Abstract: An aircraft display system includes an electronic display configured to provide at least one of graphical and textual elements and electronics configured to receive a signal indicating an ambient light level. The electronics set a brightness of the display using a first calculation in response to a desired contrast ratio and the ambient light level and using a second calculation in response to the desired contrast ratio and the ambient light level.

Abstract: A head-up display (HUD) is disclosed. The HUD is provided on board an aircraft. The HUD comprises a projector and a combiner. The combiner enables viewing of the world outside of the combiner and also allows viewing of information provided from the projector. A computer is coupled to the projector and provides airport runway and taxiway symbols conformally mapped onto the combiner. Also provided on the combiner is a mapping of hold lines onto the combiner.

Abstract: A database defining at least one exclusion zone of airport is described. The database includes a computer-implemented memory configured to store and allow retrieval of a plurality of points, the points defining a boundary of an exclusion zone associated with an airport, the area being prohibited for aircraft travel.

Abstract: A head-up display (HUD) is disclosed. The HUD is provided on board an aircraft. The HUD comprises a projector and a combiner. The combiner enables viewing of the world outside of the combiner and also allows viewing of information provided from the projector. A computer is coupled to the projector and provides airport runway and taxiway symbols conformally mapped onto the combiner. Also provided on the combiner is a mapping of virtual airport signs onto the combiner.

Abstract: The present invention is a method and system of aircraft surface operations guidance on a head up display. An aircraft surface operations guidance method includes the following steps. At time t1, a taxi guidance cue and a trend vector are displayed on a head up display of an aircraft. The taxi guidance cue represents a desired position of an aircraft control point of the aircraft at time t2. The trend vector represents a predicted path of the aircraft control point from time t1 to time t2 based on a state of the aircraft at time t1. The trend vector includes a tip representing a predicted position of the aircraft control point at time t2. The tip is maintained within the taxi guidance cue so that the aircraft control point may reach the desired position at time t2.

Abstract: A head-up display (HUD) is disclosed. The HUD is provided on board an aircraft. The HUD comprises a projector and a combiner. The combiner enables viewing of the world outside of the combiner and also allows viewing of information provided from the projector. A computer is coupled to the projector and provides airport runway and taxiway symbols conformally mapped onto the combiner. Also provided on the combiner is a mapping of automatic dependent surveillance broadcast advisory information and traffic onto the combiner.

Abstract: The speed dependent variable display system for a computer-implemented moving-map vehicle display system includes a data conversion module for converting a vehicle speed input signal to a distance range value; and, an application module for utilizing the distance range value, vehicle position information, vehicle direction of movement information, and input geographical information to provide scaled output geographical information. The scaled output geographical information is utilized to provide a situational awareness display which is optimized in accordance with the vehicle's position, direction of movement and speed. A display apparatus receives the scaled output geographical information to provide an optimized situational awareness display for a moving-map vehicle display system.

Abstract: An integrating IR detector array for imaging is provided in a hybrid circuit with InSb mesa diodes (1, 2 . . . 128) in a linear array, a single J-FET preamplifier (30) for readout, and a silicon integrated circuit multiplexer (34). A reset switch (32) is also provided to reset (charge) all of the diodes to a predetermined level at the end of each line scan. Thin film conductors in a fan-out pattern deposited on an Al.sub.2 O.sub.3 substrate (42) connect the diodes to the multiplexer, and thick film conductors also connect the reset switch and preamplifier to the multiplexer. Two-phase clock pulses (.phi..sub.1 and .phi..sub.2) are applied with a logic return signal to the multiplexer through a triax comprised of three thin film conductors deposited one over the other with silicate glass insulation between layers. A lens (14) focuses a scanned image onto the diode array for horizontal read out one line at a time while a scanning mirror (22) provides vertical scan.

Abstract: An improved speaker enclosure apparatus re-radiates biphase sound emanating from a speaker supported therein. When connected to receive a differential sound signal, the sound produced complements the direct sound radiating from "right" and "left" speakers. The enclosure is of compliant material, such that at low frequencies the entire enclosure expands and contracts with the expansion and contraction of the speaker diaphragm, responsive to volume expansion and contraction of the air enclosed in the enclosure. At high frequencies, only thinned portions of the enclosure expand and contract, responsive to the higher frequency sound wavefronts emanating from the speaker. The ability to mold the enclosure and the thinned portions provides a method of controlling the radiated wavefront to a desired shape to be propagated into the listening environment.