An embodiment provides convergent tracking for Global Navigation Satellite System (GNSS) signals (e.g., binary offset carrier (BOC), etc.) in GNSS applications, such as positioning, navigation, timing, and guidance. The embodiment employs a situation-aware two-dimensional (2D) routing algorithm that provides fast convergence to stable tracking. Further, an embodiment may provide subcarrier phase ambiguity resolution that resolves carrier phase with assurance to support high integrity navigation, including high integrity real-time kinematic (RTK) applications. Moreover, an embodiment may provide tracking to more accurate subcarrier phase estimates. This may provide up to four times better ranging accuracy. Accordingly, an embodiment provides robust tracking performance of BOC signals under varying levels of dynamics, high jamming tolerance, more ranging accuracy, support for high integrity navigation, and support for high integrity RTK based positioning and high precision navigation and automatic landing.
A photocathode is formed with a first absorber assembly on a first substrate for a first spectral band and a second absorber assembled on a second substrate for a second spectral band. The second substrate is different from the first substrate, and the second spectral band is different from the first spectral band. The first absorber and the second absorber can be joined using a direct semiconductor wafer bonding process. The integration of a second absorber such as an SWIR absorber layer can extend the spectral response of image intensifier tubes.
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H01J 9/12 - Fabrication des électrodes ou des systèmes d'électrodes des cathodes photo-émissivesFabrication des électrodes ou des systèmes d'électrodes des électrodes à émission secondaire
H01J 9/20 - Fabrication des écrans, sur lesquels ou à partir desquels une image ou un dessin sont formés, pris, convertis ou mis en mémoireApplication de revêtements à la surface de l'enceinte
3.
COMMUNICATIONS SECURITY ARCHITECTURE IMPLEMENTING A SERVICE NEGOTIATION PLANE CHANNEL
A cross-network communication system includes a plurality of client networks. The cross-network communication system includes a Service Negotiation Plane configured to forward messages between the plurality of client networks via a plurality of control interfaces, each of which corresponds to one of the plurality of client networks. Each of the plurality of control interfaces includes a first data guard that belongs to the corresponding client network. The first data guard is configured to prevent exfiltration of classified information or permit only particular types of messages to traverse the Service Negotiation Plane.
09 - Appareils et instruments scientifiques et électriques
Produits et services
downloadable software for use in software defined communications radios, namely, waveform software for secure communication of voice, video, data and location information; Preinstalled software for secure communication of voice, video, data and location information, namely, waveform software sold as a component of software defined communications radios; nondownloadable software for use in software defined communications radios, namely, waveform software for secure communication of voice, video, data and location information
5.
GEOLOCATION OF DIGITAL WIRELESS SIGNALS VIA REMODULATED SIDE-CHANNEL
A method comprises: by a DF antenna array, receiving a modulated RF signal and converting the modulated RF signal to multiple modulated RF channels; converting the multiple modulated RF channels to multiple channels of in-phase (I) and quadrature (Q) (I/Q) data; by a side-channel antenna, converting the modulated RF signal to a modulated RF side-channel; converting the modulated RF side-channel to a side-channel of I/Q data; demodulating and decoding the side-channel of the I/Q data to yield demodulated data; remodulating the demodulated data to produce remodulated reference I/Q data; correlating the remodulated reference I/Q data against the multiple channels of the I/Q data to produce correlation results for the multiple channels of the I/Q data; and determining an angle-of-arrival of the modulated RF signal to the DF antenna array based on the correlation results.
H01Q 3/00 - 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
An apparatus comprises: a case enclosing a space; a power connector, extending through the case, to be connected to an external device; a power switch, retained in the space, and configured to be controlled responsive to commands in a UHF/VHF radio signal received by the power switch; a battery, retained in the space, having battery terminals connected to the power connector such that at least one of the battery terminals is connected to the power connector through the power switch; and an antenna, mounted to the case, to receive, and deliver to the power switch, the UHF/VHF radio signal, wherein the commands include a first command to close the power switch to connect the battery to the external device, and a second command to open the power switch to disconnect the battery from the external device.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02J 9/00 - Circuits pour alimentation de puissance de secours ou de réserve, p. ex. pour éclairage de secours
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
H04B 1/38 - Émetteurs-récepteurs, c.-à-d. dispositifs dans lesquels l'émetteur et le récepteur forment un ensemble structural et dans lesquels au moins une partie est utilisée pour des fonctions d'émission et de réception
H04W 84/18 - Réseaux auto-organisés, p. ex. réseaux ad hoc ou réseaux de détection
Direction-finding antenna arrays are positioned adjacent the interior surface of one or more aircraft fuselage windows. Such positioning may be means of a frame or other structure that is non-intrusively positioned on the fuselage interior wall adjacent the window and to which the antenna array is secured. Alternatively, a movable floor-supported installation fixture is selectively movable into position relative to fuselage windows and supports one or more antenna arrays adjacent those windows.
H01Q 1/28 - Adaptation pour l'utilisation dans ou sur les avions, les missiles, les satellites ou les ballons
H01Q 3/08 - 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 utilisant un mouvement mécanique de l'ensemble d'antenne ou du système d'antenne pour faire varier deux coordonnées de l'orientation
In an embodiment, voltage fault detection is performed for alternating current (AC) multi-phase power systems based on a reconstructed or virtual voltage signal derived from voltage samples captured in a shortened sample window to reduce fault detection time. The embodiment of the present disclosure constructs the virtual voltage signal (emulating the root mean square (RMS) voltage of any of the phases) from the voltage samples captured from signals of the multi-phase power system. The embodiment of the present disclosure employs a shortened sample window of T/2/N (N is the number of phases ≥3) to capture the voltage samples, thereby reducing measurement and fault detection delay. The virtual voltage signal is used determine root mean square (RMS) voltage for voltage fault detection.
H02H 3/16 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à un courant de défaut à la terre ou à la masse
G01R 19/02 - Mesure des valeurs efficaces, c.-à-d. des valeurs moyennes quadratiques
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
A triggered data streaming system captures audio from an aircraft and generates an audio signal. Once the system obtains a trigger indicating a potential emergency on the aircraft, the system streams the audio signal to an external destination outside of the aircraft. The trigger may be an external trigger received from outside the aircraft or an internal trigger generated from sensors within the aircraft.
A power supply comprises: a transformer having a secondary winding to produce an alternating current at terminals of the secondary winding responsive to a switching current in a primary winding of the transformer; an output rectifier, coupled to the terminals and to an output node and a return node of the output rectifier to be connected to a load, including at least a first diode to rectify the alternating current and to supply a rectified current to the output node; and a first resistor (R)-inductor (L)-capacitor (C) (RLC) snubber (first RLC snubber) including a first resistor, a first inductor, and a first capacitor connected in series with each other, the first RLC snubber coupled to the output rectifier and the secondary winding to dampen voltage ringing in the output rectifier caused by the switching current.
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
11.
Fault-tolerant control for static transfer switch system
An apparatus comprises: a first power source to generate first voltages; a power switch to supply the first voltages to a load as load voltages or not supply the first voltages to the load; first sensors to sense first sensed voltages based on the first voltages, and load sensors to sense the load voltages to produce sensed load voltages; and a controller to: upon detecting a failure of the first sensors, identify a faulty sensed voltage of the first sensed voltages caused by the failure based on at least the first sensed voltages and whether the power switch supplies or does not supply the first voltages to the load; compute a reconstructed sensed voltage to replace the faulty sensed voltage based on healthy sensed voltages of the first sensed voltages that are not faulty; and monitor the healthy sensed voltages and the reconstructed sensed voltage.
G01R 35/00 - Test ou étalonnage des appareils couverts par les autres groupes de la présente sous-classe
H02M 3/04 - 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
12.
REVERSIBLE COOLING APPARATUS FOR SYSTEMS WITH VARIABLE HEAT DISTRIBUTION
An apparatus comprising: a first circuit and a second circuit of a circuit configured to operate in a first mode and a second mode in which the first circuit dissipates more power than the second circuit and the second circuit dissipates more power than the first circuit, respectively; a coolant conduit with a first port and a second port and along which the first circuit and the second circuit are located nearer the first port and the second port, respectively; and a conduit switch network configured to deliver colder coolant to the first port or the second port, depending on which mode is active, such that the colder coolant flows through the coolant conduit and initially encounters whichever of the first circuit and the second circuit dissipates more power, then encounters whichever of the first circuit and the second circuit is not dissipating more power.
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
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
13.
Efficient staggered multi-tone (SMT) modulation/demodulation with time-domain phase adjustment
A staggered multi-tone (SMT) modulator that includes a Fourier transform module that is coupled to an input for receiving a complex valued data frame and that transforms the complex valued data frame from a frequency domain into a time domain. A symmetry extractor module extracts a conjugate symmetric data frame and a conjugate antisymmetric data frame from the transformed complex data frame. A first circular shift module performs a circular rotational phase shift on the conjugate symmetric data frame. A first filter filters the phase shifted conjugate symmetric data frame. A second circular shift module performs a circular rotational phase shift on the conjugate antisymmetric data frame. A second filter filters the phase shifted conjugate antisymmetric data frame. A summing module sums the phase shifted conjugate symmetric data frame and the phase shifted conjugate antisymmetric data frame to generate a modulated data frame.
Direction-finding antenna arrays are positioned adjacent the interior surface of one or more aircraft fuselage windows. Such positioning may be means of a frame or other structure that is non-intrusively positioned on the fuselage interior wall adjacent the window and to which the antenna array is secured. Alternatively, a movable floor-supported installation fixture is selectively movable into position relative to fuselage windows and supports one or more antenna arrays adjacent those windows.
H01Q 3/04 - 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 utilisant un mouvement mécanique de l'ensemble d'antenne ou du système d'antenne pour faire varier une coordonnée de l'orientation
H01Q 1/28 - Adaptation pour l'utilisation dans ou sur les avions, les missiles, les satellites ou les ballons
15.
PHASE ARRAY ANTENNA SYSTEM AND PHASE ARRAY ANTENNA FOR IMPROVED TRANSMISSION AND RECEPTION ISOLATION
A phase array antenna system includes a first panel comprising a first array of antennas in a first grid pattern for transmitting first signals, and a second panel comprising a second array of antennas in a second grid pattern for receiving second signals. The first panel and the second panel are fixedly disposed in a plane and co-located along a direction in in the plane. The first grid pattern is the same as the second grid pattern, and the first panel and the second panel are rotated by an angle.
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 phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs 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
H01Q 3/30 - 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 phase relative ou l’amplitude relative et l’énergie d’excitation entre plusieurs éléments rayonnants actifsDispositifs 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 faisant varier la phase
16.
COMPLEXITY ORDERED STATISTIC DECODING USING IMPROVED BIT FLIPPING PATTERN ORDERING
A decoding method implemented at a decoder. The method includes determining a current channel realized reliability metric for each symbol in a received sequence of symbols. The current channel realized reliability metrics of the symbols are then sorted to identify a predetermined number of most reliable independent bits in the sequence. A set of one or more bit-flip patterns are then enumerated based on the current channel realized reliability metrics of the predetermined number of the most reliable independent bits in the sequence. The set of bit-flip patterns or a subset thereof are then applied to a received vector corresponding to the sequence of symbols to decode a codeword.
An antenna module comprises: stacked printed circuit boards (PCBs) (stacked PCBs) centered on an axis and including: a first PCB having a ground plane; a second PCB, spaced above the first PCB, having a first radiator pair and a second radiator pair that face the ground plane and orthogonally crisscross each other at the axis, each radiator pair having respective signal and ground connection pads adjacent to the axis to form a coincident phase center at the axis for each radiator pair; a third PCB, spaced above the second PCB, for impedance matching; and signal connectors extending through the first PCB; and support PCBs extending from the ground plane to the second PCB, the support PCBs having microstrip feeds to connect the respective signal and ground connection pads of the first radiator pair and the second radiator pair to the signal connectors and to the ground plane.
An apparatus comprises: a case enclosing a space; a power connector, extending through the case, to be connected to an external device; a power switch, retained in the space, and configured to be controlled responsive to commands in a UHF/VHF radio signal received by the power switch; a battery, retained in the space, having battery terminals connected to the power connector such that at least one of the battery terminals is connected to the power connector through the power switch; and an antenna, mounted to the case, to receive, and deliver to the power switch, the UHF/VHF radio signal, wherein the commands include a first command to close the power switch to connect the battery to the external device, and a second command to open the power switch to disconnect the battery from the external device.
H01Q 1/24 - SupportsMoyens de montage par association structurale avec d'autres équipements ou objets avec appareil récepteur
H01Q 21/30 - Combinaisons d'unités d'antennes séparées, fonctionnant sur des bandes d'ondes différentes et connectées à un système d'alimentation commun
19.
APPARATUS AND METHOD FOR DIGITAL PREDISTORTION INITIALIZATION OF HIGH-POWER AMPLIFIERS
An apparatus and method are provided for digital predistortion of an electrical signal to pre-compensate for nonlinear distortions in a nonlinear channel (e.g., a nonlinear channel including a high-power amplifier). The digital predistortion processor includes a nonlinear filter. Filter coefficients are determined using a modified input electrical signal having multiple simultaneous tones, using an iterative process which adapts the modified input electrical signal to reduce levels of intermodulation distortions in a modified output electrical signal.
A method comprises: by a DF antenna array, receiving a modulated RF signal and converting the modulated RF signal to multiple modulated RF channels; converting the multiple modulated RF channels to multiple channels of in-phase (I) and quadrature (Q) (I/Q) data; by a side-channel antenna, converting the modulated RF signal to a modulated RF side-channel; converting the modulated RF side-channel to a side-channel of I/Q data; demodulating and decoding the side-channel of the I/Q data to yield demodulated data; remodulating the demodulated data to produce remodulated reference I/Q data; correlating the remodulated reference I/Q data against the multiple channels of the I/Q data to produce correlation results for the multiple channels of the I/Q data; and determining an angle-of-arrival of the modulated RF signal to the DF antenna array based on the correlation results.
H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité
G01S 3/04 - Radiogoniomètres pour déterminer la direction d'où proviennent des ondes infrasonores, sonores, ultrasonores ou électromagnétiques ou des émissions de particules sans caractéristiques de direction utilisant des ondes radio Détails
21.
SYSTEMS AND METHODS OF AVIATION DATA COMMUNICATION ANOMALY DETECTION, AS IN AIR TRAFFIC CONTROL SURVEILLANCE SYSTEMS
Systems and methods for detecting anomalies in aviation data communication systems (e.g., air traffic control surveillance systems), include a processor receiving device status information. A variational autoencoder receives and optimizes the device status information and determines whether it qualifies as an anomaly. Optimized device status information is compared to either non-anomalous or anomalous device status data in a latent space of the variational autoencoder. The latent space preferably includes an n-D point scatter plot and hidden vector values. The processor optimizes the device status information by generating a plurality of probabilistic models of the device status information and determining which of the plurality of models is optimal. A game theoretic optimization is applied to the plurality of models, and the best model is used to generate the n-D point scatter plot in latent space. An image gradient sobel edge detector preprocesses the device status information prior to optimization.
G06V 10/26 - Segmentation de formes dans le champ d’imageDécoupage ou fusion d’éléments d’image visant à établir la région de motif, p. ex. techniques de regroupementDétection d’occlusion
G06V 10/44 - Extraction de caractéristiques locales par analyse des parties du motif, p. ex. par détection d’arêtes, de contours, de boucles, d’angles, de barres ou d’intersectionsAnalyse de connectivité, p. ex. de composantes connectées
G06V 10/46 - Descripteurs pour la forme, descripteurs liés au contour ou aux points, p. ex. transformation de caractéristiques visuelles invariante à l’échelle [SIFT] ou sacs de mots [BoW]Caractéristiques régionales saillantes
A transparent optical device configured to be used with an underlying device. The underlying device is configured to provide output light. The optical device is configured to transmit light from the underlying device through the optical device. The optical device includes first and second zones. The first zone includes a first plurality of transparent regions formed in the first zone allowing light to pass through from the underlying device. The second zone includes a second plurality of transparent regions formed in the second zone which allow light in the first spectrum to pass through from the underlying device at a different transmission efficiency than the first zone.
G02B 13/16 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous à utiliser en combinaison avec des convertisseurs ou des amplificateurs d'image
H10K 59/50 - OLED intégrées avec des éléments de modulation de lumière, p. ex. avec des éléments électrochromes, des éléments photochromes ou des éléments à cristaux liquides
23.
SYSTEMS AND METHODS OF NETWORK SECURITY ANOMALY DETECTION
Network security anomaly detection systems and methods include a processor, in communication with the network, receiving network device status information. A variational autoencoder receives the device status information, optimizes the device status information, and determines whether the device status information qualifies as an anomaly. Optimized device status information is compared to either non-anomalous or anomalous device status data in a latent space of the variational autoencoder. The latent space preferably includes an n-D point scatter plot and hidden vector values. The processor optimizes the device status information by generating a plurality of probabilistic models of the device status information and determining which of the plurality of models is optimal. A game theoretic optimization is applied to the plurality of models, and the best model is used to generate the n-D point scatter plot in latent space. An image gradient sobel edge detector preprocesses the device status information prior to optimization.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Downloadable computer software for enabling mission-critical video calls and group video calls; non-downloadable computer software for enabling mission-critical video calls and group video calls; downloadable computer software for enabling mission-critical data file sharing, detecting and indicating presence, reporting and sharing status information and location information; non-downloadable computer software for enabling mission-critical data file sharing, detecting and indicating presence, reporting and sharing status information and location information; downloadable computer software for enabling mission-critical Push-To-Talk (PTT) communications; non-downloadable computer software for enabling mission-critical Push-To-Talk (PTT) communications.
25.
INTEGRATED MICRO-DISPLAY MODULE WITH FLEX CIRCUITRY
Aspects of the present disclosure relate generally to night-vision systems and more specifically to an integrated flex circuit. One example illustrated herein includes a method of upgrading a night-vision system. The method may include attaching a flex circuit to an intensifier module, in which the flex circuit includes one or more light detectors. The method may include inserting the intensifier module into a housing and folding the flex circuit to expose the one or more light detectors.
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
An apparatus and method are provided for a night vision system that integrates functions of detecting an intensified image and transmitting the intensified image superimposed with a heads-up display. The night vision system includes an optical device having a transparent display configured with pixels emitting display light (i.e., the heads-up display), and the transparent display has transmission regions arranged among the pixels for transmitting light representing an intensified image (e.g., luminescent light from a phosphor screen). Light rays passing through the transmission regions also pass through detectors, which detect light outside of the visible spectrum (e.g., UV light). By detecting light outside of the visible spectrum, the detectors detect the intensified image without degrading the image in the visible spectrum that is provided to users.
H01J 31/50 - Tubes convertisseurs d'image ou amplificateurs d'image, c.-à-d. comprenant un signal d'entrée optique, à rayons X ou analogue, et un signal de sortie optique
G01J 3/44 - Spectrométrie RamanSpectrométrie par diffusion
G02B 13/16 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous à utiliser en combinaison avec des convertisseurs ou des amplificateurs d'image
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H01J 31/12 - Tubes reproducteurs d'images ou de dessins, c.-à-d. comprenant un signal d'entrée électrique et un signal de sortie optiqueTubes analyseurs à spot mobile à écran luminescent
H10K 59/12 - Affichages à OLED à matrice active [AMOLED]
H10K 59/65 - OLED intégrées avec des capteurs d'images inorganiques
H10K 65/00 - Dispositifs intégrés, ou ensembles de plusieurs dispositifs, comprenant au moins un élément organique émetteur de lumière et au moins un composant organique sensible aux rayonnements, p. ex. des optocoupleurs organiques
Selecting a control channel set in a communication system involves monitoring received signals to identify a plurality of nodes of interest (NOI) and determining Eb/N0 values for a plurality of control channels. For this purpose, a data metric and spectral data can be provided to the communication device by the respective NOI for which Eb/N0 values are being determined. A comparison is made of the Eb/N0 values for all NOI to select an optimal control channel set. The optimal control channel set is then used by the communication device to transmit the control channel information to the plurality of NOI.
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]
H04W 72/541 - Critères d’affectation ou de planification des ressources sans fil sur la base de critères de qualité en utilisant le niveau d’interférence
Selecting a control channel set in a communication system involves monitoring received signals to identify a node of interest (NOI) and determining Eb/N0 values for a plurality of control channels. For this purpose, a data metric and spectral data can be provided to the communication device by the NOI for which Eb/N0 values are being determined. A comparison is made of the Eb/N0 values to select an optimal control channel set. The optimal control channel set is then used by the communication device to transmit the control channel information to the NOI.
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]
H04W 72/541 - Critères d’affectation ou de planification des ressources sans fil sur la base de critères de qualité en utilisant le niveau d’interférence
29.
Start sequence method and apparatus for three-phase transformers
A method of applying three-phase power to a transformer having limbs including a first limb, a second limb, and a third limb respectively wound with primary windings that include a first winding, a second winding, and a third winding, includes: generating alternating current (AC) voltages (AC voltages) including a first AC voltage, a second AC voltage, and a third AC voltage; initially not applying the AC voltages to the primary windings; monitoring a relative voltage between the first AC voltage and the second AC voltage; and based on results of monitoring, implementing a power-on sequence of sequentially applying various ones of the AC voltages to corresponding ones of the primary windings until all of the AC voltages are applied to all of the primary windings in a manner that balances flux across the limbs during and after the power-on sequence.
H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs
H02M 1/00 - Détails d'appareils pour transformation
H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
30.
Shaped charge systems with waveshaper-embedded fuzing
A shaped charge system controlled by an electronic safe and arm device located outside a system chamber comprises a billet of explosive fill material in the chamber, a waveshaper disposed in the explosive material, and a detonator and firing module disposed within the waveshaper.
F42B 1/024 - Charges creuses ou profilées comportant un écran en matière inerte, encastré dans la charge explosive
F42B 12/16 - Projectiles ou mines caractérisés par la charge militaire, l'effet recherché ou le matériau caractérisés par la nature de la charge militaire ou par l'effet recherché du type perforant à charge creuse ou profilée comportant un projectile ou une charge additionnels, agissant en succession sur la cible
F42C 15/40 - Dispositifs d'armement des fuséesDispositifs de sécurité pour empêcher l'explosion prématurée des fusées ou des charges dans lesquels l'action de sécurité ou d'armement s'effectue électriquement
A transparent optical device configured to be used with an underlying device. The underlying device is configured to provide output light. The optical device is configured to transmit light from the underlying device through the optical device. The optical device includes first and second zones. The first zone includes a first plurality of active elements configured to cause the first zone to have a first optical performance capability and a first plurality of transparent regions formed in the first zone allowing light to pass through from the underlying device. The second zone includes a second plurality of active elements configured to cause the second zone to have a second optical performance capability that is different than the first optical performance capability and a second plurality of transparent regions formed in the second zone which allow light in the first spectrum to pass through from the underlying device.
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
An optical device. The optical device includes an underlying device that is sensitive to input light, and provides output light in a first spectrum based on absorbing the input light. The optical device further includes a stacked device, formed in an active area of a single semiconductor chip, coupled in an overlapping fashion to the underlying device. The stacked device includes first and second zones. Each zone has a plurality of active elements having a particular lateral size, where the lateral size is different for each zone. Each zone also has a plurality of transparent regions formed in the stacked device which are transparent to the light in the first spectrum to allow light in the first spectrum to pass through from the underlying device. The transparent regions are configured in size and shape to cause each zone to have a particular transmission efficiency for light in the first spectrum.
G09G 3/3225 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice utilisant des sources lumineuses commandées utilisant des panneaux électroluminescents semi-conducteurs, p. ex. utilisant des diodes électroluminescentes [LED] organiques, p. ex. utilisant des diodes électroluminescentes organiques [OLED] utilisant une matrice active
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H01J 31/50 - Tubes convertisseurs d'image ou amplificateurs d'image, c.-à-d. comprenant un signal d'entrée optique, à rayons X ou analogue, et un signal de sortie optique
H10K 59/121 - Affichages à OLED à matrice active [AMOLED] caractérisés par la géométrie ou la disposition des éléments de pixel
H10K 59/65 - OLED intégrées avec des capteurs d'images inorganiques
A radio frequency (RF) rake receiver may include a plurality of diversity receive paths, with each diversity receive path including a respective rake receiver despreader, and a tracking loop. The tracking loop may be configured to generate a composite timing signal based upon the rake receiver despreaders, and provide the composite timing signal to the diversity receive paths.
A radio frequency (RF) communications system may include a first RF node that transmits data, including a new frequency of operation, and a sequence of pilot symbols spread with a complex spreading code sequence. A second RF node may receive an incoming signal from the first RF node and perform despreading for N sample offset delays to generate N despreading sequences for the sequence of pilot symbols. The second RF node may perform a cross-correlation to select a desired despreading sequence from the N despreading sequences, determine a phase offset and timing offset, process the incoming signal based upon the desired despreading sequence, phase offset and timing offset, and switch to the new frequency of operation.
A method for making a single-sided pumped laser device may include determining initial relative spacings of a reflector with respect to a laser medium body having a known absorption coefficient, and to a laser pump having known divergence angles of pump light to be directed at a side of the laser medium body. A merit function defining a desired absorption profile of the pump light passing through the laser medium body may be determined. An optical model may be operated based on the merit function and the determined absorption coefficient, divergence angles and initial relative spacings to determine a curvature of the reflector, and adjusted relative spacings among the laser medium body, the laser pump, and the reflector. The laser medium body, the laser pump, and the reflector may be assembled according to the determined curvature of the at least one reflector and the adjusted relative spacings to make the single-sided pumped laser device having a symmetrical absorption profile.
H01S 3/0941 - Procédés ou appareils pour l'excitation, p. ex. pompage utilisant le pompage optique par de la lumière cohérente produite par un laser à semi-conducteur, p. ex. par une diode laser
36.
Attitude error observations from image relative motions
In some aspects, the techniques described herein relate to a method including: determining a target in a line of sight of an imaging device mounted to an aircraft; acquiring a plurality of images from the imaging device while steering the aircraft through a trajectory about the target; determining a mapping of a fixed reference feature in the plurality of images; and determining an error in an orientation of the imaging device based upon the mapping of the fixed reference feature.
G06V 20/17 - Scènes terrestres transmises par des avions ou des drones
G05D 1/00 - Commande de la position, du cap, de l'altitude ou de l'attitude des véhicules terrestres, aquatiques, aériens ou spatiaux, p. ex. utilisant des pilotes automatiques
Disclosed is a method including: determining a location of each of a plurality of cellular base stations; receiving, at a vehicle, a first signal transmitted by a first cellular base station; receiving a second signal transmitted by a second cellular base station; determining a first angle of arrival of the first signal and a second angle of arrival of the second signal; demodulating the first signal to determine a first identity of the first cellular base station; demodulating the second signal to determine a second identity of the second cellular base station; determining a first location of the first cellular base station based on the first identity; determining a second location of the second cellular base station based on the second identity; and determining a position and velocity of the vehicle from the first location, the first angle of arrival, the second location and the second angle of arrival.
G01S 5/08 - Position d'un radiogoniomètre unique obtenue par détermination de la direction de plusieurs sources espacées d'emplacement connu
G01S 5/02 - Localisation par coordination de plusieurs déterminations de direction ou de ligne de positionLocalisation par coordination de plusieurs déterminations de distance utilisant les ondes radioélectriques
G01S 11/04 - Systèmes pour déterminer la distance ou la vitesse sans utiliser la réflexion ou la reradiation utilisant les ondes radioélectriques utilisant des mesures d'angle
H04W 48/08 - Distribution d'informations relatives aux restrictions d'accès ou aux accès, p. ex. distribution de données d'exploration
In some aspects, the techniques described herein relate to an apparatus including: a ground plane element including: a non-conductive support layer, a conductive layer arranged on the non-conductive support layer, and at least one orifice through the non-conductive support layer and the conductive laminate layer; one or more radiating elements including a feed line and a solder pad, wherein each of the one or more radiating elements is secured to and electrically connected to the ground plane element via soldering of the solder pad to the conductive laminate layer; and at least one connector arranged in the at least one orifice and electrically connected to the feed line.
H01Q 13/08 - Terminaisons rayonnantes de lignes de transmission micro-ondes à deux conducteurs, p. ex. lignes coaxiales ou lignes micro-rayées
H01Q 1/48 - Moyens de mise à la terreÉcrans de terreContrepoids
H01Q 21/24 - Combinaisons d'unités d'antennes polarisées dans des directions différentes pour émettre ou recevoir des ondes polarisées circulairement ou elliptiquement ou des ondes polarisées linéairement dans n'importe quelle direction
A sorting circuit includes: a stack of registers for storing a set of data values from a highest value to a lowest value; a set of comparators for substantially simultaneously comparing an input data value to the set of data values stored in the registers, where the comparators enable registers whose stored data values are less than the input data values to receive a replacement data value; and a set of multiplexers, each associated with a register in the stack to select the replacement data value when the register is enabled. The multiplexer selects the input data value to be the replacement data value if the register is the highest register in the stack currently storing a data value that is less than the input data value. Otherwise, the multiplexer selects the data value stored in the next-highest register in the stack to be the replacement data value.
G06F 1/04 - Génération ou distribution de signaux d'horloge ou de signaux dérivés directement de ceux-ci
G06F 7/24 - Tri, c.-à-d. extraction de données d'un ou de plusieurs supports, nouveau rangement des données dans un ordre de succession numérique ou autre, et réinscription des données triées sur le support original ou sur un support différent ou sur une série de supports
40.
Locally embedded phase change material for heat sinks
A PCM heat sink comprises a thermally conductive body member having a plurality of PCM-receiving bores defined therein from at last one surface thereof. A plurality of pre-cast PCM rods are disposed in respective bores have a phase change temperature from solid to liquid at or just below a specified maximum operating temperature. A plurality of sealing members is disposed in respective bores to seal the rods in the bores. The sealing members may be plugs or thin disc-like lids that are brazed, welded or otherwise secured to the body member at the bore openings.
F28D 17/00 - Appareils échangeurs de chaleur de régénération dans lesquels un agent ou une masse intermédiaire immobile de transfert de chaleur est mis en contact successivement avec chacune des sources de potentiel calorifique, p. ex. en utilisant des particules granulées
F28D 20/02 - Appareils ou ensembles fonctionnels d'accumulation de chaleur en généralAppareils échangeurs de chaleur de régénération non couverts par les groupes ou utilisant la chaleur latente
41.
METHOD OF MITIGATING SATURATION IN INTERPHASE TRANSFORMER OF INTERLEAVED SWITCHED MODE POWER SUPPLY DURING STARTUP
A power supply comprises: a first power module and a second power module each coupled to an interphase transformer; and a controller to: apply a first pulse train and a second pulse train to the first power module and the second power module to cause switching of the first power module and the second power module, respectively, to generate a current that flows through the interphase transformer to an output node; and control a phase difference between the first pulse train and the second pulse train by, during a startup period of the power supply, setting the phase difference to zero to cause concurrent switching of the first power module and the second power module that prevents an inrush of the current to the output node from saturating the interphase transformer.
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
42.
Swir see-spot, laser target acquisition, tracking, and PRF decoding nightvision system
Extracting data in pulsed light, the method includes receiving input light at an image intensifier tube. At a power supply coupled to the image intensifier tube, current to the image intensifier tube is varied to implement automatic brightness control of the intensifier tube based on intensity of the input light received at the image intensifier tube. At a signal processor coupled to the power supply, changes in voltage or current supplied by the power supply occurring as a result of changes in the intensity of the input light to the image intensifier tube are detected. Based on the changes in voltage or current supplied by the power supply, data embedded in the input light to the image intensifier tube is extracted.
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H01L 27/32 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des composants qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux avec des composants spécialement adaptés pour l'émission de lumière, p.ex. panneaux d'affichage plats utilisant des diodes émettrices de lumière organiques
H04N 23/20 - Caméras ou modules de caméras comprenant des capteurs d'images électroniquesLeur commande pour générer des signaux d'image uniquement à partir d'un rayonnement infrarouge
A method of controlling a switching power supply comprises: generating a pulse train; applying the pulse train to a switching transistor of the switching power supply to cause switching of the switching transistor on and off to convert an input voltage applied to the switching transistor to an output voltage, which rises while switching the switching transistor on and off and falls while not switching the switching transistor on and off; and performing hysteretic voltage control of the output voltage by first controlling dropping pulses of the pulse train so that the output voltage remains between hysteretic voltage thresholds including an overvoltage threshold and an undervoltage threshold that is less than the overvoltage threshold.
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
H02M 1/00 - Détails d'appareils pour transformation
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
A method of communicating using a tactical radio in a space vehicle environment. The method includes identifying a relationship between a space vehicle and an area of responsibility. Based on the relationship between the space vehicle and the area of responsibility, the method further includes determining a clock offset. The method further includes applying the clock offset to a system clock. The method further includes using the clock offset applied to the system clock to perform communications between the space vehicle and an entity in the area of responsibility.
Provided for herein is a mirror including a substrate and a reflective coating, wherein the substrate is absorptive at a first wavelength and transmissive at a second wavelength, wherein the reflective coating is reflective at the first wavelength; and wherein the reflective coating is arranged on a first side of the substrate opposite a second side of the substrate; a first radiation source configured to transmit radiation at the first wavelength incident on the first side of the substrate; and a second radiation source configured to transmit radiation at the second wavelength incident on the second side of the substrate.
G02B 5/00 - Éléments optiques autres que les lentilles
C03C 17/36 - Traitement de surface du verre, p. ex. du verre dévitrifié, autre que sous forme de fibres ou de filaments, par revêtement avec au moins deux revêtements ayant des compositions différentes un revêtement au moins étant un métal
G01C 3/08 - Utilisation de détecteurs électriques de radiations
G02B 23/04 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée comprenant des prismes ou des miroirs afin de partager ou de combiner des faisceaux lumineux, p. ex. munis d'oculaires pour plus d'un observateur
A planar transformer including first and second parts of a core with least one of the first and second parts having a center post that resides in an aperture of a PWB. The PWB includes primary windings and secondary windings that surround the center post, are magnetically coupled by the core, and are electrically independent. Separating an uppermost winding from the first part of the core is a first prepreg structure and separating a lowermost winding from the second part of the core is a second prepreg structure. There being no windings disposed between the first and second prepreg structures and the core. This planar transformer structure inhibits the windings from electrically shorting through the core when the planar transformer is subjected to shock or vibration. One variant includes the use of pre-form adhesives sheets located between the solder mask layers of the PWB and the core that further inhibit the windings from shorting through the core.
H01F 41/04 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants pour la fabrication de bobines
47.
Radio frequency (RF) communications system having RF nodes that determine a despreading sequence and phase and timing offsets for frequency agility
A radio frequency (RF) communications system may include a first RF node that transmits data, including a new frequency of operation, and a sequence of pilot symbols spread with a complex spreading code sequence. A second RF node may receive an incoming signal from the first RF node and perform despreading for N sample offset delays to generate N despreading sequences for the sequence of pilot symbols. The second RF node may perform a cross-correlation to select a desired despreading sequence from the N despreading sequences, determine a phase offset and timing offset, process the incoming signal based upon the desired despreading sequence, phase offset and timing offset, and switch to the new frequency of operation.
A radio frequency (RF) communications system may include a first RF node that transmits redundant data channels on different RF frequencies and transmits a control channel for synchronization lock with at least one other RF node. A second RF node may receive the redundant data channels on the different RF frequencies that are subject to RF disruption so that a disrupted redundant data channel loses synchronization lock. The second RF node may reacquire synchronization lock for the disrupted redundant data channel based upon data within another redundant data channel and in a shorter time than reacquiring synchronization lock using the control channel.
Systems and methods comprising: receiving a signal (S) having a first interfering signal component (FISC); generating a replicated SOI (RSOI); and iteratively performing a process to obtain residual errors for FISC. The process involves: modifying an amplitude of RSOI; obtaining a reference signal (RS) by removing RSOI with the modified amplitude from S; analyzing frequency of RS to obtain an estimated carrier frequency and an estimated symbol rate for FISC; generating a remaining signal by removing, from FRS, a signal having the estimated carrier frequency and symbol rate; and determining a residual error of the remaining signal. Parameters for FISC are then set equal to the estimated carrier frequency and symbol rate that are associated with a lowest residual error. The parameters may be further refined in accordance with another process which involves iteratively modifying a symbol rate of FISC. Yet another process may be performed to determine filter parameters.
A photocathode epitaxial structure. The photocathode epitaxial structure includes a binary compound substrate material. The photocathode epitaxial structure further includes an active device absorber layer forming a portion of a p-type device photocathode formed on the binary compound substrate material. The active device absorber layer comprising at least a quaternary or greater material structure configured to be lattice matched with the substrate material to reduce strain to allow charge carriers to go further in the active device absorber layer implemented in the photocathode of a nightvision system.
H01J 29/38 - Écrans photo-électriquesÉcrans à accumulation de charge n'utilisant pas l'accumulation de charge, p. ex. écrans photo-émissifs ou photocathodes
H01J 31/50 - Tubes convertisseurs d'image ou amplificateurs d'image, c.-à-d. comprenant un signal d'entrée optique, à rayons X ou analogue, et un signal de sortie optique
51.
PHOTOCATHODE INCLUDING NANOSTRUCTURES FOR EXTENDED WAVELENGTHS
A photocathode. The photocathode includes an absorber. The absorber a p-type bulk active layer and a plurality of nanostructures formed on the p-type bulk active layer. The Photocathode further includes the plurality of nanostructures, such that the plurality of nanostructures are formed at a band bending region between the bulk active layer and the vacuum.
H01J 9/12 - Fabrication des électrodes ou des systèmes d'électrodes des cathodes photo-émissivesFabrication des électrodes ou des systèmes d'électrodes des électrodes à émission secondaire
52.
SUBSTRATE STACK EPITAXIES FOR PHOTOCATHODES FOR EXTENDED WAVELENGTHS
A photocathode epitaxial structure. The photocathode epitaxial structure includes an improved substrate stack. The improved substrate stack includes a GaAs substrate and one or more additional layers formed on the GaAs substrate. The one or more additional layers are configured to provide an improved substrate stack surface with predetermined characteristics for forming a semiconductor device on the improved substrate stack surface. The photocathode epitaxial structure further includes an InGaAs p-type photocathode formed on the improved substrate stack surface. The InGaAs p-type photocathode has a predetermined percentage of In.
A radio frequency (RF) communications system may include a first RF node that transmits redundant data channels on different RF spatial paths and transmits a control channel for synchronization lock with at least one other RF node. A second RF node may receive the redundant data channels on the plurality of respective different RF spatial paths that are subject to RF disruption so that a disrupted redundant data channel loses synchronization lock. The second node may reacquire synchronization lock for the disrupted redundant data channel based upon data within another redundant data channel and in a shorter time than reacquiring synchronization lock using the control channel.
A Link 16 terminal. The Link 16 terminal includes a red enclave. The red enclave comprises a Link 16 radio. The Link 16 radio is configured to send commands to Link 16 modems. The commands specify time slots when operations in the commands should be performed by the Link 16 modems. The Link 16 terminal further includes a black enclave physically separated from the red enclave. The black enclave includes a Link 16 modem configured to receive commands from the Link 16 radio. The Link 16 terminal further includes a communication channel configured to facilitate communication between the red enclave and the black enclave. The Link 16 radio is configured to dynamically adjust when commands are sent to the Link 16 modem with respect to time slots specified in the commands based on latency between the Link 16 radio and the Link 16 modem.
Thermal energy transmission from a cryocooler cold finger is enhanced by means of a high thermal conductivity material used for or placed adjacent the cold finger end cap. In addition, the actual or effective surface area contacted by the working gas proximate the endcap is increased, thereby increasing the convective heat transfer coefficient. These features permit the coolest gas expansion space in the cold finger to be provided within the highly thermally conductive end cap, unlike many conventional designs in which the cold finger of low thermally conductive metal forms the expansion space side walls and the endcap forms only the axially facing outer surface in contact with the cooled equipment. Having the expansion space built into the high thermally conductive end cap reduces the temperature drop between the load to be cooled and the gas (e.g., helium), thus increasing the thermodynamic cycle efficiency.
Monitoring rotating machine position using a resolver having an input primary and one or more output secondaries magnetically coupled to the input primary. The method includes exciting the input primary with an exciter input signal, causing a first scaled version of the exciter input signal to appear in a first output secondary. Output from the first output secondary is collected. The collected output from the first output secondary is demodulated to recover gain from the input primary.
G01D 3/02 - Dispositions pour la mesure prévues pour les objets particuliers indiqués dans les sous-groupes du présent groupe avec dispositions pour changer ou corriger la fonction de transfert
H02P 6/18 - Dispositions de circuits pour détecter la position sans éléments séparés pour détecter la position
57.
System and method implementing soft-decision based excision cancellation technology
Systems and methods for mitigating the effect of in-band interference. The methods comprise: receiving a signal comprising at least one interfering signal component; generating a soft value for each symbol in at least one interfering signal component; and using the soft values to cancel at least one interfering signal component from the signal to mitigate the effect of interference. The soft value represents a most likely value for the symbol which is obtained by: determining a probability metric between an actual value of the symbol and each of a plurality of possible symbol values using a scaling value representing an estimate of the noise level in the signal received by the device; generating current local probabilities for the plurality of possible symbol values using the probability metric; and using the current local probabilities to determine the soft value.
A nightvision system includes an underlying device that provides output light in a first spectrum. A transparent optical device transmits light in the first spectrum from the underlying device through the transparent optical device. The transparent optical device includes an active area of a semiconductor chip. The active area includes active elements that cause the underlying device to detect light from the underlying device and transparent regions formed in the active area which are transparent to the light in the first spectrum to allow light in the first spectrum to pass through from the underlying device to a user. An image processor processes feature maps produced using light detected by the first plurality of active elements. The image processor determines at least one of location, heading, elevation, or speed of the nightvision system or location of objects detected by the first plurality of active elements.
A variable width barrel shifter. The variable width barrel shifter includes a first barrel shifter configured to receive a data vector of width M as input. The variable width barrel shifter further includes a second barrel shifter configured to receive the data vector of width M as input. The variable width barrel shifter includes an element-wise multiplexer coupled to the first and second barrel shifters. The element-wise multiplexer is configured to provide a shifted output of the data vector of width M by including a first portion of output from the second barrel shifter and a second portion of output from the first barrel shifter.
G06F 5/01 - Procédés ou dispositions pour la conversion de données, sans modification de l'ordre ou du contenu des données maniées pour le décalage, p. ex. la justification, le changement d'échelle, la normalisation
Signal processing to compensate for gain control output spikes caused by steps in a digital step attenuator. A method includes receiving a changing power input signal at a receiver. The method includes determining that a change in power of the input signal will cause a step attenuator to change its attenuation in a step of a predetermined amount. The method further includes based on determining that the change in power of the input signal will cause a digital step attenuator to change its attenuation in a step of a predetermined amount, causing a variable attenuator to change its attenuation by an amount related to the predetermined amount at a time coinciding with a time when the step attenuator changes its attenuation by the predetermined amount. The method further includes outputting a gain-controlled output signal resulting from applying the step attenuator and the variable attenuator to the changing power input signal.
A nightvision system includes an underlying device that provides output light in a first spectrum. A transparent optical device transmits light in the first spectrum from the underlying device through the transparent optical device. The transparent optical device includes an active area of a semiconductor chip. The active area includes active elements that cause the underlying device to detect light from the underlying device and transparent regions formed in the active area which are transparent to the light in the first spectrum to allow light in the first spectrum to pass through from the underlying device to a user. An image processor processes brightness maps produced using light detected by the first plurality of active elements. A tunable filter array coupled to the image processor filters at least a portion of the input light into the underlying device the underlying device based on brightness map processing.
G09G 3/36 - Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques pour la présentation d'un ensemble de plusieurs caractères, p. ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice en commandant la lumière provenant d'une source indépendante utilisant des cristaux liquides
H01J 23/54 - Dispositifs de filtrage empêchant les fréquences ou les modes indésirables d'être couplés dans ou hors du circuit d'interactionMesures pour empêcher la déperdition haute fréquence dans l'environnement
H01J 31/49 - Tubes capteurs adaptés pour un rayonnement électromagnétique d'entrée autre que la lumière visible et possédant une sortie électrique, p. ex. pour des rayons X ou un rayonnement infrarouge d'entrée
H01J 31/50 - Tubes convertisseurs d'image ou amplificateurs d'image, c.-à-d. comprenant un signal d'entrée optique, à rayons X ou analogue, et un signal de sortie optique
62.
RADIO FREQUENCY SYSTEM INCLUDING RECOMMENDATION TRAINING AGENT FOR MACHINE LEARNING ALGORITHM AND RELATED METHODS
A radio frequency (RF) system may include at least one RF sensor in an RF environment and at least one RF actuator. The RF system may also include at least one processor that includes a machine learning agent configured to use a machine learning algorithm to generate an RF model to operate the at least one RF actuator based upon the at least one RF sensor. The processor may also include a recommendation training agent configured to generate performance data from the machine learning agent, and change the RF environment based upon the performance data so that the machine learning agent updates the machine learning algorithm.
A nightvision system includes an underlying device that provides output light in a first spectrum. A transparent optical device transmits light in the first spectrum from the underlying device through the transparent optical device. The transparent optical device includes an active area of a semiconductor chip. The active area includes active elements that cause the underlying device to detect light from the underlying device and transparent regions formed in the active area which are transparent to the light in the first spectrum to allow light in the first spectrum to pass through from the underlying device to a user. An image processor processes brightness maps produced using light detected by the first plurality of active elements. An illuminator coupled to the image processor inputs light into the underlying device based on image processing performed by the image processor.
0 values for all NOI to select an optimal control channel set. The optimal control channel set is then used by the communication device to transmit the control channel information to the plurality of NOI.
H04L 5/00 - Dispositions destinées à permettre l'usage multiple de la voie de transmission
H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]
H04W 72/541 - Critères d’affectation ou de planification des ressources sans fil sur la base de critères de qualité en utilisant le niveau d’interférence
Vector modulation is illustrated. A method includes receiving an input signal. The input signal is split into a first 0° output and a 90° output. The first 0° output is split into a second 0° output and a first 180° output using a continuous transmission line. The 90° output is split into a third 0° output and a second 180° output using a continuous transmission line. The second 0° output, the first 180° output, the third 0° output, and the second 180° output are modulated. The modulated second 0° output, the first 180° output, the third 0° output, and the second 180° output are recombined to produce an output signal, where all four of the modulated second 0° output, the first 180° output, the third 0° output, and the second 180° output are used to create the output signal.
Aspects of the present disclosure relate generally to night-vision systems and more specifically to an integrated micro-display module with a flex circuit. One example illustrated herein includes a method of upgrading a night-vision system. The method may include attaching a flex circuit to an intensifier module, in which the flex circuit includes one or more light detectors and extending beyond a leading edge of the intensifier module. The method may include inserting the intensifier module into a housing and folding the flex circuit to expose the one or more light detectors. The method may further include optically coupling a display unit to an output side of an intensifier module of the night vision system. The display unit may be configured to display graphical content in a field of view together with night-vision images from an output of the intensifier module of the night-vision system.
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
Processing signals is disclosed. A method includes receiving a signal transmission with a nb/mb encoding scheme that maps n-bit words to m-bit symbols. In this scheme, m>n. The method further includes, for a first payload data word in the transmission, determining that the first payload data word corresponds to a valid payload data word, and as a result, assigning a first reliability metric to bits in the first payload data word. The method further includes for a second payload data word in the transmission, determining that the second payload data word does not correspond to a valid payload data word, and as a result, assigning a second reliability metric to bits in the second payload data word. The method further includes performing signal decoding using the assigned reliability metrics.
H04B 10/00 - Systèmes de transmission utilisant des ondes électromagnétiques autres que les ondes hertziennes, p. ex. les infrarouges, la lumière visible ou ultraviolette, ou utilisant des radiations corpusculaires, p. ex. les communications quantiques
H04B 10/079 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal en service utilisant des mesures du signal de données
H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
H04B 10/114 - Systèmes d’intérieur ou à courte portée
68.
Cellular automaton for use in long-range acoustic networks
Techniques of present disclosure are directed to methods of providing acoustic communication networks. For example, methods are provided for that include obtaining, at a first transceiver of a plurality of transceivers arranged within an installation pattern, a first acoustic signal provided by a second transceiver of the plurality of transceivers. A location of the first transceiver within a message distribution pattern is determined from the acoustic signal. A delay based upon the location of the first transceiver within the message distribution pattern is determined. Finally, a second acoustic signal corresponding to the first acoustic signal is provided from the first transceiver after the delay.
H04B 11/00 - Systèmes de transmission utilisant des ondes ultrasonores, sonores ou infrasonores
H04B 13/02 - Systèmes de transmission dans lesquels le milieu de propagation est constitué par la terre ou une grande masse d'eau la recouvrant, p. ex. télégraphie par le sol
Systems and methods for operating a motorized system. The methods comprise by a circuit: receiving a first position signal generated by a gimbal resolver coupled to a load, a second position signal generated by a first motor encoder coupled to a shaft of a first motor, and a third position signal generated by a second motor encoder coupled to a shaft of a second motor; converting the second and third position signals into a velocity signal specifying a scaled velocity of the load; converting the velocity signal into a fourth position signal specifying a position of the load; combining the first position signal and the fourth position signal to generate a fifth position signal representing a stable position of the load; and using the fifth position signal to control operations of the first and second motors.
H02P 5/50 - Dispositions spécialement adaptées à la régulation ou la commande de la vitesse ou du couple d’au moins deux moteurs électriques pour la régulation de vitesse de plusieurs moteurs dynamo-électriques en relation les uns avec les autres par comparaison de grandeurs électriques représentant les vitesses
H02P 21/18 - Estimation de la position ou de la vitesse
70.
Electronic device and cooling device with fan blade and related method
An electronic device may include an electronic circuit, a heat sink thermally coupled to the electronic circuit, and spaced apart cooling fins extending from the heat sink. Each cooling fin includes a circuit board and a cooling device mounted thereon. The cooling device may have a conductive trace layer on the circuit board defining an electromagnet, a mounting member extending upwardly from the circuit board, a fan blade coupled to an upper end of the mounting member to be movable in a rocking motion about an axis defined by the mounting member, and a permanent magnet carried by the fan blade and responsive to the electromagnet.
F28F 13/10 - Dispositions pour modifier le transfert de chaleur, p. ex. accroissement, diminution en affectant le mode d'écoulement des sources de potentiel calorifique en communiquant un mouvement pulsatoire à l'écoulement, p. ex. par vibration acoustique
H01F 7/13 - Électro-aimantsActionneurs comportant des électro-aimants avec armatures caractérisés par la caractéristique de force d'attraction
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
H05K 7/20 - Modifications en vue de faciliter la réfrigération, l'aération ou le chauffage
A system that includes a driving component, such as a motor, and a driven component. The system also includes a torque limiter positioned between the driving component and the driven component. The driving component is coupled to a driving end of the torque limiter and the driven component is coupled to a driven end of the torque limiter. The torque limiter is configured to assume a normal operating state with no slippage between the driving and driven ends of the torque limiter and an over-torque operating state with slippage occurring between the driving and driven ends of the torque limiter. The torque limiter includes a metal moving part that assumes a first position when the torque limiter is in the normal operating state and a second position different than the first position when the torque limiter assumes the over-torque operating state. An inductive proximity sensor monitors the position of the metal moving part.
G01L 5/00 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques
G01L 5/24 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour déterminer la valeur du couple ou du moment de torsion pour le serrage d'un écrou ou d'un autre organe soumis à une contrainte analogue
72.
METHODS OF TRAINING VARIATIONAL AUTOENCODERS TO RECOGNIZE ANOMALOUS DATA IN DISTRIBUTED SYSTEMS
Methods of training a variational autoencoder (VAE) to recognize anomalous data in a distributed system are provided. Input image data representative of devices/processes in a distributed system are provided to an encoder of a VAE on a processor. The input image data is compressed, via the processor, using a first plurality of weights with the encoder. A normal distribution of the compressed image data is created in a latent space of the VAE. The compressed image data from the latent space is decompressed using a second plurality of weights with a decoder of the VAE. The decompressed image data from the decoder is optimized. At least the first and second plurality of weights are updated, via the processor, based on the loss detected in the optimized decompressed image data. The above steps are iterated until the decompressed image data possesses substantially the same statistical properties as the input image data.
G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
73.
Tactical/legacy waveform obfuscation through independent spreading overlay
Communicating using spread spectrum. A legacy RF signal is intercepted from a legacy radio. Spread spectrum processing is performed on the legacy RF signal to create a spread signal. The spread signal is transmitted to a receiver, whereafter the spread signal is de-spread to recover the legacy RF signal.
A device, system, and/or method may be used to provide an adaptive alignment. A first video data may be received. The first video data may comprise a first video frame and a second video frame. Sensor pose data may be determined. The pose data may be associated with the first video frame and the second video frame. An adjusted video frame may be determined based on the first video frame and a motion indicated by the pose data. A frame adjustment value may be determined by comparing a first pixel from the adjusted video frame to a second pixel from the second video frame. The frame adjustment value may correlate the pose data to the first video data. A second video data may be determined by applying the frame adjustment value.
An optical resonator may be provided. The optical resonator may comprise a laser system with an adjustable optical path length. The optical resonator may include a back mirror. The back mirror may include a first back mirror surface and a second back mirror surface. The first back mirror surface and may provide a first optical path length for the optical resonator if the first back mirror surface may be included in the optical path. The second back mirror may provide a second optical path length for the optical resonator if the second back mirror surface is included in the optical path.
H01S 3/08 - Structure ou forme des résonateurs optiques ou de leurs composants
H01S 3/105 - Commande de l'intensité, de la fréquence, de la phase, de la polarisation ou de la direction du rayonnement, p. ex. commutation, ouverture de porte, modulation ou démodulation par commande de la position relative ou des propriétés réfléchissantes des réflecteurs de la cavité
76.
Systems and methods of aviation data communication anomaly detection, as in air traffic control surveillance systems
Systems and methods for detecting anomalies in aviation data communication systems (e.g., air traffic control surveillance systems), include a processor receiving device status information. A variational autoencoder receives and optimizes the device status information and determines whether it qualifies as an anomaly. Optimized device status information is compared to either non-anomalous or anomalous device status data in a latent space of the variational autoencoder. The latent space preferably includes an n-D point scatter plot and hidden vector values. The processor optimizes the device status information by generating a plurality of probabilistic models of the device status information and determining which of the plurality of models is optimal. A game theoretic optimization is applied to the plurality of models, and the best model is used to generate the n-D point scatter plot in latent space. An image gradient sobel edge detector preprocesses the device status information prior to optimization.
G06V 10/26 - Segmentation de formes dans le champ d’imageDécoupage ou fusion d’éléments d’image visant à établir la région de motif, p. ex. techniques de regroupementDétection d’occlusion
G06V 10/44 - Extraction de caractéristiques locales par analyse des parties du motif, p. ex. par détection d’arêtes, de contours, de boucles, d’angles, de barres ou d’intersectionsAnalyse de connectivité, p. ex. de composantes connectées
G06V 10/46 - Descripteurs pour la forme, descripteurs liés au contour ou aux points, p. ex. transformation de caractéristiques visuelles invariante à l’échelle [SIFT] ou sacs de mots [BoW]Caractéristiques régionales saillantes
Network security anomaly detection systems and methods include a processor, in communication with the network, receiving network device status information. A variational autoencoder receives the device status information, optimizes the device status information, and determines whether the device status information qualifies as an anomaly. Optimized device status information is compared to either non-anomalous or anomalous device status data in a latent space of the variational autoencoder. The latent space preferably includes an n-D point scatter plot and hidden vector values. The processor optimizes the device status information by generating a plurality of probabilistic models of the device status information and determining which of the plurality of models is optimal. A game theoretic optimization is applied to the plurality of models, and the best model is used to generate the n-D point scatter plot in latent space. An image gradient sobel edge detector preprocesses the device status information prior to optimization.
G06F 21/00 - Dispositions de sécurité pour protéger les calculateurs, leurs composants, les programmes ou les données contre une activité non autorisée
G06N 7/01 - Modèles graphiques probabilistes, p. ex. réseaux probabilistes
Provided for herein are systems, methods, apparatus and software configured synchronize clocks across two or more processing devices. The techniques of the present disclosure include: obtaining, at a processing device, indications of clocks, wherein the indications comprise an indication for a clock for each of a plurality of processing devices; determining, from the indications, whether a clock of the processing device leads or lags a majority of clocks of the plurality of processing devices; and adjusting the clock of the processing device in a direction of the majority of the clocks of the plurality of processing devices.
A Radio Frequency (RF) receiver may include a lower-order phase shift keying (PSK) demodulation circuit configured to generate at least one locking parameter when performing a lower-order PSK demodulation of an RF receive signal having an interfering PSK signal component. A higher-order PSK demodulation circuit has a higher order than the lower-order PSK demodulation circuit, and locks to the RF receive signal using the at least one locking parameter from the lower-order PSK demodulation circuit. The higher-order PSK demodulation circuit performs the higher-order PSK demodulation of the RF receive signal based upon locking to the RF receive signal to determine the interfering PSK signal component.
Systems and methods for synchronize word correlation. The methods comprise: obtaining first values that each indicate a likelihood or probability that a respective timeslot in a symbol timing window of a carrier wave is meant or expected to include energy; multiplying, by the correlator, the first values respectively by correlation coefficients to produce a plurality of products (wherein at least one of the correlation coefficients comprises a negative coefficient value); generating a correlation value by combining the products together; determining whether a synchronization word has been detected with a given amount of likelihood based on the correlation value; and causing symbol timing synchronization at a receiver when a determination is made that the synchronization word has been detected with the given amount of likelihood based on the correlation value.
One example illustrated herein includes an optical device including a bridge assembly configured to connect two or more monocular tube assemblies and at least two monocular tube assemblies. Each monocular tube assembly includes a housing, an alignment member attached to the housing, the alignment member providing an indication of an optical axis of the monocular tube assembly, and an interface component that links the housing to the bridge assembly, the interface component comprising an adjustment mechanism that enables adjustment of the monocular tube assembly relative to the bridge assembly, such that the adjustment mechanism can be used in conjunction with the alignment member to align different optical axes. Aspects of the present disclosure may be implemented to allow for field-alignment of the optical device.
H04N 13/344 - Affichage pour le visionnement à l’aide de lunettes spéciales ou de visiocasques avec des visiocasques portant des affichages gauche et droit
A radio frequency (RF) communication system may include a first radio and a second radio being relatively movable. The first radio may include an RF transceiver configured to operate on a selected RF channel from among a plurality of different RF channels, and a controller coupled to the RF transceiver. The controller may be configured to obtain historical RF spectral data over time, position and RF channel, as the first and second radios move relative to one another, determine at least one power null from the historical RF spectral data, and dynamically select an RF channel from among the plurality thereof based upon the at least one power null.
A circuit to rectify an alternating current (AC) signal produced by an output coil of a transformer responsive to an input current in an input coil of the transformer comprises: an output node and a return node coupled to an output load; a first rectifier, coupled to a first terminal of the output coil and the return node, to rectify the AC signal to supply a current to the output node when the input current is ON; a second rectifier, coupled to a second terminal of the output coil and the return node, to rectify the AC signal to supply a current to the output node when the input current is OFF; and a voltage clamp to clamp a first voltage transient and a second voltage transient of the AC signal that occur at the first terminal and the second terminal when the input current is switched OFF and ON.
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 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité 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
H03K 17/0814 - Modifications pour protéger le circuit de commutation contre la surintensité ou la surtension sans réaction du circuit de sortie vers le circuit de commande par des dispositions prises dans le circuit de sortie
84.
Semi-transparent detector array for UV/near-UV detection
An apparatus and method are provided for a night vision system that integrates functions of detecting an intensified image and transmitting the intensified image superimposed with a heads-up display. The night vision system includes an optical device having a transparent display configured with pixels emitting display light (i.e., the heads-up display), and the transparent display has transmission regions arranged among the pixels for transmitting light representing an intensified image (e.g., luminescent light from a phosphor screen). Light rays passing through the transmission regions also pass through detectors, which detect light outside of the visible spectrum (e.g., UV light). By detecting light outside of the visible spectrum, the detectors detect the intensified image without degrading the image in the visible spectrum that is provided to users.
H10K 59/65 - OLED intégrées avec des capteurs d'images inorganiques
G01J 3/44 - Spectrométrie RamanSpectrométrie par diffusion
G02B 13/16 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous à utiliser en combinaison avec des convertisseurs ou des amplificateurs d'image
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H01J 31/12 - Tubes reproducteurs d'images ou de dessins, c.-à-d. comprenant un signal d'entrée électrique et un signal de sortie optiqueTubes analyseurs à spot mobile à écran luminescent
H01J 31/50 - Tubes convertisseurs d'image ou amplificateurs d'image, c.-à-d. comprenant un signal d'entrée optique, à rayons X ou analogue, et un signal de sortie optique
H10K 65/00 - Dispositifs intégrés, ou ensembles de plusieurs dispositifs, comprenant au moins un élément organique émetteur de lumière et au moins un composant organique sensible aux rayonnements, p. ex. des optocoupleurs organiques
An apparatus and method are provided for a night vision system including a transparent overlay display that transmit direct-view light representing an intensified image and emits display light representing a display image. The transparent overlay display is a borderless display in which the active area extends to at least one edge of the display. Data-handling circuitry is arranged within the active area, rather than being arranged along a border of the display. The data-handling circuitry may be fabricated in the active area of the display by fabricating it below opaque pixel regions that generate the display light. This borderless configuration allows partial overlap with the intensified image by eliminating opaque borders in which the data-handling circuitry is fabricated. This borderless configuration helps to minimize size, weight, and power by reducing the size of the display and eliminating the need for bulky beam splitters.
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H01L 27/32 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des composants qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux avec des composants spécialement adaptés pour l'émission de lumière, p.ex. panneaux d'affichage plats utilisant des diodes émettrices de lumière organiques
86.
Apparatus and method for simplifying a control interface of a night vision system using bi-directional detector/display overlay
An apparatus and method are provided for a night vision system including a transparent overlay display that transmit direct-view light representing an intensified image and emits display light representing a display image. To reduce the communication bandwidth with an external controller, a frame buffer is provided to locally update pixel values of the display image, at a first frame rate. Because many pixel values remain unchanged from frame to frame, an external controller may change the pixel values stored in the frame buffer as needed, reducing the amount of information that is needed from the external controller to control the display image. Additionally, to reduce the communication bandwidth the display information may be communicated from the external controller using a high-level language. Further, some of the display information may be determined using a local processor, rather than relying on the external controller for the display information.
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
87.
Multipoint relay (MPR) network and related methods
A multipoint relay (MPR) wireless network may include spaced apart nodes, with each node including wireless transceiver circuitry, beacon circuitry, and a controller coupled to the wireless transceiver circuitry and beacon circuitry. The controllers may be configured to operate the beacon circuitry to determine a respective link strength metric for each potential link between nodes, assign a set of nodes from among the plurality of nodes to function as gateway nodes and assign other individual nodes to communicate via respective gateway nodes based upon the respective link strength metrics to define the MPR network so that one-hop links have a strongest link strength metric, and operate the wireless transceiver circuitry for communications over the MPR network.
H04W 40/12 - Sélection d'itinéraire ou de voie de communication, p. ex. routage basé sur l'énergie disponible ou le chemin le plus court sur la base de la qualité d'émission ou de la qualité des canaux
An apparatus and method are provided for a night vision system including a transparent overlay display that transmit direct-view light representing an intensified image and emits display light representing a display image. The overlay display includes photodetectors arranged to detect an intensity of the incoming direct-view light, and an intensity of the display light depends on the detected intensity. In some embodiments, the intensity of the display light is spatially modulated using an amplitude or envelope of the intensity that is based on the detected local intensity of the direct-view light. In some embodiments, the intensity of the display light is adjusted to correct for loss of the direct-view light. The intensity of the display light may be controlled using control circuitry that receives signals from the photodetectors, and the control circuitry may be located on the same semiconductor chip as the overlay display.
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H10K 59/13 - Affichages à OLED à matrice active [AMOLED] comprenant des photocapteurs qui commandent la luminance
89.
Apparatus and method for a vision system having a transparent display and a diffractive, planar lens
An apparatus and method are provided for a night vision system including a transparent overlay display that transmit direct-view light representing an intensified image and emits display light representing a display image. The night vision system includes an intensifier with a flat exit face, an overlay display that is flat/planar, and planar, diffractive lens. The direct-view light and the display light exit the overlay display with the same phase curvature (e.g., a flat phase curvature). The planar, diffractive lens induces a spherical phase curvature on the light exiting the overlay display. The phase curvature induced by the planar, diffractive lens matches the phase curvature of a legacy intensifier in which the final element is fiberoptic inverting element with a curved exit face. Accordingly, the combination of the intensifier, overlay display, and planar, diffractive lens can replace the legacy intensifier while maintaining the design specifications of the night vision system.
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
G02B 3/08 - Lentilles simples ou composées à surfaces non sphériques à surfaces discontinues, p. ex. lentille de Fresnel
G02B 13/16 - Objectifs optiques spécialement conçus pour les emplois spécifiés ci-dessous à utiliser en combinaison avec des convertisseurs ou des amplificateurs d'image
Clock recovery from a serial data signal involves using a serializer/deserializer (SERDES) to produce a clock signal which periodically alternates between high and low output clock values. These high and low clock values are generated by outputting for each clock period a series of N digital bits including a plurality of low-level bits to form each low output clock value and a plurality of high-level bits to form each high output clock value. A sync pulse obtained from a sync word present in each frame of the serial data signal is used to periodically determine a frequency error of the clock signal. The frequency error is used as a basis to change a phase of the adjusted clock signal responsive to the frequency error.
A method for mitigating interference in a frequency hopping channel system based on codeword metrics obtained during decoding of codewords. The method includes decoding a plurality of codewords using a particular error control coding method. Each of the plurality of codewords includes portions received from plurality of channels in the frequency hopping channel system. For each decoded codeword, one or more codeword metrics are obtained based on the cost of correcting errors during decoding of the plurality of codewords. Based on the codeword metrics, one or more channel metrics are inferred. Based on the inferred one or more channel metrics, a reliability metric of a particular channel is reduced, or incoming symbols received from the particular channel are ignored during decoding.
One embodiment illustrated herein includes an optical device. The optical device includes a stacked device, formed in a single semiconductor chip, configured to be coupled in an overlapping fashion to an underlying device. The stacked device includes a plurality of optical output pixels. Each of the output pixels includes a plurality of subpixels. Each subpixel is configured to output a color of light. Each pixel is configured to output a plurality of colors of light. The optical device further includes one or more detectors, configured to detect light, interleaved with the subpixels of the pixels. The stacked device comprises a plurality of transparent regions formed in the stacked device between the pixels. The plurality of transparent regions are transparent, according to a first transmission efficiency, to light in a first spectrum. The underlying device emits light in the first spectrum.
H10K 59/131 - Interconnexions, p. ex. lignes de câblage ou bornes
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H10K 59/65 - OLED intégrées avec des capteurs d'images inorganiques
H10K 77/10 - Substrats, p. ex. substrats flexibles
H10K 71/00 - Fabrication ou traitement spécialement adaptés aux dispositifs organiques couverts par la présente sous-classe
H10K 59/12 - Affichages à OLED à matrice active [AMOLED]
H10K 59/35 - Dispositifs spécialement adaptés à l'émission de lumière multicolore comprenant des sous-pixels rouge-vert-bleu [RVB]
93.
Auto-alignment of multi-sensor overlay using bi-directional detector/display
An optical device includes an underlying device configured output light to an optical output to output an image of objects in an environment to a user. The light is output in a first spectrum. A stacked device is configured to be coupled in an overlapping fashion to an optical output of the underlying device. The stacked device is transparent, according to a first transmission efficiency, to light in the first spectrum. The stacked device includes a plurality of electro-optical circuits including: a plurality of light emitters configured to output light, and a plurality of detectors configured to detect light in the first spectrum from the underlying device that can be used to detect the objects in the image. The light emitters are configured to output light dependent on light detected by the detectors and additional information about characteristics of the objects in the environment.
H04N 23/11 - Caméras ou modules de caméras comprenant des capteurs d'images électroniquesLeur commande pour générer des signaux d'image à partir de différentes longueurs d'onde pour générer des signaux d'image à partir de longueurs d'onde de lumière visible et infrarouge
F41G 1/32 - Appareils de visée de nuit, p. ex. luminescents
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H04N 23/70 - Circuits de compensation de la variation de luminosité dans la scène
94.
Communications security architecture implementing a service negotiation plane channel
A cross-network communication system includes a plurality of client networks. The cross-network communication system includes a Service Negotiation Plane configured to forward messages between the plurality of client networks via a plurality of control interfaces, each of which corresponds to one of the plurality of client networks. Each of the plurality of control interfaces includes a first data guard that belongs to the corresponding client network. The first data guard is configured to prevent exfiltration of classified information or permit only particular types of messages to traverse the Service Negotiation Plane.
An optical device includes an underlying device configured to output light in a first spectrum. A stacked device is coupled to the underlying device and configured to be coupled in overlapping fashion to an optical output of the underlying device. The stacked device is transparent to light in the first spectrum. The stacked device includes electro-optical circuits including: light emitters and detectors. Each detector is associated with one or more light emitters. Each detector is configured to detect light emitted from the underlying device. The light emitters are configured to output light dependent on light detected by an associated detector. Optical filters are optically coupled to an optical input of the underlying device. Each filter is aligned with a detector to suppress absorption of certain wavelengths of light by the underlying device thereby affecting light detected by the detectors and thus further affecting the light output by the light emitters.
H04N 5/238 - Circuits pour la compensation des variations de la luminance de l'objet en agissant sur la partie optique de la caméra
G02B 23/12 - Télescopes ou lunettes d'approche, p. ex. jumellesPériscopesInstruments pour voir à l'intérieur de corps creuxViseursPointage optique ou appareils de visée avec des moyens pour renverser ou intensifier l'image
H04N 23/71 - Circuits d'évaluation de la variation de luminosité
H04N 23/56 - Caméras ou modules de caméras comprenant des capteurs d'images électroniquesLeur commande munis de moyens d'éclairage
H04N 23/57 - Détails mécaniques ou électriques de caméras ou de modules de caméras spécialement adaptés pour être intégrés dans d'autres dispositifs
H04N 23/75 - Circuits de compensation de la variation de luminosité dans la scène en agissant sur la partie optique de la caméra
H10K 59/60 - OLED intégrées avec des éléments inorganiques sensibles à la lumière, p. ex. avec des cellules solaires inorganiques ou des photodiodes inorganiques
96.
Estimation of Target Location and Sensor Misalignment Angles
Data indicative of a line of sight to a target is obtained from a sensor mounted on an aircraft. Data indicative of an orientation of the aircraft relative to the Earth is obtained from a navigation system associated with the aircraft. An expression is generated that couples a first variable indicative of misalignment of an orientation of the sensor and the orientation of the aircraft and a second variable indicative of the location of the target relative to the Earth. The first variable and second variable are determined using the data indicative of the line of sight from the sensor to the target and the expression coupling the first variable and the second variable. The misalignment of the orientation of the sensor and the orientation of the aircraft is compensated for using the first variable. The location of the target relative to the Earth is determined using the second variable.
A system for remotely monitoring a depletion state of a sacrificial anode. The system includes a light emitter that is configured to emit a light beam and an optical receiver positioned to receive the light beam. A sacrificial anode is located between the light emitter and the optical receiver in a pathway of the light beam, the sacrificial anode being electrically coupled to a metallic structure for the purpose of minimizing corrosion of the metallic structure. Absent a presence of the sacrificial anode in the pathway of the light beam, the optical receiver is configured to receive the light beam, and in response to receiving the light beam, to generate an electrical signal indicative of the depletion state of the sacrificial anode.
Methods and systems for non-contact temperature measurement of an object on which is attached or etched a diffraction grating. The diffraction grating expands and contracts as the object expands and contracts upon there being a change in temperature of the object. Upon a light beam being received on the diffraction grating, the diffraction grating produces a pair of complementary light beams and one of the light beams is reflected back onto the diffraction grating and then onto the other light beam in a manner that causes the reflected light beam to propagate alongside and non-parallel to the other light beam. The resultant two light beams are thereafter impinged onto a camera at respective first and second impingement locations. The temperature of the object is then determined based on the separation distance between the first and second impingement locations.
G01K 5/50 - Mesure de la température basée sur la dilatation ou la contraction d'un matériau le matériau étant un solide agencé pour se dilater ou se contracter librement
G01B 11/16 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer la déformation dans un solide, p. ex. indicateur optique de déformation
G01K 1/024 - Moyens d’indication ou d’enregistrement spécialement adaptés aux thermomètres pour l’indication à distance
G01K 5/48 - Mesure de la température basée sur la dilatation ou la contraction d'un matériau le matériau étant un solide
G01K 11/12 - Mesure de la température basée sur les variations physiques ou chimiques, n'entrant pas dans les groupes , , ou utilisant le changement de couleur, de translucidité ou de réflectance
G02B 27/09 - Mise en forme du faisceau, p. ex. changement de la section transversale, non prévue ailleurs
99.
Systems and methods for decentralized link performance
Systems and methods for evaluating link performance over a multitude of frequencies for Signal-to-Noise Ratio (SNR) optimization and mitigating interference. The methods comprise: communicating, from a first communication device, a first signal over a given channel in a given frequency band; receiving, by the first communication device, spectral power measurements and a Signal-to-Total Power Ratio (STPR) estimate determined based on a second signal including the first signal combined with at least one of noise and one or more interference signals (the STPR estimate accounts for the receiver performance including chip rate processing gain and/or the performance of an interference cancellation circuit used to remove the interference signals from the second signal); and determining, by the first communication device, a predicted Signal-to-Noise Ratio (SNR) condition for a plurality of frequencies within the given frequency band using the STPR estimate and the spectral power measurements.
An optical system has an underlying device configured to provide output light. A transparent optical device optically coupled to the underlying device transmits light from the underlying device through the transparent optical device to display a scene. The transparent optical device includes detector elements formed in an active area to detect light portraying at least a portion of the scene. The underlying device has transparent regions formed in the active area to allow light to pass through from the underlying device to a user. The optical system further includes an image processor that processes images produced using light detected by the detector elements to identify a specific instance of light in the scene. The image processor causes display elements in the active area of the transparent optical device to display an indicator, in the scene, correlated to the specific instance of light.
