A mainlobe detection process can include a number of tests that are performed to define when the monopulse antenna system will transition from open loop scanning to closed loop scanning and then to tracking. A hybrid tracking technique is also provided which adaptively discovers and corrects for phase alignment error. Magnitude-only tracking can be performed initially to locate the nulls in the azimuth and elevation ratios and to identify the magnitudes of these ratios at these nulls. Phase tracking can be then performed. During phase tracking, phase corrections can be repeatedly applied to the azimuth and elevation difference channels to correct any phase error that may exist. During this process, the magnitudes of the ratios can be used to determine how the phase corrections should be adjusted. Once the hybrid tracking process is complete, the monopulse antenna system is properly phase-aligned and phase tracking will be correctly employed.
A mainlobe detection process can include a number of tests that are performed to define when the monopulse antenna system will transition from open loop scanning to closed loop scanning and then to tracking. A hybrid tracking technique is also provided which adaptively discovers and corrects for phase alignment error. Magnitude-only tracking can be performed initially to locate the nulls in the azimuth and elevation ratios and to identify the magnitudes of these ratios at these nulls. Phase tracking can be then performed. During phase tracking, phase corrections can be repeatedly applied to the azimuth and elevation difference channels to correct any phase error that may exist. During this process, the magnitudes of the ratios can be used to determine how the phase corrections should be adjusted. Once the hybrid tracking process is complete, the monopulse antenna system is properly phase-aligned and phase tracking will be correctly employed.
A fusion night vision system has a plurality of hinged joints that allow an operator to adjust the distance between the left eye piece and the right eyepiece while allowing a row of pixels from a display to be maintained viewable through the right eye piece parallel with an imaginary line formed by an optical axis of the left eye piece with an optical axis of the right eye piece.
G02B 23/18 - Housings; Caps; Mountings; Supports, e.g. with counterweight for binocular arrangements
G02B 23/12 - Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
H04N 5/232 - Devices for controlling television cameras, e.g. remote control
A monopulse antenna system can include a monopulse detector assembly (MDA) that is configured to steer a monopulse antenna based on the magnitude of an elevation ratio or azimuth ratio independently of the phase of the ratio. To prevent the direction of the monopulse antenna from being changed too frequently, the MDA can employ ratio bins to determine when the direction of the monopulse antenna should be reversed. Also, the MDA may enforce a hold period during which a change in the direction of the monopulse antenna will not be performed. The MDA can employ one or more mapping equations to generate a steering signal as a function of the magnitude of the ratio. The mapping equations can be selectively employed based on whether tracking is being performed at or near the ratio null.
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 13/66 - Radar-tracking systems; Analogous systems
G01S 13/44 - Monopulse radar, i.e. simultaneous lobing
5.
Designing an antenna array to meet specified performance criteria
An antenna array can be quickly and efficiently designed to meet specified performance criteria. A system can be configured to receive various performance criteria as inputs, and from these inputs, identify how elements of an antenna array should be arranged so that the antenna array will meet the performance criteria. An iterative process can be performed to identify at least one arrangement of elements that will best meet the performance criteria while also complying with specified structural constraints.
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
G01S 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
Embodiments are directed to representing radio frequency (RF) signals in a visualization using particle bursts. In one scenario, a computer system instantiates RF signal sources in a virtualization, where each RF signal source is configured to emit RF signals. The computer system then generates a stream of particle bursts to represent at least one of the emitted RF signals, and provides a visualization that shows the instantiated RF signal sources along with the generated particle bursts representing the emitted RF signals. In some cases, the visualization may be used to illustrate an anti-access, aerial denial (A2AD) environment. In other cases, the visualization may be used to illustrate network communications using particles, where each particle represents network data packets.
A fault-tolerant LCD display system comprises an LCD panel and a first driver coupled to the LCD panel and including a first gate driver and a first source driver, the first driver including a first transient voltage suppressor. A second driver is also coupled to the LCD panel and includes a second gate driver and a second source driver, the second driver including a second transient voltage suppressor. One of the first and second drivers is operable to be active while the other is inactive, and vice versa, and the first and second drivers are isolated from one another. The first and second transient voltage suppressors are operable to prevent a back biasing voltage from leaking back through the inactive driver and thus the transient voltage suppressors are operative to prevent a back biasing voltage from shunting through the non-active driver.
G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
G09G 3/3266 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for scan electrodes
G09G 3/3275 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for data electrodes
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
A fault-tolerant LCD display system comprises an LCD panel and a first driver coupled to the LCD panel and including a first gate driver and a first source driver, the first driver including a first transient voltage suppressor. A second driver is also coupled to the LCD panel and includes a second gate driver and a second source driver, the second driver including a second transient voltage suppressor. One of the first and second drivers is operable to be active while the other is inactive, and vice versa, and the first and second drivers are isolated from one another. The first and second transient voltage suppressors are operable to prevent a back biasing voltage from leaking back through the inactive driver and thus the transient voltage suppressors are operative to prevent a back biasing voltage from shunting through the non-active driver.
G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
G09G 3/3266 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for scan electrodes
G09G 3/3275 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] - Details of drivers for data electrodes
G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
A fault-tolerant LCD display system comprises an LCD panel and a first driver coupled to the LCD panel and including a first gate driver and a first source driver, the first driver including a first transient voltage suppressor. A second driver is also coupled to the LCD panel and includes a second gate driver and a second source driver, the second driver including a second transient voltage suppressor. One of the first and second drivers is operable to be active while the other is inactive, and vice versa, and the first and second drivers are isolated from one another. The first and second transient voltage suppressors are operable to prevent a back biasing voltage from leaking back through the inactive driver and thus the transient voltage suppressors are operative to prevent a back biasing voltage from shunting through the non-active driver.
G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
G09G 3/00 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
G02F 1/1368 - Active matrix addressed cells in which the switching element is a three-electrode device
The status of a device is continually monitored by a processor or programmable circuitry that has a powered on mode and a powered off mode. The device includes a short range wireless transceiver which allows the status data to be communicated via a wireless connection to an external wireless communication device, whether the processor or programmable circuitry is in the powered on mode or the powered off mode. The wireless communication device, in turn, transmits the status data to a maintenance/repair/monitoring facility via a communication network. This facilitates monitoring of the device in a non-intrusive manner and streamlines maintenance of the device. The wireless communication device also receives information from the external communication device, including information relevant to the operation of the device, and updates the status data based on the received information. This facilitates updates to the device, as needed.
H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
11.
ISOLATED DIGITAL VIDEO INTERFACE RECEIVER AND METHOD FOR ISOLATING RECEIVED DIGITAL VIDEO INTERFACE SIGNALS
Digital video signals are transmitted from a transmitter to a receiver (100B) via a digital video interface including shielded twisted pair cables (200A, 200B) that are surrounded by an over-braid shield (250). The over-braid shield is connected to a chassis ground (140) at a transmitting end and the receiving end. An interface conveys the received signals to receiver processing circuitry (150). The interface is connected to an isolated ground (125B), isolating the receiver processing circuitry. Cable shields of the twisted pairs are also connected to the isolated ground (125B), such that a return current is forced back through the twisted pair cable shields rather than the over-braid shield. This reduces electromagnetic emissions and confines transients primarily to the over-braid shield.
09 - Scientific and electric apparatus and instruments
Goods & Services
Military-based aerial communications systems, namely,
high-data rate, wideband, secure, real-time, portable
communication devices, namely, modems, receivers,
transceivers, and waveforms for use in air-to-ground secure
communication networks; multi-band transceivers for use in
secure aerial communication networks, namely, dual band
transceivers capable of transmitting and receiving analog
and digital data for use in secure intelligence,
surveillance, and reconnaissance networks; military
transceivers for use in single and multi-band aerial
communication networks.
09 - Scientific and electric apparatus and instruments
Goods & Services
Communications systems, namely, high-data rate, wideband,
secure, real-time portable communication devices for use in
military, intelligence, surveillance, reconnaissance, and
government applications; and communications systems, namely,
modems, receivers, transceivers, modems, and waveforms for
use in military, intelligence, surveillance, reconnaissance,
government, and commercial applications.
09 - Scientific and electric apparatus and instruments
Goods & Services
Communications systems, namely, high-data rate, wideband,
secure, real-time portable communication devices for use in
military, intelligence, surveillance, reconnaissance, and
government applications; and communications systems, namely,
modems, receivers, transceivers, modems, and waveforms for
use in military, intelligence, surveillance, reconnaissance,
government and commercial applications.
A target location device has a video camera, a range finder, a self location module and an inertial measurement unit. The device provides a video display including video output of the camera and an object marker such as a cross-hair overlayed on the video output for aiming the camera on a reference point or on a target in the video output. The range finder determines a distance from the device to the target. The self location module identifies the geographic location of the device. The inertial measurement unit includes at least one gyro for providing outputs corresponding to the location of the reference point and the target. Video stabilization may be use to allow accurate placement of the object marker on the target or reference point. Automatic range finder firing and gyroscope error compensation are also provided.
Detecting timing of a synchronization sequence included in a data stream transmitted in a noisy channel. The synchronization sequence is a known data sequence purposely injected into the data stream for synchronization. A data stream waveform, is obtained from a noisy communication channel. The data stream waveform includes an instance of a synchronization sequence waveform. One or more samples of the synchronization sequence waveform are obtained. One or more samples of a model synchronization sequence waveform are obtained. The model synchronization sequence waveform models an expected waveform for the synchronization sequence being transmitted on the communication channel by applying the synchronization sequence to a model of the communication channel. The instance of the synchronization sequence waveform is correlated with the model synchronization sequence waveform by correlating one or more samples of the synchronization sequence waveform with the one or more samples of the model synchronization sequence waveform.
H04L 7/04 - Speed or phase control by synchronisation signals
H04L 25/497 - Transmitting circuits; Receiving circuits using three or more amplitude levels by correlative coding, e.g. partial response coding or echo modulation coding
A portable communication station has a reflector dish that can be assembled and disassembled by a user. It has a hub with two spaced parallel plates extending from a hub body. A set of interchangeable dish segments together make up a concave reflective surface with the hub, and they each have a respective hub connector structure that snaps into place in the hub between the plates. Latches connect between the adjacent dish segments to secure them together. The latches each have a latching member that snaps over a latch element so that two engagement faces of the latch are compressed against each other, making the dish shape accurate and robust enough to withstand wind and other environmental factors. The dish can be disassembled by unlatching the latches and pulling the segments away from the hub.
H01Q 1/08 - Means for collapsing antennas or parts thereof
H01Q 9/46 - Resonant antennas with a plurality of elements having mutually inclined substantially straight portions with rigid elements diverging from single point
A target location device has a video camera, a range finder, a self location module and an inertial measurement unit. The device provides a video display including video output of the camera and an object marker such as a cross-hair overlayed on the video output for aiming the camera on a reference point or on a target in the video output. The range finder determines a distance from the device to the target. The self location module identifies the geographic location of the device. The inertial measurement unit includes at least one gyro for providing outputs corresponding to the location of the reference point and the target. Video stabilization may be use to allow accurate placement of the object marker on the target or reference point. Automatic range finder firing and gyroscope error compensation are also provided.
Flight data recorder receives from an aircraft a data stream specifying values for flight data parameters while an aircraft is in flight. The flight data recorder stores the values in a crash survivable non- volatile memory unit of the flight data recorder. The flight data recorder determines an occurrence during flight of an exception condition based on an evaluation of at least one exception parameter. Responsive to determining the occurrence of the exception condition, the flight data recorder wirelessly communicates selected aircraft data to a remote location external of the aircraft using a wireless transmitter under the exclusive control of the flight data recorder.
A satellite is configured for use in space so as to receive RF signals, convert them to a different frequency range, and re -transmit the converted RF signals. The satellite comprises a payload area supporting a motherboard structure with a plurality of frequency converters supported on it. The frequency converters are each connected with an antenna system of the satellite so that each of them receives a respective RF input signal. A local oscillator source supported on said motherboard structure generates a local oscillator signal, and a motherboard in the motherboard structure receives the local oscillator signal and transmits it through the motherboard to each of the frequency converters. The frequency converters each convert the respective RF input signal to a respective RF output signal using the local oscillator signal and transmit the RF output signal to the antenna system so as to be transmitted wirelessly.
A fusion night vision system has an optical element coupled to a display for improving the performance and viewability of images through a fusion night vision device while reducing overall system cost. The display producing a scene image from an image detector. The optical element has a flat input surface and a curved output surface. The curved output surface shaped to match an output surface of an image intensifier tube. The output from the display and the image intensifier being combined in an image combiner before entering an eyepiece for presentation to an operator as a fused image.
A system and method for training a student employ a simulation station that displays output to the student and receives input. The computer system has a rules engine operating on it and computer accessible data storage storing (i) learning object data including learning objects configured to provide interaction with the student at the simulation system and (ii) rule data defining a plurality of rules accessed by the rules engine. The rules data includes, for each rule, respective (a) if-portion data defining a condition of data and (b) then-portion data defining an action to be performed at the simulation station. The rules engine causes the computer system to perform the action when the condition of data is present in the data storage. For at least some of the rules, the action comprises output of one of the learning objects so as to interact with the student. The system may be networked with middleware and adapters that map data received over the network to rules engine memory.
Night vision devices utilize image intensifier tubes to see in low light conditions. A man-portable tester allows an operator to check for defects and determine the image resolution of the image intensifier tube quickly and easily without a power source or a darkened room.
A method and system for identifying a data recorder based upon a unique signature generated for the data recorder. Configuration information is received, the information specifying a plurality of data recording input parameters which are selected to facilitate use of the data recorder in a particular data recording application. A unique signature is generated according for the data recorder, the unique signature including a code which uniquely identifies the data recorder based on a transformation of the configuration information. The unique signature is stored for subsequent access or reference. To differentiate between similar makes and models of data recorders, at least a portion of the unique signature includes a unique core part number that is assigned to only one data recorder by, for example, the manufacturer of the data recorder.
An aspect of the disclosure relates to an OLED display (30) compatible for operation in both a day mode and a night mode and methods of operating such a display (30). In one embodiment, a display 30 comprises a screen (120), a plurality of sub-pixels including red (122), green (124), blue (126) and night-vision (128) pixels. The display (30) also comprises an arrangement scheme for the sub-pixels.
G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
An aspect of the disclosure relates to an OLED display (30) compatible for operation in both a day mode and a night mode and methods of operating such a display (30). In one embodiment, a display 30 comprises a screen (120), a plurality of sub-pixels including red (122), green (124), blue (126) and night-vision (128) pixels. The display (30) also comprises an arrangement scheme for the sub-pixels.
G09G 3/32 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
A thin film circuit, particularly desirable for satellite communications, mixes RF and an LO giga-hertz-range input signals to yield an IF signal by splitting the LO and RF signals into two, with a 180 degree phase shift introduced into one of the resulting signals. The LO and RF signals are then each mixed in parallel mixers. The outputs of the mixers have the IF signal with spurious (spur) signals in frequencies that are multiples of the frequencies of the RF or LO signals. The outputs are mixed together so that some of the spur signals cancel each other out and the IF signals are added in phase.
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 3/42 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture varying the phase by electrical means using frequency-mixing
H03D 7/10 - Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes
An integrated dual-mode display system that comprises both a heads down display (HDD) and a heads up display (HUD) combined in a single unit that includes a frame and a video processor configured to drive both the HDD and the HUD. The video processor is configured to operate in a first mode in which a same video is displayed on both the HDD and the HUD. The video processor is further configured to operate in a second mode in which a first video is displayed on the HDD and a second video, different from the first video, is displayed on the HUD. Space inside vehicles, such as airplanes, is limited, and HUD and HDD systems compete for this limited space. There is a need for a compact visual display system that can display both HUD and HDD infomiation.
29.
TOUCH SENSOR CONTROLLER RESPONSIVE TO ENVIRONMENTAL OPERATING CONDITIONS
A touch sensor controller system for use in a vehicle of the type utilizing a software application to be interfaced with by an operator of the vehicle includes a touch sensor and a touch detector associated with the touch sensor. A touch gesture processor is provided which prevents unwanted or unintended touch gestures from being communicated to the application software during certain operating conditions of the vehicle. The touch gesture processor receives inputs of the operating conditions of the vehicle and receives touch gesture information from the touch detector, and the touch gesture processor is operative to determine the types of touch gestures to be permitted to be passed to the software application.
G06F 3/04883 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
30.
COMBINED HUD/HDD DISPLAY WITH AMOLED MOUNTED ON A SINGLE FRAME
An integrated dual-mode visual display system which includes both a large-area heads down display and a heads up display combined in a single unit includes a housing or chassis, a flat panel display attached to the housing or chassis, a HUD projector for projecting HUD images and/or data, and a processor housed within the housing or attached to the chassis for driving both the HUD projector and the flat panel display. The processor comprises a video generator for generating video images to be displayed on the flat panel display and on the HUD. The HUD and the HDD (the flat panel display) can display the same information, completely distinct information, or information that has some commonality (some information is uniquely displayed on one or the other of the HUD and HDD displays, while some information is displayed on both the HUD and the HDD).
A touch sensor controller system for use in a vehicle of the type utilizing a software application to be interfaced with by an operator of the vehicle includes a touch sensor and a touch detector associated with the touch sensor. A touch gesture processor is provided which prevents unwanted or unintended touch gestures from being communicated to the application software during certain operating conditions of the vehicle. The touch gesture processor receives inputs of the operating conditions of the vehicle and receives touch gesture information from the touch detector, and the touch gesture processor is operative to determine the types of touch gestures to be permitted to be passed to the software application.
G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
B60R 16/02 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
B60K 35/00 - Arrangement or adaptations of instruments
32.
TRANSFORMERLESS SWITCHED MODE NIGHT VISION DEVICE POWER SUPPLY
A switching power supply (102) for a night vision device (100) converts a battery (113) voltage to high DC voltages for powering photocathode (103), screen (105), and micro-channel plate MCP (104) of the night vision device (100). The switching power supply (102) generates and adjusts a photocathode voltage instruction signal having a duty cycle based on the difference between a reference photocathode voltage and the photocathode voltage circuit output voltage. The switching power supply (102) generates and adjusts a screen voltage instruction signal having a duty cycle based on the difference between a reference screen voltage and the screen voltage circuit output voltage. The switching power supply (102) performs automatic brightness control and auto-gating without directly sensing the output load current.
H02M 7/10 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
G02B 23/12 - Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
A display system includes a backing, a touch-screen, and a front-mounted flexible display. The backing provides a rigid substrate or base upon which the other components are mounted. The touch-screen includes a conductive rear panel and a conductive front panel separated from the rear panel by an insulating air gap. The front conductive panel is flexible enough and positioned close enough to the rear panel that touching the front panel causes enough deflection of the front panel to cause it to bridge the air gap locally and to contact the rear panel. Thus, in this way the electrical path (and therefore the resistance of the circuit) can be mapped to the particular location on the touch-screen touched by the user.
G06F 3/045 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
34.
METHOD AND APPARATUS FOR CONVERSION OF GPS HEADING DATA FOR USE BY ELECTRONIC FLIGHT DIRECTOR
An improved Horizontal Situation Indicator (HSI) module for use with an aircraft, wherein the HSI module is adapted for accepting Bank Angle Commands or waypoint data from the GPS flight module and for using the same to determine a heading error. The HSI module is further adapted for outputting the heading error to the Flight Director module where it can be used to create a Roll Command for output to the Auto- Pilot, whereby the Auto-Pilot can be commanded to follow a turn using the HSI and the Flight Director without requiring an additional module be added to the aircraft to create the heading error for use by the Flight Director. The waypoint data can be of the "flyover" type or the "flyby" type.
An NVIS-compatible backlight assembly for an LCD display comprising a short-wavelength (blue) light source positioned in a first layer and a photoluminescent layer positioned adjacent the first layer for transforming blue monochrome emission from the blue light source into tri-color light for use as a full-color light source, while minimizing radiance in NVIS-sensitive regions.
G02B 23/12 - Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
A novel magnetron achieves increased power output at high frequencies by replacing a typical resonant cavity with a slow-wave waveguide structure. Waveguides built into the anode body sustain oscillations having phase change coefficients of 2*pi*n radians per section, where n is a positive integer. The magnetron is capable of supporting RF oscillations at frequency harmonics of the fundamental frequency, permitting it to operate at frequencies double or quadruple that of a similarly sized conventional magnetron.
H01J 25/56 - Magnetrons, i.e. tubes with a magnet system producing an H-field crossing the E-field with an electron space having a shape that does not prevent any electron from moving completely around the cathode or guide electrode having only one cavity or other resonator, e.g. neutrode tubes with interdigital arrangement of anodes, e.g. turbator tube
37.
METHODS AND APPARATUS FOR MANAGING NETWORK TRAFFIC
Methods, apparatus, and computer readable storage media reduce or eliminate network traffic meeting criteria. In some aspects, network traffic transmitted by one or more source nodes to one or more destination nodes may comprise a denial of service attack against the destination node(s). At least a portion of the denial of service attack traffic may be reduced or eliminated with the disclosed methods and apparatus. In one aspect, a method of managing undesirable network traffic transmitted from a source node to a destination node over a communications network includes receiving a notification of a routing rule change, authenticating the notification, determining a network routing rule based on the notification, applying the network routing rule, determining a network path toward the source node, determining an entity based on the network path, and transmitting a notification of the routing rule change to the entity.
A system and method for training a student employ a simulation station that displays output to the student and receives input. The computer system has a rules engine operating on it and computer accessible data storage storing (i) learning object data including learning objects configured to provide interaction with the student at the simulation system and (ii) rule data defining a plurality of rules accessed by the rules engine. The rules data includes, for each rule, respective (a) if-portion data defining a condition of data and (b) then-portion data defining an action to be performed at the simulation station. The rules engine causes the computer system to perform the action when the condition of data is present in the data storage. For at least some of the rules, the action comprises output of one of the learning objects so as to interact with the student.
A vehicle, especially a maritime vessel, is provided with an autogyro drawn by a tether. The tether contains mechanical strengthening components that enable it to securely retain the autogyro to the vehicle. The tether also contains two electrical conductors carrying different phases of AC power to the autogyro, and four optical fibers carrying optical data signals to and from the autogyro electronic payloads and avionics control circuitry. Signal converters at ends of the tether convert a wide range of electrical or wireless signals to optical data signals for transmission along the tether, and then back into the original electrical signal format for use by the autogyro or vehicle electronics.
Data recording systems (100) and methods (400) for synchronizing data of a plurality of different data types on a single packet (300). The methods involve: receiving the data and an audio frame containing voice data and timing data communicated over a plurality of channels; generating, in response to the reception of the audio frame, a combined packet on which the audio frame and at least a portion of the data are time synchronized to each other; and substantially simultaneously storing the combined packet in a primary data store and a secondary data store of a data recorder for subsequent use in reconstructing events leading up to a crash of a land vehicle, aircraft or vessel. The portion of data may include data link data, flight data and/or image/video data. The channels may include a cockpit channel and a plurality of pilot channels.
A center region of conductive material/s may be disposed or "sandwiched" between transition regions of relatively lower conductivity materials to provide substantially low defect density interfaces for the sandwiched material. The center region and surrounding transition regions may in turn be disposed or sandwiched between dielectric insulative material to form a sandwiched and transitioned device structure. The center region of such a sandwiched structure may be implemented, for example, as a device layer such as conductive microbolometer layer for a microbolometer detector structure.
H01L 27/14 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy
H01L 21/20 - Deposition of semiconductor materials on a substrate, e.g. epitaxial growth
42.
SYSTEMS AND METHODS FOR SYNCHRONIZING VARIOUS TYPES OF DATA ON A SINGLE PACKET
Data recording systems (100) and methods (400) for synchronizing data of a plurality of different data types on a single packet (300). The methods involve: receiving the data and an audio frame containing voice data and timing data communicated over a plurality of channels; generating, in response to the reception of the audio frame, a combined packet on which the audio frame and at least a portion of the data are time synchronized to each other; and substantially simultaneously storing the combined packet in a primary data store and a secondary data store of a data recorder for subsequent use in reconstructing events leading up to a crash of a land vehicle, aircraft or vessel. The portion of data may include data link data, flight data and/or image/video data. The channels may include a cockpit channel and a plurality of pilot channels.
A device includes a sensing element configured to produce a representation of an object in a space near the sensing element, an electronic storage comprising multiple representations, each representation being associated with a particular object, a communications interface, and a processor operable to receive the representation of the object in the space from the sensing element, compare the representation of the object in the space to the multiple representations stored in the electronic storage, determine that the representation of the object in the space is different from all of the multiple representations based on the comparison, identify the representation as a new representation based on the determination, and cause the new representation to be available to a data site through the communications interface. The device also may obtain a new representation from the data site.
A graphic processor device is implemented on a field programmable gate array ("FPGA") circuitry comprises a pipeline formatter that sets graphic commands and vertex data into structures, and a rasterizer that interpolates between vertices in the vertex data to generate lines and filling between at least one edge to generate a structure, wherein output of the rasterizer is a stream of fragments that become pixels. The graphic processor device further includes a frame buffer that receives a stream of fragments and blends a plurality of fragments before the plurality of fragments are stored in a frame buffer, and an output processor configured to retrieve a plurality of fragments from the frame buffer and transmits a plurality of pixels according to a predefined resolution.
A rasterizer in a graphic processor device implemented on a field programmable gate array circuitry (FPGA). The rasterizer comprises a preprocessor that creates data packets to generate at least one line, a main module that generates a stream of data fragments that become pixels, and a postprocessor that combines the data fragments and pipeline commands into one output to a fragment processor.
A host computer supports a virtual guest system running thereon. The host system has a firewall that prevents it from communicating directly with the Internet, except with predetermined trusted sites. The virtual guest runs on a hypervisor, and the virtual guest comprises primarily a browser program that is allowed to contact the Internet freely via an Internet access connection that is completely separate from the host computer connection, such as a dedicated network termination point with its specific Internet IP address, or by tunneling through the host machine architecture to reach the Internet without exposing the host system. The virtual guest system is separated and completely isolated by an internal firewall from the host, and the guest cannot access any of the resources of the host computer, except that the guest can initiate cut, copy and paste operations that reach the host, and the guest can also request print of documents. The host can transfer files to and from a virtual data storage area accessible by the guest by manual operator action. No other transfer of data except these user initiated actions is permitted.
Optically transitioning pixel-level filtering using a multi-level structure that includes an isolated optically transitioning filter element that is suspended over a corresponding radiation detector element in a one-to-one relationship to provide, for example, one or more features such as spectral detection and/or selective radiation immunity.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
Microbolometer pixel structures including membrane material in a current path between at least two spaced electrodes, the membrane material having multiple openings defined in the current path that are configured such that substantially the entire volume of electrically conductive membrane material in at least a portion of the current path contributes to conduction of current between the electrical contacts.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
G01J 5/24 - Use of specially adapted circuits, e.g. bridge circuits
49.
PIXEL-LEVEL OPTICAL ELEMENTS FOR UNCOOLED INFRARED DETECTOR DEVICES
Pixel-level monolithic optical element configurations for uncooled infrared detectors and focal plane arrays in which a monolithically integrated or fabricated optical element may be suspended over a microbolometer pixel membrane structure of an uncooled infrared detector element A monolithic optical element may be, for example, a polarizing or spectral filter element, an optically active filter element, or a microlens element that is structurally attached by an insulating interconnect to the existing metal interconnects such that the installation of the optical element substantially does not impact the thermal mass or thermal time constant of the microbolometer pixel structure, and such that it requires little if any additional device real estate area beyond the area originally consumed by the microbolometer pixel structure interconnects.
G01J 5/20 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
A thermal absorption structure of a radiation thermal detector element may include an optically transitioning material configured such that optical conductivity of the thermal absorption structure is temperature sensitive and such that the detector element absorbs radiation less efficiently as its temperature increases, thus reducing its ultimate maximum temperature.
A stepped-frequency radar signal is transmitted through a barrier. A transmitter of the stepped-frequency radar is on a first side of the barrier, a first object is on a second side of the barrier, and a second object that is distinct from the first object is on the second side of the barrier. A signal including a reflection of the transmitted signal from the first object and a reflection of the transmitted signal from the second object is sensed. The sensed signal is analyzed to determine that a first detection is associated with the first object and a second detection is associated with a second object.
A device includes a compressible conductive element including a first end and a second end, and an adjustment element coupled to the compressible conductive element, the adjustment element configured to adjust the compressible conductive element to a state of compression between an uncompressed mode and a compressed mode. The compressible conductive element is configured to couple to a source of electrical current at the first end and to radiate electromagnetic energy from the second end.
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
A personal radiation monitor worn by a person who may be exposed to potentially harmful radiation includes a main unit and a radiation sensor cartridge which is matable with and removable from the main unit of the monitor. The removable sensor cartridge includes one or more radiation sensor elements for detecting radiation, and further includes an electronic memory having stored therein calibration and identification information relating to the type of radiation and/or frequency bands of radiation which the sensor or sensors are designed to detect. The sensor cartridge is easily removable from the main unit of the monitor so that one sensor cartridge is interchangeable by the end user with another sensor cartridge.
A training set including a target object set and a clutter object set is accessed. It is determined that the training set includes multiple types of targets or multiple types of clutter. The target feature value of a type of target is compared with the clutter feature value. The type of target is associated with the non-target object based on the comparison. A classifier is trained using the target feature value and the clutter feature value of the associated type of target and the non-clutter object. A feature value associated with an unknown object is applied to multiple classifiers to generate a set of metrics for the unknown object. The metrics are aggregated into an overall metric. Whether the unknown object is included in the target set is determined based on the overall metric.
G01V 3/10 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
An overmoded distributed interaction network is provided that generates high peak and average RF power amplification at high frequencies. A series of overmoded cavities are bounded by parallel or concentric grids that may be separated by metallic spacers adapted to function as a photonic bandgap circuit to suppress competing electromagnetic modes. The selected electromagnetic modes have wavelengths much shorter than the lateral dimension of the grids, allowing the beam-wave interaction to be distributed transversely for improved interaction efficiency. The grids may optionally be slotted and arranged to provide a serpentine traveling wave tube configuration.
An active electronically steered cathode (AESC) applies one or more electromagnetic modes to an input cavity, similar to that used in an inductive output tube. The structure and superposition of these modes creates local electric field maxima, causing the electron emission site or sites to move or be distributed across the surface of the cathode. Changing the amplitude, phase, or frequency of the modes provides time-variable control of the electric field profile, thereby generating electronically steered electron beams. One embodiment employs a pair of orthogonal TM modes driven out of phase, causing the electric field maximum to rotate around an annular cathode, producing a helical beam. Slots in the control grid may be used to segment the helical beam into discrete bunches to provide additional density modulation.
An apparatus and method of modulating an electron beam to induce a high degree of spatial bunching uses multiple control grids located in close proximity to an electron-emitting cathode. An RF field couples to the electron beam in the cathode-grid gap to induce velocity modulation. The electron beam then propagates through a first control grid, allowing the velocity modulation to induce spatial bunching. The electron beam then traverses a gap between the first grid and a second control grid and interacts with the RF field to induce further bunching of the beam. Simulations show that bunching factors of 50:1 may be achieved.
A system and method of magnetically insulating the cathode of a cold-cathode electron gun is achieved. A strong magnetic field is applied in the vicinity of the cold cathode to deflect and constrain the flow of electrons emitted from structures within the electron gun. The magnetic field largely prevents re-reflected primary and secondary electrons from reaching the cathode, thereby improving the operation and increasing the life of the cold-cathode electron gun. In addition, the insulating magnetic field improves electron beam focusing and enables a reduction in the magnitude of static electric focusing fields employed in the vicinity of the cold cathode, further reducing the electron gun's susceptibility to destructive arcing.
A sensor head includes a ground penetrating radar (GPR) system and a continuous-wave metal detector (CWMD). The GPR system includes a transceiver configured to transmit radiation toward an object and to receive radiation from the object. The CWMD includes a transmission antenna configured to produce a first magnetic field in the vicinity of the object sufficient to generate a current in the object, and a receive antenna configured to sense a second magnetic field produced by the current generated in the object.
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
60.
FIELD OBSERVABLE LIGHTING FOR AIRPORT SURFACE VEHICLES
A warning light system for an airport vehicle has a warning light carried on a movable vehicle and a power controller linking the warning light to an electrical power source, selectively causing the electrical power to flow to the warning light such that the warning light illuminates and to interrupt flow of the electrical power to the warning light such that said warning light is not illuminated. Control circuitry connected with the power controller determines whether or not a geographical position of the vehicle indicated by a GPS receiver on it is within a predefined geographical area. Responsive to a determination that the vehicle is within the predefined geographical area, the control circuitry causes the power controller to illuminate the warning light. Responsive to a determination that the vehicle is not within the predefined geographical area, the control circuitry causes the power controller to interrupt flow of the electrical power to the warning light such that the warning light is off. The warning light as a result illuminates without any action by a user when the vehicle enters the predefined geographical area and is extinguished when the vehicle leaves the predetermined geographical area.
A first device and a second device can include at least one alignment feature and at least one corresponding constraint. The alignment feature and the constraint can be configured to align the first device and the second device when the alignment feature is inserted into the constraint. The alignment feature and the constraint can be further configured to direct relative movement between the first device and the second device due to relative thermal expansion or contraction between the first device and the second device. The directed relative movement can keep the first device and the second device aligned over a predetermined temperature range.
The invention relates to a composition for decontaminating a toxin present in a polar or non-polar matrix. The composition includes (a) at least one activator that generates reactive oxygen species when reacted with an oxygen radical donator, and (b) at least one oxygen radical donator to react with the activator to create reactive oxygen species. The composition may also include one or more oxidizing agents that include reactive oxygen species.
A01N 59/00 - Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
A01N 37/16 - Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing the group ; Thio-analogues thereof
A01N 25/02 - Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
A62D 3/38 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by combustion
A01P 1/00 - Disinfectants; Antimicrobial compounds or mixtures thereof
Screening an item for prohibited material may include multiple pressurization and rapid depressurization cycles. Screening an item for prohibiting material may include a pressurization chamber including one or more items to be screened for prohibited material and one or more filler objects.
A phase division multiple access (PDMA) system is provided. The PDMA system includes at least one receiver logic combiner adapted to generate a plurality of composite PN codes. Each of the plurality of composite PN codes are derived from a common composite PN code and are separated by a predetermined PN phase.
A flight recorder includes an enclosure having a notch formed on one side or corner of the enclo-sure. An electronic interface is disposed within the enclo-sure. The electronic interface is coupled for receiving flight data, video data, and audio data. A memory unit is disposed within the enclosure and electrically connected to the electronic interface for storing the data. The mem-ory unit contains a non-volatile memory device. A re-serve power supply is physically disposed within the notch of the enclosure. The reserve power supply con-tains a rechargeable battery. A clamp secures the reserve power supply to the enclosure to make the reserve power supply removable from the enclosure. The reserve power supply has an electrical connector coupled to the enclo-sure for providing an operating voltage to the electronic interface and memory unit. The reserve power supply and electrical connector physically reside within a form factor of the enclosure.
B64D 45/00 - Aircraft indicators or protectors not otherwise provided for
G01C 23/00 - Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
66.
FLIGHT RECORDER HAVING INTEGRAL RESERVE POWER SUPPLY WITHIN FORM FACTOR OF ENCLOSURE AND METHOD THEREFOR
A flight recorder includes an enclosure having a notch formed on one side or corner of the enclosure. An electronic interface is disposed within the enclosure. The electronic interface is coupled for receiving flight data, video data, and audio data. A memory unit is disposed within the enclosure and electrically connected to the electronic interface for storing the data. The memory unit contains a non-volatile memory device. A reserve power supply is physically disposed within the notch of the enclosure. The reserve power supply contains a rechargeable battery. A clamp secures the reserve power supply to the enclosure to make the reserve power supply removable from the enclosure. The reserve power supply has an electrical connector coupled to the enclosure for providing an operating voltage to the electronic interface and memory unit. The reserve power supply and electrical connector physically reside within a form factor of the enclosure.
B64D 45/00 - Aircraft indicators or protectors not otherwise provided for
G01C 23/00 - Combined instruments indicating more than one navigational value, e.g. for aircraft; Combined measuring devices for measuring two or more variables of movement, e.g. distance, speed or acceleration
A system and method for detecting entities based on movement can involve transmission circuitry configured to enable transmission of a stepped-frequency radar signal, an antenna, and receiving circuitry configured to generate data including information associated with frequency and phase shifts between the transmitted signal and the reflections of the transmitted signal. The system also can involve a processor configured to analyze the generated data to determine information associated with a moving object located at a side of a wall different than a side of the wall of which the system is located. The analyzing can involve compensating for the effect of motion of the system on the phase shifts between the transmitted signal and the reflections of the transmitted signal.
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
A system and method for enabling transmission of a stepped-frequency radar signal can involve a first antenna and a second antenna. The system can also involve receiving circuitry configured to receive detected reflections from the antennas and to generate data including information associated with frequency and phase shifts. The system can further involve a processor configured to receive the generated data from the receiving circuitry and to analyze the generated data to determine information associated with a moving object located at a side of a wall opposite to the system by differentiating reflections of the transmitted signal detected with the first antenna from reflections of the transmitted signal detected with the second antenna.
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
A flight recorder includes an information input device, heat sensitive memory device electrically connected to the information input device, and housing enclosing the heat sensitive memory device. The housing is made with a first material and having a plurality of openings made through the housing. A sacrificial material is disposed between the housing and heat sensitive memory device. The sacrificial material having a lower melting temperature than the first material such that the sacrificial material changes state and egresses through the openings in the housing when exposed to heat to create an air gap between the housing and heat sensitive memory device. The first material includes nickel and the sacrificial material includes aluminum. A heat insulating layer is disposed between the sacrificial material and heat sensitive memory device. A second sacrificial material is disposed between the heat insulating layer and heat sensitive memory device.
An accelerometer has an acceleration transducer producing uncorrected analog acceleration signals representing vertical, lateral, and longitudinal components of acceleration. An error correction system is connected to the acceleration transducer for receiving the uncorrected analog acceleration signals. The error correction system includes a system controller for generating a plurality of correction coefficients, an analog to digital converter which converts the uncorrected analog acceleration signals to uncorrected digital acceleration signals, a filter for filtering the uncorrected digital acceleration signals, an error compensation circuit receiving the correction coefficients to compensate the uncorrected digital acceleration signals, and a digital to analog converter which converts the corrected digital acceleration signals to corrected analog acceleration signals. The error compensation circuit corrects for bias offset, cross-axis alignment errors, scaling errors, and thermal offset. The system controller arranges a plurality of calibration measurements into a matrix and inverts the matrix to calculate the correction coefficients.
A cryptographic device may include a programmable hardware component, such as a Field Programmable Gate Array for example, and a processor. The programmable hardware component may encrypt and decrypt data. The programmable hardware component may be securely configured via cryptographically signed and encrypted configuration package. The configuration package may contain a hardware image and executable code. The processor may load the new hardware image onto the programmable hardware device and may execute the executable code to test an operation of the programmable hardware component and the new hardware image. The processor and the programmable hardware component may be physically and/or operationally independent of one another; thus, a security compromise associated with one may not affect the other. Once the programmable hardware component and the hardware image have been tested according to the executable code, the cryptographic device may be ready to encrypt and decrypt user data.
A position of an object moving through a region of interest is determined, and at least one source of an air stream is selectively activated based on the determined position The air stream is capable of dislodging a particle from the object moving through the region of interest The air stream is directed toward the region of interest An air collector is selectively activated, based on the determined position, to draw air from the region of interest The drawn air is deposited on a sample collector, and the sample collector is analyzed to determine whether the deposition of the air stream left particles of a material of interest on the sample collector.
A display system is provided to surround a user with an out-thβ window scene. The system includes a screen structure that is a facetted back-projection dome made up of a polygonal polar top facet surrounded by trapezoidal facets angulated downward from it in an upper facet row. A middle row of facets extends angulated downward therefrom, and a lower row of trapezoidal facets extends down from them. Each facet has video projected thereon by a high definition projector, and to maximize resolution and efficiently use the projector output, the vertical height of each facet makes use of the full vertical field of pixels available from the associated projector. The facets are all tangent to a sphere about a design eyepoint of the dome.
A method and system for managing Priority Messages in a hybrid TDMA-Spread Spectrum (TDMA-SS) communication system is provided. The method and system include a HUB for generating a HUB TDMA epoch, wherein the HUB TDMA epoch includes at least one Priority Message (PM) slot. The PM slot includes a plurality of assignable PM sub-slots. The method and system also include at least one SPOKE, wherein the at least one SPOKE is adapted to transmit a Priority Message during its assigned PM sub-slot within the HUB TDMA epoch.
A particle-harvesting material includes a flexible, reusable, and thermally conductive material including a rough surface having dimples of a size within a first range of sizes, a microstructure including interstices of a second range of sizes, the second range of sizes including sizes smaller than the first range of sizes, and an etched portion on the rough surface configured to attract particles upon contact between the particles and the etched portion.
A connector system (C) for forming an electrical connection between two electronic or electrical assemblies includes a conductive tubular female member (40) and a compatible flexible male member (44). The male member (44) preferably comprises a helical coil spring-like wire portion (50) about a central axial post (52) for establishing electrical contact with and removably mating with an interior surface (42) of the conductive tubule receptacle member (40) electrically connected with an electronic assembly (28).
H01R 13/635 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure for disengagement only by mechanical pressure, e.g. spring force
A Personal Computer Memory Card International Association (PCMCIA) card may establish, via a non-secure network, a secure communications channel between a computer and a secure network. The non-secure network may define a first address space. The secure network may define a second address space. The PCMCIA card may include a cryptography module, a network adapter, and/or a processor. The cryptography module may provide Type 1 cryptography of data communicated between the computer and the secure network. The network adapter may be in communication with the non-secure network and may be associated with a first network address from the first address space. The processor may be in communication with the secure network via the cryptography module and the network adapter. The processor may identify a second network address for the computer from the second address space and may communicate the second network address to the computer, for example via dynamic host control protocol (DHCP).
A device that includes a first processor, a second processor, and an encryption module in communication with the first processor and the second processor may be used to accept conditions for access to the network. The first processor may receive condition data, and in response, may send an acceptance signal via the encryption module to the second processor. The second processor may receive the acceptance signal and, in response, may send acceptance data to a gatekeeper. The encryption module may block unencrypted data other than the acceptance signal from being communicated from the first processor to the second processor. The encryption module may support type 1 encryption.
A resonant cavity with a bowtie shape supports an electromagnetic field used to deflect the trajectory of an electron beam passing through the cavity. The short transit time of the beam across the gap maintains the cavity fields at near-optimal phase, improving interaction efficiency even for relatively low-energy beams. High interaction impedance ensures good drive-power-to-deflection conversion efficiency. The uniform field achieved across the gap enforces uniform deflection across the beam profile to maintain beam quality. Multiple bowtie cavities can be arranged to allow arbitrary two-dimensional deflections.
An output circuit for a microwave tube is provided that has generally high interaction impedance for good efficiency, has high average power capability, and is physically large for a given operating frequency. The output circuit is designed to operate in conjunction with an off-axis, bunched electron beam. Electromagnetic fields are applied to the region in which the electron beam propagates to impart an azimuthal velocity to the bunched electron beam. The electron bunches then interact synchronously with a resonant output structure to excite radio-frequency modes from which energy can be extracted and applied to a load.
A Personal Computer Memory Card International Association (PCMCIA) card is disclosed. The PCMCIA card may include a cryptographic module, a communications interface, and a processor. The cryptographic module may perform Type 1 encryption of data received from a computer into which the card is inserted. The cryptographic module may support High Assurance Internet Protocol Encryption (HAIPE). The communications interface may provide connectivity to a network adapter. The communications interface may include a Universal Serial Bus (USB) interface. The processor may detect whether a network adapter is coupled to the communications interface, identify a device driver that corresponds to the network adapter, and employ the device driver to provide operative communication between the cryptographic module and the network adapter. The PCMCIA card may contain a datastore that maintains a plurality device drivers. For example, the plurality of device drivers support any one of IEEE 802.x, Ethernet, V.90, or RS-232 network protocols.
A timing correction system for fast PN acquisition is provided. The system includes a signal sampler for testing any incoming signal and a real-time clocker coupled to the signal sampler. A parallel correlator is coupled to the real-time clocker for searching for a PN sequence and a burst detector is coupled to the parallel correlator. A chip timing corrector is coupled to the burst detector and a processor is coupled to the chip timing corrector for determining signal timing.
A night viewer (10) is adaptable to generate an enhanced image suitable for viewing through an optical scope (16). An input end (18) of the viewer (10) receives the image to be enhanced through an objective lens (20). An image enhancing unit (22) enhances the image. The enhanced image is optically transmitted from a display (28) to the ocular lens (24) of the scope (16). The display (28) is operably connected with the image enhancing unit (22) to display the enhanced image. A Risley prism (30) located in an image path (32) is used to controllably adjust and to maintain boresight alignment (36).
G02B 23/12 - Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
84.
INTEGRATED SECURE AND NON-SECURE DISPLAY FOR A HANDHELD COMMUNICATIONS DEVICE
A handheld communications device is created with a touch sensitive display, a secure computing component, and a non-secure computing component. The secure component may comprise a secure CPU executing a secure operating system. The non-secure component may comprise a separate non-secure CPU executing a separate non-secure operating system. The touch sensitive display on the handheld communications device is divided into a secure portion and a non-secure portion such that information displayed in the secure portion is provided by the secure operating system, and information displayed in the non-secure portion is provided by the non-secure operating system. Similarly, data entered through the secure portion of the display is provided to the secure operating system, and data entered through the non-secure portion of the display is provided to the non-secure operating system.
A method for displaying an image according to one embodiment of the present invention includes projecting an image away from a first display surface and a second display surface onto a reflective surface, and orienting the reflective surface to selectively redirect the image onto either the first display surface or the second display surface.
A compact, reliable scanning electron-beam x-ray source achieves reduced complexity and cost. In particular, the x-ray source includes an electron beam that is propagated parallel to an x-ray target and is swept across the target in response to a moving magnetic cross field. Rather than scanning the beam by deflecting it about a single point, the point of deflection is translated along the target length, dramatically reducing the volume of the device. The magnetic cross field is translated along the target length using either mechanical systems to move permanent magnets, or electrical systems to energize an array of electromagnets.
Techniques for detecting contraband are described, as are techniques for generating an image of living tissue. A location of interest relative to a target space is received, and a radar signal is transmitted in the direction of the location of interest. Portions of the radar signal are detected with multiple receiving structures. The detected portions are processed to generate information corresponding to dielectric or loss properties, the properties corresponding to particular positions within the target space. A determination is made as to whether contraband is present in the target space based on the determined properties.
G01S 13/00 - Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
Energy released from energized particles is sensed. Whether the energized particles include a possible energetic material is determined based on the sensed energy. If a determination is made that the energized materials include a possible energetic material, a spectral signature of the sensed energy is determined. The spectral signature of the sensed energy is compared to one or more known spectral signatures associated with energetic materials. Whether the possible energetic material is an actual energetic material is determined based on the comparison.
An input circuit of a microwave amplification tube achieves improved instantaneous bandwidth. By directly coupling the transmission line carrying a modulating radio frequency signal to a control grid, a low-Q input circuit is created that increases the fractional bandwidth of the system. A resonant cavity may be used to generate a voltage across the gap between the cathode and the control grid. Alternative geometries are presented whereby the electron beam is emitted from a cathode connected either to the center conductor of the transmission line or to the outer conductor of the transmission line. Alternatively, the electric field of the radio-frequency signal propagating through the transmission line may be used to create a voltage across the gap between the cathode and the control grid without using a resonant cavity. Likewise, alternative geometries are presented by which the electron beam is emitted from a cathode connected either to the center conductor or to the outer conductor of the transmission line.
H01J 25/10 - Klystrons, i.e. tubes having two or more resonators, without reflection of the electron stream, and in which the stream is modulated mainly by velocity in the zone of the input resonator
93.
MOTION COMPENSATION SYSTEM FOR UNDERWATER SONAR SYSTEMS
An underwater buoyancy apparatus for compensating for wave induced vertical and/or horizontal motion, particularly in sonar devices deployed from nautical platform. The underwater buoyancy apparatus is slidably connected along a tether between a nautical platform and an underwater sonar device. The underwater buoyancy apparatus contains a volume of air and/or water which can be changed to thereby alter the underwater buoyancy apparatus's depth in a body of water, in response to vertical and/or horizontal motion the nautical platform.
A method of detecting energetic materials, such as explosives, includes energizing a sample area that contains particles of energetic materials. In the method, temperature characteristics from the sample area are monitored, and a temperature released from exothermic decomposition of the particles is detected. The method further includes analyzing the detected temperature to determine the presence of the exothermic compound which caused the decomposition.
An electron beam amplification device provides trajectory modulation of an electron beam, and includes an electron gun, a modulator, an interceptor, an output circuit, and a collector. The electron gun produces an electron beam. The modulator receives an RF input signal and provides a corresponding electromagnetic field region that alters trajectory of the electron beam in correspondence with the RF input signal. The interceptor has at least one aperture oriented such that the electron beam transmits through the aperture when the electron beam altered by the modulator follows a particular transmission path and impacts upon the interceptor when the electron beam trajectory altered by the modulator follows a path other than the particular transmission path. The output circuit is arranged so that the electron beam transmitted through the interceptor aperture passes therethrough and produces an RF output signal. The collector recovers remaining energy of the electron beam after passing through the output circuit. An optional post-accelerator may be located between the modulator and the output circuit for increasing energy of the electron beam exiting the interceptor aperture.
A method and system is disclosed for generating and detecting variable sequence PN codes. PN-Code sequence changes based on varying interceptor threat levels are generated at a rate fast enough to avoid exploitation while maintaining a reasonable correlation search window. The PN code sequence is phase shifted by N-chips based on the severity of the threat environment. A synchronized receiver demodulates the PN encoded signal by correlating over every possible phase of the PN code sequence. The receiver includes first and second correlators and threshold detectors adapted to detect PN signals with varying PN code sequence changes.
A low power self-organizing network is made up of a plurality of wireless communication nodes communicating wirelessly with each other. The nodes each have a sensor providing a respective sensor data value indicative of a physical parameter in the environment of that node. The wireless network discontinues communication with any nodes in which the sensor data value is outside a range of network sensor data values. The network is preferably a group of vehicles moving ' together, especially a train in which each node is associated with a respective wheel of a railroad car. The nodes are low-power devices that communicate using wireless communications according to a Zigbee protocol. The nodes each have an additional sensor sensing a physical parameter the respective wheel thereof and determines from said electrical signal a degree of degradation of a bearing of the wheel, and transmits data of the degree of degradation to the main node. The main node communicates with another computer system using a higher power communication system and transmits thereto data indicative of degradation of said bearings.
G06F 15/16 - Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
A distributed simulation system is composed of simulator stations linked over a network that each renders real-time video imagery for its user from scene data stored in its data storage. The simulation stations are each connected with a physics farm that manages the virtual objects in the shared virtual environment based on their physical attribute data using physics engines, including an engine at each simulation station. The physics engines of the physics farm are assigned virtual objects so as to reduce the effects of latency, to ensure fair fight requirements of the system, and, where the simulation is of a vehicle, to accurately model the ownship of the user at the station. A synchronizer system is also provided that allows for action of simulated entities relying on localized closed loop controls to cause the entities to meet specific goal points at specified system time points.
