Abstract: 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.

Abstract: Optical and RF energy may be provided simultaneously or otherwise across a rotary coupler using separate communication paths. The rotary coupler may be provided with an optical transmission line that passes inside or through the center of an inner conductor of a coaxial RF transmission line that itself extends across the rotational interface/s of the rotary coupler. Both the optical transmission line and the RF transmission line may be positioned at, or close to, the axis of rotation of the rotary coupler. The rotary coupler may be configured to transfer optical and RF energy across rotational interface/s of the rotary coupler using an optical rotary joint positioned inside the inner conductor of a RF channel transmission line that itself is substantially centered at, and in line with, the rotational axis of the rotary coupler.

Abstract: A display system is provided to surround a user with an out-the 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. The projector resolutions and the size, position and material of the facets are such that the imagery visible on the inside of the dome on the facets is at resolution corresponding to a visual acuity of 20/50 or higher, preferably 20/20, and at or near eye-limiting resolution.

Abstract: 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.

Abstract: A system and method are provided for distributed physics based simulation wherein a number of stations are connected via a network. When the simulation detects that a weapon, especially a missile or directed energy beam, is engaging a target vehicle, a single physics station is assigned the determination of the damage status of a target vehicle in the vicinity of the weapon. The detonation or strike of the weapon is applied to a model of the vehicle, wherein the vehicle is composed of pieces each made up of a number of parts, and damage is assessed. Where the damage to a piece of the vehicle exceeds a predetermined threshold, the piece is removed from the vehicle, and where a predetermined maximum damage is reached for the vehicle, the vehicle is destroyed in the simulation. The damage assessment from the weapon is made using raytracking component of a physics engine that is also used to control movement of virtual objects in the simulation according to rules of physics of the physics engine.

Abstract: Methods and systems are disclosed for testing and/or validating that an untrusted device is operating according to an expected state or configuration. The methods and systems may be designed such that the volatile memory of the untrusted device is brought to a known state for validation, for example upon ingress to or egress from a protected mode of operation. The device may execute a first operating system when operating outside of the protected mode. Upon determining to transition to protected mode, an operational image of a second operating system may be loaded into the device. The device may write a pattern to unused memory for validation. The device may receive a first challenge request from a trusted monitor (TM). In order to be successfully validated, the device may answer the challenge correctly within a given response window based on the current state of its volatile memory.

Abstract: 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.

Abstract: 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.

Abstract: Methods, apparatus, and computer readable storage medium for authenticating assertions of a source are disclosed. In one aspect, a method for authenticating an assertion of a source in an environment of distributed control include receiving a notification of the assertion; determining an entity responsible for maintaining an authenticated list of assertions by the source based on a first trusted public record, determining an assertion authenticator for the entity based on a second trusted public record, determining one or more assertions of the source from the assertion authenticator, and authenticating the assertion based on the determined one or more assertions.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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 (o) 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.

Abstract: Methods and systems are disclosed for testing and/or validating that an untrusted device is operating according to an expected state or configuration. The methods and systems may be designed such that the volatile memory of the untrusted device is brought to a known state for validation, for example upon ingress to or egress from a protected mode of operation. The device may execute a first operating system when operating outside of the protected mode. Upon determining to transition to protected mode, an operational image of a second operating system may be loaded into the device. The device may write a pattern to unused memory for validation. The device may receive a first challenge request from a trusted monitor (TM). In order to be successfully validated, the device may answer the challenge correctly within a given response window based on the current state of its volatile memory.

Abstract: Methods and systems for increasing the security or trust associated with an untrusted device are provided. For example, a trusted hardware component may send a request to the untrusted device. The request may indicate one or more challenges to be performed by a secure application executing on the untrusted device. The trusted hardware component may determine an expected response to the one or more challenges. The expected response may be determined at the secure hardware component based on an expected configuration of the untrusted device. The trusted hardware component may receive a response to the request from the untrusted device. The trusted hardware component may determine a security status of the untrusted device based on the expected response and the received response.

Abstract: An interference channel equalizer for receiving and processing at least two distinct RF data signals transmitted over the same frequency to a single receiving station that has at least one receiver for each distinct transmitted RF data signal. Each receiver processes an RF data signal received by its antenna and outputs an output data signal which corresponds to one of the distinct transmitted RF data signals. Each receiver includes an antenna configured to receive an RF data signal, a demodulator, a delay block to selectively delay the received RF data signal, an interference cancellation feed forward filter that uses the received signal from another receiver to remove co-channel due to another distinct RF transmitted data signal from the signal being processed, and a decision feedback equalizer to mitigate both intersymbol and multi-path interference from the received signal being processed.

Abstract: A distributed, networked simulation system has two or more vehicle simulators that resists latency errors when the vehicles are close to each other, and is especially useful for close maneuvering training such as tanker and receiver aircraft refueling exercises or combat exercises where one aircraft closely follows another. One simulator sends the other simulator data defining the relative linear displacements and rotations between their two vehicles. The receiving simulator uses the data to maintain the relative position of the other vehicle in its local scene data based on the defined relative displacement and rotation between the vehicles. An additional simulator may simulate the boom control on the tanker using similar relative position data. The system starts relative displacement data operation when one vehicle approaches another in the virtual world, and returns to normal operation when the vehicles separate.

Abstract: Methods and systems are described to allow for the parallel processing of packets and other subsets of data that are to be delivered in order after the completion of the parallel processing. The methods and systems may process packets and subsets of data that may vary in size by orders of magnitude. The packets may be transmitted and/or received over data transmission networks that may be orders of magnitude faster than the processing speeds of the parallel processors. Entire packets or subsets of data may be allocated to individual processing units without segmenting the packets between the processing units. A count value may be inserted as metadata to received packets in order to indicate a relative order of arrival. The metadata may be utilized by a multiplexor at the output of the parallel processing units in order to maintain in-sequence delivery of the processed packets.