Integrated video and audio signal distribution system and method for use on commercial aircraft and other vehicles
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United States of America Patent
Stats
-
Jan 21, 1997
Grant Date -
N/A
app pub date -
Jun 1, 1993
filing date -
Jun 1, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A passenger entertainment system employing an improved digital audio signal distribution system and method for use on commercial aircraft and other vehicles. A plurality of digital audio signal sources are provided for generating a plurality of compressed digital audio signals. The compressed digital audio signals are provided to a multiplexer which domain multiplexes those signals to produce a single composite digital audio data signal. The composite digital audio data signal is provided to a demultiplexer which is capable of selecting a desired channel from the composite digital audio data signal. The selected channel is provided to a decompression circuit, where it is expanded to produce a decompressed digital output signal. The decompressed digital output signal is then provided to a digital-to-analog converter and converted to an analog audio signal. The analog audio signal is provided to an audio transducer.
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Family
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