Vehicle communications system
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United States of America Patent
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-
Feb 28, 2012
Grant Date -
Apr 8, 2010
app pub date -
Sep 25, 2009
filing date -
Sep 25, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The improved vehicle crew communication system provides an increase in the number of wireless headsets that can be used with one base station, an increase range from the vehicle for operation of said headsets, full duplex operation communication over digitally encrypted DECT protocol links from one base station to a plurality of headsets, pairing of each headset to a particular base station, use of wireless technology inside and outside of the vehicle, automatic channel and link selection to transparently avoid interfered-with channels and links, removal of the need to manually select a channel on the headset, and the combination of the noise-cancelling microphone with noise threshold, noise attenuation, and line echo cancellation tuned to intercom parameters.
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