Boots – shoes – and leggings
Patent
1995-06-07
1997-04-01
Voeltz, Emanuel T.
Boots, shoes, and leggings
455 31, 455 63, 348 8, H04H 102
Patent
active
056173318
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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Frost, Jr. William A.
Lemmer John E.
Wakai Bruce M.
Assouad Patrick J.
Matsushita Avionics Development Corporation
Voeltz Emanuel T.
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