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 caractérisées par leur forme, leurs dimensions relatives ou leur disposition relative ne transportant pas le courant à redresser, à amplifier ou à commuter
H01L 21/285 - Dépôt de matériaux conducteurs ou isolants pour les électrodes à partir d'un gaz ou d'une vapeur, p.ex. condensation
H01L 29/778 - Transistors à effet de champ avec un canal à gaz de porteurs de charge à deux dimensions, p.ex. transistors à effet de champ à haute mobilité électronique HEMT
H01L 29/20 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, uniquement des composés AIIIBV
6.
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 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
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 - Mécanismes à vis avec billes, rouleaux ou organes similaires entre pièces travaillant en conjugaison; Eléments essentiels pour l'utilisation de ces organes
F42B 10/64 - Pilotage par le déplacement de surfaces portantes d'ailettes de pilotage
B64C 13/28 - Dispositifs de transmission sans amplification de puissance ou dans les cas où l'amplification de puissance est sans objet mécaniques
F16H 21/44 - Transmissions ne comportant essentiellement que des tringles ou des leviers, avec ou sans glissières tout mouvement étant dans un seul plan ou dans des plans parallèles pour convertir un mouvement oscillant en mouvement alternatif et vice versa ou pour transmettre ces mouvements
8.
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 - Refroidissement par liquide par évaporation de liquides
H01L 23/427 - Refroidissement par changement d'état, p.ex. caloducs
H01L 23/473 - Dispositions pour le refroidissement, le chauffage, la ventilation ou la compensation de la température impliquant le transfert de chaleur par des fluides en circulation par une circulation de liquides
F28D 15/02 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations dans lesquels l'agent se condense et s'évapore, p.ex. tubes caloporteurs
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
H02K 9/20 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p.ex. de l'huile dans lesquels l'agent de refroidissement se vaporise dans l'enveloppe de la machine
9.
WATER-BASED POLYMER NETWORK FOR TRANSPIRANT COOLING APPLICATIONS
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 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 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 1/38 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
G10K 11/00 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son en général; Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général
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; Elimination de données inutiles, p.ex. réduction de redondance
H04N 19/90 - Procédés ou dispositions pour le codage, le décodage, la compression ou la décompression de signaux vidéo numériques utilisant des techniques de codage non prévues dans les groupes , p.ex. les fractales
G06T 9/40 - Codage sous forme arborescente, p.ex. à quatre branches, à huit branches
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 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la direction de la lumière
H01F 7/08 - Electro-aimants; Actionneurs comportant des électro-aimants avec armatures
H01F 7/122 - Guidage ou positionnement d'armatures, p.ex. maintien des armatures dans leur position extrême au moyen d'un aimant permanent
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 - Macromolécules obtenues par polymérisation à partir de composés contenant plusieurs groupes époxyde par molécule en utilisant des agents de durcissement ou des catalyseurs qui réagissent avec les groupes époxyde caractérisées par les catalyseurs utilisés
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 - Amortisseurs de vibrations; Amortisseurs de chocs avec surfaces de friction à déplacement rectiligne l'une le long de l'autre
F16F 15/02 - Suppression des vibrations dans les systèmes non rotatifs, p.ex. dans des systèmes alternatifs; Suppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif
17.
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 - Lissage ou élagage de la forme; Opérations morphologiques; Squelettisation
G06V 10/26 - Segmentation de formes dans le champ d’image; Découpage ou fusion d’éléments d’image visant à établir la région de motif, p.ex. techniques de regroupement; Détection d’occlusion
G06V 10/58 - Extraction de caractéristiques d’images ou de vidéos relative aux données hyperspectrales
G06V 10/74 - Appariement de motifs d’image ou de vidéo; Mesures de proximité dans les espaces de caractéristiques
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 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de la position ou de la direction des rayons lumineux, c. à d. déflexion
H01Q 3/26 - Dispositifs pour changer ou faire varier l'orientation ou la forme du diagramme de directivité des ondes rayonnées par une antenne ou un système d'antenne faisant varier la distribution de l’énergie à travers une ouverture rayonnante
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
G02F 1/01 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
G02B 6/34 - Moyens de couplage optique utilisant des prismes ou des réseaux
19.
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.
H01L 23/00 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails de dispositifs à semi-conducteurs ou d'autres dispositifs à l'état solide
H01L 23/552 - Protection contre les radiations, p.ex. la lumière
20.
PASSIVELY JETTISONED CONTROL SURFACE RESTRAINT AND COVER FOR TACTICAL FLIGHT VEHICLES
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 - Dispositifs de transmission sans amplification de puissance ou dans les cas où l'amplification de puissance est sans objet mécaniques utilisant des mécanismes à câbles, chaînes ou tiges
B64C 13/50 - Dispositifs de transmission avec amplification de puissance utilisant l'énergie électrique
23.
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 - Réplication, distribution ou synchronisation de données entre bases de données ou dans un système de bases de données distribuées; Architectures de systèmes de bases de données distribuées à cet effet
24.
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.
F42B 15/36 - Moyens de liaison entre le moteur-fusée et le corps d'une roquette; Raccords pour relier les différents étages d'une roquette; Moyens de désassemblage
28.
SURFACE MOUNT COMPATIBLE PLANAR MAGNETICS FOR HIGH SHOCK ENVIRONMENTS
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 - Montages, supports ou suspensions de transformateurs, réactances ou bobines d'arrêt
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre eux; Fixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre 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.
F42B 15/36 - Moyens de liaison entre le moteur-fusée et le corps d'une roquette; Raccords pour relier les différents étages d'une roquette; Moyens de désassemblage
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 - Ressorts en acier ou faits d'un autre matériau ayant une faible friction intérieure; Ressorts enroulés, de torsion, à lame, en forme de coupelles, à corps annulaire ou similaire, le matériau de ressort ne jouant pas de rôle
33.
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.
H04N 7/18 - Systèmes de télévision en circuit fermé [CCTV], c. à d. systèmes dans lesquels le signal vidéo n'est pas diffusé
G06V 20/00 - RECONNAISSANCE OU COMPRÉHENSION D’IMAGES OU DE VIDÉOS Éléments spécifiques à la scène
G08B 13/196 - Déclenchement influencé par la chaleur, la lumière, ou les radiations de longueur d'onde plus courte; Déclenchement par introduction de sources de chaleur, de lumière, ou de radiations de longueur d'onde plus courte utilisant des systèmes détecteurs de radiations passifs utilisant des systèmes de balayage et de comparaison d'image utilisant des caméras de télévision
H04N 21/431 - Génération d'interfaces visuelles; Rendu de contenu ou données additionnelles
H04N 23/61 - Commande des caméras ou des modules de caméras en fonction des objets reconnus
34.
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.
F16B 5/02 - Jonction de feuilles ou de plaques soit entre elles soit à des bandes ou barres parallèles à elles par organes de fixation utilisant un filetage
35.
COMBUSTOR WALL CORE WITH RESONATOR AND/OR DAMPER ELEMENTS
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 9/18 - Forme ou structure des charges de propergols solides du type à combustion sur leur surface interne comportant une cavité interne en forme d'étoile ou en forme analogue
F02K 9/34 - Carters; Chambres de combustion; Leurs chemises
F02K 9/76 - Moteurs-fusées, c. à d. ensembles fonctionnels portant à la fois le combustible et son oxydant; Leur commande combinés avec un autre ensemble fonctionnel à propulsion par réaction avec un autre moteur-fusée; Moteurs-fusées à plusieurs étages
F02K 9/78 - Moteurs-fusées, c. à d. ensembles fonctionnels portant à la fois le combustible et son oxydant; Leur commande combinés avec un autre ensemble fonctionnel à propulsion par réaction avec un ensemble fonctionnel de propulsion par réaction alimenté par de l'air ambiant
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 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p.ex. chromatographie préparatoire en phase gazeuse avec adsorbants fixes
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 - Commande automatique de fréquence ou de phase; Synchronisation utilisant un signal de référence qui est appliqué à une boucle verrouillée en fréquence ou en phase - Détails de la boucle verrouillée en phase avec un déphaseur commandé additionnel
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 - Dispositifs d'amortissement associés aux structures à ondes lentes, p.ex. pour supprimer les oscillations indésirables
H01J 25/36 - Tubes, dans lesquels il se produit une interaction entre le faisceau et une onde se propageant le long d'une ligne à retard ou d'une succession équivalente d'éléments d'impédance, et ne comportant pas de système d'aimants produisant un champ H croisa
40.
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 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
G01S 7/03 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe - Détails de sous-ensembles HF spécialement adaptés à ceux-ci, p.ex. communs à l'émetteur et au récepteur
H01Q 1/02 - Dispositifs de dégivrage; Dispositifs de séchage
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 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations dans lesquels l'agent se condense et s'évapore, p.ex. tubes caloporteurs avec des tubes ayant une structure capillaire
B33Y 80/00 - Produits obtenus par fabrication additive
F28D 15/02 - Appareils échangeurs de chaleur dans lesquels l'agent intermédiaire de transfert de chaleur en tubes fermés passe dans ou à travers les parois des canalisations dans lesquels l'agent se condense et s'évapore, p.ex. tubes caloporteurs
F28D 21/00 - Appareils échangeurs de chaleur non couverts par l'un des groupes
43.
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 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
G01R 33/032 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs magnéto-optiques, p.ex. par effet Faraday
G01R 33/26 - Dispositions ou appareils pour la mesure des grandeurs magnétiques faisant intervenir la résonance magnétique pour la mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques utilisant le pompage optique
44.
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 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant
B29C 64/00 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C09D 11/106 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone
45.
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 - Connexions conductrices de l'électricité entre plusieurs organes conducteurs en contact direct, c. à d. se touchant l'un l'autre; Moyens pour réaliser ou maintenir de tels contacts; Connexions conductrices de l'électricité ayant plusieurs emplacements espacés de connexion pour les conducteurs et utilisant des organes de contact pénétrant dans l'isolation caractérisées par la forme ou le matériau des organes de contact
H01R 12/57 - Connexions fixes pour circuits imprimés rigides ou structures similaires caractérisées par les bornes bornes pour le montage en surface
H01R 12/62 - Connexions fixes pour circuits imprimés flexibles, câbles plats ou à rubans ou structures similaires se raccordant à des circuits imprimés rigides ou à des structures similaires
H01R 4/18 - Connexions conductrices de l'électricité entre plusieurs organes conducteurs en contact direct, c. à d. se touchant l'un l'autre; Moyens pour réaliser ou maintenir de tels contacts; Connexions conductrices de l'électricité ayant plusieurs emplacements espacés de connexion pour les conducteurs et utilisant des organes de contact pénétrant dans l'isolation effectuées uniquement par torsion, enroulage, pliage, sertissage ou autre déformation permanente par sertissage
46.
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 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
G02F 1/225 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur par interférence dans une structure de guide d'ondes optique
47.
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 - Refroidissement facilité par l'emploi de matériaux particuliers pour le dispositif
H01L 23/14 - Supports, p.ex. substrats isolants non amovibles caractérisés par le matériau ou par ses propriétés électriques
H01L 29/20 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, uniquement des composés AIIIBV
50.
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 10/38 - Dispositions pour augmenter la portée
F42B 5/184 - Munitions sans douille; Cartouches à douille combustible télescopiques
F42B 12/62 - Munitions en grappes ou munitions-cargo, c. à d. projectiles portant un seul ou plusieurs sous-projectiles les sous-projectiles étant éjectés dans une direction parallèle à l'axe longitudinal du projectile porteur
51.
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 - Moteurs-fusées, c. à d. ensembles fonctionnels portant à la fois le combustible et son oxydant; Leur commande utilisant des propergols solides comportant au moins deux charges de propergols dont les gaz de propulsion s'échappent par une tuyère commune
F02K 9/38 - Dispositifs de sécurité, p.ex. pour prévenir un allumage accidentel
B64G 1/40 - Aménagements ou adaptations des systèmes de propulsion
B64G 1/52 - Dispositifs de protection, de sécurité ou de sauvetage; Moyens de survie
52.
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 - Synthèse de fréquence indirecte, c. à d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant plus d'une boucle
H03L 7/23 - Synthèse de fréquence indirecte, c. à d. production d'une fréquence désirée parmi un certain nombre de fréquences prédéterminées en utilisant une boucle verrouillée en fréquence ou en phase en utilisant plus d'une boucle avec des compteurs d'impulsions ou des diviseurs de fréquence
G01S 13/48 - Détermination indirecte des données relatives à la position utilisant des faisceaux multiples à l'émission ou à la réception
G01S 7/02 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
G06F 1/04 - Génération ou distribution de signaux d'horloge ou de signaux dérivés directement de ceux-ci
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 - Cartouches, c. à d. projectile et douille avec charge propulsive formant un tout avec balle autopropulsée
F42B 30/00 - Projectiles non prévus ailleurs, caractérisés par la catégorie ou le type de munitions, p.ex. par le lanceur ou l'arme utilisés
F02K 7/10 - Ensembles fonctionnels dans lesquels le fluide de travail est utilisé uniquement sous forme de jet, c. à d. ensembles ne comportant ni turbine ni autre moteur entraînant un compresseur ou une soufflante carénée; Leur commande caractérisés par une compression dans un diffuseur, c. à d. tubulures aéro-thermodynamiques ou statoréacteurs
F42B 5/045 - Cartouches, c. à d. projectile et douille avec charge propulsive formant un tout du type télescopique
F42B 15/36 - Moyens de liaison entre le moteur-fusée et le corps d'une roquette; Raccords pour relier les différents étages d'une roquette; Moyens de désassemblage
62.
AIN CHANNEL HETEROSTRUCTURE FIELD EFFECT TRANSISTOR
H01L 29/778 - Transistors à effet de champ avec un canal à gaz de porteurs de charge à deux dimensions, p.ex. transistors à effet de champ à haute mobilité électronique HEMT
H01L 29/267 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, des éléments couverts par plusieurs des groupes , , , , dans différentes régions semi-conductrices
H01L 29/08 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices avec des régions semi-conductrices connectées à une électrode transportant le courant à redresser, amplifier ou commuter, cette électrode faisant partie d'un dispositif à semi-conducteur qui comporte trois électrodes ou plus
H01L 29/20 - Corps semi-conducteurs caractérisés par les matériaux dont ils sont constitués comprenant, à part les matériaux de dopage ou autres impuretés, uniquement des composés AIIIBV
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 des amplificateurs pour augmenter leur rendement, p.ex. étages classe A à pente glissante, utilisation d'une oscillation auxiliaire
H03F 1/22 - Modifications des amplificateurs pour réduire l'influence défavorable de l'impédance interne des éléments amplificateurs par utilisation de couplage dit "cascode", c. à d. étage avec cathode ou émetteur à la masse suivi d'un étage avec grille ou base à la masse respectivement
H03F 1/30 - Modifications des amplificateurs pour réduire l'influence des variations de la température ou de la tension d'alimentation
H03F 3/193 - Amplificateurs à haute fréquence, p.ex. amplificateurs radiofréquence comportant uniquement des dispositifs à semi-conducteurs comportant des dispositifs à effet de champ
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.
H01P 11/00 - Appareils ou procédés spécialement adaptés à la fabrication de guides d'ondes, résonateurs, lignes ou autres dispositifs du type guide d'ondes
65.
MULTI-LAYER RESONATOR ASSEMBLY AND METHOD FOR FABRICATING SAME
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 - Appareils ou procédés spécialement adaptés à la fabrication de réseaux d'impédance, de circuits résonnants, de résonateurs pour la fabrication de résonateurs ou de réseaux électromécaniques pour la fabrication de résonateurs ou de réseaux piézo-électriques ou électrostrictifs
66.
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 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des machines dynamo-électriques accouplées à des volants
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
H02J 7/34 - Fonctionnement en parallèle, dans des réseaux, de batteries avec d'autres sources à courant continu, p.ex. batterie tampon
67.
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.
H01P 1/208 - Cavités en cascade; Résonateurs en cascade situés à l'intérieur d'une structure en forme de guide d'ondes creux
H01P 11/00 - Appareils ou procédés spécialement adaptés à la fabrication de guides d'ondes, résonateurs, lignes ou autres dispositifs du type guide d'ondes
68.
HIGH FREQUENCY IMPEDANCE MATCHING EDGE LAUNCH RF CONNECTOR
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 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement spécialement adaptés à la haute fréquence montés sur une PCB [carte de circuits imprimés]
H01R 12/57 - Connexions fixes pour circuits imprimés rigides ou structures similaires caractérisées par les bornes bornes pour le montage en surface
H01R 13/6597 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs l'organe conducteur étant un contact du connecteur
H01R 43/20 - Appareils ou procédés spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation de connecteurs de lignes ou de collecteurs de courant ou pour relier les conducteurs électriques pour assembler les pièces de contact avec le socle isolant, le boîtier ou le manchon ou pour les en désassembler
H05K 3/00 - Appareils ou procédés pour la fabrication de circuits imprimés
H01R 13/6594 - Caractéristiques ou dispositions spécifiques de raccordement du blindage aux organes conducteurs le blindage étant monté sur une carte de circuits imprimés et raccordé à des organes conducteurs
H01R 24/44 - Dispositifs de couplage en deux pièces, ou l'une des pièces qui coopèrent dans ces dispositifs, caractérisés par leur structure générale ayant des contacts disposés concentriquement ou coaxialement spécialement adaptés à la haute fréquence comprenant des moyens d'adaptation d'impédance ou des composants électriques, p.ex. des filtres ou des interrupteurs comprenant des moyens d'adaptation d'impédance
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 - Fixation d'interconnexions servant à conduire le courant entre des composants distincts à l'intérieur du dispositif
H01L 23/532 - Dispositions pour conduire le courant électrique à l'intérieur du dispositif pendant son fonctionnement, d'un composant à un autre comprenant des interconnexions externes formées d'une structure multicouche de couches conductrices et isolantes inséparables du corps semi-conducteur sur lequel elles ont été déposées caractérisées par les matériaux
71.
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 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des machines dynamo-électriques accouplées à des volants
H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
72.
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 - Têtes de boulons ou de vis de forme spéciale pour permettre leur rotation à l'aide d'un outil
B25B 23/00 - OUTILS OU OUTILLAGE D'ÉTABLI NON PRÉVUS AILLEURS, POUR FIXER, JOINDRE, DÉSENGAGER OU TENIR - Parties constitutives ou accessoires des clés à écrous, clés anglaises, tournevis
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 - Accouplements à glissement, p.ex. glissant en cas de surcharge, pour absorber les chocs du type à friction
75.
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 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p.ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
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.
H01P 11/00 - Appareils ou procédés spécialement adaptés à la fabrication de guides d'ondes, résonateurs, lignes ou autres dispositifs du type guide d'ondes
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.
B23Q 3/08 - Moyens de fixation de la pièce autres que les moyens actionnés mécaniquement
B25B 11/00 - Porte-pièces ou dispositifs de mise en position non couverts par l'un des groupes , p.ex. porte-pièces magnétiques, porte-pièces utilisant le vide
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 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p.ex. régulateurs à commutation
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/00 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
80.
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 - APPAREILS POUR LA TRANSFORMATION DE COURANT ALTERNATIF EN COURANT ALTERNATIF, DE COURANT ALTERNATIF EN COURANT CONTINU OU VICE VERSA OU DE COURANT CONTINU EN COURANT CONTINU ET EMPLOYÉS AVEC LES RÉSEAUX DE DISTRIBUTION D'ÉNERGIE OU DES SYSTÈMES D'ALI; TRANSFORMATION D'UNE PUISSANCE D'ENTRÉE EN COURANT CONTINU OU COURANT ALTERNATIF EN UNE PUISSANCE DE SORTIE DE CHOC; LEUR COMMANDE OU RÉGULATION - Détails d'appareils pour transformation
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
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 - DÉTERMINATION DE LA DIRECTION PAR RADIO; RADIO-NAVIGATION; DÉTERMINATION DE LA DISTANCE OU DE LA VITESSE EN UTILISANT DES ONDES RADIO; LOCALISATION OU DÉTECTION DE LA PRÉSENCE EN UTILISANT LA RÉFLEXION OU LA RERADIATION D'ONDES RADIO; DISPOSITIONS ANALOGUES UTILISANT D'AUTRES ONDES - Détails des systèmes correspondant aux groupes , , de systèmes selon le groupe
G01S 17/42 - Mesure simultanée de la distance et d'autres coordonnées
G01S 17/58 - Systèmes de détermination de la vitesse ou de la trajectoire; Systèmes de détermination du sens d'un mouvement
G01S 17/89 - Systèmes lidar, spécialement adaptés pour des applications spécifiques pour la cartographie ou l'imagerie
84.
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 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"
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 - Séismologie; Prospection ou détection sismique ou acoustique spécialement adaptées aux zones recouvertes d'eau
B65H 75/00 - Stockage des bandes, rubans ou d'un matériau filiforme, p.ex. sur tourets
H02G 1/10 - Méthodes ou appareils spécialement adaptés à l'installation, entretien, réparation, ou démontage des câbles ou lignes électriques pour poser les câbles, p.ex. appareils de pose sur véhicule dans ou sur l'eau
G10K 11/00 - Procédés ou dispositifs pour transmettre, conduire ou diriger le son en général; Procédés ou dispositifs de protection contre le bruit ou les autres ondes acoustiques ou pour amortir ceux-ci, en général
87.
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 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage du type guide d'ondes optiques du genre à circuit intégré
G02B 6/13 - Circuits optiques intégrés caractérisés par le procédé de fabrication
G02B 6/132 - Circuits optiques intégrés caractérisés par le procédé de fabrication par le dépôt de couches minces
G02B 6/136 - Circuits optiques intégrés caractérisés par le procédé de fabrication par gravure
88.
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.
G06N 3/067 - Réalisation physique, c. à d. mise en œuvre matérielle de réseaux neuronaux, de neurones ou de parties de neurone utilisant des moyens optiques
89.
LIFT CART WITH MECHANICALLY ACTUATED AUTOMATIC BRAKING DEVICE
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 - Robinets à boisseau consistant seulement en un dispositif obturateur dont au moins une des faces d'obturation a la forme d'une surface de solide de révolution plus ou moins complète, le mouvement d'ouverture et de fermeture étant essentiellement rota dont les boisseaux sont à surface sphérique; Leurs garnitures d'étanchéité
F16K 35/02 - Dispositions empêchant la mise en action accidentelle ou non autorisée à verrouillage ou déverrouillage par poussoir-tirette
F16K 31/56 - Moyens mécaniques d'actionnement sans position intermédiaire stable, p.ex. par à-coup
F16F 3/04 - Ensembles de ressorts constitués par plusieurs ressorts, p.ex. pour réaliser une caractéristique d'élasticité voulue avec ressorts en acier ou faits d'un autre matériau, ayant une friction intérieure faible composés uniquement de ressorts enroulés
F03G 1/02 - Mécanismes moteurs à ressort caractérisés par la forme ou le matériau du ressort, p.ex. en hélice, spirale ou bobine
F16F 1/14 - Ressorts de torsion faits de barres ou de 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.
To prevent the capture and transmission of excluded data, the current pose and motion of a video camera are used to predict a pose and predicted FOV for the video camera over one or more future frames. The predicted pose and predicted FOV are used to generate cues to enforce an alignment condition to an allowed object or to prevent capture of a disallowed object. If the cues fail, an interrupt is generated to prevent capture of disallowed objects in the video signal and perhaps to deactivate the video camera. The predicted FOV prevents excluded data from entering the video signal and reaching circuitry or being processed downstream of the video camera. This can be implemented in real or near real time.
To prevent the capture and transmission of excluded data, a short time- delay between an object recognition sensor and the video camera is exploited to recognize disallowed objects and control the video camera to interrupt and stop images from being transferred into the memory chip where the video signal is formed. The time-delay can also be used to enforce an alignment condition of the video camera to an allowed object. The time-delay can be implemented in real or near real time with a delay line or temporary memory chip positioned between the video camera's ROIC and memory chip. The time-delay prevents the excluded data from entering the video signal and reaching circuitry or being processed downstream of the memory chip.
A system and method for measurement and correction of aero-optical and aero-thermal effects to an EO/IR sensor's window/dome (102) on a supersonic flight-vehicle. Range-gating of laser pulses measures and separates aerodynamic and atmospheric effects. Separate control algorithms and control loops at different update rates both simplifies the control algorithms and improves overall performance. The use of a MEMS MMA (124) having tip/tilt/piston capabilities as the deformable mirror to provide wavefront correction enhances overall performance. The corrected laser pulses may also be used to actively illuminate a target to provide both active and passive detection.
G02B 26/12 - Systèmes de balayage utilisant des miroirs à facettes multiples
G02B 26/08 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la direction de la lumière
G02B 26/06 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la phase de la lumière
G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,
An ink stabilizing composition includes a polymeric network including an acrylate polymer and a plurality of high aspect ratio particles each having an aspect ratio of about 2:1 to about 30:1 and an average particle diameter of about 0.5 to about 1.2 micrometers.
C09D 11/037 - Encres d’imprimerie caractérisées par des particularités autres que la nature chimique du liant caractérisées par le pigment
C09D 11/107 - Encres d’imprimerie à base de résines artificielles contenant des composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone à partir d'acides non saturés ou de leurs dérivés