Power line communication system
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United States of America Patent
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Apr 10, 2012
Grant Date -
May 6, 2010
app pub date -
Mar 24, 2008
filing date -
Mar 27, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A power line communication system which enables high quality communication utilizing a pair of power lines connected to a vehicle mounted battery, has a pair of communication lines connected to a pair of power lines, respectively, to communicate a high frequency signal of 1 MHz or more. This system has a balance filter which is interposed between each of the communication lines and a vehicle mounted communication apparatus, the filter, a circuit configuration of which is formed in balance type. The communication system also has a pair of electrically balanced lines which are connected between the balance filter and each of the communication apparatuses and are power-fed from the battery, for performing communication between the communication apparatuses.
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