Abstract: The display includes a light source and a filter positioned to receive light from the light source. The filter has a different wavelength characteristic depending upon an angle of incidence of light thereon. The angle of incidence is adjustable. The display can be utilized in an avionic display system with night vision equipment. The wavelength characteristic can be a cutoff wavelength characteristic.

Abstract: A rubidium frequency standard is compensated for frequency variations over temperature by allowing the rubidium frequency standard to vary while holding the output frequency constant. A voltage controlled crystal oscillator, locked to a physics package, provides the output signal. A temperature sensor senses temperature and proves a temperature signal to a microcontroller. A frequency synthesizer receives the output signal from the voltage controlled crystal oscillator as a reference and provides an RF signal to the physics package. The microcontroller looks up a frequency error in a memory in accordance with the temperature signal, generates an offset control word for the frequency synthesizer to compensate for the temperature and adjusts the VCXO with an error signal to compensate for temperature.

Abstract: A method and system for managing communication resources between nodes in a network, and more particularly to a dynamic distributed multi-channel time division multiple access (TDMA) slot assignment method is presented. The method and apparatus include a set of higher level heuristics that enable the wireless channel access scheme to address predetermined characteristics of the wireless channel access system. These predetermined heuristics include using bootstrap slots, adaptive broadcast cycles, channelized neighborhoods, neighbor segregation, frame fitting, hard circuits, and soft circuits.

Abstract: A system and method for debugging a partitioned avionics computer which uses a debugging dump memory and a debugging dump memory controller which take control of the main system bus of the computer for a predetermined amount of time.

Abstract: An optically addressed direct view photo luminescent display having a phosphor panel having multi-color pixelated surface with molecularly aligned materials therein and a printed bar code pixel identifier on an internal side for providing feedback of scanning beam to pixel registration.

Abstract: A distributed electronic warfare system includes a central control site for controlling and receiving data from the system and utilizes a satellite communications system for communications within the system. Electronic warfare pods are attached to variety of aircraft. The electronic warfare pods listen to signals from targets and jam the targets under control of the central control site. The pods supply the data to the central control site. The pods have antennas for radiating jamming signals to the targets and receiving signals from the targets. Transmitters in the pods generate jamming signals and receivers receive the signals from the targets. A signal processor processes the received signals from the targets. The pods may be used for search and collection, geolocation, and electronic attack under control of the central control site.

Abstract: A data transfer mechanism for directing data signals from signal-producing elements to signal-receiving elements is disclosed. The data transfer mechanism includes a plurality of input ports, with each input port being connected to a signal-producing element, and a plurality of output ports, with each output port being connected to a signal-receiving element. Each data signal that enters the data transfer mechanism through one of the plurality of input ports has data identification information associated therewith. The, data transfer mechanism directs the data signal to at least one of the plurality of output ports according to the data identification information associated with the data signal.

Abstract: A method of assisting movement of a cursor toward a target on a display screen is disclosed. According to the method, an initial cursor movement is detected. It is determined whether the direction of the initial cursor movement includes a component that is directed toward the target. A movement correction is defined as at least a portion of the component when the cursor is within a predetermined distance from the target. The initial cursor movement is combined with the movement correction to create a total cursor movement. The magnitude of the total cursor movement is adjusted to equal the magnitude of the initial cursor movement. If the cursor is within predetermined distances from multiple targets, a movement correction for each target is defined, and the movement corrections for all targets are combined with the initial cursor movement to create a total cursor movement. The magnitude of the total cursor movement is adjusted to equal the magnitude of the initial cursor movement.

Abstract: An integrated surface moving map advisory system that provide selectable amounts of simplified airport layout information, simultaneously with authorized ground movement authority in order to provide highly informative and intuitive guidance with respect to all aspects of operating an aircraft or other vehicle in a controlled geographical area. The advisory system may be further enhanced by the additional overlay of symbols representing other airport traffic along with the general intentions of such traffic.

Abstract: A flight display for use in an avionics system has a visual display format to show an enhanced vertical situation of an aircraft. Included is a vertical terrain profile display that displays terrain in front of the aircraft over a selected range and a selected swathe width. The vertical terrain profile display shows a side-on terrain profile view with a digital display of the selected swathe width and a display of range in front of the aircraft. A plan view of the aircraft position is included that shows swathe lines on either side of an aircraft to show the selected swathe width. A means for selecting the swathe width by the pilot is provided. The flight display the vertical terrain profile display may be changed into a end-on vertical terrain profile view over the selected swathe width. The end-on terrain profile view has a digital display of the selected range and a digital display of the selected swathe width on each side of the aircraft.

Abstract: A primary flight display with three-dimensional capability provides information in an intuitive format for enhanced situational awareness. The display also includes other navigational data such as airspeed, attitude, altitude, and heading. The display may also include three view slices, a pictorial autopilot status indicator, vertical and lateral deviation and deviation history, glide slope and localizer information, airport and runway information, past position history of the aircraft and other nearby aircraft. The display may depict potential threats to the aircraft such as terrain or other manmade obstacles, nearby aircraft, severe weather thus increasing situational awareness with respect thereto. In a preferred embodiment, the three dimensional tactical map is implemented as a frequency separated display.

Abstract: Methods of measuring phase angle and decoding a pseudo-random noise (PRN) code by applying High Resolution Correlators, having three or more correlators signals, where at least two signals, or multiples of two, are equally distanced advanced or delayed signals from the PRN signal with the option of one signal substantially in sync with the PRN signal. A phase tracking error is computed when measuring phase angle or adjusting the relative timing difference by adjusting the phase of the locally generated PRN signals when the error signal has a non-zero magnitude, in a manner to drive said error signal to zero when decoding the PRN code.

Abstract: A device for enhancing altitude awareness in an avionics display is disclosed. The device includes an altitude indicator that displays a current altitude on the avionics display. A scrolling display of altitude levels is displayed with the altitude indicator on the avionics display. The scrolling display includes a plurality of scaled numbers that represent predetermined intervals of altitude levels surrounding the current altitude. The scrolling display also includes a non-numeric graphic construct that is displayed adjacent the plurality of scaled numbers. The graphic construct has first and second substantially mirror-image portions that are positioned on first and second opposing sides of the plurality of scaled numbers. A controller causes the altitude indicator to display the current altitude on the avionics display.

Abstract: A system for interconnecting multiple GPS receivers via a single line to simultaneously communicate both serial data and precise timing pulses to numerous GPS receivers using a time multiplexed data format.

Abstract: An integrated side stick controller combines air speed, turning and altitude changing rate control into one pilot input control device. Movements of the integrated side stick controller will perform manipulations on aircraft surfaces devices in order to maneuver the aircraft. For instance, fore and aft movement of the side stick will increase/decrease the air speed, left/right movements of the side stick will control the turning of the aircraft, and up/down movements of the slider on the side stick will change the ascend/descend rate of the aircraft.

Abstract: Use of a filter in lieu of a secondary reflector in a reflective telescope provides compact design that eliminates the obstruction caused by the secondary reflector. The filter is selectively reflective to either the angle of incidence of radiation striking the filter or to the polarization exhibited by the radiation. An angularly sensitive filter may be constructed to either a bandpass filter or a short pass filter. A filter that is sensitive to polarization is constructed from a cholesteric liquid crystal. The filter is disposed in front of a primary reflector that comprises an aperture for collecting radiation observed by the telescope.

Abstract: A projection display has a display screen for displaying images formed by image engines illuminated by a high-reliability illumination source. The illumination source contains lamps for illumination of the image engines. Optical components conduct the light from the lamps to the image engines such that when a lamp fails illumination is maintained on the display screen by varying the power to the remaining lamps. A lamp power controller senses failure of a lamp and varies the power to the remaining lamps to compensate for the lamp failure.

Abstract: A ruggedized electronics system is disclosed. The ruggedized electronics system includes at least one ruggedized electronics module. The electronics module has an electrical module coupling. The ruggedized electronics system also includes an open framed chassis provided with more than one electrical chassis coupling. At least one electrical chassis coupling is coupled to at least one electronic module. The electronics modules may be coupled to and decoupled from the chassis, so that the system may be selectively reconfigured.

Abstract: An ultra wideband interconnect from an external cable to an electric circuit. The interconnect includes an external cable including an external cable pin that projects from the termination of the external cable, an internal circuit, a conductive media coupled to the external cable pin and the internal circuit, and a package wall positioned between the external cable and the internal circuit. The package wall includes a cavity extending between the external cable and the internal circuit, the cavity having a coaxial structure. Further, the pin extends into but not through the cavity. The conductive media is coupled to the external cable pin within the cavity.

Abstract: A multi-band phased array antenna for radiating low frequency band signals and high frequency band signals. The multiband phased array antenna is formed from unit cells having waveguides for radiating high frequency band signals and end-fire radiating elements for radiating low frequency band signals. The unit cells have four walls with an open input end and an open radiating end. End-fire radiating elements are disposed on inner surfaces and outer surfaces of the four walls and radiate out the radiating end. Four waveguides are disposed together to radiate into the input end of the low frequency assembly.