Abstract: A multimedia delivery system of a vehicle is provided comprising a passive configuration plug designed as a line-replaceable unit that permits quick and easy reconfiguration based on changing needs of the vehicle owner. The system comprises a plurality of multimedia servers comprising multimedia data files, a plurality of end user display devices that display information from the multimedia servers, and a configuration plug designed as a line-replaceable unit comprising: a frame, one or more covers connected to the frame, a plug mount comprising an end-user device plug and a server plug, wherein both the device plug and the server plug each contain a plurality of cable connectors, a plurality of cables, each connecting to a connector of the device plug on one end, and a connector of the server plug on an other end, the connections defining a cable mapping between the devices and the servers.

Abstract: A multimedia delivery system of a vehicle is provided comprising a passive configuration plug designed as a line-replaceable unit that permits quick and easy reconfiguration based on changing needs of the vehicle owner. The system comprises a plurality of multimedia servers comprising multimedia data files, a plurality of end user display devices that display information from the multimedia servers, and a configuration plug designed as a line-replaceable unit comprising: a frame, one or more covers connected to the frame, a plug mount comprising an end-user device plug and a server plug, wherein both the device plug and the server plug each contain a plurality of cable connectors, a plurality of cables, each connecting to a connector of the device plug on one end, and a connector of the server plug on an other end, the connections defining a cable mapping between the devices and the servers.

Abstract: A wireless communication system for a vehicle includes a seat or overhead video display unit, a control and audio unit that is associated with and located remotely with respect to the video display unit, a first wireless transceiver associated with the video display unit, a second wireless transceiver associated with the control and audio unit, where the first and second wireless transceivers are linked together for communication. The video display unit receives audiovisual content and splits audio content for transmission to the control unit. The control unit can similarly transmit control and selection information to the video display unit.

Abstract: A system and method permit remote recovery of audio from audiovisual or multimedia content for a video display unit. Audio is recovered from the audiovisual content sent to a first network address and is packetized for transmission over a network that may utilized an existing wiring infrastructure that provides audio and video-on-demand content to a second network address. The audio packets are reassembled by hardware associated with the second network address and analog audio created from the audio packets is provided at an output to an audio device.

Abstract: A detector and alarm is provided for monitoring air pressure variations in a monitored space, which variations correspond to an intrusion. An infra-sonic detector includes a microphone or the like and a low pass filter to retain only low frequency infra-sonic signals or a bandpass filter to retain a particular range of frequencies between approximately 5 Hz and 12 Hz. The instantaneous infra-sonic signals are compared against a variable reference signal, which is a voltage lagging or delayed variant of the instantaneous signals. In this manner the detector is self adjusting for slow variations in the instantaneous signals but responds immediately to rapid variations to trigger an alarm. In one embodiment the detector only senses negative going air pressure changes to trigger an alarm in order to minimize the incidence of false alarms.