Abstract

Various countermeasure dispensing systems (or CMDSs) and method of use are described herein. CMDS may include a dispenser assembly operably engaged with a platform where at least one electrical connection provides electrical communication between the dispenser assembly and a sequencer. CMDS may also include a magazine assembly operably engaged with the dispenser assembly, wherein the magazine assembly comprises a magazine configured to hold at least two countermeasure expendables. CMDS may also include a breechplate assembly operably engaged with the magazine assembly and adapted to dispense the at least two countermeasure expendables. CMDS may also include at least one magazine identification switch (MIS) operably engaged with the magazine assembly and the breechplate assembly. CMDS may also include that the at least one MIS is configured to enable the sequencer and the breechplate assembly to selectively dispense at least one countermeasure expendable from the at least two countermeasure expendables.

IPC Classes  ?

• F41A 19/68 - Electric firing mechanisms for multibarrel guns
• F41A 19/70 - Electric firing pins; Mountings therefor
• F42B 5/15 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances for creating a screening or decoy effect, e.g. using radar chaff or infrared material
• F42B 12/70 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling for dispensing discrete solid bodies for dispensing radar chaff or infrared material
• F41A 17/06 - Electric or electromechanical safeties
• H01R 31/06 - Intermediate parts for linking two coupling parts, e.g. adapter

Abstract

Various countermeasure dispensing systems (or CMDSs) and method of use are described herein. CMDS may include a dispenser assembly operably engaged with a platform where at least one electrical connection provides electrical communication between the dispenser assembly and a sequencer. CMDS may also include a magazine assembly operably engaged with the dispenser assembly, wherein the magazine assembly comprises a magazine configured to hold at least two countermeasure expendables. CMDS may also include a breechplate assembly operably engaged with the magazine assembly and adapted to dispense the at least two countermeasure expendables. CMDS may also include at least one magazine identification switch (MIS) operably engaged with the magazine assembly and the breechplate assembly. CMDS may also include that the at least one MIS is configured to enable the sequencer and the breechplate assembly to selectively dispense at least one countermeasure expendable from the at least two countermeasure expendables.

IPC Classes  ?

• B64D 1/02 - Dropping, ejecting, or releasing articles
• B64D 7/02 - Arrangement of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft the armaments being firearms

Abstract

The system and method for mounting a high power laser having a coefficient of thermal expansion that is thermally matched for the gain medium and the mount. In some cases, the gain medium is clamped by the mount along longitudinal edges and has a pair of free ends not in thermal contact with the mount. A thermal interface may be present along at least a portion of the longitudinal edges.

IPC Classes  ?

• H01S 3/042 - Arrangements for thermal management for solid state lasers
• H01S 3/06 - Construction or shape of active medium
• H01S 3/091 - Processes or apparatus for excitation, e.g. pumping using optical pumping
• H01S 3/0933 - Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of a semiconductor, e.g. light emitting diode
• H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
• H01S 3/16 - Solid materials
• H01S 5/02315 - Support members, e.g. bases or carriers
• H01S 5/024 - Arrangements for thermal management
• H01S 5/04 - Processes or apparatus for excitation, e.g. pumping
• H01S 5/10 - Construction or shape of the optical resonator

Abstract

A method for a system for security evaluation includes working one state at a time; identifying primitives of interest and systematically applying relevant attacks for the system; starting at chip level, working through states, and then expanding a system boundary and repeating; following a sequence of: chip>circuit card>subsystem>system>platform for a product solution under analysis; determining if a system definition has sufficient detail, or is too abstract; for a chip with a native secure boot protocol, determining if all players are represented; representing attacks as vectors made up of measurements of the following attributes: Dollars, days, Probability of success, Probability of destruction, technology node, and number of samples; and representing countermeasures as vectors made up of scaling factors for each of attack attributes.

IPC Classes  ?

• 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
• G06F 9/4401 - Bootstrapping
• G06Q 10/0635 - Risk analysis of enterprise or organisation activities
• G06Q 10/0637 - Strategic management or analysis, e.g. setting a goal or target of an organisation; Planning actions based on goals; Analysis or evaluation of effectiveness of goals
• G06Q 10/0639 - Performance analysis of employees; Performance analysis of enterprise or organisation operations
• G06Q 10/067 - Enterprise or organisation modelling
• G06Q 10/0875 - Itemisation or classification of parts, supplies or services, e.g. bill of materials
• G06Q 10/101 - Collaborative creation, e.g. joint development of products or services

Abstract

A system and methods of an active protection system (or “APS”) for a platform. The APS has a threat cueing sensor provided at a first position on the platform where the threat cueing sensor detects a threat launched from a threat guidance system at a distance away from the platform. The APS also has a logic system operably connected to the threat cueing sensor where the logic system is adapted to determine an estimated location of the threat guidance system via a distance away from the platform. The APS also has a laser source operably connected to the logic system where the laser source emits a countermeasure beam directed at the estimated location of the threat guidance system to deter the threat away from the platform.

IPC Classes  ?

• G06N 20/00 - Machine learning
• F41H 11/02 - Anti-aircraft or anti-guided missile defence installations or systems
• F41H 13/00 - Means of attack or defence not otherwise provided for
• 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

Abstract

The system and method generates a pulse or a signal that is transmitted between a central processing unit or processor and an Ethernet integrated circuit card to program a trigger generator in the IC. The pulse is effectively a 1PPS signal that is provided to the IC, which may be in the form a field programmable gate array to enable timing synchronization. The trigger in the IC may also generates an interrupt to the processor so a driver in the CPU is instructed to set the next trigger. For the trigger to be accurately controlled, the control routine is implemented in the driver existing in kernel space rather than user space. A routine or protocol periodically polls the interrupt to determine when the trigger must be reset.

Abstract

Techniques are provided for employing an embedded software defined radio (SDR) in a navigation system. A navigation system implementing the techniques according to an embodiment includes a global positioning system (GPS) receiver configured to acquire and track received GPS signals. The system also includes an SDR configured to process received communication signals. The communication signals include timing data. The SDR is further configured to calculate position and navigation data based on a combination of the processed communication signals and the tracked GPS signals provided by the GPS receiver. The system further includes a system timer configured to provide a common time base for use by the GPS receiver and the SDR. The navigation system is implemented in an application specific integrated circuit (ASIC).

IPC Classes  ?

• H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission
• G01S 19/31 - Acquisition or tracking of other signals for positioning
• 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

Abstract

Techniques are provided for dynamic performance enhancement of radio frequency (RF) based systems. A system implementing the techniques according to an embodiment includes a waveform decoder configured to perform message decoding operations on a received RF signal waveform and to provide a decoding validation result for the message decoding operations. The system also includes a waveform attribute analyzer configured to analyze physical characteristics of the received RF signal waveform and to provide an attribute validation result for the physical characteristics. The system further includes a statistics analyzer configured to generate a statistic based on the decoding validation results and the attribute validation results and a thresholding system configured to generate anomaly detection based on a comparison of the generated statistic to a threshold value. In some embodiments, the RF signal waveform is an Identification Friend or Foe (IFF) transponder waveform or an IFF interrogator waveform.

IPC Classes  ?

• G01S 13/82 - Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
• G01S 13/78 - Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
• G01S 7/28 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of pulse systems
• G01S 19/46 - Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
• 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 17/74 - Systems using reradiation of electromagnetic waves other than radio waves, e.g. IFF, i.e. identification of friend or foe

Abstract

Techniques are provided for employing an embedded software defined radio (SDR) in a navigation system. A navigation system implementing the techniques according to an embodiment includes a global positioning system (GPS) receiver configured to acquire and track received GPS signals. The system also includes an SDR configured to process received communication signals. The communication signals include timing data. The SDR is further configured to calculate position and navigation data based on a combination of the processed communication signals and the tracked GPS signals provided by the GPS receiver. The system further includes a system timer configured to provide a common time base for use by the GPS receiver and the SDR. The navigation system is implemented in an application specific integrated circuit (ASIC).

IPC Classes  ?

• G01S 19/37 - Hardware or software details of the signal processing chain

Abstract

An antenna element suited for direction finding (DF) with omni-directional radiation patterns utilizing a pair of chevron slots fed using a ridged waveguide magic tee (magic-t) and connected microstrip probes. The provided antenna element provides improved performance, power handling, and improved bandwidth compared to current monocone and/or slot antenna elements. The antenna element may be further realized utilizing additive manufacturing processes in combination with standard metal and polymer production techniques.

IPC Classes  ?

• 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
• H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome
• H01Q 1/48 - Earthing means; Earth screens; Counterpoises
• H01Q 13/10 - Resonant slot antennas

Abstract

Techniques are provided for dynamic performance enhancement of radio frequency (RF) based systems. A system implementing the techniques according to an embodiment includes a waveform decoder configured to perform message decoding operations on a received RF signal waveform and to provide a decoding validation result for the message decoding operations. The system also includes a waveform attribute analyzer configured to analyze physical characteristics of the received RF signal waveform and to provide an attribute validation result for the physical characteristics. The system further includes a statistics analyzer configured to generate a statistic based on the decoding validation results and the attribute validation results and a thresholding system configured to generate anomaly detection based on a comparison of the generated statistic to a threshold value. In some embodiments, the RF signal waveform is an Identification Friend or Foe (IFF) transponder waveform or an IFF interrogator waveform.

IPC Classes  ?

• G01S 7/02 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
• G01S 7/28 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of pulse systems
• G01S 7/292 - Extracting wanted echo-signals
• G01S 7/36 - Means for anti-jamming
• G01S 13/78 - Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe

Abstract

A guidance kit for a projectile and method for suppressing a point-of-interest (POI) at a desired location away from the POI. The guidance kit includes at least one processor in the guidance kit. The guidance kit also includes a guidance protocol operatively in communication with the guidance kit and the at least one processor and having a set of angular offset modes. The guidance protocol of the guidance kit is configured to guide the projectile to at least one location relative to a desired point-of-interest (POI) upon or in response to activation of at least one angular offset mode of the set of angular offset modes.

IPC Classes  ?

• F41G 7/22 - Homing guidance systems
• F41G 7/36 - Direction control systems for self-propelled missiles based on predetermined target position data using inertial references

Abstract

Techniques and architectures are disclosed for a system capable of creating large changes in buoyancy that can be incorporated into underwater vehicles, embodiments of the system utilizing edge-welded, metal bellows disposed within a pressure vessel to balance a pressure differential across the bellows while using the bellows to displace fluid and thereby alter the buoyancy of a vehicle on which the system is disposed.

IPC Classes  ?

• B63G 8/22 - Adjustment of buoyancy by water ballasting; Emptying equipment for ballast tanks
• F16J 3/04 - Bellows

Abstract

An underwater sensing system includes a cable structure, a water surface mount coupled to the cable structure, and a processor. The cable structure is configured to be deployed in a vertical orientation underwater and includes one or more sensors along a length of the cable structure. The one or more sensors are configured to detect maritime data associated with one or more marine-based parameters in an underwater maritime region around the cable structure. The water surface mount is configured to be at least partially exposed above a surface of the underwater maritime region and includes a transmitter configured to transmit the maritime data. The processor is configured to access a maritime model comprising parameters associated with the maritime region and update the maritime model based on the maritime data. The maritime model can be used as an input, or otherwise made accessible, to a navigation system of an underwater vehicle.

IPC Classes  ?

• G01C 13/00 - Surveying specially adapted to open water, e.g. sea, lake, river or canal
• G01N 33/18 - Water

Abstract

Techniques are provided for a radiation hardened memory system. A memory system implementing the techniques according to an embodiment includes a redundancy comparator configured to detect differences between data stored redundantly in a first memory, a second memory, and a third memory. The redundancy comparator is further configured to identify a memory error based on the detected differences. The memory system also includes an error collection buffer configured to store a memory address associated with the memory error, and a memory scrubber circuit configured to overwrite, at the memory address associated with the memory error, erroneous data with corrected data. The corrected data is based on a majority vote among the three memories. The memory system further includes a priority arbitrator configured to arbitrate between the memory scrubber overwriting and functional memory accesses associated with software execution performed by a processor configured to utilize the memory system.

IPC Classes  ?

• G06F 11/10 - Adding special bits or symbols to the coded information, e.g. parity check, casting out nines or elevens
• G06F 11/18 - Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits, e.g. by quadding or by majority decision circuits
• G11C 8/00 - Arrangements for selecting an address in a digital store
• H03K 19/003 - Modifications for increasing the reliability
• H03M 13/00 - Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes

Abstract

The system and method generates a pulse or a signal that is transmitted between a central processing unit or processor and an Ethernet integrated circuit card to program a trigger generator in the IC. The pulse is effectively a 1PPS signal that is provided to the IC, which may be in the form a field programmable gate array to enable timing synchronization. The trigger in the IC may also generates an interrupt to the processor so a driver in the CPU is instructed to set the next trigger. For the trigger to be accurately controlled, the control routine is implemented in the driver existing in kernel space rather than user space. A routine or protocol periodically polls the interrupt to determine when the trigger must be reset.

IPC Classes  ?

• G06F 1/12 - Synchronisation of different clock signals
• H04J 3/06 - Synchronising arrangements
• G06F 15/78 - Architectures of general purpose stored program computers comprising a single central processing unit

Abstract

Techniques to dynamically adjust the corner frequency of a high-pass filter in response to a time-domain amplitude value of an output signal, thereby preserving accuracy while promptly recovering the signal's baseline value. A system can be configured to filter frequency-domain values of an input signal based on a filtering characteristic. The filtering characteristic can be set dynamically in response to a time-domain value of an amplitude of an output signal. The filtering characteristic can comprise a corner frequency, and the system can include a high-pass filter configured to filter out frequency components at frequencies lower than the corner frequency. The system is configured to dynamically change the corner frequency from a first value to a second value, in response to the time-domain value of the amplitude crossing a threshold value. The system may dynamically change the corner frequency within a time interval after the crossing.

IPC Classes  ?

• H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission
• H04B 1/16 - Circuits

Abstract

Techniques to dynamically adjust the corner frequency of a high-pass filter in response to a time-domain amplitude value of an output signal, thereby preserving accuracy while promptly recovering the signal's baseline value. A system can be configured to filter frequency-domain values of an input signal based on a filtering characteristic. The filtering characteristic can be set dynamically in response to a time-domain value of an amplitude of an output signal. The filtering characteristic can comprise a corner frequency, and the system can include a high-pass filter configured to filter out frequency components at frequencies lower than the corner frequency. The system is configured to dynamically change the corner frequency from a first value to a second value, in response to the time-domain value of the amplitude crossing a threshold value. The system may dynamically change the corner frequency within a time interval after the crossing.

IPC Classes  ?

• H04L 25/49 - Transmitting circuits; Receiving circuits using three or more amplitude levels
• G11B 20/12 - Formatting, e.g. arrangement of data block or words on the record carriers

Abstract

Techniques and architectures are disclosed for a system capable of creating large changes in buoyancy that can be incorporated into underwater vehicles, embodiments of the system utilizing edge-welded, metal bellows disposed within a pressure vessel to balance a pressure differential across the bellows while using the bellows to displace fluid and thereby alter the buoyancy of a vehicle on which the system is disposed.

IPC Classes  ?

• B63G 8/22 - Adjustment of buoyancy by water ballasting; Emptying equipment for ballast tanks
• B63G 8/24 - Automatic depth adjustment; Safety equipment for increasing buoyancy, e.g. detachable ballast, floating bodies

Abstract

The disclosed method enables efficient registration and correction of random vertical and horizontal offsets of a plurality of images of a feature to enable combination thereof with maximum noise suppression. The method includes obtaining image cross correlations and estimating correlation peaks. If a correlation peak cannot be uniquely determined for a given correlation, all candidates are retained. An improved robust weighted regression is applied thereto to obtain estimates of the image shifts. Dimensional symmetry is exploited to remove redundancy from the weighted normal equation, and computational requirements are further reduced by analytically determining the coefficients matrix and the inhomogeneous matrix, thereby circumventing conventional computations. Solution of the resulting consistent, full rank, linear system requires only matrix inversion. For N images, the present method thereby increases computation speed and reduces storage by approximately N2.

IPC Classes  ?

• G06T 3/40 - Scaling of a whole image or part thereof
• G06T 3/00 - Geometric image transformation in the plane of the image
• G06F 17/11 - Complex mathematical operations for solving equations

Abstract

A switch assembly and a method of effecting a battery to initiate. The switch assembly includes a support that is adapted to operably engage with a battery. The switch assembly also include a slide operably engaged with the support and moveable in a first direction relative to the support between a primed position and a released position. The switch assembly also includes a cover operably engaged with the support and enclosing the slide. The switch assembly also includes a firing pin mechanism operably engaged with the support, the slide, and the cover and moveable in a second direction relative to the slide and the support. In the switch assembly, the second direction of the firing pin mechanism is different than the first direction of the slide.

IPC Classes  ?

• F42C 15/21 - Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing pin using spring action
• H01H 9/02 - Bases, casings, or covers
• H01H 3/32 - Driving mechanisms, i.e. for transmitting driving force to the contacts

Abstract

An underwater sensing system includes a cable structure, a water surface mount coupled to the cable structure, and a processor. The cable structure is configured to be deployed in a vertical orientation underwater and includes one or more sensors along a length of the cable structure. The one or more sensors are configured to detect maritime data associated with one or more marine-based parameters in an underwater maritime region around the cable structure. The water surface mount is configured to be at least partially exposed above a surface of the underwater maritime region and includes a transmitter configured to transmit the maritime data. The processor is configured to access a maritime model comprising parameters associated with the maritime region and update the maritime model based on the maritime data. The maritime model can be used as an input, or otherwise made accessible, to a navigation system of an underwater vehicle.

IPC Classes  ?

• G01N 29/44 - Processing the detected response signal

Abstract

A system for front end protection of an RF receiver against interfering pulsed high power RF signals includes a dual-diode device comprising a first Transient Voltage Suppressor (TVS) diode; and a second TVS diode; wherein the first TVS diode and the second TVS diode are located between an RF input/output and an RF receiver front end.

IPC Classes  ?

• H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
• G01S 13/78 - Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe

Abstract

Techniques are provided for a radiation hardened memory system. A memory system implementing the techniques according to an embodiment includes a redundancy comparator configured to detect differences between data stored redundantly in a first memory, a second memory, and a third memory. The redundancy comparator is further configured to identify a memory error based on the detected differences. The memory system also includes an error collection buffer configured to store a memory address associated with the memory error, and a memory scrubber circuit configured to overwrite, at the memory address associated with the memory error, erroneous data with corrected data. The corrected data is based on a majority vote among the three memories. The memory system further includes a priority arbitrator configured to arbitrate between the memory scrubber overwriting and functional memory accesses associated with software execution performed by a processor configured to utilize the memory system.

IPC Classes  ?

• G06F 11/07 - Responding to the occurrence of a fault, e.g. fault tolerance
• G06F 3/06 - Digital input from, or digital output to, record carriers
• G06F 11/14 - Error detection or correction of the data by redundancy in operation, e.g. by using different operation sequences leading to the same result

Abstract

The system and method of projectile flight management using a combination of radio frequency orthogonal interferometry for the long range navigation and guidance of one or more projectiles that does not need to be accurate all the way to the ground based on the use of larger artillery. The system provides for more accurate targeting, especially in GPS-denied and GPS-limited environments.

IPC Classes  ?

• F41G 7/28 - Radio guidance systems
• F41G 7/00 - Direction control systems for self-propelled missiles
• F41G 7/22 - Homing guidance systems

Abstract

Techniques are provided for a transimpedance amplifier (TIA). A TIA implementing the techniques according to an embodiment includes a pre-amplifier stage configured to amplify an input signal. The pre-amplifier stage includes a first P-channel metal oxide semiconductor field effect transistor (MOSFET) (P1), a second P-channel MOSFET (P2), a first N-channel MOSFET (N1), and a second N-channel MOSFET (N2), coupled in series. The gates of P1 and N2 are driven by the input signal. The output of the pre-amplifier stage is provided at a coupling between the drain of P2 and the drain of N1. The pre-amplifier stage also includes an active resistor network configured to provide a variable resistance based on a provided current bias generated from a gain control signal. The active resistor network is coupled between the gate of P1 and the drain of P2. The variable resistance is used to control the gain of the pre-amplifier stage.

IPC Classes  ?

• H03F 3/08 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
• H03F 1/08 - Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
• H03F 3/45 - Differential amplifiers

Abstract

Techniques are provided for a polyphase filtering in a dynamically reconfigurable two times (2×) oversampled channelizer. A polyphase filter implementing the techniques according to an embodiment includes a first plurality of dual port memory circuits and a multiplexer circuit configured to distribute input data for storage to the first plurality of dual port memory circuits. The polyphase filter also includes a second plurality of dual port memory circuits configured to store polyphase filter coefficients and a data alignment crossbar circuit configured to align the input data stored in the first plurality of dual port memory circuits with the polyphase filter coefficients stored in the second plurality of dual port memory circuits. The polyphase filter further includes a multiply circuit configured to perform multiplications of the aligned input data with the polyphase filter coefficients and an adder circuit to sum the results of the multiplications to generate a filtered output.

IPC Classes  ?

• H03H 17/02 - Frequency-selective networks
• G06F 7/50 - Adding; Subtracting
• G06F 7/523 - Multiplying only

Abstract

Techniques are provided for a fast Fourier transform (FFT) butterfly circuit. A circuit implementing the techniques according to an embodiment includes a first multiplexer configured to select a first channel or a delayed version of a second channel based on a frame index associated with the first or second channel; a second multiplexer configured to select the channel that was not selected by the first multiplexer; and a butterfly core circuit. The butterfly core circuit configured to receive a delayed version of the selected channel from the first multiplexer as a top butterfly branch; receive the selected channel from the second multiplexer as a bottom butterfly branch; apply FFT twiddle factors to the bottom butterfly branch to generate a scaled bottom butterfly branch; and generate sum and difference channel outputs of the top butterfly branch and the scaled bottom butterfly branch.

IPC Classes  ?

• G06F 17/14 - Fourier, Walsh or analogous domain transformations

Abstract

Techniques are provided for a dynamically reconfigurable two times (2×) oversampled channelizer. A channelizer implementing the techniques according to an embodiment includes a polyphase filter, a two phase reorder circuit, a fast Fourier transform (FFT) circuit, and a two phase merge circuit. The polyphase filter is configured to filter time domain input data to control spectral shaping of frequency bins of the channelizer output. The two phase reorder circuit is configured to split a 2× oversampled data stream into two parallel, critically sampled data streams. The FFT circuit is configured to transform each stream into the frequency domain. The two phase merge circuit is configured to merge the two streams of frequency domain data into a single stream of 2× oversampled frequency domain data for distribution onto frames of frequency bins. Reconfigurable parameters for the channelizer include filter coefficients, number of filter folds, and number of frequency bins.

IPC Classes  ?

• G06F 17/14 - Fourier, Walsh or analogous domain transformations
• H04B 1/18 - Input circuits, e.g. for coupling to an antenna or a transmission line
• H04L 25/03 - Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
• H03H 17/02 - Frequency-selective networks

Abstract

Techniques are provided for a fast Fourier transform (FFT) sample reorder circuit for a dynamically reconfigurable oversampled channelizer. An FFT sample reorder circuit implementing the techniques according to an embodiment includes a plurality of dual port memory circuits. The circuit also includes a first crossbar circuit configured to route input data samples to write ports of the plurality of dual port memory circuits. The circuit further includes a second crossbar circuit configured to route reordered output data samples from read ports of the plurality of dual port memory circuits to a multi-stage FFT circuit. The circuit further includes a controller circuit configured to control the routing of the input data samples and the routing of the reordered output data samples based on a selection of a stage of the multi-stage FFT circuit.

IPC Classes  ?

• H04L 27/26 - Systems using multi-frequency codes
• G06F 17/14 - Fourier, Walsh or analogous domain transformations

Abstract

A system for front end protection of an RF receiver against interfering pulsed high power RF signals includes a dual-diode device comprising a first Transient Voltage Suppressor (TVS) diode; and a second TVS diode; wherein the first TVS diode and the second TVS diode are located between an RF input/output and an RF receiver front end.

IPC Classes  ?

• H01L 27/02 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
• H01H 9/04 - Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
• G01S 17/74 - Systems using reradiation of electromagnetic waves other than radio waves, e.g. IFF, i.e. identification of friend or foe

Abstract

A system that includes a plurality of encapsulation blocks having a plurality of digital signal processing (DSP) blocks provided with preconfigured logic functions and a plurality of pacing control networks operatively connected with the plurality of DSP blocks. The system also includes a streaming cross bar operatively connected with each encapsulation block of the plurality of encapsulation blocks. Each encapsulation block of the plurality of encapsulation blocks includes a DSP block of the plurality of DSP blocks and a pacing control network of the plurality of the pacing control networks. Each DSP block of the plurality of DSP blocks is independently and separately connected with the streaming cross bar via the plurality of pacing control networks.

IPC Classes  ?

• G06F 13/40 - Bus structure
• G06F 21/62 - Protecting access to data via a platform, e.g. using keys or access control rules

Abstract

A Simultaneous Transmit and Receive (STaR) system utilizing high power transmitters and high sensitivity receivers in conjunction with one or more signal polarizers to maintain far-field polarization efficiency for both transmission and reception of same (or similar) frequency content at the same time. This STaR system maintains far-field polarization efficiency to remote target(s) while simultaneously introducing a near-field polarization mismatch between the transmission and receiver subsystems for higher isolation and reduced coupling.

IPC Classes  ?

• G01S 7/02 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
• G01S 7/03 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver

Abstract

A system that includes a plurality of encapsulation blocks having a plurality of digital signal processing (DSP) blocks provided with preconfigured logic functions and a plurality of pacing control networks operatively connected with the plurality of DSP blocks. The system also includes a streaming cross bar operatively connected with each encapsulation block of the plurality of encapsulation blocks. Each encapsulation block of the plurality of encapsulation blocks includes a DSP block of the plurality of DSP blocks and a pacing control network of the plurality of the pacing control networks. Each DSP block of the plurality of DSP blocks is independently and separately connected with the streaming cross bar via the plurality of pacing control networks.

IPC Classes  ?

• G06F 13/372 - Handling requests for interconnection or transfer for access to common bus or bus system with decentralised access control using a time-dependent priority, e.g. individually loaded time counters or time slot
• G06F 13/24 - Handling requests for interconnection or transfer for access to input/output bus using interrupt
• G06F 15/173 - Interprocessor communication using an interconnection network, e.g. matrix, shuffle, pyramid, star or snowflake
• G06F 21/74 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information operating in dual or compartmented mode, i.e. at least one secure mode

Abstract

An encapsulation block for a digital signal processing (DSP) block. The encapsulation block includes DSP block having an input terminal, an output terminal, and an input clock. The encapsulation block also includes pacing control network operatively connected with the input terminal, the output terminal, and the input clock of the DSP block. The input terminal of the DSP block is configured to receive a samples-in data stream inputted at a predefined clock period defined by the input clock. The output terminal of the DSP block is configured to receive a samples-out data stream outputted at a predefined paced parameter. The pacing control network is configured to control data flow at the samples-in data stream and the samples-out data stream independently of the DSP block.

IPC Classes  ?

• G06F 15/78 - Architectures of general purpose stored program computers comprising a single central processing unit
• G06F 13/38 - Information transfer, e.g. on bus
• G06F 13/16 - Handling requests for interconnection or transfer for access to memory bus

Abstract

The system and method for mounting a high power laser having a coefficient of thermal expansion that is thermally matched for the gain medium and the mount. In some cases, the gain medium is clamped by the mount along longitudinal edges and has a pair of free ends not in thermal contact with the mount. A thermal interface may be present along at least a portion of the longitudinal edges.

IPC Classes  ?

• H01S 3/04 - Arrangements for thermal management
• H01S 3/06 - Construction or shape of active medium
• H01S 3/02 - Constructional details

Abstract

An encapsulation block for a digital signal processing (DSP) block. The encapsulation block includes DSP block having an input terminal, an output terminal, and an input clock. The encapsulation block also includes pacing control network operatively connected with the input terminal, the output terminal, and the input clock of the DSP block. The input terminal of the DSP block is configured to receive a samples-in data stream inputted at a predefined clock period defined by the input clock. The output terminal of the DSP block is configured to receive a samples-out data stream outputted at a predefined paced parameter. The pacing control network is configured to control data flow at the samples-in data stream and the samples-out data stream independently of the DSP block.

IPC Classes  ?

• G06F 9/30 - Arrangements for executing machine instructions, e.g. instruction decode
• G06F 9/44 - Arrangements for executing specific programs
• H03K 19/17728 - Reconfigurable logic blocks, e.g. lookup tables
• H04L 12/46 - Interconnection of networks
• H04W 28/02 - Traffic management, e.g. flow control or congestion control
• G06F 30/34 - Circuit design for reconfigurable circuits, e.g. field programmable gate arrays [FPGA] or programmable logic devices [PLD]
• G06F 13/42 - Bus transfer protocol, e.g. handshake; Synchronisation
• G06F 15/80 - Architectures of general purpose stored program computers comprising an array of processing units with common control, e.g. single instruction multiple data processors

Abstract

A soft-kill countermeasure system utilizing a confirmation device, which may be radar, to enhance existing countermeasures, and enable new countermeasures to be utilized to combat the ever evolving and increasing sophistication of threats. The threat defeat confirmation may allow for rapid or immediate redirection of the countermeasure system to address additional simultaneous threats. The confirmation device can be mounted on a gimbal head or above a gimbal to take advantage of slewing movement to direct the confirmation signal towards the threat.

IPC Classes  ?

• F41H 11/02 - Anti-aircraft or anti-guided missile defence installations or systems
• 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

Abstract

An optical bench utilizing narrowband optical filters on precision rotary stages that can provide custom tuning of the operational frequencies of the optical bench while maintaining the ability to switch between narrowband and wideband operation thereof. The precision rotary filters may further provide dynamic reconfiguration of the optical bench to alternate frequencies for intersystem compatibility, the enablement of additional self-test capabilities, and easing the manufacturing tolerances thereof.

IPC Classes  ?

• H04B 10/50 - Transmitters
• H04B 10/61 - Coherent receivers

Abstract

A hybrid RADAR and communication system provides both RADAR and wireless communication (COMMS) that share the same antenna, transmit and receive amplifiers, and other hardware, thereby reducing size, weight, and power requirements. In embodiments, COMMS implementation only requires adding additional software to a RADAR system. Embodiments are EW/COMMS systems that provide electronic warfare and wireless communication. EW/COMMS embodiments facilitate communication in hostile environments by enabling data exchange at any frequency within a broad EW frequency range. Communication signals can be obfuscated by interleaving them with EW waveforms at the same RF frequency. Collaborative communication between EW systems is enhanced by reducing EW communication lag times. Systems with physically distinct broadband and narrow band receivers can negotiate data exchange timing and frequencies by exchanging low power, low data rate control signals that are detected by the broadband receiver, while subsequent high density data bursts are received by the narrowband receiver.

IPC Classes  ?

• G01S 7/36 - Means for anti-jamming
• H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission
• H04W 12/037 - Protecting confidentiality, e.g. by encryption of the control plane, e.g. signalling traffic

Abstract

A logic power network provided in an application-specific integrated circuit (ASIC). The ASIC includes a central processor. The ASIC also includes at least one intellectual property (IP) core operatively connected with the central processor and having a set of electrical components provided therein. The ASIC also includes a network-on-chip (NOC) operatively connected with the central processor and the at least one IP core. The ASIC also includes a logic power network operatively connected with the central processor, the at least one IP core and the set of electrical components therein, and the NOC. The logic power network is adapted to control power of the at least one IP core and the set of electrical components provided in the at least one IP Core individually and separately.

IPC Classes  ?

• G06F 15/78 - Architectures of general purpose stored program computers comprising a single central processing unit
• H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate

Abstract

A logic power network provided in an application-specific integrated circuit (ASIC). The ASIC includes a central processor. The ASIC also includes at least one intellectual property (IP) core operatively connected with the central processor and having a set of electrical components provided therein. The ASIC also includes a network-on-chip (NOC) operatively connected with the central processor and the at least one IP core. The ASIC also includes a logic power network operatively connected with the central processor, the at least one IP core and the set of electrical components therein, and the NOC. The logic power network is adapted to control power of the at least one IP core and the set of electrical components provided in the at least one IP Core individually and separately.

IPC Classes  ?

• G06F 15/78 - Architectures of general purpose stored program computers comprising a single central processing unit
• H01L 29/78 - Field-effect transistors with field effect produced by an insulated gate

Abstract

A port protection network provided with a joint test action group (JTAG) core and method of use. The port protection network includes an agent device operatively connected with a streaming bus and a test access port (TAP) of the JTAG core. The port protection network also includes a master device operatively connected with the streaming bus and the TAP of the JTAG core. In the port protection network, the agent device is configured to selectively restrict access to the master device through the JTAG core.

IPC Classes  ?

• G01R 31/3185 - Reconfiguring for testing, e.g. LSSD, partitioning

Abstract

A transceiver includes a radio frequency (RF) input, an RF channelized digital receiver, an RF wideband digital receiver, an analog-to-digital converter (ADC)/digital-to-analog converter (DAC), an RF channelized digital transmitter, and an RF output. The RF channelized digital receiver is configured to split an analog RF input signal into a plurality of sub-octave contiguous frequency band channels and to convert the channels to a plurality of first digital signals. The RF wideband receiver is configured to convert the analog RF input signal into a second digital signal. The ADC/DAC is configured to process each of the first and second digital signals to produce a plurality of third digital signals. The RF channelized digital transmitter is configured to convert each of the third digital signals into a plurality of analog output signals, to combine the analog output signals into an analog RF output signal, and to transmit the analog RF output signal.

IPC Classes  ?

• H04B 1/40 - Circuits

Abstract

A programmable radio frequency (RF) memory system includes a receiver designed to receive an RF pulse, a memory, a waveform transform module, and a transmitter. The memory stores a digitized version of the RF pulse. The waveform transform module is designed to determine one or more characteristics of the digitized version of the RF pulse, and based on the determined one or more characteristics, transform the digitized version of the RF pulse into a transformed signal. The transformed signal has at least one characteristic that is different than the one or more characteristics. The transmitter is designed to transmit an analog equivalent of the transformed signal. The analog equivalent of the transformed signal and the received RF pulse are coherent.

IPC Classes  ?

• H04K 3/00 - Jamming of communication; Counter-measures
• G01S 7/02 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
• G01S 7/38 - Jamming means, e.g. producing false echoes

Abstract

A guidance kit for a projectile and method for suppressing a point-of-interest (POI) at a desired location away from the POI. The guidance kit includes at least one processor in the guidance kit. The guidance kit also includes a guidance protocol operatively in communication with the guidance kit and the at least one processor and having a set of angular offset modes. The guidance protocol of the guidance kit is configured to guide the projectile to at least one location relative to a desired point-of-interest (POI) upon or in response to activation of at least one angular offset mode of the set of angular offset modes.

IPC Classes  ?

• F41G 7/36 - Direction control systems for self-propelled missiles based on predetermined target position data using inertial references

Abstract

A sequencer for use with a countermeasure defense system includes an input signal indicative of firing an expendable, a circuit card that receives the input signal indicative of firing the expendable and an output analog signal from the circuit card that fires the expendable. The parameters of the output analog signal correspond to parameters of a digital waveform.

IPC Classes  ?

• H03K 19/173 - Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
• B64D 7/00 - Arrangement of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft
• F41H 11/02 - Anti-aircraft or anti-guided missile defence installations or systems
• H03F 3/04 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only

Abstract

Techniques are provided for a multi-frequency sampling system. A system implementing the techniques according to an embodiment includes a first bandpass filter to filter a radio frequency (RF) signal to generate a first filtered signal in a first frequency band, and a second bandpass filter to filter the RF signal to generate a second filtered signal in a second frequency band. The system also includes a first analog to digital converter (ADC) operating at a first sampling frequency to convert the first filtered signal to a first digital signal and a second ADC operating at a second sampling frequency to convert the second filtered signal to a second digital signal. The first frequency band is selected to avoid a first Nyquist boundary zone associated with the first sampling frequency and the second frequency band is selected to avoid a second Nyquist boundary zone associated with the second sampling frequency.

IPC Classes  ?

• H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission
• H04B 1/58 - Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa

Abstract

Correlation interferometry direction finding (CIDF) processes that significantly improve processing time and cut memory requirements relative to the current memory requirements are provided herein. The presently disclosed processes further may utilize only the real portion of the correlation coefficient of the RF signal to further increase processing speed and decrease memory requirements while simultaneously improving direction finding accuracy and reducing the number of wild bearings reported.

IPC Classes  ?

• G01S 3/48 - Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
• G01S 3/02 - 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
• 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

Abstract

Techniques are provided for a multi-frequency sampling system. A system implementing the techniques according to an embodiment includes a first bandpass filter to filter a radio frequency (RF) signal to generate a first filtered signal in a first frequency band, and a second bandpass filter to filter the RF signal to generate a second filtered signal in a second frequency band. The system also includes a first analog to digital converter (ADC) operating at a first sampling frequency to convert the first filtered signal to a first digital signal and a second ADC operating at a second sampling frequency to convert the second filtered signal to a second digital signal. The first frequency band is selected to avoid a first Nyquist boundary zone associated with the first sampling frequency and the second frequency band is selected to avoid a second Nyquist boundary zone associated with the second sampling frequency.

IPC Classes  ?

• H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission
• H04B 1/58 - Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa

Abstract

An athermal and achromatic lens with a high resolution while further being near orthoscopic and providing a large field of view. Further, the provided VNIR lens may utilize only three types of optical glass allowing the lens to be reduced in size, cost, and weight while further reducing or minimizing the complexity thereof.

IPC Classes  ?

• G02B 13/14 - Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
• G02B 13/06 - Panoramic objectives; So-called "sky lenses"

Abstract

A sealing arrangement having at least two seals for providing a sealing force against a rotating shaft in underwater applications. A replaceable fin assembly comprising a cartridge and a control fin for manned and unmanned underwater vehicles having the sealing arrangement.

IPC Classes  ?

• F16J 15/3268 - Mounting of sealing rings
• F16J 15/00 - Sealings
• F16J 15/3212 - Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings with metal springs

Abstract

A digital radio includes an input configured to receive an input signal and an analog-to-digital converter (ADC) configured to sample analog data in the input signal into a digital input signal. The digital input signal has first digital data encoded at a first data rate modulated at a first frequency. The digital radio further includes a signal processor configured to generate, based on the digital input signal, a digital output signal having second digital data encoded at a second data rate modulated at a second frequency. The first data rate is different from the second data rate and/or the first frequency is different from the second frequency. The digital radio further includes an output configured to provide the digital output signal to a target device, where the second data rate and the second frequency match a frequency plan of the target device.

IPC Classes  ?

• H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission

Abstract

A thin film-retaining washer with custom geometry that may further provide for a simple press-on installation while maintaining retention of fasteners during assembly, shipping, handling, and/or use of associated systems. The present retaining hardware is easily manufactured from sheet or film materials with minimal post-processing and may be scaled and optimized for use with multiple size and style of fasteners. Further, the thickness profile of the thin film retaining hardware facilitates lobe spring deflection to further provide secure retention of the associated fasteners.

IPC Classes  ?

• F16B 43/00 - Washers or equivalent devices; Other devices for supporting bolt-heads or nuts

Abstract

A method of recognizing a pattern in a signal is provided. The method includes receiving, by a processor and at an input, the signal comprising data; converting, by the processor and based on a plurality of features, the data from the signal into a collection of features; identifying, by the processor, one or more feature-to-feature transitions between features in the collection of features; plotting, by the processor, a directed graph of each of the feature-to-feature transitions, wherein each unique feature in the collection of features is represented by a single vertex and each feature-to-feature transition is represented by a directed edge between two vertices weighted by a corresponding number of each of the feature-to-feature transitions; and detecting, by the processor, a pattern in the data by comparing the weight of each of the feature-to-feature transitions in the directed graph to a user-defined threshold.

IPC Classes  ?

• G06F 17/18 - Complex mathematical operations for evaluating statistical data

Abstract

A content based video organization, prioritization, and retrieval system and method utilizes metadata contained or included with or inferred from image frames of a video stream obtained from a sensor carried by a platform. The metadata are indexed and stored for processing to automatically create workflows depicting resultant images of a target, object, or location of interest. The workflows can be incorporated with a representation or graph based on the metadata that is time agnostic with respect to when the image frame containing the metadata was obtained by the sensor.

IPC Classes  ?

• G06T 7/11 - Region-based segmentation
• G06T 17/05 - Geographic models
• G06F 16/29 - Geographical information databases
• G06T 7/00 - Image analysis
• G06T 5/00 - Image enhancement or restoration

Abstract

Predicting whether objects in an image form a scattered minefield (SMF) is accomplished by a system and method utilizing at least one non-transitory computer readable storage medium having instructions stored thereon. When the instructions are executed by a processor, the instructions implement operations to determine whether the objects define a SMF based on an estimation of a distribution process from which the MLOs are positioned on the surface in the image obtained from the image sensor.

IPC Classes  ?

• F41H 11/13 - Systems specially adapted for detection of landmines
• G06V 20/60 - Type of objects
• G06V 20/17 - Terrestrial scenes taken from planes or by drones
• G06T 7/70 - Determining position or orientation of objects or cameras

Abstract

A method of determining a schedule for a pointing device includes distributing targets among a plurality of groups and assigning schedules to the groups, after which the groups and group schedules are not modified. A partial pointing schedule is successively grown by selecting a list of remaining groups, and appending a best candidate sub-schedule for the list to the partial schedule. If a sub-schedule cannot be found for which the grown partial schedule meets all applicable requirements, the partial schedule is pruned to a previous state and a different, previously evaluated sub-schedule is appended to the pruned partial schedule to attempt re-growth. Groups, group schedules, lists, and sub-schedules can be selected according to values, dwell times, and/or windows of performance of the targets, groups, and sub-schedules. If no schedule is found that meets all requirements, a missed group can be excluded from the schedule.

IPC Classes  ?

• H04W 72/12 - Wireless traffic scheduling
• H04W 72/04 - Wireless resource allocation

Abstract

A content based video organization, prioritization, and retrieval system and method utilizes metadata contained or included with or inferred from image frames of a video stream obtained from a sensor carried by a platform. The metadata are indexed and stored for processing to automatically create workflows depicting resultant images of a target, object, or location of interest. The workflows can be incorporated with a representation or graph based on the metadata that is time agnostic with respect to when the image frame containing the metadata was obtained by the sensor.

IPC Classes  ?

• G06V 20/40 - Scenes; Scene-specific elements in video content
• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G06V 10/26 - Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
• G06V 20/17 - Terrestrial scenes taken from planes or by drones
• G06F 16/787 - Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using geographical or spatial information, e.g. location
• G06F 16/75 - Clustering; Classification

Abstract

A secure system includes a data port, a network on chip (NoC) module, a processor communicatively coupled to the NoC module, a communication interface operatively coupled to the processor and to the data port, an electronic field-programmable gate array (eFPGA) configuration module operatively coupled to the NoC module, and a clock operatively coupled to the NoC module. In a first modality, the communication interface is at least partially disabled. In a second modality, the communication interface is at least partially disabled, boundary scan operations are disabled, a RESET signal is held in a constant state, and/or redacted code is rendered inoperable. In a third modality, the communication interface is at least partially enabled to send and receive commands and data via the data port, the boundary scan operations are enabled, the RESET signal is not held in the constant state, and/or the redacted code is operable.

IPC Classes  ?

• G06F 30/30 - Circuit design

Abstract

A digital radio includes an input configured to receive an input signal and an analog- to-digital converter (ADC) configured to sample analog data in the input signal into a digital input signal. The digital input signal has first digital data encoded at a first data rate modulated at a first frequency. The digital radio further includes a signal processor configured to generate, based on the digital input signal, a digital output signal having second digital data encoded at a second data rate modulated at a second frequency. The first data rate is different from the second data rate and/or the first frequency is different from the second frequency. The digital radio further includes an output configured to provide the digital output signal to a target device, where the second data rate and the second frequency match a frequency plan of the target device.

IPC Classes  ?

• H04L 27/00 - Modulated-carrier systems
• H04B 1/06 - Receivers
• H04B 1/40 - Circuits

Abstract

A transceiver unit includes an enclosure, a first input port, a second input port, a first output port, and a second output port. A radio frequency (RF) pass-through path is within the enclosure between the first input port and the first output port and includes a gain module. The RF pass-through path is configured to receive a first RF signal at the first input port and to transmit a second RF signal at the first output port. The gain module is configured to amplify the first RF signal to produce the second RF signal. The transceiver unit further includes a transceiver path within the enclosure between the second input port and the second output port, the transceiver path including a signal processor.

IPC Classes  ?

• H04B 1/40 - Circuits

Abstract

A signal acquisition and tracking device includes an input configured to receive a global navigation satellite system (GNSS) signal, a software-based processor configured to execute software instructions to acquire the GNSS signal via the input and to generate, based on the acquired signal, one or more signal tracking parameters, and a hardware logic circuit operatively coupled to the processor. The logic circuit is configured to track the GNSS signal independently of the processor using the one or more signal tracking parameters generated by the processor. In some examples, the processor is configured to pull in and center the GNSS signal in time and frequency, and the logic circuit is further configured to track the pulled in and centered GNSS signal independently of the processor. In some examples, the processor acquires the signal and then hands-off control to the logic circuit for subsequent tracking of the signal.

IPC Classes  ?

• 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 19/24 - Acquisition or tracking of signals transmitted by the system
• G01S 19/31 - Acquisition or tracking of other signals for positioning
• G01S 19/30 - Acquisition or tracking of signals transmitted by the system code related
• G01S 19/37 - Hardware or software details of the signal processing chain

Abstract

A transimpedance amplifier system (TIA) for stabilizing high gain and high frequency signals while minimizing parasitic capacitance effects on the transimpedance amplifier system. The TIA includes an operational amplifier having a first input terminal, a second input terminal, and an output terminal. The TIA also includes a signal generating device operatively connected with the first input terminal of the operational amplifier. The TIA also includes a T-network feedback architecture operatively connected with the operational amplifier at the first input terminal of the operational amplifier and the output terminal of the operational amplifier. The T-network feedback architecture has a first impedance network and a second impedance network. The T-network feedback architecture is configured to suppress parasitic capacitance from the transimpedance amplifier system.

IPC Classes  ?

• H03F 1/42 - Modifications of amplifiers to extend the bandwidth
• H03F 3/45 - Differential amplifiers

Abstract

A transimpedance amplifier system (TIA) for stabilizing high gain and high frequency signals while minimizing parasitic capacitance effects on the transimpedance amplifier system. The TIA includes an operational amplifier having a first input terminal, a second input terminal, and an output terminal. The TIA also includes a signal generating device operatively connected with the first input terminal of the operational amplifier. The TIA also includes a T-network feedback architecture operatively connected with the operational amplifier at the first input terminal of the operational amplifier and the output terminal of the operational amplifier. The T-network feedback architecture has a first impedance network and a second impedance network. The T-network feedback architecture is configured to suppress parasitic capacitance from the transimpedance amplifier system.

IPC Classes  ?

• H03F 1/08 - Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
• H03F 1/38 - Positive-feedback circuit arrangements without negative feedback
• H03F 1/56 - Modifications of input or output impedances, not otherwise provided for
• H03F 3/45 - Differential amplifiers
• H03F 3/50 - Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
• H03F 3/189 - High-frequency amplifiers, e.g. radio frequency amplifiers
• H03F 1/26 - Modifications of amplifiers to reduce influence of noise generated by amplifying elements
• H03F 1/32 - Modifications of amplifiers to reduce non-linear distortion
• H03F 3/04 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only

Abstract

Nosecone and tailfin designs for aerodynamic systems are disclosed. The designs increase the usable volume within the fuselage of the aerodynamic system while still maintaining the same length for the aerodynamic system. In an example, the nosecone is truncated and includes a blunted tip compared to standard nosecone designs, which allows for more useable space along the length of the aerodynamic system. A tailfin structure is fabricated as a separate piece (separate from the fuselage of the aerodynamic system) and slips over a portion of one end of the fuselage, thus allowing useable volume within the fuselage beneath the tailfin structure. The tailfin structure also includes a hollow cavity for holding componentry (e.g., an RF transmitter, receiver, or transceiver device) with wires that feed through the tailfin structure and into the fuselage of the aerodynamic system.

IPC Classes  ?

• F42B 10/06 - Tail fins
• F42B 10/46 - Streamlined nose cones; Windshields; Radomes
• F42B 15/01 - Arrangements thereon for guidance or control

Abstract

A cognitive scheduler and asset allocation system to optimize electronic warfare (EW) resource allocation in reaction to RF signals observed in real-time without the need for prior collected data and without a predetermined scan schedule. The EW system of the present disclosure may further provide optimum resource allocation to minimize response time and to more effectively react to agile threat systems in an area of operations.

IPC Classes  ?

• G01S 7/36 - Means for anti-jamming

Abstract

A transceiver having a down-converter for converting a radio-frequency (RF) input signal to an intermediate frequency (IF) signal with an analog low latency bypass path coupled to the IF signal and configured to provide a low latency IF signal and an up-converter for converting an IF signal to an RF signal. There is a digital path coupled to the IF signal and configured to provide a digitally processed IF signal, and an up-converter for converting at least one of the low latency IF signal and the digitally processed IF signal to an RF output signal. In a further example, the down-converter and the up-converter convert to millimeter wave frequencies and filters the millimeter wave frequencies with cavity filters.

IPC Classes  ?

• H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission
• H04B 1/04 - Circuits
• H04B 1/74 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Abstract

A system for imaging includes both integration time gain and readout gain. It has a plurality of pixels comprising a frame, each pixel has a direct injection input with two Sample-and-Holds (SHs); a short integration time output; and a long integration time output. The integration time gain extends the range to higher fluxes with shorter integration times. A Read Out Integrated Circuit (ROIC) includes at least one column cell having a gain selection component where each of the short integration time output and the long integration time output are compared to a threshold, producing gain bits and an Analog to Digital Converter (ADC) producing data bits.

IPC Classes  ?

• H04N 5/353 - Control of the integration time
• H04N 5/357 - Noise processing, e.g. detecting, correcting, reducing or removing noise
• H04N 5/355 - Control of the dynamic range
• H04N 5/378 - Readout circuits, e.g. correlated double sampling [CDS] circuits, output amplifiers or A/D converters

Abstract

The system and method of projectile flight management using a combination of radio frequency orthogonal interferometry for the long range navigation and guidance of one or more projectiles and a short range navigation and guidance system to provide for more accurate targeting, especially in GPS-denied and GPS-limited environments.

IPC Classes  ?

• F41G 7/28 - Radio guidance systems
• F41G 7/22 - Homing guidance systems

Abstract

A pressure collet that operably engages with a die in which the pressure collet is configured to land on predetermined positions of the die without damaging said die, a perform, or a heat spreader during a reflow process. The pressure collet further comprises a plate that has a mounting surface and a plurality of contact pads that operably engages with the mounting surface of the plate. The plurality of contact pads is configured to apply pressure to predetermined positions of a die without the mounting surface of the plate contacting the die during a reflow process. The plate of the pressure collet is also formed of a first material and the plurality of contact pads are formed of a second material different than the first material.

IPC Classes  ?

• H01L 23/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details of semiconductor or other solid state devices
• B23K 1/00 - Soldering, e.g. brazing, or unsoldering
• B23K 3/08 - Auxiliary devices therefor

Abstract

A 3D-printed reflective optic providing very high specific stiffness through the utilization of a hollow shelled design, with closed back, filled with high-stiffness internal volumetric space-filling open-cell lattice structures. Structurally-integrated sacrificial structures are included for the purposes of reduction or elimination of tooling during post-processing operations.

IPC Classes  ?

• B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
• B33Y 80/00 - Products made by additive manufacturing
• B22F 10/47 - Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
• B22F 10/60 - Treatment of workpieces or articles after build-up
• B22F 10/64 - Treatment of workpieces or articles after build-up by thermal means
• B22F 10/66 - Treatment of workpieces or articles after build-up by mechanical means

Abstract

Techniques are disclosed for determining a true bearing angle from an airborne platform to a source of a radar signal. In an embodiment, a grid is generated based on a coarse range to, and angle-of-arrival of, an electromagnetic signal. The grid represents a geographic area thought to contain the emission source. A measured spatial angle is computed for each pulse of the signal received during a data collection interval. Hypothesized spatial angles are computed for a point in each grid box in the grid. A score is generated for each grid point based on the computed hypothesized spatial angles for the grid point and the measured spatial angles. The grid point having the lowest score is identified as a seed location and is used to launch a Nelder-Mead algorithm that converges on a point in the grid. A true bearing angle to the source of a radar angle is computed to the point provided by the Nelder-Mead algorithm.

IPC Classes  ?

• 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 3/50 - Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being pulse modulated and the time difference of their arrival being measured
• G01S 5/06 - Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
• G01S 3/48 - Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
• G01S 3/56 - Conical-scan beam systems using signals indicative of the deviation of the direction of reception from the scan axis
• G01S 5/04 - Position of source determined by a plurality of spaced direction-finders

Abstract

The system and method for chromatic correlation interferometry direction finding (CIDF) used to resolve ambiguities. Ambiguities are overcome by correlating over a range of frequencies. In some cases, multiple (i.e., 2 or more) frequencies or a continuous range of frequencies are used to make a more robust correlation manifold. As the complex response manifold is frequency dependent, using a set of two or more manifolds provides a significant reduction of false peaks.

IPC Classes  ?

• G01S 13/42 - Simultaneous measurement of distance and other coordinates
• F41G 7/22 - Homing guidance systems

Abstract

A custom transport jumper utilizing local Common Object Request Broker Architecture protocols to intercept message data before the data is marshalled into a CDR package. The custom transport jumper may then utilize the Common Object Request Broker Architecture standard to allow communication between systems on different operating systems, in different programming languages, and/or on different computing hardware while allowing messages to be sent in a more efficient, more portable, and more easily policed manner.

IPC Classes  ?

• H04L 69/08 - Protocols for interworking; Protocol conversion
• G06F 9/54 - Interprogram communication

Abstract

An on-chip firewall circuit for providing secure on-chip communication is disclosed. The firewall circuit includes a configurable table of port IDs along with a configurable setting for each port ID to either provide the corresponding port ID with open access to the components of a secure enclave (SE) module or restricted access. If access is restricted, then the command is rerouted to a portion of the secure memory within the SE module, where it can be read only via a secure processing device within the SE module. The secure processing device may require additional verification of the port ID before executing the command stored within the secure memory. In this way, unsecure devices from outside of the SE module can be configured to have no direct access to any of the components within the SE module.

IPC Classes  ?

• G06F 21/72 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in cryptographic circuits
• G06F 21/74 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information operating in dual or compartmented mode, i.e. at least one secure mode
• G06F 21/76 - Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information in application-specific integrated circuits [ASIC] or field-programmable devices, e.g. field-programmable gate arrays [FPGA] or programmable logic devices [PLD]
• G06F 21/62 - Protecting access to data via a platform, e.g. using keys or access control rules

Abstract

The system and method represents a high-resolution, three-dimensional, multi-static precipitation RADAR approach that employs agile microsatellites, in formation and remotely coupled. This system and method uses multi-static RADAR interferometric methods implemented via a microsatellite formation to synthesize an effectively large (e.g., 15 m when using the Ku RF band) aperture to provide about 1 km horizontal resolution and about 125 m vertical resolution.

IPC Classes  ?

• G01S 13/90 - Radar or analogous systems, specially adapted for specific applications for mapping or imaging using synthetic aperture techniques
• G01S 13/95 - Radar or analogous systems, specially adapted for specific applications for meteorological use
• G01S 13/86 - Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
• G01S 7/292 - Extracting wanted echo-signals

Abstract

An on-chip firewall circuit for providing secure on-chip communication is disclosed. The firewall circuit includes a configurable table of port IDs along with a configurable setting for each port ID to either provide the corresponding port ID with open access to the components of a secure enclave (SE) module or restricted access. If access is restricted, then the command is rerouted to a portion of the secure memory within the SE module, where it can be read only via a secure processing device within the SE module. The secure processing device may require additional verification of the port ID before executing the command stored within the secure memory. In this way, unsecure devices from outside of the SE module can be configured to have no direct access to any of the components within the SE module.

IPC Classes  ?

• G06F 21/85 - Protecting input, output or interconnection devices interconnection devices, e.g. bus-connected or in-line devices
• G06F 12/14 - Protection against unauthorised use of memory

Abstract

The system and method of mixing pitch and roll commands from a flight control computer to produce fin deflections applied to as few as two fins to simultaneously produce both a rolling moment and a pitching moment. The system may be mechanical or digital where actuators can be linear or rotary, digital or analog. Deflections of the fins are generated which produce pitch and roll moments where addition of pitch and roll commands determines deflection commands to be sent to a first fin and subtraction of pitch and roll commands determines deflection commands to be sent to a second fin.

IPC Classes  ?

• F42B 10/26 - Stabilising arrangements using spin
• F42B 10/64 - Steering by movement of flight surfaces of fins

Abstract

A radio frequency (RF) receiver includes a transceiver, a programmable logic device (PLD), and a digitally tunable high-pass and low-pass filter bank. The transceiver is configured to receive a mission data file (MDF) specifying a plurality of RF frequencies to be tuned by the receiver and to convert the MDF into a binary file. The PLD is configured to receive the binary file from the transceiver and, based on the binary file, to transmit one or more commands that cause the filter bank to enter a selected one of a plurality of predefined filter states corresponding to one or more of the RF frequencies. In operation, the receiver receives an input signal and the filter bank dynamically filters the input signal in response to the one or more commands from the PLD.

IPC Classes  ?

• H04B 1/18 - Input circuits, e.g. for coupling to an antenna or a transmission line
• H04B 1/16 - Circuits
• H04B 1/709 - Correlator structure
• H04B 1/10 - Means associated with receiver for limiting or suppressing noise or interference
• H04B 1/7093 - Matched filter type

Abstract

Techniques are provided for a delay compensated analog beam forming network. A transceiver implementing the techniques according to an embodiment includes an array of circuit elements. Each of the circuit elements includes an analog frequency converter to up-convert an analog signal to radio frequency (RF) for transmission and to down-convert an RF signal to an analog signal for reception. The circuit element also includes an analog beam weighting circuit configured to apply a beam weight to both of the analog signals to form a beam for transmission and reception. The circuit element further includes an analog delay element configured to impart a time delay to the analog signals. The time delay is based on the position of the circuit element in the array and is selected to compensate for propagation delay of the analog signals along the electrical path that couples the circuit elements of the array, reducing beam squint.

IPC Classes  ?

• H04B 7/0426 - Power distribution
• H04B 7/0456 - Selection of precoding matrices or codebooks, e.g. using matrices for antenna weighting
• 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

Abstract

A laser transmission assembly for shearography and related systems utilizing transmissive geometric phase plate pairs in place of Risley prism pairs or movable mirrors therein. Transmissive geometric phase plates provide for a system that is more compact than systems utilizing mirrors or Risley prism pairs while maintaining or improving the adjustability of the system and further offering beamshaping to provide desired illumination patterns.

IPC Classes  ?

• G01B 9/02015 - Interferometers characterised by the beam path configuration
• G01B 9/02098 - Shearing interferometers
• G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
• G01N 21/45 - Refractivity; Phase-affecting properties, e.g. optical path length using Schlieren methods
• G01N 21/88 - Investigating the presence of flaws, defects or contamination

Abstract

A laser transmission assembly for shearography and related systems utilizing transmissive geometric phase plate pairs in place of Risley prism pairs or movable mirrors therein. Transmissive geometric phase plates provide for a system that is more compact than systems utilizing mirrors or Risley prism pairs while maintaining or improving the adjustability of the system and further offering beamshaping to provide desired illumination patterns.

IPC Classes  ?

• G02B 27/48 - Laser speckle optics
• G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
• G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge

Abstract

The system and method of retractable solar arrays for underwater vehicles. In some cases, the retractable solar arrays for underwater vehicles contain anti-biofouling mechanisms. The retractable solar arrays may extend in a linear or a fan-like manner. In some cases, the solar array may be wrapped around the outside of the underwater vehicle or within a cylindrical housing. In some cases the solar array is a single flexible member with a series of connected panels.

IPC Classes  ?

• B60L 8/00 - Electric propulsion with power supply from forces of nature, e.g. sun or wind
• B60G 8/00 -
• H02S 10/40 - Mobile PV generator systems
• H02S 30/20 - Collapsible or foldable PV modules
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor

Abstract

A digital imaging system is provided with direct view of an object, having: an optical element configured to allow visible light to pass therethrough to a user's eye and to redirect light of non-visible wavelengths away from the user's eye; a display disposed between the user's eye and the object; a digital camera mounted outside a field of view of the user's eye and configured to obtaining imaging data from the light of non-visible wavelength; a redirection optic disposed so as to redirect the light of non-visible wavelength to the digital camera; and an image processor configured to process the imaging data from the digital camera and output the data to the display such that an image generated from the imaging data from the digital camera overlays an image produced by the impingement of visible light on the user's eye following the visible light's passing through the optical element.

IPC Classes  ?

• G02B 27/01 - Head-up displays
• H04N 13/332 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
• G02B 30/35 - Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using reflective optical elements in the optical path between the images and the observer
• H04N 23/80 - Camera processing pipelines; Components thereof
• H04N 23/90 - Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
• G02B 30/36 - Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers using refractive optical elements, e.g. prisms, in the optical path between the images and the observer

Abstract

A dynamic controlling framework that is adapted to dynamically optimize existing routing decisions in an optimized link state routing (OLSR) platform to favor higher-bandwidth, lower-latency links in the active link database. The dynamic controlling framework includes a link probing tool that is in communication with OLSR platform where the link probing tool is adapted to dynamically measure estimated bandwidth, latency scores, or both estimated bandwidth and latency scores of active links in the active link database of the OLSR platform. The dynamic controlling framework includes a plug-in framework that is in communication with the OLSR platform and the link probing tool where the plugin framework is adapted to receive at least one link quality multiplier (LQM) metric computed by the link probing tool and to combine the at least one LQM metric with the OLSR platform's existing link quality (LQ) metric for enhancing route selection by the OLSR platform.

IPC Classes  ?

• H04L 45/12 - Shortest path evaluation
• H04L 45/00 - Routing or path finding of packets in data switching networks
• H04L 45/42 - Centralised routing
• H04L 43/0864 - Round trip delays
• H04L 43/12 - Network monitoring probes

Abstract

An asynchronous medium access control layer scheduler increases efficiency for directional mesh networks by removing extra overhead in the time slots. The efficiency is increased by dividing time slots into sub-slots to allow for a receiving node to be offset by at least one sub-slot from the transmitting node. This enables the scheduler to more efficiently schedule operations for the nodes so that nodes can be performing other functions rather than waiting to receive a transmission or waiting after transmitting a transmission. The sub-slots may be sized to approximate the transmission propagation time or time of flight delay.

IPC Classes  ?

• H04L 47/72 - Admission control; Resource allocation using reservation actions during connection setup
• H04L 7/00 - Arrangements for synchronising receiver with transmitter
• H04L 41/5003 - Managing SLA; Interaction between SLA and QoS
• H04L 47/56 - Queue scheduling implementing delay-aware scheduling
• H04W 48/16 - Discovering; Processing access restriction or access information
• H04W 72/0446 - Resources in time domain, e.g. slots or frames

Abstract

A multi-bit, asynchronous e-fuse macro, the macro comprising: the following inputs: an input output enable, a power on reset, a write address, an input write enable, a ground clamp enable, and a write clock; a plurality of e-fuse bits; a supply voltage configured to allow programming at least one of the e-fuse bits; at least one fuse output; and self-timing and control circuitry configured to perform signaling, wherein each of the inputs is in electrical communication with said e-fuse macro.

IPC Classes  ?

• G11C 17/16 - Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM using electrically-fusible links
• G11C 7/10 - Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
• G11C 29/18 - Address generation devices; Devices for accessing memories, e.g. details of addressing circuits

Abstract

The system for a collapsible direction finding antenna. The antenna comprising a rigid central portion and a plurality of foldable arms. The antenna is aerial/kite lifted once launched from a tube to provide increased line of sight above a surface. The antennas being launchable from a UUV, a user in the field, and the like. The antenna being a full azimuth direction finding antenna. In some cases, operating at a wide matched frequency of 1 to 6 GHz.

IPC Classes  ?

• H01Q 21/00 - Antenna arrays or systems
• H01Q 9/28 - Conical, cylindrical, cage, strip, gauze or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
• H01Q 11/04 - Non-resonant antennas, e.g. travelling-wave antenna with parts bent, folded, shaped, screened or electrically loaded to obtain desired phase relation of radiation from selected sections of the antenna
• H01Q 11/14 - Resonant antennas with parts bent, folded, shaped or screened or with phasing impedances, to obtain desired phase relation of radiation from selected sections of the antenna or to obtain desired polarisation effects

Abstract

A multi-bit, asynchronous e-fuse macro, the macro comprising: the following inputs: an input output enable, a power on reset, a write address, an input write enable, a ground clamp enable, and a write clock; a plurality of e-fuse bits; a supply voltage configured to allow programming at least one of the e-fuse bits; at least one fuse output; and self-timing and control circuitry configured to perform signaling, wherein each of the inputs is in electrical communication with said e-fuse macro.

IPC Classes  ?

• G11C 11/56 - Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using storage elements with more than two stable states represented by steps, e.g. of voltage, current, phase, frequency
• G11C 17/16 - Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM using electrically-fusible links
• G11C 17/18 - Auxiliary circuits, e.g. for writing into memory

Abstract

The system and method for a scalable optically pumped CO2 laser. The optically pumped CO2 laser having a Tm fiber laser configured to pump a Q-switched Ho laser that is configured to pump a molecular isotopologue mix of CO2 above atmospheric pressure, to produce a broadband, high energy, tunable output beam.

IPC Classes  ?

• H01S 3/223 - Gases the active gas being polyatomic, i.e. containing two or more atoms
• H01S 3/067 - Fibre lasers
• H01S 3/11 - Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
• H01S 3/094 - Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
• H01S 3/16 - Solid materials
• H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude

Abstract

The system for an antenna assembly for use on unmanned underwater vehicles (UUV). The antennas are low-cost, lightweight, single-use, and have a small form factor amenable to use on a micro-UUV. A central post and pivotally attached arms form an antenna (e.g., a monopole) that is lifted via an aerial, kite, or the like, when deployed from the UUV to extend the line of site of the antenna several meters above the surface of the water. In some cases, the antenna may be used on a number of UUVs in a swarm formation.

IPC Classes  ?

• H01Q 1/08 - Means for collapsing antennas or parts thereof
• H01Q 1/12 - Supports; Mounting means
• 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 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome
• H01Q 9/04 - Resonant antennas

Abstract

Techniques and architecture are disclosed for a wireless fuze setter interface, comprising an electronics subsystem comprising a plurality of ports and a plurality of output interfaces having a common interface with the plurality of ports on the electronics subsystem. The plurality of output interfaces comprises an electrical energy transfer zone configured to provide electrical energy to the fuze, and a high speed data communications zone configured to transfer fuze setting data to the fuze. The wireless fuze setter interface provides fuze setting capability without the need for rotational or other physical alignment between the fuze and the fuze setter.

IPC Classes  ?

• F42C 17/04 - Fuze-setting apparatus for electric fuzes

Abstract

Techniques are provided for the generation of a calibration signal for use on an analog to digital converter (ADC). A system implementing the techniques according to an embodiment includes a calibration signal generator configured to generate a calibration tone, located in a first frequency band, in response to a calibration enable signal. The system also includes a signal summing circuit configured to generate an ADC input signal as a sum of a received signal and the calibration tone. The received signal is located in a second frequency band. The system further includes an ADC circuit configured to convert the ADC input signal to a baseband digital output signal and to perform self-calibration, based on the calibration tone, in response to the calibration enable signal. The frequency bands and the amplitude of the calibration tone are chosen to reduce interference between the received signal and the calibration tone.

IPC Classes  ?

• H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission
• H04B 17/21 - Monitoring; Testing of receivers for correcting measurements
• H04B 17/11 - Monitoring; Testing of transmitters for calibration
• H04B 1/16 - Circuits

Abstract

A transducer system comprising a housing, an electromechanical transducer within the housing, a wicking material adjacent to a portion of the electromechanical transducer, and a multi-phase coolant solution within the housing. The multi-phase coolant solution transitions from a first phase to a second phase in response to a temperature of the electromechanical transducer exceeding a threshold temperature. In some example cases, the multi-phase coolant solution has a boiling point of less than about 60° C., which effectively defines the threshold temperature. The multi-phase coolant solution may be chosen such that it remains a liquid during a first phase (cooling via conduction), and then evaporates during a second phase (cooling via conduction and convection) as the electromechanical transducer heats up.

IPC Classes  ?

• F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
• F28D 15/04 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes with tubes having a capillary structure
• G01S 7/521 - Constructional features

Goods & Services

Military communications system, namely, radio with data link capability for the purpose of coordinating battlefield communications; Secure communications systems consisting of digital processors, modulators, transmitters, receivers, and encryption hardware and software for secure algorithm processing devices for use with airborne, satellite, ground and sea-based information collection, transmission and analysis

Abstract

A stacked patch antenna is expandable from a thinner stowed configuration in which the gaps between the conductor layers are reduced, to a thicker deployed configuration in which the gaps are expanded to their required dimensions. The expansion mechanism can include rotation of threaded rods, pneumatic expansion of telescoping rods, and/or injection of a gas, a chemical sublimate, and/or an expandable foam into the gaps. In embodiments, the stowed thickness of the antenna can be approximately equal to the sum of the thicknesses of the conductor panels. In some of these embodiments high dielectric layers are not included. In other of these embodiments high dielectric layers are formed by filling gaps with a high dielectric foam. Embodiments implement aperture coupling to the stacked patch antenna. An array of the stacked patch antennae can be folded about a satellite until deployment, and can be planar when unfolded and deployed.

IPC Classes  ?

• H01Q 9/04 - Resonant antennas
• H01Q 1/48 - Earthing means; Earth screens; Counterpoises
• H01Q 1/10 - Telescopic elements
• H01Q 21/00 - Antenna arrays or systems

Abstract

An athermalized Short-Wave InfraRed (SWIR) telephoto lens for a tracking camera having, in order, from a remote object to an image plane an aperture stop, a first optical element having a first element first surface radius of 23.21 mm, a first element second surface radius of 46.25 mm, a second optical element having a second element first surface radius of 22.72 mm, a second element second surface radius of 45.58 mm, a third optical element having a third element first surface radius of -56.85 mm, a third element second surface radius of 16.65mm, where the lens is corrected over a spectral waveband of 1.5 μm to 1.6 μm from - 10C to +65C, has a length from the first element to the camera of 88 mm, has a telephoto ratio of 0.367, has an F# of 24, and has a focal length of 240 mm.

IPC Classes  ?

• G02B 13/02 - Telephoto objectives, i.e. systems of the type + – in which the distance from the front vertex to the image plane is less than the equivalent focal length
• G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements
• G02B 9/12 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only

Abstract

A method is provided for localizing an underwater vehicle using acoustic ranging. The method includes receiving, using an acoustic receiver, a time series signal based on one or more acoustic signals transmitted from an acoustic source having a known location; determining a travel time of the waveform from the known location of the acoustic source to the acoustic receiver; and determining a range of the underwater vehicle with respect to the acoustic source based on the travel time of the waveform and a sound speed field taken along a ray trajectory extending from the known location of the acoustic source and intersecting with the acoustic receiver at an expected arrival time and depth of the acoustic signal at the underwater vehicle.

IPC Classes  ?

• G01S 1/80 - Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional transducers or transducer systems spaced apart, i.e. path-difference systems
• G01S 5/22 - Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
• G01S 5/30 - Determining absolute distances from a plurality of spaced points of known location

Abstract

A three-loop inertial stabilization system with active jitter suppression and optical control to reduce line-of-sight (LOS) jitter based on platform induced motion in cantilevered gimbal systems. A first loop comprises at least one rate sensor, a Kalman state estimator, and a rate to angle module. A second loop comprises a mirror system, a focal plane and centroid processing module, an open-loop closed loop selector, a signal combiner and a loop integrator. A third loop comprises a fast steering mirror, offload module and at least one gimbal motor driver, wherein the three loops suppress the jitter of the cantilevered gimbal system.

IPC Classes  ?

• B64G 1/28 - Guiding or controlling apparatus, e.g. for attitude control using inertia or gyro effect
• H04B 7/185 - Space-based or airborne stations
• B64G 1/24 - Guiding or controlling apparatus, e.g. for attitude control
• F16F 15/00 - Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion