Abstract: An aircraft information retrieval system comprises a digital audio panel operable to receive an analog voice signal representing a request for the display of graphical information and convert the analog voice signal to a digital voice signal. The system further comprises a remote audio processor coupled to the digital audio panel, the remote audio processor configured to receive the digital voice signal. The remote audio processor is further operable to determine an information request from the digital voice signal. A command processor, coupled to the remote audio processor, is configured to receive the information request and to retrieve the graphical information.

Abstract: A communications system having a plurality of radio communication modes with an audio component, the audio component of the radio communication modes being controlled through an audio panel, and a radiotelephony mode with an audio component being controlled by a radiotelephony device, the audio component of the radiotelephony mode having an audio input for supplying audio to the radiotelephony device. The radiotelephony audio component is integrated with the audio panel, by providing an interface between the audio panel and the radiotelephony device, coupling the audio input of the radiotelephony mode to the audio panel, and directing the audio input of the radiotelephony mode to the interface, the interface coupling the audio input of the radiotelephony mode to the radiotelephony device.

Abstract: A synchronization mechanism and method for synchronizing remote audio devices that are coupled together with a bus is provided. The synchronization mechanism compares a signal on the bus with a clock signal on the audio device and adjusts the clock in response to the comparison. This allows the synchronization mechanism to accurately synchronize remote audio devices without requiring high precision clocks or other complicated solutions. The synchronization mechanism and method are particularly applicable to synchronizing remote audio devices in a distributed audio system that digitally sample and broadcast for communication purposes. In this application, the synchronization mechanism improves audio quality by synchronizing the sampling and outputting of each audio device on the bus. This improves audio quality by reducing the distortion that occurs as a result of varying sample times.

Abstract: A standardized control panel for aircraft provides manually operable controls that are configured to activate an aircraft function if the requested aircraft function is installed on the aircraft or, are otherwise configured to activate a visual indicator if the requested aircraft function is absent from the aircraft.

Abstract: A standardized control panel for aircraft provides manually operable controls that are configured to activate an aircraft function if the requested aircraft function is installed on the aircraft or, are otherwise configured to activate a visual indicator if the requested aircraft function is absent from the aircraft.

Abstract: A method and system for limiting transmission to a single operator is provided. The system and method determines if another user in the audio system is currently transmitting before allowing a new transmission from another user to proceed. This assures that the only one member of the vehicle crew can transmit at a time, limiting the opportunity for outputs from multiple users to garble the transmission. In another embodiment of the present invention, a system and method are provided that allows for the transmission of aural warning on a digital bus. The system and method allows different types of warnings to be delivered to vehicle crew members throughout the vehicle. This facilitates efficient and reliable distribution of warnings to remote crew members. In another embodiment of the present invention, a system and method are provided that notifies the user of an audio system when all outputs of the audio system have been disabled.

Abstract: The present invention includes a processor configured to receive at least one operating parameter from an operating parameter input and, based on the operating parameter, configure at least one filter to filter a signal.

Abstract: A communications system having a plurality of radio communication modes with an audio component, the audio component of the radio communication modes being controlled through an audio panel, and a radiotelephony mode with an audio component being controlled by a radiotelephony device, the audio component of the radiotelephony mode having an audio input for supplying audio to the radiotelephony device. The radiotelephony audio component is integrated with the audio panel, by providing an interface between the audio panel and the radiotelephony device, coupling the audio input of the radiotelephony mode to the audio panel, and directing the audio input of the radiotelephony mode to the interface, the interface coupling the audio input of the radiotelephony mode to the radiotelephony device.