Method and device for frequency translation in powerline communications
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United States of America Patent
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-
Jan 10, 2006
Grant Date -
Dec 2, 2004
app pub date -
May 29, 2003
filing date -
May 29, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for transmitting and receiving RF signals for broadband communications using power lines as communication medium. A super-heterodyne structure is used to translate the signals from one frequency to another so as to avoid interference sources, which may corrupt the communication signals. In the heterodyne structure, a plurality of local oscillators are used to mix the local oscillator signals with the communication signals for frequency translation. A plurality of frequency filters are used to filtered out unwanted signals. The communication signals are imparted onto or received from the power lines via couplers operatively connected to modems.
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