Abstract: A method is provided for controlling when a transponder replies to Mode-S interrogation signals. The method includes receiving Mode-S signals containing P5 and P6 pulses. The received P5 and P6 pulses have certain amplitudes. Each P6 pulse contains a sync phase reversal (SPR) signal followed by a data segment containing Mode-S data The P5 pulse is asynchronous with respect to the P6 pulse and the P5 pulse is timed to overlay the SPR signal. The method further includes, analyzing each P5 and corresponding P6 pulse, and identifying the SPR signal correctly in at least 99% of the received Mode-S signals in which the amplitude of the P6 pulse is at least 12 dB greater than the amplitude of the P5 pulse and in no more than 2% of the received Mode-S signals in which the amplitude of the P6 pulse is at least 3 dB less than the amplitude of the P5 pulse, and replying to the Mode-S signals for which the SPR signal is correctly identified.

Abstract: Systems and methods are provided for customized displays and customized presentations of cockpit data. Configurable soft keys or controls located in close proximity to a cockpit display are provided. Each key is configured to perform a desired display function or other function. Labels are displayed adjacent to each of the soft keys to identify each of the soft keys. A display is operable to provide multiple views, each view within the display is adapted to be overlaid with additional cockpit data if so configured. Furthermore, each view is capable of being presented from one or more selectable perspectives as desired.

Abstract: Systems and methods are provided for integrated control, access, and presentation of flight information within the cockpit. Cockpit instrument systems and methods are provided which include a first cockpit instrument panel which has a first display proximately located to a first bezel. The first display is operable to present navigational data, communication data, and flight information data including airspeed, attitude, and altitude. The systems and methods further include a second cockpit instrument panel located adjacent to the first cockpit instrument panel. The second cockpit instrument panel has a second display proximately located to a second bezel. The second display is operable to present navigational data, communication data, and flight information data including detailed engine parameters.

Abstract: Systems and methods are provided for integrated control, access, and presentation of flight information within the cockpit. Cockpit instrument systems and methods are provided which include a first cockpit instrument panel which has a first display proximately located to a first bezel. The first display is operable to present navigational data, communication data, and flight information data including airspeed, attitude, and altitude. The systems and methods further include a second cockpit instrument panel located adjacent to the first cockpit instrument panel. The second cockpit instrument panel has a second display proximately located to a second bezel. The second display is operable to present navigational data, communication data, and flight information data including detailed engine parameters.

Abstract: Systems and methods for cockpit control systems are provided. A sensor associated with a first display is adjustable and a first setting associated with the sensor is simultaneously displayed on the first display and a second display as the sensor is adjusted. Furthermore, a second sensor associated with the second display is adjusted and a second setting associated with the second sensor is simultaneously displayed on the second display and the first display. The first setting is adjustable from the second display, and the second setting is adjustable from the first display. Moreover, the first display provides backup should the second display fail, and the first sensor provides backup to the second sensor in event the second sensor fails.

Abstract: A method is provided for controlling transponder replies to Mode-S interrogation signals. The method includes receiving Mode-S signals containing P5 and P6 pulses each having certain amplitudes. Each P6 pulse contains a sync phase reversal (SPR) signal followed by a data segment containing Mode-S data. The P5 pulse is asynchronous with respect to the P6 pulse and is timed to overlay the SPR signal. The method includes, analyzing each P5 and corresponding P6 pulse, identifying the SPR signal correctly in the received Mode-S signals in which the amplitude of the P6 pulse is at least 12 dB greater than the amplitude of the P5 pulse and in no more than 2% of the received Mode-S signals in which the amplitude of the P6 pulse is at least 3 dB less than the amplitude of the P5 pulse, and replying to the Mode-S signals where the SPR signal is correctly identified.

Abstract: A Mode-S transponder is provided for detecting synchronization phase reversal (SPR) signal. The transponder includes a receiver for receiving a Mode-S signal that contains a P6 pulse having a Mode-S data segment and an SPR signal therein. The transponder also includes a phrase detector that detects a phase change between first and second states in the received Mode-S signal. The phase detector includes an SPR qualifier that determine whether, following a state change, the Mode-S signal remains at one of the first and second states for at least a predetermined minimum time sufficient to qualify as a detector enable signal.

Abstract: An electronic equipment module, as well as a system and a method for mounting electronic equipment modules are disclosed, an electronic equipment module is provided as a symmetrical casting. The electronic equipment module includes a first chassis unit which attaches to a second chassis unit. Each chassis unit has a mounting recess adapted to receive one or more circuit assemblies. The mounting recesses can be separated by a cover applied to one unit, the other unit, or both. The module is normally mounted within a unit rack, and thus, can have a removably attachable, and re-orientable keyed surface on its rear face which mates with a corresponding keyed surface on the interior surface of the unit rack. The mounting system includes a mounting frame, a plurality of electronic equipment modules, and a unit rack coupled to at least one of the electronic equipment modules and the mounting frame.

Abstract: Systems and methods are provided for integrating cockpit controls and data associated with the controls into a single interface having a bezel surrounding a single display. Furthermore in one embodiment, a system includes two bezels having individual and duplicate controls affixed thereon, where each bezel surrounds a display operable to present data related to the controls. Moreover, the bezels are proximate to one another. Additionally in one embodiment, a system, having an audio control panel interposed between two bezels, is provided.

Abstract: A DMA computer system (10) for driving a peripheral device such as an LCD display (12) of a GPS receiver without stealing excessive cycles from a CPU (18). The DMA computer system (10) includes a CPU (18), a first memory (20) that may be written to or read by the CPU (18), a second memory (22) that may be written to or read by the CPU (18), and a DMA controller (24) coupled with the CPU (18) and the second memory (22). The DMA controller (24) is operable to: read data from the second memory (22) and transfer the data to the peripheral device; delay the CPU (18) from accessing the second memory (22) while the DMA controller (24) is reading data from the second memory (22); enable the CPU (18) to regain access to the second memory (22) once the DMA controller (24) has finished reading data from the second memory (22); and allow the CPU (18) to access the first memory (20) without delay even while the DMA controller (24) is reading data from the second memory (22).