Abstract: A present novel and non-trivial system, apparatus, and method for employing a catadioptric optical system in a Head-Up Display (“HUD”) system are disclosed. A catadioptric optical module is configured to produce a large image size within a small space envelope by folding the optical path back through module and separating the paths by use of a beam splitter. Such module comprised of a beam splitter, collimating mirror, and correcting lens produces collimated beams of light from an image source providing either polarized or non-polarized beams of light. If polarized beams are provided, the module includes a quarter-wave retarder, and the configuration of the module permits the image source to provide either s-polarized or p-polarized beams. A combiner arm assembly comprising of at least one combiner receives the collimated beams, where the employment of a plurality of combiners extends the relatively small instantaneous field of view.

Abstract: A phosphor screen for image forming including phosphor material being excitable by light in a wavelength ?1. The phosphor screen receives an optical image from an image forming optical system and produces the optical image at a second wavelength ?2. The phosphor screen includes a phosphor layer comprising the phosphor material. A short-pass reflective coating is positioned on a first side of the phosphor layer. The short-pass reflective coating transmits the wavelength ?1 and reflects the wavelength ?2. A long-pass reflective coating is positioned on a second side of the phosphor layer. The long-pass reflective coating transmits the wavelength ?2 and reflects the wavelength ?1. A first substrate is positioned over the short-pass reflective coating. The first substrate is formed of optically clear and thermal conductive material. A second substrate is positioned over the long-pass reflective coating.

Abstract: A system capable of operation with dynamic sockets includes a plurality of communications devices. Each of the plurality of communications devices includes high band channel radio resources capable of communications at 900-2800 MHz and socket radio resources capable of communications at 30-1000 MHz. The high band channel radio resources and the socket radio resources are significantly separated in frequency so that the high band channel radio resources and the socket radio resources are suitable for concurrent operation with no interference and minimal isolation, co-site problems to solve in each of the plurality of communications devices. The plurality of communications devices are connected to a unifying mesh network by the high band channel radio resources. The unifying mesh network is suitable for allowing the plurality of communications devices to communicate with one another.

Abstract: A method for receiving data packets in a communication network comprising scanning a channel for a preamble during an acquisition search window, detecting the preamble during the acquisition search window, assigning a reception acquisition search window for receipt of a data packet including a data preamble and a data portion, coordinating the transmission of the data packet with the reception acquisition search window, detecting the data preamble during the reception acquisition search window, and initiating receipt of the data portion upon detection of the data preamble.

Abstract: A weather radar system can be utilized on-board an aircraft. The weather radar system includes processing electronics for sensing weather. The processing electronics is configured to utilize sensed weather data to generate a vertical weather prediction for a given altitude in response to a range and an azimuth. The system can also include a display. The display provides visual indicia of the vertical weather prediction in response to the processing electronics.

Abstract: A motion planner for unmanned ground vehicles capable of traversing at high speeds to reach remote locations in partially known environments. The motion planner comprises a global path planner and a local path planner in communication with the global path planner. The global path planner determines a path to reach a goal location. The local motion planner revises the path determined by the global path planner to generate a motion profile accounting for constraints on the maneuverability of the unmanned ground vehicle. The motion profile provides a revised path for being traversed by the unmanned ground vehicle to reach the goal location.

Abstract: An airborne cell phone system comprises a cabin-based system for communicating with a ground station over a satellite link. A base station transceiver is in the ground station and an air interface (Um) is extended to a cabin-based mobile as if the cabin-based mobile is ground-based. The cabin-based system includes the cabin-based mobile for communicating over the Um interface. A custom device emulates the Um interface and communicates with the cabin-based mobile. A cabin transceiver connected to the custom device communicates with the custom device and the satellite link. The ground station further comprises a ground transceiver for communicating with the satellite link. A handset emulator connected the ground transceiver emulates a handset and communicates with the ground transceiver. A ground Um interface communicates with the handset emulator and the base station transceiver communicates with the ground Um interface.

Abstract: The present invention is a system and method for providing trapezoidal pixel segments with peripheral interconnections to rows and columns of pixel segments for electrical flat panel display devices. Interconnections made to pixel segments are located substantially in the non-emitting space between pixels. Pixel segment area may be configured to correspond to a desired luminous intensity for individual pixels. Luminous intensity may be determined from user, machine or process identified criteria.

Abstract: The present invention is directed to a system for providing a trusted environment for untrusted computing systems. The system may include a HAC subsystem managing shared resources and a trusted bus switch for controlling a COTS processor to access the shared resources. The shared resources such as memory and several I/O resources reside on the trusted side of the trusted bus switch. Alternatively, the system may include a SCM as an add-on module to an untrusted host environment. Only authenticated applications including COTS OS execute on the SCM while untrusted applications execute on the untrusted host environment. The SCM may control secure resource access from the untrusted host through a plug-in module interface. All secure resources may be maintained on the trusted side of the plug-in module interface.

Abstract: An avionics display is disclosed. A synthetic rendering of terrain is created using stored terrain data. A horizon line is overlaid upon the synthetic rendering of terrain. The horizon line represents zero degrees pitch attitude in a direction of travel of an aircraft in which the avionics display is installed. The horizon line is configured to move in response to attitude-changing movement of the aircraft. An attitude cue is overlaid upon the synthetic rendering of terrain and depicted on first and second sides of the horizon line such that the synthetic rendering of terrain remains substantially visible. The attitude cue has a first appearance on the first side of the horizon line and a second appearance on the second side of the horizon line. The first appearance is visually contrasted from the second appearance.

Abstract: A software defined radio system is described. The software defined radio comprises a modem bank at least partially defined by software running on a processor. The SDR also comprises an antenna group translator coupled to the modem bank. Further, the SDR comprises at least one antenna coupled to the antenna group translator. The antenna group translator comprises an antenna switch comprising RF filtering functions and RF front ends comprising frequency conversion functions. To greatly reduce the complexity and cost of the system, the architecture includes an antenna group translator having RF front end hardware that is specific to the frequency band of each antenna. In addition, the modem bank includes banded frequency converters.

Abstract: An airspace awareness and warning system (“AAWS”) provides input to an airspace alert (“AA”) processor from at least one real-time aircraft system or sensor, a navigation system, and an airspace database containing three-dimensional delineations of defined airspace; the processor determines an airspace clearance surface and an aircraft airspace alert surface, and if one surface penetrates the other, the processor generates an alert signal and provides an alert signal to a crew alerting system. The two surfaces are determined by the processor by executing an algorithm(s) embedded in software containing the disclosed embodiments and methods. At least one criterion used to define an aircraft airspace alert surface is programmed to include real-time and/or static input factor data provided by at least one system or sensor input from an aircraft. Such input factor could be used to define an airspace clearance surface.

Abstract: A radar system is configured to predict future storm cell characteristics and display an indication of the characteristics on an electronic display. The system has an antenna configured to receive radar returns from radar scans of storm cells. The system includes processing electronics configured to determine a characteristic of a first storm cell from the radar returns and identify at least one second storm cell. The at least one second storm cell is in the same weather system as the first storm cell. The processing electronics are configured to determine the characteristic for the at least one identified second storm cell, compare the characteristic of the first storm cell with the characteristics of the at least one second storm cell, determine a growth rate of the first storm cell, and calculate a predicted height of the first storm cell at a future time based on the comparison and determined growth rate.

Abstract: The present invention is directed to a system for providing a trusted environment for untrusted computing systems. The system may include a HAC subsystem managing shared resources and a trusted bus switch for controlling a COTS processor to access the shared resources. The shared resources such as memory and several I/O resources reside on the trusted side of the trusted bus switch. Alternatively, the system may include a SCM as an add-on module to an untrusted host environment. Only authenticated applications including COTS OS execute on the SCM while untrusted applications execute on the untrusted host environment. The SCM may control secure resource access from the untrusted host through a plug-in module interface. All secure resources may be maintained on the trusted side of the plug-in module interface.

Abstract: A high-efficiency linear amplifier using non linear circuits. The examples describe of a high-efficiency linear amplifier using non linear circuits (“high-efficiency LINC PA”) that can allow linear (typical of less efficient amplifier modes) amplitude modulation (“AM”) while operating in a high efficiency quasi-Class-E mode. The exemplary quasi class-E amplifier may be classified as being a type of linear amplifier using nonlinear circuits (“LINC”). This LINC circuit typically combines a quasi-class-E power amplifier with bi-directional power switch parallel coupling at least one capacitor within the power amplifier output network. Complementary phase modulation of the drive signals coupled to the power amplifier and a power switch circuit results in an amplitude modulation of the RF output envelope.

Abstract: An aircraft lightning event detector includes a sensor mounted to an aircraft. The sensor determines whether a lightning event has struck the aircraft or induced a possibly damaging current into the aircraft. A threshold mechanism determines whether the sensed lightning event is greater than a predetermined size. A memory stores a record of the sensed lightning event for post-flight maintenance analysis when the lightning event is greater than the predetermined size.

Abstract: The present invention is directed to a method of positioning perspective terrain on a SVS (Synthetic Vision System) based on a navigation solution, the vertical component of which is calculated utilizing a terrain database and sensing unit (which provides height above terrain). The terrain database provides elevation of terrain above MSL. A sensor, such as a GNSS sensor, may be utilized to calculate the navigation solution. In alternative embodiments, the navigation solution is calculated differently based upon the phase of flight. In one, the vertical component calculation utilizes the sensing unit at or below the sensing unit's rated altitude. In another, vertical component calculation blends the sensing unit with the sensor. The blending may be based upon percentages based upon altitude or utilize filtering such as Kalman filtering. The present invention is particularly advantageous for close to ground operations, insuring perspective terrain will stay consistent with the real world.

Abstract: The present invention is a position-based interleave regulation system for communications devices. The device may comprise one or more of the following features: (a) a global positioning system (GPS) receiver capable of receiving positioning data from GPS satellites; (b) a radio frequency (RF) transceiver having at least a first channel and a second channel; (c) a geographical information system (GIS) database of topographical data; (d) a processor capable of optimizing transceiving parameters of the RF transceiver based on the positioning data and topographical data; and (e) a bus linking the GPS receiver, RF transceiver, GIS database, and processor.

Abstract: An information magnification system for providing enhanced display information for a display system for a vehicle. The display system is of a type that includes a first display and a second display. The information magnification system includes a user interface for providing the capability for a user to select a magnification zone of interest on the first display of the vehicle. An information magnification electronics subsystem is associated with the user interface and with the first and second displays to enable the selected magnification zone to be presented on the second display appearing to be behind the physical surface of the second display at a selected distance, thus providing the capability for the user to maintain a far field of focus.

Abstract: An airborne weather radar system is coupled to a display on an aircraft and a radar antenna attached to the aircraft. The airborne weather radar system includes a processing system for receiving weather radar returns from the radar antenna. The radar returns resulting from radar signals are transmitted from the radar antenna. The processing system is configured to compress radar data representing graphical images actually provided on the display on the aircraft. The graphical images are provided in response to the weather radar returns. The radar data is compressed to provide compressed data. The compressed data has reduced spatial resolution when compared to the radar data, wherein the processing system is disposed on the aircraft.