Systems and methods efficiently process digests, hashes or other results by performing multiplicative functions in parallel with each other. In various embodiments, successive processing stages are provided for calculating a plurality of powers of the common value, processing each of a plurality of pairs of first and second elements of the input values, wherein the processing comprises multiplying the first elements of the input values by the common value and combining the products with second elements of the input values, performing additional processing using the plurality of processed pairs as the subsequent set of input values and using a power of the common value, multiplying each of the processed pairs with one of the plurality of powers of the common value to generate a set of output values, accumulating the set of output values, and providing the digest as a function of the set of output values.
H04L 9/06 - Arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems
2.
QUANTUM PROBABILITY ENCODING FOR PATH IDENTIFICATION, QUANTUM RELAYS AND FASTER DATA RATES
The quantum relay and quantum signal source exploit quantum properties of photon streams. A pair of spatially separated and polarization-entangled photon streams is used. The pair collectively exist in a quantum superposition state by virtue of their mutual entanglement. In the relay, an encoder establishes a modulation control signal corresponding to the information to be conveyed. An optical quantum circuit is placed in the path of one of the pair of streams, so that the first stream passes through it. The optical quantum circuit alters the quantum polarization state of the photon passing through it based on the control signal. In this way information is encoded into quantum probability distributions of the superposition state through quantum parallelism and quantum interference, whereby information is conveyed in the photon streams. In the signal source a second information source is used to modulate the other of the pair of streams, thus enhancing the information density of the system, by encoding both in the probability distribution and in the correlation of the photon arrival times.
The quantum communication system conveys information by exploiting quantum properties of photon streams. A photon source producing a pair of spatially separated and polarization-entangled photon streams is used. The pair collectively exist in a quantum superposition state by virtue of their mutual entanglement. An encoder establishes a modulation control signal corresponding to the information to be conveyed. An optical quantum circuit is placed in the path of one of the pair of streams, so that the first stream passes through it. The optical quantum circuit alters the quantum polarization state of the photon passing through it based on the control signal. In this way information is encoded into quantum probability distributions of the superposition state through quantum parallelism and quantum interference, whereby information is conveyed in the photon streams.
H04B 10/00 - Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
H04B 10/079 - Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
A configurable antenna for a software defined radio including a first antenna unit having a first antenna element for receiving a first electromagnetic signal in a first frequency band wherein the first frequency band corresponds to a first mode of operation of a software defined radio, an interface unit having a first connector to couple the first electromagnetic signal from the first antenna unit and a second connector to couple the first electromagnetic signal to the software defined radio, an enclosure configured to receive the interface unit within an internal cavity, and a retention bracket configured to mechanically retain the interface unit within the enclosure, the retention bracket having at least one hole for allowing the first connector to conductively contact the antenna unit.
Arizona Board of Regents of the University of Arizona (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Zhang, Zheshen
Zhuang, Quntao
Clark, William
Abstract
A reconfigurable sensor network uses continuous-variable (CV) multipartite entangled quantum states for distributed RF sensing with uncertainties below the standard quantum limit. A CV multipartite entangled state is generated with a quantum circuit that splits a squeezed vacuum state into spatially separated optical modes that are entangled. Each optical mode is transmitted to a RF-photonic sensor that imposes, on the corresponding optical mode, a quadrature displacement based on the local properties of an RF signal. A homodyne detector then measures the quadrature displacement. A post-processor combines the measurements to estimate a global property of the RF signal, such as an angle-of-arrival. To enable distributed sensing over large distances, the RF-photonic sensors may be spatially separated by several kilometers, or more. Alternatively, the RF-photonic sensors may be integrated into a single photonic system, such as a photonic integrated circuit.
G01S 3/04 - Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves - Details
Systems and methods are provided for generating solutions to decision analysis problems. The systems include a processor configured to: receive input data relating to a decision analysis problem, the input data including various parameters, wherein one or more of the parameters are in conflict, generate a plurality of the solutions based on the input data, wherein each of the plurality of solutions are from distinct homotopy classes, approximate a Pareto front using a multi-objective evolutionary algorithm, the Pareto front representing a collection of the plurality of the solutions that are not inferior to others of the plurality of the solutions in view of an entirety of the parameters in the input data, generate a course of action (COA) menu presenting solution architypes based on the Pareto front using a topological clustering algorithm, and display the COA menu on a visual display device.
A communications system including a transmit processor for determining transmit and azimuth elevation in response to a refractive layer altitude, a transmitter array including a plurality of transmitters each for transmitting one of a plurality of transmitted signals in response to the transmit elevation wherein each of the plurality of transmitted signals is encoded using a data signal and one of a plurality of unique synchronization sequences, and a receiver for receiving the plurality of transmitted signals, isolating each of the plurality of transmitted signals in response to one of the plurality of unique synchronization sequences corresponding to each of the plurality of transmitted signals to generate a plurality of isolated signals, to combine the plurality of isolated signals to generate a combined signal and to generate the data signal in response to the combined signal.
The dual frequency antenna element has electromagnetically resonant structure with plural attached current conductors each communicating on a different frequency band and producing a circularly polarized radiation pattern with respect to a propagation direction. A pattern shaper element fashioned using first and second conductive discs is positioned within the radiation pattern in alignment with the propagation direction. The discs are secured in a first spaced relation to each other and in a second spaced relation to the dual frequency antenna element. The respective disc surface areas, and the first and second spaced relations are cooperatively configured to passively modify the radiation pattern of the dual frequency antenna element to produce dual frequency band coverage of approximately 60 degrees centered about the longitudinal axis while substantially blocking coverage at 90 degrees to the longitudinal axis.
A computing device including a first processor configured for generating a directory structure in response to a metadata associated with a software, retrieving an update file, performing the software update on a test system, and verifying the software update. A memory configured for storing the software update in the directory structure. A second processor configured for confirming the validity of the software update, performing the software update on a secure computing system in response to a positive confirmation of the validity of the software update and generating an indication of an update of the secure computing system. A display configured to display the directory structure and the indication of the update of the secure computing system.
G06F 21/57 - Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
10.
Doppler tracking for signals of opportunity using rate-line detection
An electromagnetic transmission carrying a bauded signal, such as a transmission from an orbiting satellite, is processed for Doppler shift analysis. The electromagnetic transmission is captured and a non-linear operation is performed to expose a cyclostationary feature of the captured transmission that defines a rate-line having a rate-line frequency that is related to the bauded signal and to the motion of the transmitter relative to the receiver. The rate-line frequency is tracked in time to generate data indicative of Doppler shift associated with the satellite. The data are then supplied to a tracking receiver.
G01S 5/10 - Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements
G01S 19/25 - Acquisition or tracking of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
G01S 19/07 - Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
G01S 19/29 - Acquisition or tracking of signals transmitted by the system carrier related
G01S 19/41 - Differential correction, e.g. DGPS [differential GPS]
G01S 19/40 - Correcting position, velocity or attitude
11.
DOPPLER TRACKING FOR SIGNALS OF OPPORTUNITY USING RATE-LINE DETECTION
The receiver captures an electromagnetic transmission carrying a bauded signal, such as a transmission from an orbiting satellite, and processes it for Doppler shift analysis. The electromagnetic transmission is captured and a non-linear operation is performed to expose a cyclostationary feature of the captured transmission that will define a rate-line. This rate-line will exist at a frequency that is related to the bauded signal and Doppler shift relative to the motion of the transmitter to the receiver. The rate-line frequency is tracked in time to generate data indicative of a Doppler shift associated with the satellite and processed by an estimator fed by satellite propagator to supply positioning, navigation and timing services at the receiver output.
G01S 7/481 - Constructional features, e.g. arrangements of optical elements
G01S 19/39 - Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
Transmitting a data signal employing a digital beamforming technique including determining a first phase offset in response to a first transmitted signal received at a first antenna and a second phase offset in response to a second transmitted signal received at the first antenna, determining a third phase offset in response to the first transmitted signal received at a second antenna and a fourth phase offset in response to the second transmitted signal received at the second antenna, generating a first correction weight in response to an average of the first phase offset and the third phase offset, generating a second correction weight in response to an average of the second phase offset and the fourth phase offset, and transmitting the first correction weight to the first transmitter and the second correction weight to the second transmitter.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
13.
Tunable wavelength-selective fiber optic switch employing moveable grating interaction with the evanescent field of a partially-cladding-removed fiber
In the wavelength selective fiber optic switch, an optical fiber with a portion of cladding removed defines a window facilitating access to the radially evanescent field present when optical power is propagating through the optical fiber, defining a first transmission path. The cladding removed optical fiber, a secondary optical waveguide, and a grating structure form a grating assisted coupler. An adjustable positioning fixture changes the relative spacing of the fiber core, grating, and output waveguide between a decoupled position and a coupled position. The switch operates, in the decoupled position, to allow optical power to propagate unperturbed through the first transmission path, including optical power at said optical wavelength, and in the coupled position, to extract and reroute optical power at the optical wavelength to propagate through the second transmission path, while leaving unperturbed other wavelengths propagating through the first transmission path. A tuning mechanism is implemented that alters the periodic properties of the grating to tune to a desired optical wavelength.
Cladding removed from a portion of the optical fiber defines a window exposing the fiber core. A grating having a substantially periodic structure defining a wavelength is moveably positioned in the window, where it can interact with the evanescent field present in the window when optical power is propagating through the fiber. An adjustable positioning fixture holds the grating proximate to the window and operates to change the relative spacing of the fiber core and grating, between: a first position in which the grating is held proximate to the fiber core and substantially interacts with the evanescent field, and a second position in which the grating is held apart from the fiber core and does not substantially interact with the evanescent field.
Transmitting a data signal by generating a first symbol in response to the data signal and a first synchronization sequence and a second symbol in response to the data signal and a second synchronization sequence, applying a distributed coding matrix to the first symbol and the second symbol to generate a first transmission signal and a second transmission signal, transmitting the first transmission signal and the second transmission signal to the far field, isolating the first transmission signal by applying the first synchronization sequence to the far field, isolating the second transmission signal by applying the second synchronization sequence to the far field, applying the distributed coding matrix to the first transmission signal to extract the first symbol, applying the distributed coding matrix to the second transmission signal to extract the second symbol and estimating the data signal in response to the first symbol and the second symbol.
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
The evolutionary feature selection algorithm is combined with model evaluation during training to learn feature subsets that maximize speech/non-speech distribution distances. The technique enables ensembling of low-cost models over similar features subspaces increases classification accuracy and has similar computational complexity in practice. Prior to training the models, feature analysis is conducted via an evolutionary feature selection algorithm which measures fitness for each feature subset in the population by its k-fold cross validation score. PCA and LDA based eigen-features are computed for each subset and fitted with a Gaussian Mixture Model from which combinations of feature subsets with Maximum Mean Discrepancy scores are obtained. During inference, the resulting features are extracted from the input signal and given as input to the trained neural networks.
G06N 3/086 - Learning methods using evolutionary algorithms, e.g. genetic algorithms or genetic programming
G10L 25/30 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the analysis technique using neural networks
G10L 25/39 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the analysis technique using genetic algorithms
G10L 25/93 - Discriminating between voiced and unvoiced parts of speech signals
G06N 3/0442 - Recurrent networks, e.g. Hopfield networks characterised by memory or gating, e.g. long short-term memory [LSTM] or gated recurrent units [GRU]
18.
Signal processor employing neural network trained using evolutionary feature selection
The evolutionary feature selection algorithm is combined with model evaluation during training to learn feature subsets that maximize speech/non-speech distribution distances. The technique enables ensembling of low-cost models over similar features subspaces increases classification accuracy and has similar computational complexity in practice. Prior to training the models, feature analysis is conducted via an evolutionary feature selection algorithm which measures fitness for each feature subset in the population by its k-fold cross validation score. PCA and LDA based eigen-features are computed for each subset and fitted with a Gaussian Mixture Model from which combinations of feature subsets with Maximum Mean Discrepancy scores are obtained. During inference, the resulting features are extracted from the input signal and given as input to the trained neural networks.
Node having an adaptive space-spectrum whitener and multi-user rake receiver for use in a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission with cooperative beamforming and adaptive space-spectrum whitening
A method is provided for use in a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform. DSSS signals are received from other nodes on different channels. ASSW is performed to detect and remove interference signals received on the different channels. MDFT analysis banks each receive a beam in the spectral domain that can be channelized to generate a channelized beam that comprises multiple spectral channels. An adaptive interference mitigation space-frequency whitener module can then be applied to remove interference and generate interference-mitigated spatial-spectral domain channels. MDFT synthesis banks can each perform a MDFT synthesis operation on one of the spatial-spectral domain channels. A multi-user RAKE receiver can then combine the interference mitigated time-domain channelized signals to generate a subset (1 . . . F) of fingers that combine components of transmissions directly received from the other nodes and multipath components of those transmissions.
H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/08 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
H04B 7/026 - Co-operative diversity, e.g. using fixed or mobile stations as relays
An optical communication system is configured to transmit and receive at least four multiplexed, differently-polarized, optically-transmitted signals. Each signal is associated with a predefined state of polarization. An optical transmitter is configured to transmit multiplexed, differently polarized, optically transmitted signals. An optical receiver is configured to receive the optically transmitted signals. The system includes a multi-polarization analyzer circuit configured to obtain an analyzed signal for each of the polarized signals in Stokes space. The analyzer circuit is configured to determine if the multiplexed signal has been transformed by extreme polarization-dependent loss (PDL), the receiver correcting for the extreme polarization-dependent loss.
ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Zhang, Zheshen
Zhuang, Quntao
Clark, William
Abstract
A reconfigurable sensor network uses continuous-variable (CV) multipartite entangled quantum states for distributed RF sensing with uncertainties below the standard quantum limit. A CV multipartite entangled state is generated with a quantum circuit that splits a squeezed vacuum state into spatially separated optical modes that are entangled. Each optical mode is transmitted to a RF-photonic sensor that imposes, on the corresponding optical mode, a quadrature displacement based on the local properties of an RF signal. A homodyne detector then measures the quadrature displacement. A post-processor combines the measurements to estimate a global property of the RF signal, such as an angle-of-arrival. To enable distributed sensing over large distances, the RF-photonic sensors may be spatially separated by several kilometers, or more. Alternatively, the RF-photonic sensors may be integrated into a single photonic system, such as a photonic integrated circuit.
09 - Scientific and electric apparatus and instruments
Goods & Services
downloadable or recorded computer software for use in securing access to computing systems and data
24.
Method and system of communicating between a plurality of nodes that are part of a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform
A method and system of communicating between a plurality of nodes are provided. The plurality of nodes are part of a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform.
H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/08 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
A method of optimizing spectrum usage in real-time for a plurality of networks is provided. The method includes: retrieving local spectrum usage data in a geographical area in which spectrum allocation is to take place; modeling the plurality of networks, using one or more quantum statistical models, as a system of interacting particles, wherein each particle represents a node in a network and is configurable to exist in one of several quantum states; selecting bandwidth allocation and utilization constraints for the nodes based on a system allocation intent; solving an optimization problem related to the system allocation intent to estimate specific frequency and bandwidth distributions to be allocated to each node by applying the selected one or more quantum statistical models, the selected bandwidth allocation and utilization constraints, and the captured local spectrum data; and instructing each node to operate within the specific bandwidth allocated to the node.
A receiver is provided that includes a multi-user RAKE receiver that can receive a plurality of transmissions directly received from a plurality of nodes of a cooperative broadcast multi-hop network and multipath components of those transmissions, a combiner module and a data despreader module. The multi-user RAKE receiver includes correlator blocks for each node and a finger selection module. Each correlator block generates one or more candidate fingers for that particular node. The finger selection module can select a subset of the candidate fingers having sufficient correlation for further processing. The combiner module can combine aligned symbols for the subset of candidate fingers to generate and combine soft decisions across each of a plurality of channels into a joint soft decision. The data despreader module can despread chips of information from each of the plurality of channels to generate demodulated data symbols that are converted into data soft-decision bits.
H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/08 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
A real-time spectrum optimization and allocation is provided within multifunction, co-located, interacting heterogeneous networks. Quantum statistical allocation techniques may be adapted to networks with nodes that behave indistinguishably and distinguishably, within a common geographic locational area. If the network nodes are indistinguishable, their statistical behavior may be Fermionic or Bosonic. Fermionic nodes occupy a single or the same state with some form of degeneracy. Bosonic nodes may occupy a single or the same state, with or without degeneracy. If the nodes are distinguishable, then their statistical behavior is Boltzmann-like, and they may occupy the same state provided there is degeneracy to the overall bandwidth allowing information to be transferred.
COOPERATIVE BROADCAST MULTI-HOP NETWORK THAT EMPLOYS BROADCAST FLOOD ROUTING AND MULTI-HOP TRANSMISSION USING A DIRECT-SEQUENCE SPREAD-SPECTRUM (DSSS) WAVEFORM WITH COOPERATIVE BEAMFORMING AND ADAPTIVE SPACE-SPECTRUM WHITENING, AND A NODE FOR USE IN A COOPERATIVE BROADCAST MULTI-HOP NETWORK HAVING A MULTI-USER RAKE RECEIVER AND/OR AN ADAPTIVE SPACE-SPECTRUM
A cooperative broadcast multi-hop network is provided that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform with cooperative beamforming and adaptive space-spectrum whitening. Node(s) can receive DSSS signals from other nodes on a particular channel, and output a channel that includes the plurality of DSSS signals, which include transmissions that are directly received from other nodes. A multi-user RAKE (mRAKE) receiver can cooperatively beamform and perform adaptive space-spectrum whitening to detect and remove interference signals received from each of the channels by performing a covariance analysis to generate channelized signals. Modified Discrete Fourier Transform analysis and synthesis modules can generate an interference mitigated time-domain channelized signals, such that the mRAKE receiver, when performing demodulation processing, can combine the interference mitigated time-domain channelized signals received from the other nodes.
H04B 1/707 - Spread spectrum techniques using direct sequence modulation
H04W 88/04 - Terminal devices adapted for relaying to or from another terminal or user
H04B 1/7115 - Constructive combining of multi-path signals, i.e. RAKE receivers
H04B 7/026 - Co-operative diversity, e.g. using fixed or mobile stations as relays
H04B 1/713 - Spread spectrum techniques using frequency hopping
H04B 7/04 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H04B 7/216 - Code-division or spread-spectrum multiple access
29.
Node having a multi-user rake receiver for use in a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission with cooperative beamforming
A node is provided that is configured to communicate in a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform. The node includes an antenna and a waveform module having a receiver processing chain. The antenna can receive a plurality of DSSS signals from other nodes on a particular channel, and output a channel that includes the plurality of DSSS signals. The plurality of DSSS signals include transmissions that are directly received from other nodes and multi-path components of those transmissions. The receiver processing chain can include a multi-user RAKE receiver that can combine, when performing demodulation processing, a plurality of transmissions directly received from the other nodes and multipath components of transmissions received from the other nodes. In some implementations, the node can perform cooperative beamforming and adaptive space-spectrum whitening.
H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/08 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
Node having an adaptive space-spectrum whiteniner and multi-user rake receiver for use in a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission with cooperative beamforming and adaptive space-spectrum whitening
A node is provided for a cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission. The node includes antennas and a waveform module having a receiver processing chain that can include an adaptive space-spectrum whitener (ASSW) module and a multi-user RAKE (mRAKE) receiver. Each antenna can receive output a channel that includes direct-sequence spread-spectrum signals received from other nodes and multi-path components of those transmissions. The ASSW module can perform adaptive space-spectrum whitening to detect and remove interference signals received from each of the channels by performing a covariance analysis to generate channelized signals. The ASSW module can include modified Discrete Fourier Transform (MDFT) analysis and synthesis modules that generate an interference mitigated time-domain channelized signals. The mRAKE receiver, when performing demodulation processing, can combine the interference mitigated time-domain channelized signals to generate fingers that combine components of transmissions received from the other nodes.
H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/08 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
H04L 1/00 - Arrangements for detecting or preventing errors in the information received
COOPERATIVE BROADCAST MULTI-HOP NETWORK THAT EMPLOYS BROADCAST FLOOD ROUTING AND MULTI-HOP TRANSMISSION USING A DIRECT-SEQUENCE SPREAD-SPECTRUM (DSSS) WAVEFORM WITH COOPERATIVE BEAMFORMING AND ADAPTIVE SPACE-SPECTRUM WHITENING, AND A NODE FOR USE IN A COOPERATIVE BROADCAST MULTI-HOP NETWORK HAVING A MULTI-USER RAKE RECEIVER AND/OR AN ADAPTIVE SPACE-SPECTRUM WHITENER
A cooperative broadcast multi-hop network is provided that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform with cooperative beamforming and adaptive space-spectrum whitening. Node(s) can receive DSSS signals from other nodes on a particular channel, and output a channel that includes the plurality of DSSS signals, which include transmissions that are directly received from other nodes. A multi-user RAKE (mRAKE) receiver can cooperatively beamform and perform adaptive space-spectrum whitening to detect and remove interference signals received from each of the channels by performing a covariance analysis to generate channelized signals. Modified Discrete Fourier Transform analysis and synthesis modules can generate an interference mitigated time-domain channelized signals, such that the mRAKE receiver, when performing demodulation processing, can combine the interference mitigated time-domain channelized signals received from the other nodes.
H04B 1/7115 - Constructive combining of multi-path signals, i.e. RAKE receivers
H04B 1/713 - Spread spectrum techniques using frequency hopping
H04B 1/692 - Hybrid techniques using combinations of two or more spread spectrum techniques
H04B 7/04 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
H04W 88/04 - Terminal devices adapted for relaying to or from another terminal or user
H04B 7/06 - Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
H04B 7/026 - Co-operative diversity, e.g. using fixed or mobile stations as relays
32.
Cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform with cooperative beamforming and adaptive space-spectrum whitening
A cooperative broadcast multi-hop network that employs broadcast flood routing and multi-hop transmission using a direct-sequence spread-spectrum (DSSS) waveform with cooperative beamforming and adaptive space-spectrum whitening are provided.
A signal generator outputs a reference signal corresponding to at least one wireless signal according to the predefined signal encoding to a channel emulator processor. The channel emulator processor is programmed to use at least one synthesized channel parameter and the reference signal to produce and store a perturbed signal as data for training machine learning and artificial intelligence systems. The synthesized channel parameter is synthesized using a channel synthesizer processor programmed to: ingest map elevation data, reference a transmitter and a receiver to the map elevation data, and perform ray tracing of a representative signal between the transmitter and the receiver, while applying at least one predetermined perturbation property to synthesize at least one channel parameter.
A signal generator outputs a reference signal corresponding to at least one wireless signal according to the predefined signal encoding to a channel emulator processor. The channel emulator processor is programmed to use at least one synthesized channel parameter and the reference signal to produce and store a perturbed signal as data for training machine learning and artificial intelligence systems. The synthesized channel parameter is synthesized using a channel synthesizer processor programmed to: ingest map elevation data, reference a transmitter and a receiver to the map elevation data, and perform ray tracing of a representative signal between the transmitter and the receiver, while applying at least one predetermined perturbation property to synthesize at least one channel parameter.
A mounting frame apparatus is provided for embedding cards within an electronics system and includes a multi-card swappable subsystem. The apparatus further includes a chassis for containing the multi-card swappable subsystem. One or more heatsinks are used for cooling cards disposed in the four-card swappable subsystem.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Electronic encryption units, comprised of hardware and computer software for use in the encryption and decryption of digital files that protect information and ensure secure communications.
38.
System and methods for automatic solar panel recognition and defect detection using infrared imaging
Methods and systems are provided for detecting a defect in a solar panel. The method includes initially imaging, via an infrared camera, a group of solar panels. Then, identifying, via a computer system configured for solar panel defect detection, the individual solar panels in the group of solar panels. Finally, identifying, via evaluation of an infrared image obtained by the infrared camera, a defect in at least one of the group of solar panels.
Embodiments of the present invention relate to systems and methods for improving the training of machine learning systems to recognize certain objects within a given image by supplementing an existing sparse set of real-world training images with a comparatively dense set of realistic training images. Embodiments may create such a dense set of realistic training images by training a machine learning translator with a convolutional autoencoder to translate a dense set of synthetic images of an object into more realistic training images. Embodiments may also create a dense set of realistic training images by training a generative adversarial network (“GAN”) to create realistic training images from a combination of the existing sparse set of real-world training images and either Gaussian noise, translated images, or synthetic images. The created dense set of realistic training images may then be used to more effectively train a machine learning object recognizer to recognize a target object in a newly presented digital image.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Design and development of radio communication devices for military and commercial users; engineering services in the field of advanced military radios and waveforms
09 - Scientific and electric apparatus and instruments
Goods & Services
Microwave transmitters and receivers; wireless transmitters and receivers; computer hardware for recording, storage, compression, broadcast, transmission, and reproduction of video, audio, and data; computer software for recording, storage, broadcast, transmission, and reproduction of video, audio, and data
09 - Scientific and electric apparatus and instruments
35 - Advertising and business services
Goods & Services
Computer software for controlling and managing patient medical information; Computer software for clinician domain Natural Language Processing (NLP) engine to harvest clinical information from unstructured text, producing clinical codes for medical clinicians to electronically manage, control and process patient health data and bill medical insurers and instructional user guides sold as a unit Medical records coding services for others in the nature of assignment of diagnostic and procedural codes for purposes of reimbursement from insurance
45.
Systems and methods for recognizing objects in radar imagery
The present invention is directed to systems and methods for detecting objects in a radar image stream. Embodiments of the invention can receive a data stream from radar sensors and use a deep neural network to convert the received data stream into a set of semantic labels, where each semantic label corresponds to an object in the radar data stream that the deep neural network has identified. Processing units running the deep neural network may be collocated onboard an airborne vehicle along with the radar sensor(s). The processing units can be configured with powerful, high-speed graphics processing units or field-programmable gate arrays that are low in size, weight, and power requirements. Embodiments of the invention are also directed to providing innovative advances to object recognition training systems that utilize a detector and an object recognition cascade to analyze radar image streams in real time. The object recognition cascade can comprise at least one recognizer that receives a non-background stream of image patches from a detector and automatically assigns one or more semantic labels to each non-background image patch. In some embodiments, a separate recognizer for the background analysis of patches may also be incorporated. There may be multiple detectors and multiple recognizers, depending on the design of the cascade. Embodiments of the invention also include novel methods to tailor deep neural network algorithms to successfully process radar imagery, utilizing techniques such as normalization, sampling, data augmentation, foveation, cascade architectures, and label harmonization.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Batteries, battery chargers, and computer software for operation of underwater vehicles Underwater vehicles and structural components thereof, namely, autonomous and remotely operated underwater vehicles comprised of a vehicle body and one or more of the following components and accessories: operating software, batteries and battery chargers, all sold together as a unit Marine operations services, namely, operating autonomous and remotely operated underwater vehicles; ship charter services Marine engineering services; consulting in the field of marine engineering; marine operations services, namely, marine engineering services
The disclosed embodiments relate to a cybersecure endpoint (CSE) device for a communication system. The CSE device performs a computer-implemented method for protecting an unsecure device coupled to a secure network from an electronic communication containing malware or malicious code. To do this, the cyber secure endpoint device receives a Transmission Control Protocol/Internet Protocol (TCP/IP) communication from a TCP/IP network and performs cybersecurity analysis on the TCP/IP communication to detect the malware or malicious code. When the malware or malicious codes is not detected, a protocol transformation is performed on the TCP/IP communication to create a downstream communication, which is transmitted the downstream communication to the unsecure device via a non-IP addressable communication channel.
Systems and methods are provided for performing alignment calibration of an RF antenna in satellite communications. Data is received that is representative of inertial navigation system and gimbal angle measurement signals. The received data is collected while a vehicle is operated in a reduced yaw motion and while the RF antenna is tracking a satellite. Equations are used that describe a mathematical relationship among the misalignments, offsets, and latency mismatch to the antenna gimbal control servo measurements. Estimates are generated for certain errors involved in the alignment process. The generated estimates are provided for pointing the RF antenna.
H01Q 3/00 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
H01Q 3/08 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
H01Q 3/32 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by mechanical means
H01Q 3/34 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means
G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
G01S 19/24 - Acquisition or tracking of signals transmitted by the system
H01Q 1/32 - Adaptation for use in or on road or rail vehicles
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
G01S 19/49 - Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system whereby the further system is an inertial position system, e.g. loosely-coupled
49.
Systems and methods for fast and repeatable embedding of high-dimensional data objects using deep learning with power efficient GPU and FPGA-based processing platforms
Embodiments of the present invention are directed to providing new systems and methods for using deep learning techniques to generate embeddings for high dimensional data objects that can both simulate prior art embedding algorithms and also provide superior performance compared to the prior art methods. Deep learning techniques used by embodiments of the present invention to embed high dimensional data objects may comprise the following steps: (1) generating an initial formal embedding of selected high-dimensional data objects using any of the traditional formal embedding techniques; (2a) designing a deep embedding architecture, which includes choosing the types and numbers of inputs and outputs, types and number of layers, types of units/nonlinearities, and types of pooling, for example, among other design choices, typically in a convolutional neural network; (2b) designing a training strategy; (2c) tuning the parameters of a deep embedding architecture to reproduce, as reliably as possible, the generated embedding for each training sample; (3) optionally deploying the trained deep embedding architecture to convert new high dimensional data objects into approximately the same embedded space as found in step (1); and optionally (4) feeding the computed embeddings of high dimensional objects to an application in a deployed embodiment.
H04N 1/32 - Circuits or arrangements for control or supervision between transmitter and receiver
G06K 9/66 - Methods or arrangements for recognition using electronic means using simultaneous comparisons or correlations of the image signals with a plurality of references, e.g. resistor matrix references adjustable by an adaptive method, e.g. learning
50.
Integrated card rail and cooling module for embedded computing systems
A flow-through card rail module is provided in a circuit module chassis assembly for an embedded computing system. A set of elongated guide rails are formed on a base plate and define a card channel for receiving a circuit card. Each guide rail has a cooling passage extending from a fluid inlet to a fluid outlet. A corrugated structure is formed on an opposite side of the base plate and includes a set of elongated cells. Each elongated cell has a cooling passage formed therein extending from the fluid inlet to the fluid outlet. Internal walls subdivide the cooling passages formed in the guide rails and the elongated cells to form a honeycomb structure. The flow-through card rail module including the base plate, the guide rails and the corrugated structure may be formed as a monolithic component.
The invention generally provides a system and method for detecting, measuring, and/or classifying particulate and/or water contaminants in a fluid supply line, storage tank, or sump. Embodiments of the invention provide a contaminant detection apparatus with a detection chamber and a detection module. The detection chamber includes a housing with an internal fluid conduit and one or more acoustic transducers disposed in the housing. Alarms and/or automatic signaling may be included to shut off valves or pumps when contaminants are detected.
G01N 29/44 - Processing the detected response signal
F02M 37/22 - Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
G01N 29/028 - Analysing fluids by measuring mechanical or acoustic impedance
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object - Details
G01N 29/34 - Generating the ultrasonic, sonic or infrasonic waves
G01N 15/06 - Investigating concentration of particle suspensions
Methods and systems are provided for detecting a defect in a solar panel. The method includes initially imaging, via an infrared camera, a group of solar panels. Then, identifying, via a computer system configured for solar panel defect detection, the individual solar panels in the group of solar panels. Finally, identifying, via evaluation of an infrared image obtained by the infrared camera, a defect in at least one of the group of solar panels.
Methods and systems are provided for detecting a defect in a solar panel. The method includes initially imaging, via an infrared camera, a group of solar panels. Then, identifying, via a computer system configured for solar panel defect detection, the individual solar panels in the group of solar panels. Finally, identifying, via evaluation of an infrared image obtained by the infrared camera, a defect in at least one of the group of solar panels.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Computer hardware for secure transfer of data between security domains for use by military personnel; computer security software for the secure transfer of data between security domains for use by military personnel.
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer hardware for secure transfer of data between security domains for use by military personnel; computer software for secure transfer of data between security domains for use by military personnel
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer software for use in remote management of computer network encryption Providing temporary use of a web-based software application for use in remote management of computer network encryption
09 - Scientific and electric apparatus and instruments
38 - Telecommunications services
Goods & Services
Computer hardware; computer software for use in cyber security, secure telecommunications, and electronic warfare, namely, software that ensures the security of computer networks systems Secure digital network telecommunications services
A cable containing an optical fiber is used to transmit data between an underwater remotely operated vehicle (ROV) and a support vessel floating on the surface of the water. The ROV stores the cable on a spool and releases the cable into the water as the ROV dives away from the support vessel. The ROV detects the tension in the cable and the rate that the cable is released from the ROV is proportional to the detected tension in the cable. After the ROV has completed the dive and retrieved by the support vessel, the cable can be retrieved from the water and rewound onto the spool in the ROV.
B65H 75/42 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools or machines
09 - Scientific and electric apparatus and instruments
37 - Construction and mining; installation and repair services
41 - Education, entertainment, sporting and cultural services
Goods & Services
Global positioning system (GPS); GPS navigation device; GPS tracking device; timing sensors; computer hardware and software system for navigation, tracking, and timing; navigation systems; navigation computers Installation of Global positioning systems (GPS), GPS navigation devices, GPS tracking devices, timing sensors, computer hardware and software systems for navigation, tracking, and timing, navigation systems, navigation computers Providing in-person and online training classes, courses, seminars, and workshops in the field of Global positioning systems (GPS), GPS navigation devices, GPS tracking devices, timing sensors, computer hardware and software systems for navigation, tracking, and timing, navigation systems, navigation computers
The present invention is directed to systems and methods for detecting objects in a radar image stream. Embodiments of the invention can receive a data stream from radar sensors and use a deep neural network to convert the received data stream into a set of semantic labels, where each semantic label corresponds to an object in the radar data stream that the deep neural network has identified. Processing units running the deep neural network may be collocated onboard an airborne vehicle along with the radar sensor(s). The processing units can be configured with powerful, high-speed graphics processing units or field-programmable gate arrays that are low in size, weight, and power requirements. Embodiments of the invention are also directed to providing innovative advances to object recognition training systems that utilize a detector and an object recognition cascade to analyze radar image streams in real time. The object recognition cascade can comprise at least one recognizer that receives a non-background stream of image patches from a detector and automatically assigns one or more semantic labels to each non-background image patch. In some embodiments, a separate recognizer for the background analysis of patches may also be incorporated. There may be multiple detectors and multiple recognizers, depending on the design of the cascade. Embodiments of the invention also include novel methods to tailor deep neural network algorithms to successfully process radar imagery, utilizing techniques such as normalization, sampling, data augmentation, foveation, cascade architectures, and label harmonization.
G01S 13/90 - Radar or analogous systems, specially adapted for specific applications for mapping or imaging using synthetic aperture techniques
G06N 3/04 - Architecture, e.g. interconnection topology
G01S 7/41 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisation; Target signature; Target cross-section
63.
Methods, systems, and apparatuses for inverting a submersible craft
Autonomous, unmanned submersible can turn upside down in order to use instrumentation placed on one side only. Batteries (106) and instrumentation housing (104) are installed on frame rails (112,14,108,110) and can change their relative positions, thus inverting the relative positions between center of buoyancy and center of gravity and subsequently inverting the submersible.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Zakrzewski, Robert
Abstract
A packet data network gateway, P-GW, is located in a second network for supporting control plane data in a wireless communications system that additionally comprises a first network having a first packet data network gateway, P-GW, operably couplable to the P-GW and a serving gateway, S-GW. The P-GW comprises a processor arranged to determine an operational status of at least one of: a backhaul link, first P-GW. In response to the processor determining that both of the backhaul link and the first P-GW are available, the processor is arranged to perform at least one of: trigger deferred signalling between the first network and at least one of a mobility management entity, MME, the S-GW; trigger user plane handling, monitor and build terminal device context information for a plurality of terminal devices being served with user plane data by the backhaul link of the second network.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Zakrzewski, Robert
Abstract
A wireless communications system supporting user plane data comprises: a first network having a first packet data network gateway (P-GW); a second network having a second P-GW operably coupled to the first network via a backhaul link; a serving gateway (S-GW) a base station; and a terminal device, wherein a single packet data network connection is created for the terminal device that traverses through the first P-GW, second P-GW, S-GW and base station.
A method is provided for sharing access to graphics processing unit (GPU) hardware between multiple client virtual machines, wherein each of the client virtual machines has a high-level application programming interface (API) associated therewith for communicating with the GPU hardware. The method includes virtualizing the GPU by intercepting GPU-specific commands from the plurality of client virtual machines, wherein the commands specific to the GPU are at a lower level than that of the high-level API, and providing the intercepted commands to the GPU hardware.
09 - Scientific and electric apparatus and instruments
Goods & Services
Global positioning system (GPS) receiver, designed for space-borne use, that provides position, velocity and time information for space applications such as launch vehicles, satellites, and rockets
09 - Scientific and electric apparatus and instruments
Goods & Services
Global positioning system (GPS) receiver, designed for space-borne use, that provides position, velocity and time information for space applications such as launch vehicles, satellites, and rockets
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
35 - Advertising and business services
37 - Construction and mining; installation and repair services
38 - Telecommunications services
40 - Treatment of materials; recycling, air and water treatment,
41 - Education, entertainment, sporting and cultural services
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Machine parts, namely, bearings, air bearings, hydrodynamic air bearings and miniature ball bearings; [ electronic drives not for locomotion of land vehicles which enable motors to move; motors not for locomotion of land vehicles and structural parts therefore for motion control and sensor apparatus, namely, motor laminations, bearings, machined housings/bases/sleeves; brushless and brush-type torque motors not for locomotion of land vehicles; direct drive motors not for use with land vehicles ] Computers, computer hardware and computer software for encryption and communications software for connecting global network users; Software for use in providing security of mobile devices, smartphones, tablets and laptops; software for use in providing security of applications used on mobile devices, smartphones, tablets and laptops; Computer software for use in the encoding and decoding, compression, encryption, tracking, mosaicking, transmission, reading, writing, and streaming of real-time digital video and image; embedded computer software for use in digital video transmission to and from radio devices, mobile devices, system platforms and laptops over a network or point to point; computer software providing real-time text-based communications and file or directory transfers between users across disparate platforms; Mobile computer hardware and software application that allows data transfer across multiple security domains; Communications apparatus and instruments, namely, radio base stations, portable and mobile radios and telephones; encryption apparatus and instruments, namely, key managers and key loaders in the nature of electronic encryption units and computer hardware; Telecommunications equipment for wireless connections to computer networks, namely, base stations, portable and mobile subscriber units, modems, communications networks controllers, and computer software for providing wireless connections to computer networks; Computer hardware, namely, mass data storage disks; data loader recorders; computer workstation equipment comprising mass data storage disks; removable mass data storage cartridges; desktop adapters for removable mass data storage cartridges; Mission management systems comprised of computer hardware and computer software for providing situational awareness, command and control, user and workflow management and for providing unified data access and integration for land, air, sea, space and intelligence system applications; Satellite-aided navigations systems for use in navigation and platform control; [ Motion imagery management system comprised of computer software and middleware to capture, exploit, disseminate, view, analyze, and archive motion imagery, full motion video, and multimedia data for use by the military, intelligence and defense communities; Computer software for generating and managing geo-spatial products, namely, the conversion of raw remote sensing data into image files for the automated extraction of features in standard image formats; Computer software for processing, enhancing, and restoring images and video; ] Global positioning system (GPS) receiver, designed for space-borne use, that provides position, velocity and time information for space applications such as launch vehicles, satellites, and rockets; [ Software used to manipulate and store digital video and audio data footage, content and data, to capture, process, edit and store digital video and audio data streams, to conform digital video and audio data broadcast footage, to manipulate metadata on-line, to repurpose and locate digital video and audio data content, to maintain the integrity and quality of digital video and audio data footage during edit and manipulation, to distribute digital video and audio data editing capabilities to others, to integrate digital video and audio data content with Digital Asset Management (DAM) systems; ] computer software for operating and managing encoders, decoders, transmitters, receivers and data reproducers; electronic devices, apparatus, equipment and installations, namely, decoders, encoders, digital video and audio data stream servers, channel controllers, multimedia ATM adaptors, splitter encapsulators, channel multiplexers, local inserters, optical fiber nodes, return channels in the nature of electric wires, hybrid fiber-coaxial (HFC) network platforms comprised of optical fiber nodes and amplifiers, network adaptors, switches; computer software in the field of digital video and audio data for generating, calculating, controlling, keyboarding, stocking, converting, compressing, processing, transmitting, switching, receiving and reproducing data information, audio signals, and video signals; computer software for the management of communications networks and communication network components; electric cables, optical fiber cables, encoders, decoders, multiplexers, modulators, demodulators, and computer hardware in the nature of communication servers; [ computer hardware and software components used to edit, manipulate, store and view digital video and audio data, footage and content, to capture, process, edit and store digital video and audio data streams, to conform digital video and audio broadcast footage, to manipulate metadata on-line, to repurpose and locate digital video and audio data, to maintain the integrity and quality of digital video and audio data during edit and manipulation, to distribute digital video and audio data editing capabilities to others, to integrate digital video and audio data content with Digital Asset Management (DAM) systems; computer hardware for use in the multimedia field, namely, digital video and audio decoder cards and chips which enable computers to playback live and stored streaming digital audio and video; ] electronic printed circuit boards for logic compression and expansion algorithms, digital video and audio data encoders and decoders, computer software for use in performing logic compression and expansion algorithms, and computer software for use in operating and managing digital video and audio data encoders and decoders; picture compression encoders; picture compression decoders; picture compression transcoders; video compression encoders; video compression decoders; video compression transcoders; audio compression encoders; audio compression decoders; audio compression transcoders; digital video and audio data compression encoders, compression decoders, compression transcoders, digital video editors, electrical switchers, monitors, synchronizers, transmitters, computer hardware for high-speed processing and storage of data, digital processors, multiplexers and demultiplexors; switchers, editors, monitors, synchronizers, translators, converters, testers, transmitters, stores, processors, multiplexers, and de-multiplexers, all for compression encoded or compression decoded or partially compression encoded or partially compression decoded picture, video or audio signals; software for switching, editing, monitoring, synchronizing, translating, converting, multiplexing, de-multiplexing or other processing of compression encoded or compression decoded or partially compression encoded or compression decoded picture, video or audio signals; software for testing and monitoring or guiding or controlling the specifically aforementioned goods; [ Optical products, namely, low light and near infrared camera, thermal imaging remotely controlled camera comprised of an infrared dual field of view camera 3-5 micron, tripod interface, handheld controller and cabling, optical scope lenses, camera body, infrared optical lenses, thermal camera enclosures, thermal sensor and imaging electronics, computer software to process thermal images and convert for visual display and image analysis, and infrared optical sensors; ] motion control and sensor components and parts therefor, namely, pressure transducers, potentiometers, encoders, resolvers, tachometers, control synchros, actuators, scanners, and servo systems comprising some or all of the foregoing sold as a unit; electrical connectors, namely, barrier terminal strips and/or blocks; precision optics, namely, lenses for focusing and deflecting light, laser beams, infrared and thermal energy; [ Insulated copper wire coils, Hall Effect sensors, printed wire circuit boards, electrical wire harnesses, resolver and synchro angular position sensors, and direct drive assemblies, namely, optical assemblies, infrared (IR) lenses, and thermal imagers which function as pointing devices for various sensors, tracking gimbals for military missile guidance, point devices, namely, electrical resolvers, and pan-tilt systems comprised of optical sensors, cameras, camera mounts and supports and electric controllers for area surveillance, provide motion and/or motion control of satellite components, of light and heavy commercial machinery, and of military equipment for aerospace, defense and commercial applications; precision metal optics, namely, metal optical mirror for reflecting light, laser beams, infrared or thermal energy; hand held thermal imaging systems comprised of thermal imaging camera, infrared detector, display, battery and heat sink; motion stabilizing sensor platforms for film, video and infrared cameras for use in moving vehicles; all for use in military, maritime, industrial, aerospace, broadcast and film production and law enforcement applications ] Underwater communications and Sensing systems, namely, underwater remotely operated vehicles (ROVs) Procurement, namely, purchasing telecommunications equipment for others Maintenance of telecommunications networks, apparatus, and instruments; Installation of computer systems; updating and maintenance of computer hardware [ ; Maintenance for others of brushless and brush-type torque motors, resolver and synchro angular position sensors, and direct drive assemblies for aerospace, defense and commercial applications; maintenance of high-performance camera systems and components, motion control products, ultraviolet, visual and infrared optics and optical systems, namely, gyro stabilized camera systems, infrared cameras, electro-optical infrared cameras, surveillance cameras, lens assemblies and coatings, pan and tilt systems, multi-axis gimbals, high-speed optical scanning systems, micro inspection systems, targeting and tracking systems, and laser steering devices for military, maritime, industrial, aerospace, broadcast and film production and law enforcement applications ] Broadcast, satellite and remote transmission of data, information and audio and video signals, namely, radio broadcasting, television broadcasting, video broadcasting, electronic transmission of messages, data and documents via computer terminals, electronic transmission of messages; communications by computer terminals, namely, providing multiple-user access to a global computer information network; Telecommunications services, namely, voice services in the nature of voice chat services and voice communication services via the Internet; provision of on-line communications services namely, simple data access in the nature of provision of access to data, documents, and files stored electronically in central files for remote use; communications via a global computer network or the Internet namely, providing virtual private network (VPN) services and providing e-mail services; wireless communication services, namely, electronic transmission of physical location data for vehicle fleets and command and control systems for public safety and defense; remote portable connections, namely, wireless broadband communication services; wireless telephone services; cellular communications services namely, text based services in the nature of small message services (SMS) and instant messaging; cellular telecommunications services namely, transmission of voice, audio, visual images, and data; cellular telephone communications services; electronic mail, message sending and receiving services; broadcasting services namely, video broadcasting services via the Internet; transmission and distribution of data or audio visual images via a global computer network or the Internet; rental of access time to global computer networks; providing user access to a global computer network Custom manufacturing of secure communication and information computer networks for others [ ; Custom manufacture and manufacture to the order and/or specification of others of brushless and brush-type torque motors, resolver and synchro angular position sensors, and direct drive assemblies for aerospace, defense and commercial applications; custom manufacture and manufacture to the order and/or specification of others of high-performance camera systems and components, motion control products, ultraviolet, visual and infrared optics and optical systems, namely, gyro stabilized camera systems, infrared cameras, electro-optical infrared cameras, surveillance cameras, lens assemblies and coatings, pan and tilt systems, multi-axis gimbals, high-speed optical scanning systems, micro inspection systems, targeting and tracking systems, and laser steering devices for military, maritime, industrial, aerospace, broadcast and film production and law enforcement application ] Training services for the simulation and modeling of battlefield conditions; conducting training courses in the field of disaster response forecasting and preparation, hazard prediction, threat simulation vulnerability analysis and mitigation Cyber security services, namely, planning, design and implementation of computer technologies and electronic communications systems for others; product development for others in the field of telecommunications networks, apparatus, and instruments to support virtual threat simulators, data management, collaborative engineering; computer security consulting services, namely, creating customized response plans for detecting, containing, reporting and analyzing security breaches of computer and communications networks; computer data recovery; digital forensic services related to analysis of software data and information; design and development of intelligence computer and communications networks for compiling and disseminating information for use by military, first responders and intelligence community organizations; integration of computer systems and networks in the field of telecommunications to support virtual threat simulators, data management, collaborative engineering; [ product development for others of brushless and brush-type torque motors, resolver and synchro angular position sensors, and direct drive assemblies for aerospace, defense and commercial applications; ] updating and maintenance of computer software; [ design for others of high-performance camera systems and components, motion control products, ultraviolet, visual and infrared optics and optical systems, namely, gyro stabilized camera systems, infrared cameras, electro-optical infrared cameras, surveillance cameras, lens assemblies and coatings, pan and tilt systems, multi-axis gimbals, high-speed optical scanning systems, micro inspection systems, targeting and tracking systems, and laser steering devices for military, maritime, industrial, aerospace, broadcast and film production and law enforcement applications; ] Engineering services related to integration of computer and communications systems for secured network environments; Technology consultation, research and development services in the field of radar, infrared, optics, imagery (Radio Frequency, ACOUSTICs, Electronic Warfare ) and sensing design, technology transfer, and sensing applications; Software as a service (SAAS) and Platform as a Service (PaaS) services featuring software for processing, enhancing, and restoring images and video; Research, development and testing of new products in virtual and physical laboratories and facilities; providing a secured-access, members only website featuring technology that gives registered member organizations, comprised of companies, government agencies and academic institutions, the ability to coordinate submission, collaboration, design, and integration of computer network technology and cyber security technology in response to specific customer mission requirements; Computer software design, computer systems design, computer programming; technology consultancy in relation to computer hardware, software and systems and computer programming; research and development in relation to computer software and computer systems; technical research and technology consulting in the field of digital video and audio data and telecommunication devices, apparatus, equipment, installations and computer hardware and software; updating and maintenance of computer software; consulting services in the field of the design, selection, implementation and use of computer hardware and software systems for others; Development, design and integration of secure communication and information computer networks; design, development and integration of satellite operations and ground centers with satellite equipment; command and control strategy consultation services for integration of networks and communications systems for use in the battlefield and by warfighters; design and engineering services related to creation of ruggedized computer hardware products for use; telemetry based equipment monitoring services, namely, remote monitoring of industrial processes, municipal systems, vehicle fleets, and command and control systems using computers and sensors Licensing of computer software; Surveillance and electronic monitoring services for security purposes in the field of persons, drugs and contraband for border patrol security purposes; providing visual and verbal information for the purpose of assisting localities, emergency response personnel, first responders, community managers and agencies to act in a coordinated manner in times of local emergencies; providing consultation and information to emergency response personnel and officials, first responders, community managers and agencies in the nature of creating a common operating picture to allow for resource and asset coordination and exchange for response in emergency and crisis situations; incident reconstruction services, namely, after-action analysis, review and investigation of emergency, accident, and crises incidents
A spool has a cylinder, a first flange coupled to a first end of the cylinder and a second flange coupled to a second end of the cylinder. A compressible material surrounds the cylinder and an optical fiber is wrapped around the compressible material. When tension is applied to the optical fiber the compressible material can be deformed to reduce the tension on the optical fiber. When submerged underwater the water pressure will not compress the compressible material.
F16L 1/12 - Laying or reclaiming pipes on or under water
B65H 75/42 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools or machines
B65H 75/14 - Kinds or types of circular or polygonal cross-section with two end flanges
71.
Methods and apparatus for interleaving priorities of a plurality of virtual processors
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Van Schaik, Carl Frans
Abstract
Methods and apparatus for interleaving priorities of a plurality of virtual processors are disclosed. A hypervisor assigns a base priority to each virtual processor and schedules one or more virtual processors to execute on one or more physical processors based on the current priority associated with each virtual processor. When the hypervisor receives an indication from one of the virtual processors that its current priority may be temporarily reduced, the hypervisor lowers the current priority of that virtual processor. The hypervisor then schedules another virtual processor to execute on a physical processor instead of the virtual processor with the temporarily reduced priority. When the hypervisor receives an interrupt for the virtual processor with the lowered priority, the hypervisor raises the priority of that virtual processor and schedules the virtual processor with the restored priority to execute on a physical processor so that processor can handle the interrupt.
G06F 13/26 - Handling requests for interconnection or transfer for access to input/output bus using interrupt with priority control
G06F 13/24 - Handling requests for interconnection or transfer for access to input/output bus using interrupt
G06F 13/34 - Handling requests for interconnection or transfer for access to input/output bus using combination of interrupt and burst mode transfer with priority control
G06F 9/48 - Program initiating; Program switching, e.g. by interrupt
An optical sensing system includes a transmitter assembly for generating a generated signal having a frequency in an optical wavelength. An optical sensing fiber is coupled to the transmitter assembly for receiving the generated signal and producing a reflected signal from backscattering of the generated signal. The system also includes a receiver assembly coupled to the optical sensing fiber for receiving the reflected signal. The system further includes a controller in communication with the receiver assembly for determining environmental effects imposed on the optical sensing fiber based on characteristics of the reflected signal.
G02B 6/00 - Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
G01D 5/353 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
G01K 11/32 - Measuring temperature based on physical or chemical changes not covered by group , , , or using changes in transmittance, scattering or luminescence in optical fibres
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computer software and hardware for use in securing access to computer networks and digital transmissions [ Computer network design for others that specifically implement security measures to provide secure network operations ]
74.
Dual mode fiber optic cable system for underwater remotely operated vehicle
A cable containing an optical fiber is used to transmit data between an underwater remotely operated vehicle (ROV) and a support vessel floating on the surface of the water. The ROV pulls the cable through the water and as the ROV dives away from the support vessel, the optical fiber is released from the support vessel. Excess tension in the cable can damage the optical fiber and the tension can be highest close to the ROV. To prevent potential damage to the optical fiber, the ROV can store a portion of the cable and release the cable if the detected tension approaches the maximum working load. When the tension drops to a lower safe level, the release mechanism can stop releasing the cable.
B63B 21/00 - Tying-up; Shifting, towing, or pushing equipment; Anchoring
B63C 11/34 - Diving chambers with mechanical link, e.g. cable, to a base
G01L 5/10 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
B65H 75/42 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material mobile or transportable attached to, or forming part of, mobile tools or machines
B63C 11/42 - Diving chambers with mechanical link, e.g. cable, to a base of closed type with independent propulsion or directional control
H02G 11/02 - Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum
H02G 1/10 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle in or under water
75.
Method and apparatus for rapid acquisitions of GPS signals in space applications
A global positioning system (GPS) receiver that is configured to rapidly acquire GPS signals in space applications and a method for rapidly acquiring GPS signals in space applications is disclosed. In an embodiment, the GPS receiver includes, but is not limited to, a GPS signal acquisition component. The GPS signal acquisition component is adapted to acquire a GPS signal by receiving data from the GPS signal and processing the data to detect the GPS signal.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Matulis, Gary
Barsoum, Magued
Hassan, Owais
Pacheco, John
Abstract
Systems and methods are described for managing channel selection among a plurality of mesh points in a wireless network. In one embodiment, a method includes receiving a first announcement that includes channel exclusion information from a first mesh point; managing a distributed channel exclusion list based on the announcement; and generating a second announcement to the first mesh point based on the channel exclusion list.
A diabetes management system having a reliable data management scheme is disclosed. The system comprises a plurality of devices, each device performing a different function relating to treatment of diabetes. Each device has a device identifier and generates data records. Each device includes a metadata generator configured to generate a metadata tag for a data record generated by the device. A metadata tag includes the device identifier of the corresponding device, a record identifier, and a source identifier indicating whether the record was originated by a human or the device. The system further includes a diabetes management device. When a device generates a new record, the metadata generator generates a new record identifier and a new metadata tag based on the new record identifier and the device identifier of the device. The first device propagates the new record and the new metadata tag to the diabetes management device.
A system for locating an object in a GPS-denied environment includes first and second stationary nodes of a network and an object out of synchronization with a common time base of the network. The system includes one or more processors that are configured to estimate distances between the first stationary node and the object and a distance between the second stationary node and the object by comparing time-stamps of messages relayed between the object and the nodes. A position of the object can then be trilaterated using a location of each of the first and second stationary nodes and the measured distances between the object and each of the first and second stationary nodes.
G01S 1/24 - Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations
G01S 5/14 - Determining absolute distances from a plurality of spaced points of known location
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
G01S 11/08 - Systems for determining distance or velocity not using reflection or reradiation using radio waves using synchronised clocks
An optical fiber cable has a transparent core for transmitting optical data and a biodegradable protective covering. When placed in water, the protective covering dissolves in water after a few days. The raw remaining optical fiber cover is very thin, approximately 0.003 inches in diameter and very fragile. The optical core is easily broken into fine particles which becomes sand on the sea floor.
A spool has a cylinder, a first flange coupled to a first end of the cylinder and a second flange coupled to a second end of the cylinder. A compressible material surrounds the cylinder and an optical fiber is wrapped around the compressible material. When tension is applied to the optical fiber the compressible material can be deformed to reduce the tension on the optical fiber. When submerged underwater the water pressure will not compress the compressible material.
An optical fiber management system for a remotely operated vehicle (ROV) includes a spool containing a length of optical cable, a motor coupled to the spool, a motor controller, a speed sensor and a feed mechanism. The motor controller can detect the speed of the ROV through water and control the rotational speed of the motor so that the optical cable is removed from the spool at a speed that is equal to or greater than the speed of the ROV. A feed mechanism is used to apply a tension to the optical cable so that it is removed from the spool and emitted from the ROV without becoming tangled.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Cochran, Bruce Alton
Abstract
Embodiments include methods and apparatus for performing symbol timing synchronization for a symbol-bearing signal. The symbol-bearing signal is sampled to produce a plurality of symbol samples. First-direction interpolation processes are performed on the plurality of symbol samples in a first temporal direction, where the first temporal direction is a direction from a first sampling time towards a second sampling time. In addition, second-direction interpolation processes are performed on the symbol samples in a second temporal direction, where the second temporal direction is a direction from the second sampling time towards the first sampling time, resulting in a set of interpolated symbol samples.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
35 - Advertising and business services
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Batteries, battery chargers, sonar equipment, cameras, and computer software for operation of underwater vehicles Underwater vehicles and structural components thereof and accessories therefor, namely, autonomous and remotely operated underwater vehicles comprised of a vehicle body and one or more of the following components and accessories: sonar equipment, operational sensors, cameras and operating software, batteries and battery chargers sold together as a unit [ Marine operations services, namely, business operations in the marine and underwater vehicle industry ] Marine operations services, namely, operating autonomous and remotely operated underwater vehicles; operating research ships; and ship charter services Marine engineering services; consulting in the field of marine engineering; underwater exploration services; marine operations services, namely, marine engineering services
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
35 - Advertising and business services
39 - Transport, packaging, storage and travel services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Batteries, battery chargers, sonar equipment, cameras, and computer software for operation of underwater vehicles Underwater vehicles and structural components thereof and accessories therefor, namely, autonomous and remotely operated underwater vehicles comprised of a vehicle body and one or more of the following components and accessories: sonar equipment, operational sensors, cameras and operating software, batteries and battery chargers sold together as a unit [ Marine operations services, namely, business operations in the marine and underwater vehicle industry ] Marine operations services, namely, operating autonomous and remotely operated underwater vehicles; operating research ships; and ship charter services Engineering services; consulting in the field of engineering; underwater exploration services; marine operations services, namely, marine engineering services
A system and method for rotating a source image by a first non-zero angle is provided. The method includes: defining a template for the source image, the template representing a rotation of the source image about an axis of the source image by second angle, where the second angle is the negative of the first non-zero angle; determining overlap between the template and the source image; separating the template into a plurality of strips covering at least the area of overlap; and for each strip: indentifying an initial pixel in the source image within the strip and storing the image data of the initial pixel; storing the image data of all remaining pixels within both the strip and the overlap in a database format in which the all remaining pixels is defined by a Y and X offset from the initial pixel.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Orlando, Gerardo
King, David
Krumpoch, Mark
Abstract
Systems and methods efficiently process digests, hashes or other results by performing multiplicative functions in parallel with each other. In various embodiments, successive processing stages are provided, with each stage performing parallel multiplicative functions and also combining input terms to reduce the total number of terms that remain to be processed. By progressively combining the active terms into a smaller number of terms for subsequent processing, the time needed to process a result can be significantly reduced.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Kleider, John
Smith, Anthony
Abstract
A communication system is provided that includes a transmitter device and a receiver device. The transmitter device transmits input data as a transmitted signal having the known non-linear distortion (NLD) characteristic. The receiver receives a received signal that represents a channel affected version of the transmitted signal and that has the known NLD characteristic. The received signal includes power amplifier distortion (PAD) induced by the transmitter device's power amplifier. The receiver is designed to iteratively estimate, based on the known NLD characteristic, remaining PAD caused by the power amplifier, and to iteratively cancel estimated PAD to reduce PAD in the received signal.
H04B 1/38 - Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
H04L 25/03 - Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
H04L 25/49 - Transmitting circuits; Receiving circuits using three or more amplitude levels
88.
Methods and apparatus for fast context switching in a virtualized system
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Warton, Matthew John
Vanschaik, Carl Frans
Abstract
The present disclosure provides methods and apparatus for fast context switching in a virtualized system. In the disclosed system, a globally unique application-space identifier is associated with each guest application. No two applications share the same application-space identifier, even if the two applications reside in different virtual machines. Domain identifiers are used to ensure that a guest's mappings are only active when that guest is executing. A unique domain identifier is associated with each virtual machine, and all translation lookaside buffer entries thereby mapping the guest's kernel pages with that domain value. All other mappings are tagged with a predefined domain such as zero. In addition, a virtual memory management unit may be configured to support two virtual page table pointers and a configurable boundary between a virtual user page table and a virtual kernel page table. In such an instance, the two virtual page table pointers are presented to a guest operating system, and two physical page table pointers are associated with the two virtual page table pointers.
A cable includes an outer jacket of polyethylene surrounding a plurality of conductive wires. Each one of the plurality of insulated conductive wires comprises a conductive core and an insulating layer surrounding the conductive core, the insulating layer being made of cross-linked polyethylene.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Kleider, John E.
Hamilton, Benjamin Russell
Abstract
Embodiments include methods for determining synchronization/pilot sequences (SPS) to be utilized in conjunction with transmissions by antennas of a multiple-antenna transmitter. The SPS include pilot signals that are positioned at subcarriers that are orthogonal in frequency with subcarriers at which pilot signals of other antennas are positioned. The pilot signals may be unevenly spaced across the in-band subcarriers. The multiple-antenna transmit system generates a plurality of wireless signals, each of which may include an SPS having synchronization information in a first plurality of in-band subcarriers and the pilot signals in a second plurality of in-band subcarriers. The wireless signals are simultaneously radiated over a wireless communication channel using a different antenna. A receiver receives channel-affected versions of the wireless signals, and produces a corrected signal by applying corrections to the received signal based on estimated channel perturbations within the received signal.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Blanchard, Scott David
Bahr, Randall K.
Abstract
A wireless network (20) with at least a first radio communication unit (24) and a second radio communication unit (26) transmits and receives signals with minimal interference from the surrounding environment of the first unit (24) and second unit (26). The first radio communication unit (24) determines frequencies (54) having power level above a threshold (52), and creates a list of these frequencies (50) to be transmitted to the second radio communication unit (26). The second radio communication unit (26) places notches (140) in its transmission band (88) based on frequencies (54) in the list (50), reserved frequencies (132), and local frequencies (92) having signal energy above a threshold (90). When transmitting a signal (42), the second radio communication unit (26) avoids transmitting in frequencies that have notches (140).
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Creary, Jamey Mario
Handly, Paul Robert
Armstrong, Andrew Daniel
Abstract
A cryptographic system (100) and methodology executable within the cryptographic system (100) enable the use of a programmable logic device PLD (108) in a single chip cryptographic design flow for secure cryptographic services. Methodology for secure configuration of the PLD (108) within a cryptographic system 100 entails secure configuration and authentication (202), functional verification (204), configuration key reload capability (206), traffic key load capability (208) using a split key technique, isolation between command and key fill domains for secure key fill (210) of key material, redundant system instantiation (212), and high speed comparison for secure operation.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Yee, David Moon
Smorowski, Jr., Gerard Anthony
Aragaki, Taul Eric
Wormley, Mark Lawrence
Warthman, James Lynn
Abstract
A base station (26) provides service in a satellite communications (SATCOM) system (22) to a terminal (24). The SATCOM system (22) operates in accordance with a first standard (43), and the terminal (24) is unable to communicate in accordance with the first standard (43). Methodology entails receiving, at a SATCOM resource controller (32), a request (62) for a satellite resource (46) from the base station (26). The satellite resource (46) is allocated to the base station (26) and the controller (32) sends a message (58) with the allocated satellite resource (46). The base station (26) applies a second standard (48), defining a specific set of functional and performance characteristics, to the satellite resource (46). The terminal (24) is enabled to perform satellite communications in accordance with the second standard (48) using the satellite resource (46).
A system for connecting circuit boards is provided. A plurality of overlapping spaced apart circuit boards have a plurality of conductive pins passing through holes in the circuit boards. A connector includes a flexible sheet insulator and a plurality of conductive surfaces separated and supported by the flexible insulator. At least one of the conductive surfaces has a hole there through and a bent compliant lead extending there from. The hole engages one of the pins, and the complaint lead connects to one of the circuit boards.
H01R 43/20 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
A method and apparatus for recovering at least one signal of interest are provided. The method includes receiving an overall signal, the overall signal including the at least one signal of interest and a plurality of other signals, identifying at least one of the strongest components of the plurality of other signals, attenuating, using at least one MEMS resonator, any of the components identified by the identifying, wherein the overall signal will be modified to include the at least one signal of interest, attenuated versions of the components identified by the identifying, and the remaining portions of the plurality of other signals that were not subject to the attenuating, and recovering, after the attenuating, the at least one signal of interest.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Blanchard, Scott David
Orcutt, Edward Kerry
Vanden Heuvel, Dean Paul
Abstract
Systems and methods are described for efficiently transmitting packetized data from a sender to a receiver over a communications link. A compression context is established between the sender and the receiver based upon commonalities in each of the data packets prior to transmitting the data over the communications link. The data is compressed according to the compression context to thereby create compressed data packets, and the compressed data packets are transmitted to the receiver across the communications link. By establishing compression contexts prior to transmission, the need for in-band signaling is reduced or eliminated.
A connector system is provided. The system includes a substantially circular interconnecting hub, and a plurality of circuit board bays configured substantially radially around the substantially circular interconnecting hub. Each circuit board bay has a plurality of aligned connectors configured to receive a circuit board. The interconnecting circuit hub has, for each individual circuit board bay, a direct data pathway connecting the individual circuit board bay to all remaining circuit board bays of the plurality of circuit board bays. Each of the plurality of circuit board bays can directly communicate through the interconnecting hub with each of the remaining circuit boards bays.
H01R 12/00 - Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, ; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Kleider, John Eric
Arneson, Steve Henry
Chuprun, J. Scott
Nolan, Keith Matthew
Hughes, Derrick Duane
Abstract
In an embodiment, a receiver includes an antenna configured to receive a communication frame. The communication frame may include an acquisition code symbol sequence, which in turn may include a plurality of acquisition code symbols. In an embodiment, an acquisition code symbol includes a subcode sequence having a plurality of subcodes. A receiver also may include a correlation calculator coupled to the antenna. The correlation calculator may be configured to determine a correlation between the subcodes of the received communication frame and a stored version of the subcodes. The correlation may be used in determining a timing offset for further processing of the communication frame.
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC (USA)
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS, INC. (USA)
GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
Inventor
Kleider, John Eric
Arneson, Steve Henry
Abstract
Embodiments include methods and apparatus for verifying the detection of a correlation peak, which may represent an acquisition of a received acquisition code symbol sequence. The method includes determining a series of coherently-aligned peaks from a series of correlation peaks. Determining the plurality of coherently-aligned peaks includes correcting a frequency offset and a phase offset for each of the plurality of correlation peaks. A coherent match filter process is performed on the plurality of coherently-aligned peaks. A detection of the correlation peak may be verified when the match filter result exceeds a threshold.
