303) having angled sidewalls on the gate; and a gate top (305) on the mini field plate, wherein the gate, the mini field plate, and the gate top form a "T" shape.
H01L 29/423 - Electrodes characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
H01L 21/285 - Deposition of conductive or insulating materials for electrodes from a gas or vapour, e.g. condensation
H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT
H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
10.
ACTIVE CLAMP DC/DC CONVERTER INCLUDING CURRENT SENSE PEAK CONTROL MODE CONTROL
An isolated DC/DC converter includes a primary stage, a transformer circuit, a secondary stage, an active clamp, a first current sense node, and a second current sense node. The primary stage includes a primary switching inverter configured to invert the source DC voltage into a high-frequency alternating current (AC) voltage. The transformer circuit adjusts an AC voltage level of the high-frequency AC voltage and outputs an adjusted AC voltage. The secondary stage includes a secondary switching converter to convert the adjusted AC voltage into a secondary voltage, and the active clamp is configured to clamp the secondary voltage to provide an output DC voltage. The first current sense node is included in the primary stage conducts a source current having a first current level, and the second current sense node is included in the secondary stage and conducts a clamp current having a second current level.
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
H02M 3/00 - Conversion of dc power input into dc power output
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
A linear actuation system includes a pin pivotably coupled to an output rod of a linear motion actuator and a rotatable output shaft that includes a bushing therein. The pin can be configured to slide in and out of the bushing in response to movement of the linear motion actuator. The linear motion actuator and the output shaft can be arranged such that travel of the pin in the bushing causes rotation of the output shaft
F16H 25/22 - Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
F42B 10/64 - Steering by movement of flight surfaces of fins
B64C 13/28 - Transmitting means without power amplification or where power amplification is irrelevant mechanical
F16H 21/44 - Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for conveying or interconverting oscillating or reciprocating motions
12.
TWO-PHASE LIQUID-COOLED ELECTRICAL POWER APPARATUS
A two-phased liquid-cooled electrical power apparatus includes a plurality of cooling circuits that recirculate and transition respective engineered fluids between liquid and vapor states around closed-loop fluid paths to cool a plurality of devices. A portion of each fluid path is either integrated with or in thermal contact with its device. The engineered fluids are evaporated within the respective portions of the fluid paths to hold the operating temperatures at or near the respective and different phase transition temperatures. The cooling circuits may be used to maintain different operating temperatures of hollow primary and secondary winding coils in a power transformer, of parallel connect hollow winding excitation coils and a common magnetic core in an electrical reactor, of power semiconductor devices mounted on heat sink(s) in which the fluid paths are embedded or power semiconductor devices in which the respective fluid paths pass through the devices.
H01F 27/18 - Liquid cooling by evaporating liquids
H01L 23/427 - Cooling by change of state, e.g. use of heat pipes
H01L 23/473 - Arrangements for cooling, heating, ventilating or temperature compensation involving the transfer of heat by flowing fluids by flowing liquids
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
H02K 9/20 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
13.
MICROWAVE CAVITY RESONATOR AND FIXED-GEOMETRY PROBE
A fixed-geometry probe for exchanging microwave energy with a cavity resonator is easy to manufacture, reliable and readily adjustable external to the cavity to select a coupling coefficient. The probe includes a transmission line that enters, turns and exits the cavity resonator. A first end of the transmission line lies outside the cavity resonator for connection to a microwave circuit to exchange microwave energy. A portion of the transmission line's outer conductor(s) is removed within the cavity resonator to form a fixed-geometry radiating element to exchange microwave energy with the cavity resonator in accordance with the coupling coefficient. The line's outer conductor is connected to the cavity resonator on either side of the radiating element. A second end of the transmission line is terminated outside the cavity resonator with a terminating impedance creating a mismatch with the line's characteristic impedance to create a reflective stub. The coupling coefficient is controlled by the length of the reflective stub and terminating impedance.
A method includes obtaining (402) thermal energy from a structure (112) to be cooled, where the structure includes micro-channels (208). The method also includes providing (402) the thermal energy to a water-based polymer network (206), where the water-based polymer network includes a gel formed using a polymer and water. The method further includes generating (404) one or more gases (210) by heating the water-based polymer network, where generating the one or more gases includes releasing the water in the water-based polymer network to produce steam. In addition, the method includes passing (408) the one or more gases through the micro-channels to remove at least some of the thermal energy from the structure.
Described herein is an apparatus and a method for a cluster connector. The cluster connector comprises at least three coaxial-cable core conductors formed in an additive manufacturing process; a dielectric around each of the three coaxial-cable core conductors, formed in the additive manufacturing process; a metallic shield around each dielectric, formed in the additive manufacturing process; at least one stub on each metallic shield, formed in the additive manufacturing process; and a common ground connection connected to each metallic shield, formed in the additive manufacturing process.
A ring assembly of an underwater acoustic sensor (hydrophone) system includes a ring that has brackets that mount the hydrophones evenly circumferentially spaced apart. The ring assembly may have three hydrophones mounted on the ring, with the hydrophones maintained in a triplet configuration. Multiple ring assemblies may be stacked in a nested array, with the hydrophones of adjacent stacked ring assemblies offset circumferentially, with each of the hydrophones overlapping multiple of the stacked rings, with the stacking accomplished such that the ring assemblies are in a helical array. Rings with non-acoustic sensors may be stacked with (and interspersed within) the stacked rings. The stacked array of ring assemblies (and non-acoustic sensor assemblies) may be stored in a canister that facilitates uniform and controlled descent and deployment of the assemblies, with ring assemblies and non-acoustic assemblies paying out sequentially from a float at the top of the array.
G01V 1/20 - Arrangements of receiving elements, e.g. geophone pattern
G01V 1/38 - Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
G10K 11/00 - Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Systems and methods are provided for point cloud compression. An exemplary method includes: receiving point cloud data; quantizing the point cloud data to remove noise to produce quantized point cloud data; generating, using the quantized point cloud data, a plurality of multi-level tiles; performing reordering within the multi-level tiles to optimize a compression rate producing a plurality of reordered multi-level tiles; bit packing the reordered multi-level tiles minimizing bits required to store per tile header data producing a bit packed multi-level tile data; and performing additional compression on the bit-packed multi-level tile data using a first compression algorithm.
H03M 7/30 - Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
H04N 19/90 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups , e.g. fractals
A moving magnet voice coil actuator includes a bobbin (138, 140) that defines a non-straight opening (134, 136) for receiving a magnetic piece (128, 130). The bobbin may be additively manufactured to a desired shape. The moving magnetic piece may be a curved piece that has a shape that corresponds to the shape of the opening. The magnetic piece may include a stack of magnets, which may be tapered, to allow limited tilting movement of the magnetic piece within the opening. The actuator may be part of a pair of actuators (114, 116) for tilting an object (112), for example a mirror, about a pivot point (118). The pair of actuators may be part of a system that includes an additional pair of actuators configured to tilt the object in a second direction that is different from the first direction.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
H01F 7/08 - Electromagnets; Actuators including electromagnets with armatures
H01F 7/122 - Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnet
A composition for making a filler including a plurality of ceramic particles, an oxirane monomer in liquid form, an ultraviolet initiator that absorbs ultraviolet, and a thermal initiator.
C08G 59/68 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the catalysts used
A vibration isolator includes a series of hard bushings (12,14,16,18;112,114,116,118) that press against each other and slide, under the constraint of friction from the engagement of the bushings. A fastener (38;138), such as a bolt, passes through the engaged bushings, and one or more springs (48;148,149) provide a spring force that maintains the engagement of the bushings. The bushings may include top and bottom bushings (32,34;132,134,) having chamfered surfaces (72,74), which engage corresponding upper and lower sloped (62,64) surface on a middle friction bushing (36,136) which can slide relative to the top and bottom bushings. The isolator may be part of a vibration isolation system (10,110) that includes multiple isolators (12,14,16,18;112,114,116,118) to provide isolation for an isolated object. The bushings may be made of metal or another suitable hard material. The isolator may be suitable in particular for vibration isolation in situations where vibrations are of severe, but short duration.
F16F 7/08 - Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
F16F 15/02 - Suppression of vibrations of non-rotating, e.g. reciprocating, systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating system
21.
CLOUD DETECTION FROM MULTISPECTRAL SATELLITE IMAGERY
Systems and methods are provided for producing a mask for cloud detection. An exemplary method includes: receiving a multi-band image; collecting a first set of band images and a second set of band images separated by a time lag; forming a first pseudo-pan image and a second pseudo-pan image from the first set of band images and the second set of band images; computing a pixel value difference between each of the corresponding pixels in the first pseudo-pan image and the second pseudo-pan image; extracting from the corresponding pixels a set of candidate cloud pixels; determine whether the candidate cloud pixels have sufficient pixels to define a cloud; in response to determining the candidate cloud pixels have sufficient pixels, performing a morphological clean-up of the candidate cloud pixels to produce a cleaned image of the cloud; and producing, using the cleaned image of the cloud, a cloud mask.
G06V 10/34 - Smoothing or thinning of the pattern; Morphological operations; Skeletonisation
G06V 10/26 - Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
G06V 10/58 - Extraction of image or video features relating to hyperspectral data
G06V 10/74 - Image or video pattern matching; Proximity measures in feature spaces
An apparatus includes a photonic integrated circuit (402) having an optical phased array (502), where the optical phased array includes multiple unit cells (504). Each unit cell includes at least one antenna element (702a-702b, 802a-802c, 902a-902a', 902b-902b', 902c-902c', 1002, 1102) configured to transmit or receive multiple optical signals having spectrally-distinct wavelengths or wavelength ranges. Each unit cell also includes at least one signal pathway (704a- 704b, 804a-804c, 904a-904c, 1004a- 1004b, 1104) configured to transport the optical signals to or from the at least one antenna element. Each unit cell further includes a phase modulator (706, 806, 906, 1006, 1106) configured to modify phases of the optical signals being transported through the at least one signal pathway. Each unit cell is configured to provide correlated phase shifts to the optical signals having the spectrally-distinct wavelengths or wavelength ranges.
G02F 1/29 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
G02F 1/01 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
G02B 6/34 - Optical coupling means utilising prism or grating
23.
BACKSIDE METALLIZATION OF FLIP-CHIP SEMICONDUCTOR DEVICES
An electronic device is provided having a bulk Si layer and an active region positioned on the bulk Si layer. The active region includes at least one semiconductor component defined by a device layout or functions of the electronic device. An opaque structure is positioned on the bulk Si layer or within the bulk Si layer. The opaque structure is configured to prevent visual or IR imaging of the electronic device to determine the device layout or functions.
A system for restraining one or more control surfaces of a tactical flight vehicle includes a retaining frame secured at an aft end of the tactical flight vehicle and a cover plate releasably coupled to the retaining frame with a resilient lock ring. The resilient lock ring is disposed between the retaining frame and the cover plate and is deformable between a locking configuration and an unlocking configuration. A control surface restraining ring is releasably coupled to the cover plate and has control surface restraints configured to engage respective control surfaces. The resilient lock ring is configured to deform from the locking configuration to the unlocking configuration upon a launch of the tactical flight vehicle such that the cover plate becomes uncoupled from the retaining frame and may be jettisoned from the tactical flight vehicle after the launch.
An assembly comprises, in operable communication, a processor, a communications system, a sensory subsystem, a health management system, and a security system, where the assembly is configured to interface between a simulation system and a computer system that controls the simulation system. The communications system controls communications between the simulation system and the computer system. The sensory subsystem provides commands to the simulation system to enable it to provide a simulated user experience to the user that engages one or more senses of the user with a simulation that the respective one or more senses can detect. The health management system monitors health event information relating to one or more environmental characteristics in which the simulation system is operating. The security system monitors security events associated with the assembly, the security events related to at least one of physical and logical intrusion into the assembly.
A drive mechanism for actuating a control surface of a vehicle that moves through a fluid medium. The mechanism directly translates the rotational motion provided by an input drive to a control surface that is used to direct the vehicle. The mechanism provides both weight and space savings as well as limits, if not eliminates, backlash. The angled drive mechanism may be particularly suited for use in applications such as UAV/UUV, munitions, and other relatively small platforms.
B64C 13/30 - Transmitting means without power amplification or where power amplification is irrelevant mechanical using cable, chain, or rod mechanisms
B64C 13/50 - Transmitting means with power amplification using electrical energy
27.
DISTRIBUTED DATA AND DIGITAL DELIVERY PLATFORM FOR INTEGRATED SUSTAINMENT AND MAINTENANCE
A network includes a first node. The first node includes a data import service container, a system status condition database, and a distribution service container. The data import service container includes a first open interface and is configured to receive and organize data from the first open interface. The system status condition database is connected to the data import service container and includes memory for storing the data received and organized by the data import service container. The distribution service container is connected to the system status condition database and includes a second open interface for connecting the first node to a distribution service container of a second node of the network. The distribution service container of the first node is configured to synchronize the system status condition database of the first node with a system status condition database of the second node.
G06F 16/27 - Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
28.
IDENTIFICATION OF SIMULATION-DRIVEN OPTIMIZED INDICATION AND WARNING (I&W) CUTOFFS FOR SITUATION-SPECIFIC COURSES OF ACTION
A method includes identifying (902) one or more characteristics (116) associated with a current operational environment. The method also includes identifying (904) one or more simulated scenarios (304, 402) having one or more characteristics (310) that are similar to or match the one or more characteristics associated with the current operational environment. The method further includes identifying (906) one or more cutoff values (312, 412) associated with the one or more simulated scenarios and one or more recommended courses of action (404) associated with the one or more simulated scenarios. The method also includes using (908) the one or more cutoff values to generate at least one notification, where the at least one notification is associated with the current operational environment. In addition, the method includes presenting (910) the one or more recommended courses of action to at least one user (504) or a decision engine (118) for initiation within the current operational environment.
Described herein is an apparatus and a method for a low-profile, circularly polarized antenna. The antenna comprises a first substrate having a first side and a second side; an antenna element on the first side of the first substrate; a first conductor on the second side of the first substrate proximity coupled to the antenna element; a second conductor on the second side of the first substrate proximity coupled to the antenna element and ±90 degrees out of phase with the first conductor; a second substrate under the first substrate having a least one air gap therein under the antenna element; a third substrate under the second substrate having a first side and a second side; and an electrical ground plane on the second side of the third substrate.
An apparatus includes a photonic integrated circuit having multiple cells (400a-400d). Each cell includes first and second antenna elements (206, 208), where the first antenna element (206) is configured to receive a portion of optical energy and the second antenna element (208) is configured to transmit the portion of the optical energy. Each cell also includes a signal pathway (210) configured to transport the portion of the optical energy between the first and second antenna elements. Each cell further includes a phase modulator (212) configured to adjust a phase of the portion of the optical energy transported over the signal pathway. The apparatus also includes multiple wavefront sensors (216, 218, 220, 216', 218', 220a-220r) configured to measure wavefront errors in the portions of the optical energy. The apparatus further includes multiple phase controllers (224) configured to adjust operation of the phase modulators in order to at least partially reduce the wavefront errors.
A flow deflector for an aerial vehicle system has a flow deflector body, a clip arranged in an interior of the flow deflector body, and a spring within the clip. The flow deflector body includes a first portion at a forward end shaped to engage a surface of an aerial vehicle body and a second portion at an aft end shaped to engage a surface of a booster engine. The flow deflector body can include a plurality of body segments arranged to form the flow deflector body. The clip may be configured to fit around and engage a portion of an aft flange of the aerial vehicle body. The spring can be preloaded and arranged to press on the aft flange when the clip engages the portion of the aft flange.
A winding assembly, such as a transformer or an inductor, includes a spring clip and a retaining clip for mechanically coupling the winding assembly to a printed circuit board (PCB) or a printed wiring board (PWB). The clips provide structural rigidity to the winding assembly, allowing the winding assembly to remain functional during high shock events. Further, the clips compress a thermal pad positioned beneath the winding assembly, providing sufficient heat transfer surface area for transferring heat away from the winding assembly.
H01F 27/06 - Mounting, supporting, or suspending transformers, reactors, or choke coils
H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
An apparatus includes a photonic integrated circuit (302) having an optical phased array (402), where the optical phased array includes multiple unit cells (404). Each unit cell includes (i) an antenna element (452) configured to receive optical signals and (ii) a modulator (456) configured to phase-shift the optical signals received by the antenna element. Multiple subgroups of the unit cells in the optical phased array are configured to generate multiple combined optical signals based on the received optical signals. The apparatus also includes at least one of: (i) amplitude adjusters (602, 618) configured to modify amplitudes of the combined optical signals in order to compensate for amplitude modulations across a receive aperture of the optical phased array and (ii) phase modulators (604, 616) configured to modify phases of the combined optical signals in order to compensate for phase modulations across the receive aperture of the optical phased array.
A sabot including a first casing petal having at least one coupling feature and at least one disengagement feature; a second casing petal having at least one coupling feature and at least one disengagement feature; and a cap insertable within a forward receiver formed by coupling the first casing petal with the second casing petal, wherein the first casing petal and the second casing petal and the cap are configured to cooperatively attach to a forward assembly of a missile and cooperatively detach from the forward assembly of the missile responsive to a missile launch.
A shock isolator includes slots in inner and outer parts that define flexures between the parts. The slots may include inner slots and outer slots that are offset from each other around a perimeter of the inner part. The shock isolator also includes stops that provide a mechanical limit on the movement of the flexures. The stops may be posts that extend from one of the parts into holes in the other of the parts. In another embodiment that stops may be extensions from one of the parts over portions of the other of the parts. The stops help in preventing plastic bending and/or fracture of the flexures due to stress.
F16F 1/02 - Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
37.
COMPUTER/HUMAN GENERATION, VALIDATION AND USE OF A GROUND TRUTH MAP TO ENFORCE DATA CAPTURE AND TRANSMISSION COMPLIANCE IN REAL AND NEAR REAL TIME VIDEO OF A LOCAL SCENE
A hybrid computer/human method for generating, validating and using a ground truth map (GTM) provides for enforcement of data capture and transmission compliance of real and near real time video. Computer-implemented processes are used to identify and classify as allowed or disallowed objects in a local scene based on attributes of a video session. A human interface is available to validate either the object identification or classification. The GTM is then used, preferably in conjunction with motion sense, to enforce data capture and transmission compliance of real and near real time video within the local scene.
G08B 13/196 - Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
H04N 21/431 - Generation of visual interfaces; Content or additional data rendering
H04N 23/61 - Control of cameras or camera modules based on recognised objects
38.
RESILIENT FASTENER SYSTEM AND RESILIENT FASTENER INSERT
A fastener insert (18) includes a hollow shaft (20) extending in an axial direction. The hollow shaft is configured to receive a threaded fastener (16) at a first axial end (26) of the hollow shaft. The fastener insert also includes a supporting flange (30) extending radially outward from a second axial end (28) of the hollow shaft. The hollow shaft includes an internally threaded shaft portion (34). The internally threaded shaft portion is configured to secure the threaded fastener received in the hollow shaft. The hollow shaft also includes a resilient shaft portion (36) formed as a unitary single piece with the internally threaded shaft portion.
An engine assembly includes a combustor wall (30) with a first skin (38), a second skin (40), a core and a sound attenuation passage (80). The first skin forms a peripheral boundary of a combustion volume (44) on a first side of the combustor wall. The second skin forms a peripheral boundary of a plenum (48) on a second side of the combustor wall. The core includes a plurality of resonator elements (64) between the first skin and the second skin. A first resonator element (64) includes a first base (66) and a plurality of first protrusions projecting out from the first base (68). Each first protrusion includes a first bore (74) fluidly coupled with a first cavity within the first base. The sound attenuation passage extends within the core and is fluidly coupled with the combustion volume through an attenuation passage aperture in the first skin. The sound attenuation passage is fluidly decoupled from the plenum by the second skin.
A propulsion system includes multiple solid rocket motors that are activated by a single initiator. The rocket motors act in parallel, providing thrust in a single direction. The initiator activates an ignition charge that is in or operatively coupled to a plenum that transports hot gasses from the ignition charge to the rockets to be ignited. The plenum may be an annular plenum, which may be located in an annular manifold. The plenum may be an unchoked plenum, allowing flow of hot gasses without choking. The plenum may be lined with an insulator material. A cover may be used to cover the plenum, and also to receive the rocket motors. The rocket motors may be solid-fuel rocket motors. The individual rocket motors may have separate ignition booster charges coupled to the plenum, which are ignited by the ignition charge and which in turn ignite the propellant grains.
F02K 9/76 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof combined with another jet-propulsion plant with another rocket-engine plant; Multistage rocket-engine plants
F02K 9/78 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof combined with another jet-propulsion plant with an air-breathing jet-propulsion plant
An aeration assembly includes an aeration rod extending along a longitudinal axis between a first end and a second end and having a plurality of longitudinal grooves extending along the longitudinal axis from the first end at least partially to the second end around at least a portion of a circumference of the aeration rod. The aeration assembly also includes an air-activated material adjacent the aeration rod at least along the plurality of longitudinal grooves. The plurality of longitudinal grooves are configured to distribute air from the first end of the aeration rod to the air-activated material adjacent the aeration rod.
B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
Described herein is an apparatus and a method for a low noise infinite radio frequency (RF) delayed-locked loop (DLL). The apparatus comprises a phase detector having a first input configured to receive a first RF signal, a second input, and an output; an infinite phase shifter having a first input configured to receive a second RF signal, an input bus, and an output connected to the second input of the phase detector; and a controller having a first input connected to the output of the phase detector and an output bus connected to the input bus of the infinite phase detector, wherein the output of the infinite phase shifter comprises a low noise signal in phase alignment with the first RF signal.
H03L 7/081 - Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop - Details of the phase-locked loop provided with an additional controlled phase shifter
Described herein is a traveling wave tube (TWT), comprising an electron gun configured to generate an electron beam (E-beam); a signal injector configured to generate a radio frequency (RF) signal; a slow wave structure (SWS) having an aperture configured to combine the E-beam and the RF signal; an outer wall enclosing the SWS; and at least one electromagnetically-active material on one of (1) at least one projection on at least one of a periphery of the SWS and on a side of the outer wall facing the SWS and (2) the periphery of the SWS configured to receive at least one electromagnetic signal to control, on-the-fly, amplification of the RF signal by maximizing dampening of spurious modes while minimizing dampening of operating modes.
H01J 23/30 - Damping arrangements associated with slow-wave structures, e.g. for suppression of unwanted oscillations
H01J 25/36 - Tubes in which an electron stream interacts with a wave travelling along a delay line or equivalent sequence of impedance elements, and without magnet system producing an H-field crossing the E-field
44.
INTEGRATED STRUCTURE, TWO RADAR MODULAR ASSEMBLY (RMA) STACKABLE RADAR
A radar array assembly is provided, comprising a first chassis and a first vertical stiffener. The first chassis is configured to house a first set of array electronics and a second set of array electronics. The first vertical stiffener is disposed within and operably coupled to the first chassis to enable the first chassis to be resistant to buckling and to define a first cavity in which the first set of array electronics is disposed and a second cavity in which the second set of array electronics is disposed, wherein the first vertical stiffener is configured to be embedded within the first set of array electronics and the second set of array electronics, wherein the first vertical stiffener comprises a first integrated cooling manifold configured to cool both the first set of array electronics and the second set of array electronics.
G01S 7/02 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
G01S 7/03 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
H01Q 1/02 - Arrangements for de-icing; Arrangements for drying-out
A method of forming a heat spreader on a printed circuit board (PCB), having a power dissipating component operably coupled thereto, includes attaching a thermally and electrically conductive structure, to a first side of the PCB to define a first PCB region that includes the component and a second PCB region without. The underside of the component is underfilled to electrically insulate its solder contacts. A first protective layer is applied to the second region of the PCB. A conductive plating membrane is deposited to the first region, the second region, and to the structure. A second protective layer is applied over a portion of the conductive plating membrane that overlays the second region, leaving exposed the rest of the conductive plating membrane. An electrically and thermally conductive layer is electroplated over the exposed areas of the conductive plating membrane, to form a heat exchanger within the first region.
A method includes using electroforming (406) to deposit a first portion of material (304). The method also includes placing (408) a preformed tube (200) on the first portion of material, where the preformed tube includes multiple capillary pathways (206) and multiple bends (208). The method further includes using electroforming (410) to deposit a second portion of material (306) over the first portion of material and over the preformed tube to form a heat exchanger (100, 150). The preformed tube forms at least a portion of a pulsating heat pipe (104, 154) within the heat exchanger, and the pulsating heat pipe is configured to transport thermal energy through the heat exchanger.
F28D 15/04 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes with tubes having a capillary structure
B33Y 80/00 - Products made by additive manufacturing
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
47.
IAS FIELD CONTROL OF TOTAL-FIELD OPTICALLY PUMPED MAGNETOMETERS (OPMS) FOR IMPROVED DETECTION
A controllable bias field Bbias is applied to a single total-field 0PM to maintain signal lock when an observable magnetic field Bmeas enters the 0PM' s dead zone. One or more electromagnetic (EM) coils are placed in proximity to the single 0PM. Based on either a calibration of the field or a measured signal strength, a current command is calculated and applied to the one or more EM coils to produce the bias field Bbias to lift the observable magnetic field Bmeas out of the dead zone. The bias level is updated at a rate sufficient to maintain signal lock without interfering with the operation of the 0PM. This allows a single 0PM to sense the observable magnetic field Bmeas in all directions without having to either re-orient the 0PM or to use multiple orthogonally positioned OPMs.
G01R 33/00 - Arrangements or instruments for measuring magnetic variables
G01R 33/032 - Measuring direction or magnitude of magnetic fields or magnetic flux using magneto-optic devices, e.g. Faraday
G01R 33/26 - Arrangements or instruments for measuring magnetic variables involving magnetic resonance for measuring direction or magnitude of magnetic fields or magnetic flux using optical pumping
48.
LOW-K AND LOW DIELECTRIC LOSS DIELECTRIC COMPOSITION FOR AEROSOL JET PRINTING
A printable dielectric ink composition includes an inhibited catalyst-polymer complex and a crosslinker, wherein the printable dielectric ink composition has a viscosity of about 1 to about 10 cP.
C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
B29C 64/00 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
B33Y 70/00 - Materials specially adapted for additive manufacturing
C09D 11/106 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
49.
INTERCONNECT SYSTEM FOR HIGH CURRENT CONDUCTOR TO CIRCUIT BOARD
An electrical interconnect including slotted lug with a receiving end for connecting to a flat electrical conductor and a fastening end for connecting to a surface mount terminal extending from the surface of a circuit, such as an integrated metal substrate (IMS) circuit board or a circuit card assembly. The interconnect provides a secure connection capable of transmitting a current of at least 100 Arms, to give a non-limiting example value. The interconnect further provides low contact resistance and ease of manufacturing.
H01R 4/58 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
H01R 12/57 - Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
H01R 12/62 - Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures
H01R 4/18 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
50.
SCALABLE UNIT CELL DEVICE FOR LARGE TWO-DIMENSIONAL ARRAYS WITH INTEGRATED PHASE CONTROL
A scalable independent unit cell device architecture may include a phase-shifting element and a phase shift driver both integrated within the unit cell device. The phase shift driver may be coupled to the phase-shifting element and the phase shift driver may independently control the phase-shifting element to produce an optical beam having a desired phase. The unit cell device may further include an optical antenna that outputs the beam having the desired phase. The unit cell device may be formed as an opto-electronic hybrid optimized to leverage direct bond hybridization (DBH) to attach an electronic integrated circuit wafer to a side of a photonic integrated circuit wafer. The resulting unit cell device (i.e., 24 microns) may tightly integrate individual element-level phase control, which may be implemented within large-scale two-dimensional photonic arrays with hemispherical beam steering.
G02F 1/01 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
G02F 1/225 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference in an optical waveguide structure
51.
LIGHTWEIGHT, THERMALLY STABLE DISK FOR A COAXIAL TRAVELLING WAVE TUBE (CoTWT)
A lightweight, thermally stable disk for use in a slow wave structure (SWS) of CoTWT is configurated without sacrificing thermal management, structural integrity, or RF performance. Refractory metal is removed from regions of the disk where no RF interaction is expected and replaced with resistive ceramic material. The disk includes one or more central ribs positioned about the periphery of a central hub. A plurality of U-shaped receptacles may extend from the one or more central ribs. The disk is plated with a patterned metal to define laminar conductive tabs spaced around the periphery that are separated by solid resistive ceramic tabs and to electromagnetically connect all exposed refractory metal surfaces. The plating metal must be capable of being deposited and patterned in a thin layer of 10 to 100 microns, exhibit a Young's Modulus of < 100 GPa to provide both the ductility and malleability to plastically deform and exhibit an electrical conductivity at least and preferably greater than that of the refractory metal.
A rocket motor includes at least one inert rod. The inert rod has a groove that extends along the length of the inert rod. The groove may be machined by a lathe, die, and/or CNC machine, such that the groove is configured helically around the rod. A reactive wire is inserted into the groove along the length of the inert rod. The grooved inert rod, and the reactive wire together constitute the burn rate enhancer assembly. The rocket motor is configured such that the burn rate enhancer assembly is inserted into a rocket motor casing. The rocket motor casing is then filled with a burnable propellant grain, the highly loaded grain, which is in a liquid or semi-solid state. The highly loaded grain then cures in the rocket motor casing around the burn rate enhancer assembly.
Described herein is an apparatus and a method for thermal management. The apparatus includes an integrated circuit (IC) including at least one field effect transistor, wherein each at least one FET comprises a gate, a drain, and a source; and a diamond substrate bonded to the gate, the drain, and the source of each of the at least one FETs, wherein the diamond substrate includes at least one tuning element. The method includes forming at least one FET on an IC, wherein each at least one FET comprises a gate, a drain, and a source; and bonding a diamond substrate to the gate, the drain, and the source of each of the at least one FETs, wherein the diamond substrate includes at least one tuning element.
H01L 23/373 - Cooling facilitated by selection of materials for the device
H01L 23/14 - Mountings, e.g. non-detachable insulating substrates characterised by the material or its electrical properties
H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
54.
EXTENDED RANGE PROJECTILE AND METHOD FOR PROPELLING AN EXTENDED RANGE PROJECTILE
An extended range projectile (10) includes an outer shell (12), a center projectile body (14) axially moveable from a stowed position to a deployed position within the outer shell, and a pusher plate assembly (16) variably locked to an aft end of the outer shell. The pusher plate assembly includes a check valve disposed at an aft end of the pusher plate assembly, the check valve being moveable from a closed position to an open position. In the open position of the check valve, the check valve is configured to permit entry of a gunfire pressure, created in a barrel of a gun from which the extended range projectile is configured to be projected, into the pusher plate assembly such that, when the extended range projectile exits the barrel, the gunfire pressure moves the center projectile body from the stowed position to the deployed position and propels the extended range projectile.
F42B 5/184 - Caseless ammunition; Cartridges having combustible cases telescopic
F42B 12/62 - Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile
55.
ROCKET MOTOR WITH EMBEDDED BURNABLE CUTTING EXPLOSIVE ENERGETIC MATERIAL
A rocket motor (18) has an energetic material (22) between solid fuel (propellent, 28) and a casing (24) that surrounds the solid fuel. The energetic material is configured to be burned along with the solid fuel during normal operation of the rocket motor to produce thrust. The energetic material can also be detonated to cause rupture of the casing. The detonation may be initiated as part of a flight termination process. The detonation may also be initiated as a part of process to prevent as a higher-order reaction, such as in reaction to heating from a fire or other cause. The energetic material may be arranged to function as part of a shaped charge, able to split the casing when detonated. By being located inside the casing, the energetic material does not adversely affect aerodynamics of the flight vehicle of which the rocket motor is a part, such as a missile.
F02K 9/28 - Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants having two or more propellant charges with the propulsion gases exhausting through a common nozzle
F02K 9/38 - Safety devices, e.g. to prevent accidental ignition
B64G 1/40 - Arrangements or adaptations of propulsion systems
B64G 1/52 - Protection, safety or emergency devices; Survival aids
56.
COMMON GATE INPUT CIRCUIT FOR III/V D-MODE BUFFERED FET LOGIC (BFL)
A common gate input circuit for IIEV D-mode Buffered FET Logic (BFL) maximizes the dynamic range to drive a level shift section to set the proper voltage levels to switch the BFL and allows for decoupling of the switch point from the dynamic range. A common gate switching section includes a D- mode FET (FET1) configured as a load and a D-mode FET (FET2) configured as a common gate connected in series between high and low supplies Vdd and Veel (typically ground potential). The gate electrode of FET2 is coupled to Veel and the source electrode of FET2 is driven by the external digital signals. This eliminates the additional supply Vss, thus maximizing the dynamic range of the section to switch between Vdd and Veel and decouples the dynamic range from the switch point. An input level shift section may shift the Data In to the source electrode of FET2 to shift the switch point and to present a high input impedance.
H03L 7/22 - Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
H03L 7/23 - Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
G01S 13/48 - Indirect determination of position data using multiple beams at emission or reception
G01S 7/02 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
G06F 1/04 - Generating or distributing clock signals or signals derived directly therefrom
A digital receiver/exciter (DREX) antenna calibration system includes a DREX antenna array, and an antenna probe configured to receive energy from the DREX antenna array and/or transmit energy to the DREX antenna array. A modular signal processing unit is in signal communication with the DREX antenna array. The modular signal processing unit includes a plurality of individual signal processing programmable integrated circuits configured to process the energy. A modular array controller is in signal communication with the probe controller, the DREX antenna array, and the modular signal processing unit. The modular array controller includes at least one modular array unit that includes an array programmable integrated circuit and a multicore processor.
An electronic communication translation module (CTM) for use with a system having a plurality of system components and at least one communication bus is provided. The communication bus is configured to transfer electronic communications in a standardized bus format. The CTM includes a protocol storage submodule and a processor. The protocol storage submodule stores a plurality of predetermined system component protocols (PSCPs), each associated with a respective system component. The processor is in communication with the protocol storage submodule and a memory storing instructions, which instructions when executed cause the processor to: a) identify a respective system component; and b) translate at least a portion of a respective system component electronic communication protocol into a standardized bus format transferable on the at least one communication bus using the selected PSCP.
An optical signal receivers, systems including the optical signal receivers, and methods of operating the same include a multimode fiber circulator including a first port, a second port, and a third port, a first multimode fiber cable coupled to the first port and having an input configured to receive a complex modulated optical signal and provide the complex modulated optical signal to the first port of the multimode fiber circulator, a second multimode fiber cable including a low Q optical resonator coupled to the second port of the multimode fiber circulator that is configured to receive the complex modulated optical signal from the second port of the multimode circulator, and a third multimode fiber cable coupled to the third port of the multimode fiber circulator that is configured to receive a reflected optical signal from the third port of the multimode circulator, the reflected optical signal being reflected from the low Q optical resonator.
Methods and apparatus for a housing assembly including a housing comprising a conductive material, a conductor extending through the housing, and a dielectric material at least partially surrounding the conductor. Portions of the housing may surround the conductor such that the conductor, the dielectric, and the portions of the housing form a channel through the housing.
Apparatus and associated methods relate to a low-noise wideband active phase shifter. The low-noise wideband active phase shifter includes first and second transconductance cells (14,16), a fixed LC series network (18L1,18L2,18C) and a tunable LC series network (18Ll,16TL,20C1...4,20T1...4) configured to form an all-pass lattice network. The first and second transconductance cells, each include a transistor (14T,16T), a feedback network (14FB,14RFB,14CFB,16FB,16RFB,16CFB), and a transistor biasing network (14NBIAS-14RBIAS-14CBIAS-16BIAS-16RBIAS-16CBIAS)- The transistor has an input terminal and an output terminal. The negative feedback network electrically couples the input and output terminals of the transistor. The biasing network provides input and output biasing of the transistor. The fixed LC series network connects between the first and the second transconductance cells. The tunable LC series network connects between the first and the second transconductance cells.
Disclosed herein is a computer circuit card cage system configured to house one or more computer circuit cards. The computer circuit card cage system can comprise a housing comprising one or more walls having one or more apertures formed therein. The computer circuit card cage system can further comprise one or more support rails supported on one or more of the walls and configured to support a computer circuit card. The one or more support rails can have one or more apertures formed therein to facilitate flow of a fluid through the one or more support rails. The flow path of the fluid is through the one or more apertures in the walls of the housing, and the one or more apertures in the support rails.
A heat spreading element is provided. The heat spreading element includes compressible pyrolytic graphite sheets and rigid pyrolytic graphite sheets interleaved with the compressible pyrolytic graphite sheets.
An effector having an extendible range and a method for extending the range of an effector includes using an axially translatable center body that is movable from a stowed position, in which the center body is stowed in an outer body of the effector, to a deployed position in which the center body extends out of the outer body to extend the axial length of the effector. The effector includes a ramjet assembly and the subsystems of the effector are contained in the center body. The movement of the center body exposes radially positioned ramjet fuel in the outer body, such that the air entering the ramjet inlet may be heated by combusting the air with the fuel for additional fuel and propulsion of the effector.
F42B 5/10 - Cartridges, i.e. cases with propellant charge and missile with self-propelled bullet
F42B 30/00 - Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
F02K 7/10 - Plants in which the working-fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines
F42B 5/045 - Cartridges, i.e. cases with propellant charge and missile of telescopic type
F42B 15/36 - Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
66.
AIN CHANNEL HETEROSTRUCTURE FIELD EFFECT TRANSISTOR
H01L 29/778 - Field-effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT
H01L 29/267 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, elements provided for in two or more of the groups , , , , in different semiconductor regions
H01L 29/08 - Semiconductor bodies characterised by the shapes, relative sizes, or dispositions of the semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
H01L 29/20 - Semiconductor bodies characterised by the materials of which they are formed including, apart from doping materials or other impurities, only AIIIBV compounds
Methods and apparatus for an amplifier (400) including first (406) and second (408) transistors coupled in a stacked configuration with first and second current mirrors to provide respective bias signals to the amplifier transistors (406, 408). A reference transistor (424) is coupled to the first and second current mirrors for referencing the bias signals together.
H03F 1/02 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
H03F 1/22 - Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively
H03F 1/30 - Modifications of amplifiers to reduce influence of variations of temperature or supply voltage
H03F 3/193 - High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
A radio frequency ("RF") waveguide device fabricated by additive manufacturing is provided that includes a RF channel comprising a wall and a RF component comprising an unsupported span extending from the wall of the RF channel. The unsupported span can include at least one unsupported surface extending from the wall at an oblique angle relative to the wall. The RF component formed in this manner with additive manufacturing does not negatively impact the RF performance of the RF waveguide.
A method for fabricating a multi-layer resonator assembly includes sequentially fabricating a plurality of vertically-stacked resonator layers including, for each resonator layer of the plurality of resonator layers, depositing a dielectric layer, forming at least one film bulk acoustic resonator (FBAR) cavity in the deposited dielectric layer, filling each FBAR cavity of the at least one FBAR cavity with a sacrificial material block, and depositing a FBAR material stack over the at least one FBAR cavity. The deposited FBAR material stack is in contact with the sacrificial material block and the dielectric layer. The method further includes removing the sacrificial material block from the at least one FBAR cavity for each resonator layer of the plurality of resonator layers subsequent to sequentially fabricating the plurality of resonator layers.
H03H 3/02 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
70.
ENERGY STORAGE POWER SOURCE USING SELF-EXCITATION OF A WOUND-ROTOR INDUCTION MACHINE (WRIM)
A stored energy power source uses a wound-rotor induction machine (WRIM) to receive energy from a prime mover via a rotating shaft, provide magnetization reactive energy from a self-excited AC capacitor bank, store the energy in N energy storage elements (ESEs) via tertiary windings, and discharge the ESEs to deliver energy via a secondary winding to a load producing output. Each discharging ESE contributes to a total flux at the secondary winding to sum the individual ESEs voltages. These voltages can be stepped up or down by a transformation ratio between the secondary winding and each of the tertiary windings. The WRIM provides a safe, reliable and efficient system to provide high-level AC and DC output voltages.
H02J 3/30 - Arrangements for balancing the load in a network by storage of energy using dynamo-electric machines coupled to flywheels
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
H02J 7/34 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
71.
MONOLITHIC WAVEGUIDE AND SUPPORTING WAVEGUIDE BRIDGE
A radio frequency (RF) waveguide comprising a channel, a filter, and a support bridge. The channel can comprise an outer wall defining an inner cavity configured to propagate electromagnetic waves. The filter can be disposed in the inner cavity of the channel and can comprise a perimeter edge and an aperture. The support bridge can comprise a first interface connected to an inner surface of the outer wall at a first location, and a second interface connected to the filter at a position between the perimeter edge and the aperture of the filter to support the filter within the channel. The support bridge can remain in place as connected to the filter, and the filter and waveguide can operate without interference from the support bridge, meaning that the waveguide meets all performance specifications and functions as intended for a particular application even with the support bridge left in place.
An edge launch radio frequency (RF) signal connector (10) including ground contact tabs (22) that have radially extending arms (24). The arms (24) cover a gap between a circuit board (14) and the connector (10) to reduce the RF ground path between the RF reference ground and a signal pin (20) is supported by the connector (10). The arms (24) extend radially inwardly from the protruding ground contact tabs (22) toward a central support aperture (18) that supports the signal pin (20). The arms (24) and the ground contact tabs (22) are formed integrally with the main connector body (16) as one piece. The arms (24) and the ground contact tabs (22) are planar in shape such that the arms (24) and the ground contact tabs (22) lie flush on the circuit board (14) when the connector (10) is arranged over the edge of the circuit board (14).
H01R 24/50 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency mounted on a PCB [Printed Circuit Board]
H01R 12/57 - Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
H01R 13/6597 - Specific features or arrangements of connection of shield to conductive members the conductive member being a contact of the connector
H01R 43/20 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
H05K 3/00 - Apparatus or processes for manufacturing printed circuits
H01R 13/6594 - Specific features or arrangements of connection of shield to conductive members the shield being mounted on a PCB and connected to conductive members
H01R 24/44 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising impedance matching means
A system includes a computer processor, a computer memory, and a user interface. The system receives a plurality of tasks, data relating to conditions and environments associated with the plurality of tasks, and a plurality of goals relating to planning and scheduling of the plurality of tasks. The goals are received from a plurality of sources, and the goals are addressed as a function of the conditions and environments. The system displays on the user interface, as a function of the plurality of goals, an analytical view of the conditions and environments relating to the plurality of tasks and an analytical view of a status of the plurality of tasks.
An interconnect layer for an integrated circuit device includes a low radio frequency (RF) loss primary coating that forms a main portion of the interconnect layer, an opening formed in the primary coating, a high aspect ratio patternable secondary coating within the opening, and a via formed in the secondary coating. An aspect ratio of the via is greater than an aspect ratio of the opening.
H01L 21/768 - Applying interconnections to be used for carrying current between separate components within a device
H01L 23/532 - Arrangements for conducting electric current within the device in operation from one component to another including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
75.
ENERGY STORAGE POWER SOURCE USING A WOUND-ROTOR INDUCTION MACHINE (WRIM) TO CHARGE AND DISCHARGE ENERGY STORAGE ELEMENTS (ESES)
A stored energy power source uses a wound-rotor induction machine (WRIM) to receive energy from an external source, store the energy in N energy storage elements (ESEs) via tertiary windings, and discharge the ESEs to deliver energy via a secondary winding to a load producing output. Each discharging ESE contributes to a total flux at the secondary winding to sum the individual ESEs voltages. These voltages can be stepped up or down by a transformation ratio between the secondary winding and each of the tertiary windings. A flywheel may be coupled to the secondary to store and delivery energy. Load factor power control can be used to stabilize the output voltage. The source may be configured to allow for the bi-directional flow of energy between an external power source, the ESEs, the flywheel and the load. The WRIM provides a safe, reliable and efficient system to provide high-level AC and DC output voltages.
H02J 3/30 - Arrangements for balancing the load in a network by storage of energy using dynamo-electric machines coupled to flywheels
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
76.
STANDALONE GNSS ANTI-JAM NULLER-BEAMFORMER COMBINING SFAP AND STAP
A method and apparatus for providing a standalone anti-jamming (AJ) nuller-beamformer. Signals from an antenna array include a sum of Global Navigation Satellite System (GNSS) signals and jamming signals from a plurality of spatial sources. A front end is configured to amplify, filter, down-convert, and sample the input signals which are then filtered, down-converted, and decimated prior to frequency-domain and time-domain partitioning. Weights are computed and applied for spatial nulling of jamming signals in each frequency bin for the partitioned signals. Frequency and time-domain reconstruction generates a reconstructed signal with suppressed jamming.
A sequential torque application retention system includes a driver mechanism having a shaft; a center drive coupled to a tip end; an outboard drive coupled to the tip end; a screw including a screw head with a central receiver, the central receiver corresponding to the center drive, the central receiver configured to receive the center drive; a pair of outboard receivers formed in the screw head corresponding to the outboard drive, the pair of outboard receivers configured to receive the outboard drive; wherein the center drive is engaged with the screw head at the central receiver responsive to an initial torque and the outboard drive is engaged with the screw head at the pair of outboard receivers responsive to a subsequent torque; and wherein the outboard receivers are positioned so that they do not engage with the outboard drive responsive to the initial torque.
F16B 23/00 - Specially-shaped heads of bolts or screws for rotations by a tool
B25B 23/00 - TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING - Details of, or accessories for, spanners, wrenches, screwdrivers
Described herein is a positioning spring (100) configured to rotatably engage with a rotatable shaft (402). The rotatable shaft is configured to rotate relative to the positioning spring. The positioning spring comprises a first compliant lobe (104a) positioned at a first radial position. The first compliant lobe is configured to engage with one or more detent surfaces (410a) of the rotatable shaft to resist rotation of the rotatable shaft and to bias the rotatable shaft in one or more angular positions. The first compliant lobe is configured to flex upon engagement of the first compliant lobe with the rotatable shaft at a surface position out of contact with the detent surface.
F16D 7/02 - Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
79.
MULTI SLOPE OUTPUT IMPEDANCE CONTROLLER TO REDUCE CURRENT IMBALANCE IN A MASTERLESS CONFIGURATION OF N PARALLEL-CONNECTED POWER CONVERTERS AND IMPROVE LOAD REGULATION IN A SINGLE POWER CONVERTER
A multi slope output impedance controller is configured to vary the effective impedance Zeff n of a power converter to reduce a current imbalance between power supplies in a masterless configuration of N parallel-connected power supplies while maintaining load regulation during start-up and sready-state operation. Generally speaking, the controller commands a high value of Zeff n when lout n is low to facilitate current sharing and reduce current imbalance lb between the power supplies and commands a low value of Zeff n when lout n is high to improve load regulation.
H02M 3/158 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
Described herein is a retaining pin comprising a tubular outer shaft and a rotatable shaft disposed within the tubular outer shaft. The rotatable shaft is rotatably engaged with the tubular outer shaft. The rotatable shaft can comprise a locking protrusion fixed to an end of the rotatable shaft and that is operable to rotate with rotation of the rotatable shaft. An axis of the tubular outer shaft and an axis of the rotatable shaft are eccentric.
Methods and apparatus for a self-supported stripline structure including a center conductor having stubs. Opposing first and second ground planes form a cavity in which the center conductor is located. Opposing first and second lateral structures enclose the cavity sides. A first one of the stubs is connected to the first lateral structure to fix the center conductor in position within the cavity.
A flexible vacuum assembly fixture including a base; at least one arm coupled to the base; a suction cup fitting coupled to the at least one arm distal from the base; a vacuum generator fluidly coupled to the suction cup fitting via a vacuum tube; and a grounding feature configured to electrically ground the suction cup fitting, the at least one arm, and the base.
A dual-path active damper reduces power losses while damping ringing waveforms in resonant circuits. One path clamps the peak value of a node voltage at less than a rated voltage of a protected device while allowing the node voltage to ring and decay naturally. Another path waits for some delay after the peak value is clamped until closing an active switch to draw a reset current through an RC snubber to actively dampen the ringing of the node voltage. The delay and on-time of the active switch are set to reduce or even minimize power losses for damping the ringing waveform within a specified period.
H02M 3/156 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
84.
FAN BEHAVIOR ANOMALY DETECTION USING NEURAL NETWORK
Generally discussed herein are devices, systems, and methods for predicting fan failure. A method includes providing, to a first NN that models nominal behavior of a first fan and provides a value indicating a first amount of deviation from nominal as an output, first parameters of fan operation of the first fan, receiving, from the first NN and responsive to the first parameters, first data indicating the first amount of deviation from nominal, providing, to a second NN that models nominal behavior of a second fan and provides a value indicating a second amount of deviation from nominal as an output, second parameters of fan operation of the second fan, receiving, from the second NN and responsive to the first parameters, second data indicating the second amount of deviation from nominal, and estimating that the first or second fan has failed by comparing the first and second data.
A topology for double-ended dual magnetic DC-DC SPC ("Voltage Doubler") for all else being equal provides twice the output voltage as the conventional topology. The Voltage Doubler differs in that the secondary configuration is stacked in series as compared to the conventional topology in which the secondary configuration of the dual magnetics are in parallel. The output current is AC coupled rather than DC coupled to the load thereby doubling the output voltage. Because of the AC coupling, the Voltage Doubler is configured to automatically maintain balance of the secondary capacitors. During reset of the magnetics, the primary windings are shorted and both synchronous rectifier switches are closed. Due to transformer action, the output capacitors are connected to the output such that charge equalization forces the voltage on each capacitor to be equal.
H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
A thermal testing system includes a mirror array, having tiltable mirror elements, that reflects thermal radiation output from a radiative heat source. The mirror elements can be tilted as required to achieve a desired radiative heating profile, for example on an object to be tested. The thermal testing system may also have additional mirror arrays, and/or a heat sink. The radiative heat source may be stationary, and may have different zones (for example with different bulbs) that may be controlled separately, for example by having separate illumination intensity control for the different zones. The testing system may be configured for different tests, and/or to provide time-varying heating profiles.
A plurality of scattered laser pulses is received, each scattered laser pulse associated with at least one plurality of respective dwells. A set of 3D velocity information is received, which is derived from photo events detected in information associated with the received plurality of scattered laser pulses. Each dwell in the plurality of dwells is associated with one or more photo events. The 3D velocity information comprises information estimating each respective photo event's respective position in 6D space during the respective dwell associated with the photo event. For each dwell, its respective photo events are projected into a common reference frame, determined based on the 3D velocity information, to generate a set of motion-compensated point clouds. Each respective motion-compensated point cloud, for each dwell, is registered to the other motion-compensated point clouds in the set, to generate a set of registered point clouds, which are merged into a volumetric image.
G01S 7/48 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
G01S 17/42 - Simultaneous measurement of distance and other coordinates
G01S 17/58 - Velocity or trajectory determination systems; Sense-of-movement determination systems
G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
88.
MONOSTATIC OPTICAL TERMINAL SUPPORTING MULTIPLE INDEPENDENT TRANSMIT AND RECEIVE CHANNELS
A method includes providing outgoing optical signals (110a-110b, 210a-210b) for transmission by a monostatic optical terminal (100, 200, 304) using multiple transmit channels (102a-102b, 202a-202b) and providing incoming optical signals (112a-112b, 212a-212b) obtained by the monostatic optical terminal to multiple receive channels (104a-104b, 204a-204b). The method also includes using a polarization beam splitter/combiner (116, 216) to combine the outgoing optical signals into a combined outgoing optical signal (118, 218) and to split a combined incoming optical signal (120, 220) into the incoming optical signals. The method further includes using at least one feedback loop (134a-140b, 234-240) to adjust an aim or path of at least one of the outgoing optical signals or at least one of the incoming optical signals.
A method includes obtaining (402) multiple data items (302-326) from multiple heterogeneous data sources including at least one sensor (110), where the multiple data items are related to operation of an autonomy (116). The method also includes processing (404) the multiple data items using a machine learning model (330) to determine a likelihood that an operator (112) associated with the autonomy will override an action of the autonomy during the operation of the autonomy. The method further includes outputting (408) the likelihood for review by a user.
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
A packed sensor line array system includes sensors mounted outboard of cable packs wrapped around a central mandrel. The system may have multiple rows (layers) of the sensors and cable packs, surrounded by a cannister. Cable retainers may be used to retain cable ends near sensors, to keep the cable ends out of the way of subsequent winding operations. The winding may be done in situ, with the mandrel mounted to a rotatable chuck that is rotated to wind the individual cable packs sequentially around the mandrel, with positioning of the sensors outboard of the windings occurring between the winding operations. A positionable indexing tool may be coupled to and moved along the mandrel, to define a space along the mandrel for each cable pack winding.
G01V 1/38 - Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
B65H 75/00 - Storing webs, tapes, or filamentary material, e.g. on reels
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
G01V 1/20 - Arrangements of receiving elements, e.g. geophone pattern
G10K 11/00 - Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
91.
SYSTEMS AND METHODS FOR INTEGRATION OF THIN FILM OPTICAL MATERIALS IN SILICON PHOTONICS
A method of fabricating a photonics stack includes providing a silicon photonics structure (302, 362) having a silicon substrate (306, 366), an oxide layer (308, 368), and an epitaxial silicon layer (310, 370) with one or more active devices (128, 228). The method also includes providing an interposer structure (106, 206, 304, 364) and attaching the silicon photonics structure and the interposer structure. The method further includes removing the silicon substrate from the silicon photonics structure and removing at least a portion of the oxide layer from the silicon photonics structure. In addition, the method includes disposing a thin film lithium niobate coupon (104, 204, 320, 380) on or within the silicon photonics structure and encapsulating the thin film lithium niobate coupon with an optical material (108, 208, 332, 392).
G02B 6/12 - Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
G02B 6/13 - Integrated optical circuits characterised by the manufacturing method
G02B 6/132 - Integrated optical circuits characterised by the manufacturing method by deposition of thin films
G02B 6/136 - Integrated optical circuits characterised by the manufacturing method by etching
92.
METHODS AND SYSTEMS FOR PERFORMING CONVOLUTIONS USING OPTICAL NETWORKS
An apparatus includes a frequency comb (505a) configured to generate first carrier signals (505) having at least one first frequency spacing. The apparatus also includes multiple modulators (345) each configured to modulate an amplitude of one of the first carrier signals and generate a modulated carrier signal. The apparatus further includes a two-dimensional array of optical couplers (330) configured to perform one-dimensional discrete Fourier transforms in a first direction using the modulated carrier signals. The apparatus also includes an array of coherent detectors (625a-625n) and first demultiplexers (605) optically coupled to outputs of the array of optical couplers and to the coherent detectors. The apparatus further includes a local oscillator (LO) bank or array (515a) configured to generate second carrier signals (515) having at least one second frequency spacing different from the at least one first frequency spacing. In addition, the apparatus includes second demultiplexers (615) optically coupled to outputs of the LO bank or array and to the coherent detectors.
A lift cart includes a lift table that moves between a raised position and a lowest position and a braking device attached to the lift cart. A braking device includes an actuator, a linkage bar, and a first brake assembly. The linkage bar connects to the actuator. The linkage bar translates in a first direction upon activation of the actuator. The first brake assembly connects to the linkage bar. The first brake assembly moves from a deployed state to a retracted state as the linkage bar translates in the first direction.
A process for computing the optimal solution to the quadratic assignment problem (QAP) defined on lattices includes storing facility data as facilities in a facility grid with facility tiles. Location data are stored as locations in a location grid with location tiles. Each facility tile is associated with a location tile and each facility in each facility tile is associated with a location in an associated location tile. A flow function is identified as distances between the plurality of facilities in the facility grid, and a distance function is identified as distances between the plurality of locations in the location grid. An association function relating the facilities to the locations is identified such that a solution with a low-cost function depending on the flow function and the distance function is found.
An electrical system includes a signal security detection system performing a method of determining a security of an interconnect. An interconnect extended between a first device and a second device. The interconnect has at least one conductive pathway aligned along a direction between the first device and the second device. A light source is configured to transmit a light through the interconnect and an optical detector is configured to receive the light passing through the interconnect. A processor records a first optical signature of the interconnect based on the light received at the optical detector at a first time, records a second optical signature of the interconnect based on the light received at the optical detector at a second time, and validates the second optical signature against the first optical signature to determine a security of the interconnect.
A spring-loaded ball valve includes a spring, a first pin, a second pin, and a handle. The spring is configured to apply pressure to the first pin and second pin when the ball valve is in both the fully open and fully closed positions. The spring applies maximum torque when the ball valve is in the fully open or fully closed position to ensure the valve remains in the fully open or fully closed position.
F16K 5/06 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
F16K 35/02 - Means to prevent accidental or unauthorised actuation to be locked or disconnected by means of a push or pull
F16K 31/56 - Mechanical actuating means without stable intermediate position, e.g. with snap action
F16F 3/04 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs
F03G 1/02 - Spring motors characterised by shape or material of spring, e.g. helical, spiral, coil
F16F 1/14 - Torsion springs consisting of bars or tubes
A device and method for context-aware, intelligent beaconing in a mission include: determining a current location of a beacon device; obtaining context information from one or more of a plurality of sensors, a database, a server, the beacon device, and external devices, wherein the context information includes behavior of the beacon device, and mission objectives; dynamically fusing the context information together to produce fused context information; dynamically setting a frequency for transmission of a beacon, based on the fused context information; and transmitting the beacon at the set frequency.
Discussed herein are devices, systems, and methods for Bayesian neural network (BNN) training using mini-batch particle flow. A method for training a Bayesian neural network (BNN) using batched inputs and operating the trained BNN can include initializing particles such that each particle individually represents pointwise values of respective NN parameters of NNs and such that the particles collectively represent a distribution of parameters of the BNN, optimizing, using min-batch training particle flow, the particles based on batches of inputs, resulting in optimized distributions for the parameters, determining a prediction distribution using the optimized distributions for the parameters and predictions from each of the NNs, and providing a marginalized distribution representative of the prediction distribution.
Discussed herein are devices, systems, and methods for training and operating a Bayesian neural network (BNN). A method can include initializing particles that each individually represent pointwise values of respective NN parameters of NNs that collectively represent a distribution of parameters of the BNN, optimizing, using training particle flow, the particles resulting in optimized distributions for the parameters, determining a prediction distribution using the optimized distributions for the parameters and predictions from each of the NNs, and providing a marginalized distribution representative of the prediction distribution.
A chip-embedded printed circuit board 100 includes a cavity 110 in a printed circuit board, a chip 104 in the cavity of the printed circuit board, and a thixotropic dielectric filler 106 in a gap in the cavity to seal the chip in the printed circuit board.
patents
