Communication apparatus, communication system, and communication control method
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United States of America Patent
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Dec 11, 2012
Grant Date -
Oct 2, 2008
app pub date -
Mar 27, 2008
filing date -
Mar 27, 2007
priority date (Note) -
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Abstract
A communication apparatus which performs a carrier detection and is connected to a transmission line includes: a carrier detecting unit which detects a first preamble signal for the carrier detection and a second preamble signal for the carrier detection; a comparing unit which compares carrier detecting results obtained by the carrier detecting unit; and a control unit which controls at least one of a symbol length of the first preamble signal and a symbol length of the second preamble signal based upon a comparison result obtained by the comparing unit.
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