Power line transmission apparatus without public power system noise interference and method thereof
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United States of America Patent
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Apr 8, 2014
Grant Date -
Mar 3, 2011
app pub date -
Dec 23, 2009
filing date -
Aug 31, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A power line transmission apparatus is not interfered by the noise of the public power for transmitting high quality video/audio signal. The power line transmission apparatus includes an isolating unit connected between an external power line and an internal power line for isolating a high frequency noise signal carried on the external power line and transmitting a first power signal of the external power line from the external power line to the internal power line, and a power line network interface. The power line network interface includes at least one digital signal input/output interface for inputting or outputting a digital signal, converting the digital signal, and modulating the converted signal into the first power signal to form a second power signal and transmit the second power signal to the internal power line. A home network system without noise signal interference is built by utilizing several power line transmission apparatuses.
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